background image

_______________General Description

The MAX987/MAX988/MAX991/MAX992/MAX995/

MAX996 single/dual/quad micropower comparators

feature low-voltage operation and Rail-to-Rail® inputs

and outputs. Their operating voltage ranges from +2.5V

to +5.5V, making them ideal for both 3V and 5V sys-

tems. These comparators also operate with ±1.25V to

±2.75V dual supplies. They consume only 48µA per

comparator while achieving a 120ns propagation delay.

The common-mode input voltage range extends 250mV

beyond the supply rails. Input bias current is typically

1.0pA, and input offset voltage is typically 0.5mV.

Internal hysteresis ensures clean output switching,

even with slow-moving input signals.

The output stage’s unique design limits supply-current

surges while switching, virtually eliminating the supply

glitches typical of many other comparators. This design

also minimizes overall power consumption under

dynamic conditions. The MAX987/MAX991/MAX995

have a push/pull output stage that sinks as well as

sources current. Large internal output drivers allow rail-

to-rail output swing with loads up to 8mA. The

MAX988/MAX992/MAX996 have an open-drain output

stage that can be pulled beyond V

CC

to 6V (max)

above V

EE

. These open-drain versions are ideal for

level translators and bipolar to single-ended converters.

The single MAX987/MAX988 are available in tiny 5-pin

SOT23 packages. 

____________________________Features

o

120ns Propagation Delay

o

48µA Quiescent Supply Current

o

+2.5V to +5.5V Single-Supply Operation

o

Common-Mode Input Voltage Range Extends

250mV Beyond the Rails

o

Push/Pull Output Stage Sinks and Sources 

8mA Current (MAX987/MAX991/MAX995)

o

Open-Drain Output Voltage Extends Beyond V

CC

(MAX988/MAX992/MAX996)

o

Unique Output Stage Reduces Output Switching

Current, Minimizing Overall Power Consumption

o

100µA Supply Current at 1MHz Switching

Frequency 

o

No Phase Reversal for Overdriven Inputs

o

Available in Space-Saving Packages:

5-Pin SOT23 (MAX987/MAX988)

8-Pin 

µ

MAX (MAX991/MAX992)

MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

________________________________________________________________

Maxim Integrated Products

1

V

CC

IN-

IN+

1

5

V

EE

OUT

MAX987

MAX988

SOT23

TOP VIEW

2

3

4

_________________Pin Configurations

19-1266; Rev 0b; 7/97

PART

MAX987

EUK-T

MAX987ESA

MAX988

EUK-T

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

TEMP. RANGE

PIN-

PACKAGE

5 SOT23-5

8 SO

5 SOT23-5

______________Ordering Information

Ordering Information continued at end of data sheet.

Typical Application Circuit appears at end of data sheet.

COMPARATORS

PER PACKAGE

OUTPUT

STAGE

MAX987

1

Push/Pull

MAX991

2

Push/Pull

PART

MAX992

2

Open-Drain

MAX995

4

Push/Pull

MAX996

4

Open-Drain

PIN-

PACKAGE

8 SO/

5 SOT23-5

8 SO/µMAX

8 SO/µMAX

14 SO

14 SO

8 SO/

5 SOT23-5

MAX988

1

Open-Drain

Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.

Pin Configurations continued at end of data sheet.

MAX988ESA

-40°C to +85°C

8 SO

SOT

TOP MARK

ABZB

ABZC

Portable/Battery-

Powered Systems

Mobile Communications

Zero-Crossing Detectors

Window Comparators

Level Translators

Threshold Detectors/

Discriminators

Ground/Supply Sensing 

IR Receivers

Digital Line Receivers

_____________________Selector Guide

________________________Applications

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

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MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS (Note 1)

(V

CC

= +2.7V to +5.5V, V

EE

= 0V, V

CM

= 0V, T

A

= -40°C to +85°C, unless otherwise noted. Typical values are at T

A

= +25°C.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Supply Voltage (V

CC

to V

EE

)  ...................................................6V

IN_-, IN_+ to V

EE

.......................................-0.3V to (V

CC

+ 0.3V)

OUT_ to V

EE

MAX987/MAX991/MAX995 ....................-0.3V to (V

CC

+ 0.3V)

MAX988/MAX992/MAX996.....................................-0.3V to 6V

OUT_ Short-Circuit Duration to V

EE

or V

CC

.......................10sec

Continuous Power Dissipation (T

A

= +70°C)

5-Pin SOT23 (derate 7.10mW/°C above +70°C)...........571mW

8-Pin SO (derate 5.88mW/°C above +70°C).................471mW

8-Pin µMAX (derate 4.10mW/°C above +70°C) ............330mW

14-Pin SO (derate 8.33 mW/°C above +70°C)..............667mW

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10sec) .............................+300°C

Inferred from PSRR test

CONDITIONS

V

2.5

5.5

V

CC

Supply Voltage 

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

53

80

2.5V 

V

CC

5.5V

dB

55

80

PSRR

Power-Supply Rejection Ratio

V

CC

= 5V

96

mV

±0.5

±5

T

A

= +25°C

V

EE

-

V

CC

+

0.25

0.25

±2.5

V

HYST

Input Hysteresis

Full common-mode

range

nA

I

B

Input Bias Current

(Note 4)

0.001

10

pF

1.0

C

IN

Input Capacitance

dB

50

80

CMRR

Common-Mode Rejection Ratio

pA

0.5

I

OS

Input Offset Current

±7

V

OS

Input Offset Voltage 

(Note 3)

V

OUT

= high

µA

1.0

I

LEAK

Output Leakage Current

(MAX988/MAX992/

MAX996 only)

35

95

T

A

= +25°C

T

A

= -40°C to +85°C

48

80

V

CC

= 2.7V

µA

96

I

CC

Supply Current per

Comparator

T

A

= +25°C

T

A

= -40°C to +85°C

Sourcing or sinking,

V

OUT

= V

EE 

or V

CC

I

SC

Output Short-Circuit Current

T

A

= +25°C

T

A

= -40°C to +85°C

T

A

= -40°C to +85°C

V

EE

V

CC

V

V

CMR

Common-Mode Voltage

Range (Note 2)

mV

V

CC

= 5V

V

CC

= 2.7V

mA

V

CC

= 5V,

I

SINK

= 8mA

0.55

0.2

0.4

V

OL

OUT Output Voltage Low

V

CC

= 2.7V,

I

SINK

= 3.5mA

V

0.4

0.15

0.3

T

A

= +25°C

T

A

= -40°C to +85°C

T

A

= +25°C

T

A

= -40°C to +85°C

T

A

= +25°C

V

CC

= 5V,

I

SOURCE

= 8mA

T

A

= -40°C to +85°C

4.45

4.6

4.85

V

OH

T

A

= +25°C

OUT Output Voltage High

(MAX987/MAX991/

MAX995 only)

V

CC

= 2.7V,

I

SOURCE

= 3.5mA

T

A

= -40°C to +85°C

V

2.3

2.4

2.55

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MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

(V

CC

= +2.7V to +5.5V, V

EE

= 0V, V

CM

= 0V, T

A

= -40°C to +85°C, unless otherwise noted. Typical values are at T

A

= +25°C.)

CONDITIONS

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

V

CC

= 5.0V

ns

40

t

RISE

OUT Rise Time

(MAX987/MAX991/

MAX995 only)

20

15

µs

25

t

PU

Power-Up Time

ns

V

CC

= 5.0V

40

t

FALL

OUT Fall Time

20

15

120

210

100mV overdrive

100mV overdrive

C

L

= 15pF,

V

CC

= 5V

120

t

PD+

Propagation Delay

210

ns

210

t

PD-

120

MAX987/MAX991/

MAX995 only

10mV overdrive

100mV overdrive

MAX987/MAX991/MAX995

only, C

L

= 15pF, V

CC

= 5V

10mV overdrive

10mV overdrive

C

L

= 15pF

C

L

= 50pF

C

L

= 200pF

C

L

= 15pF

C

L

= 50pF

C

L

= 200pF

MAX988/MAX992/

MAX996 only,

R

PULL-UP

= 5.1k

Note 1:

The MAX98 _EUK specifications are 100% tested at T

A

= +25°C. Limits over the extended temperature range are guaran-

teed by design, not production tested.

Note 2:

Inferred from the V

OS

test. Either or both inputs can be driven 0.3V beyond either supply rail without output phase reversal.

Note 3:

V

OS

is defined as the center of the hysteresis band at the input.

Note 4:

I

B

is defined as the average of the two input bias currents (I

B-

, I

B+

).

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__________________________________________Typical Operating Characteristics

(V

CC

= 5V, V

CM

= 0V, T

A

= +25°C, unless otherwise noted.)

30

40

50

60

70

80

90

-60

-20

-40

0

20

40

60

80

100

SUPPLY CURRENT PER COMPARATOR

vs. TEMPERATURE

MAX9879 TOC1

TEMPERATURE (°C)

SUPPLY CURRENT (

µ

A)

V

CC

 = 5.5.V

V

CC

 = 2.5.V

V

IN+ 

> V

IN-

1000

10

0.01

0.1

1

10

100

1000 10,000

SUPPLY CURRENT PER COMPARATOR

vs. OUTPUT TRANSITION FREQUENCY

MAX987 TOC2

OUTPUT TRANSITION FREQUENCY (kHz)

SUPPLY CURRENT (

µ

A)

100

 

V

CC

 = 2.5V

V

CC

 = 5.5V

MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

4

_______________________________________________________________________________________

10,000

1

0.01

0.1

1

10

100

OUTPUT LOW VOLTAGE

vs. OUTPUT SINK CURRENT

MAX987-03a

OUTPUT SINK CURRENT (mA)

OUTPUT LOW VOLTAGE (mV) (V

OL

)

10

100

1000

V

IN+

 < V

IN-

V

CC

 = 2.7V

V

CC

 = 5.0V

120

0

-60

100

OUTPUT SHORT-CIRCUIT  

CURRENT vs. TEMPERATURE

20

10

90

80

110

100

MAX987 05

TEMPERATURE (°C)

OUTPUT SINK CURRENT (mA)

-40

-20

0

20

40

60

80

70

60

50

40

30

V

CC

 = 5.0V

V

CC

 = 2.7V

1.1

-0.3

-60

100

INPUT OFFSET VOLTAGE

vs. TEMPERATURE

-0.1

0.7

0.9

MAX987 06

TEMPERATURE (°C)

OFFSET VOLTAGE (mV)

-40

-20

0

20

40

60

80

0.5

0.3

0.1

10,000

0.1

0.01

0.1

1

10

100

OUTPUT HIGH VOLTAGE

vs. OUTPUT SOURCE CURRENT

1

MAX987-04

OUTPUT SOURCE CURRENT (mA)

OUTPUT HIGH VOLTAGE

 (mV) (V

CC

 - V

OH

)

10

100

1000

V

IN+

 > V

IN-

V

CC

 = 5.0V

V

CC

 = 2.7V

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MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

_______________________________________________________________________________________

5

__________________________________________Typical Operating Characteristics

(V

CC

= 5V, V

CM

= 0V, T

A

= +25°C, unless otherwise noted.)

100

110

130

150

170

190

120

140

160

180

200

-60

-20

-40

0

20

40

60

80

100

PROPAGATION DELAY

vs. TEMPERATURE

MAX987 TOC9

TEMPERATURE (°C)

PROPAGATION DELAY (ns)

V

CC

 = 5.5.V

V

CC

 = 2.5.V

V

OD

 = 50mV

1000

10,000

100

0.01

0.1

10

1

100

1000

PROPAGATION DELAY

vs. CAPACITIVE LOAD

MAX987 TOC8

CAPACITIVE LOAD (nF)

PROPAGATION DELAY (ns)

V

OD

 = 50mV

300

0

0

60

120

20

80

40

100

140

PROPAGATION DELAY

vs. INPUT OVERDRIVE

100

50

250

200

150

MAX987 TOC10

INPUT OVERDRIVE (mV)

PROPAGATION DELAY (ns)

V

CC

 = 2.5V

V

CC

 = 5.5V

PROPAGATION DELAY (t

PD-

)

IN+

OUT

MAX987-12

100ns/div

50mV/

div

2V/div

V

OD 

= 50mV  

MAX987/MAX991/MAX995

PROPAGATION DELAY (t

PD+

)

IN+

OUT

MAX987-11

100ns/div

50mV/

div

2V/div

V

OD 

= 50mV  

MAX987/MAX991/MAX995

SWITCHING CURRENT, OUT RISING

IN+

OUT

I

CC

MAX987-13

200ns/div

50mV/

div

2V/div

2mA/div

V

OD 

= 50mV  

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MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

6

_______________________________________________________________________________________

POWER-UP DELAY

V

CC

OUT

MAX987-16

5

µ

s/div

2V/div

2V/div

V

IN-

 = 50mV

V

IN+

 = 0V

SWITCHING CURRENT, OUT FALLING

IN+

OUT

I

CC

MAX987-14

200ns/div

50mV/

div

2V/div

2mA/div

V

OD

 = 50mV

1MHZ RESPONSE

IN+

OUT

MAX987-15

200ns/div

50mV/

div

2V/div

V

OD

 = 50mV

____________________________Typical Operating Characteristics (continued)

(V

CC

= 5V, V

CM

= 0V, T

A

= +25°C, unless otherwise noted.)

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MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

_______________________________________________________________________________________

7

______________________________________________________________Pin Description

N.C.

1, 5, 8

No Connection. Not internally connected.

IND-

OUTD

IND+

INC+

13

14

12

10

OUTC

INC-

OUTB

INA-

INB+

INB-

INA+

OUTA

V

CC

IN-

V

EE

IN+

OUT

Comparator D Inverting Input

8

9

7

2

5

6

3

1

4

11

Comparator D Output

7

2

5

6

3

1

8

4

Comparator D Noninverting Input

Comparator C Output

Comparator C Inverting Input

Comparator B Output

Comparator C Noninverting Input

Comparator A Inverting Input

Comparator B Noninverting Input

Comparator B Inverting Input

Comparator A Noninverting Input

Comparator A Output

2

7

Positive Supply Voltage

4

2

Comparator Inverting Input

5

4

Negative Supply Voltage

3

3

Comparator Noninverting Input

1

6

Comparator Output

NAME

SO

MAX995

MAX996

MAX991

MAX996

SO/µMAX

MAX987

MAX988

SOT23-5

SO

PIN

FUNCTION

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_______________Detailed Description

The MAX987/MAX988/MAX991/MAX992/MAX995/

MAX996 are single/dual/quad low-power, low-voltage

comparators. They have an operating supply voltage

range between +2.5V and +5.5V and consume only

48µA per comparator, while achieving 120ns propaga-

tion delay. Their common-mode input voltage range

extends 0.25V beyond each rail. Internal hysteresis

ensures clean output switching, even with slow-moving

input signals. Large internal output drivers allow rail-to-

rail output swing with up to 8mA loads.

The output stage employs a unique design that mini-

mizes supply-current surges while switching, virtually

eliminating the supply glitches typical of many other

comparators. The MAX987/MAX991/MAX995 have a

push/pull output structure that sinks as well as sources

current. The MAX988/MAX992/MAX996 have an open-

drain output stage that can be pulled beyond V

CC

to an

absolute maximum of 6V above V

EE

.

Input Stage Circuitry

The devices’ input common-mode range extends from 

-0.25V to (V

CC

+ 0.25V). These comparators may oper-

ate at any differential input voltage within these limits.

Input bias current is typically 1.0pA if the input voltage

is between the supply rails. Comparator inputs are pro-

tected from overvoltage by internal body diodes con-

nected to the supply rails. As the input voltage exceeds

the supply rails, these body diodes become forward

biased and begin to conduct. Consequently, bias cur-

rents increase exponentially as the input voltage

exceeds the supply rails.

Output Stage Circuitry

These comparators contain a unique output stage

capable of rail-to-rail operation with up to 8mA loads.

Many comparators consume orders of magnitude more

current during switching than during steady-state oper-

ation. However, with this family of comparators, the

supply-current change during an output transition is

extremely small. The 

Typical Operating Characteristics

graph Supply Current vs. Output Transition Frequency

shows the minimal supply-current increase as the out-

put switching frequency approaches 1MHz. This char-

acteristic eliminates the need for power-supply filter

capacitors to reduce glitches created by comparator

switching currents. Battery life increases substantially

in high-speed, battery-powered applications.

__________Applications Information

Additional Hysteresis

MAX987/MAX991/MAX995

The MAX987/MAX991/MAX995 have ±2.5mV internal

hysteresis. Additional hysteresis can be generated with

three resistors using positive feedback (Figure 1).

Unfortunately, this method also slows hysteresis

response time. Use the following procedure to calcu-

late resistor values for the MAX987/MAX991/MAX995.

1) Select R3. Leakage current at IN is under 10nA;

therefore, the current through R3 should be at least

1µA to minimize errors caused by leakage current.

The current through R3 at the trip point is (V

REF

-

V

OUT

) / R3. Considering the two possible output

states and solving for R3 yields two formulas: R3 =

V

REF

/ 1µA or R3 = (V

REF

- V

CC

) / 1µA. Use the

smaller of the two resulting resistor values. For

example, if V

REF

= 1.2V and V

CC

= 5V, then the two

R3 resistor values are 1.2M

and 3.8M

. Choose a

1.2M

standard value for R3.

2) Choose the hysteresis band required (V

HB

). For this

example, choose 50mV.

3) Calculate R1 according to the following equation:

R1 = R3 x (V

HB

/ V

CC

)

For this example, insert the values R1 = 1.2M

x

(50mV / 5V) = 12k

.

4) Choose the trip point for V

IN

rising (V

THR

; V

THF

is

the trip point for V

IN

falling). This is the threshold

voltage at which the comparator switches its output

from low to high as V

IN

rises above the trip point. For

this example, choose 3V.

MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

V

CC

MAX987

MAX991

MAX995

OUT

0.1

µ

F

R3

R1

R2

V

REF

V

EE

V

IN

V

CC

Figure 1.  Additional Hysteresis (MAX987/MAX991/MAX995)

8

_______________________________________________________________________________________

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MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

_______________________________________________________________________________________

9

5) Calculate R2 as shown. For this example, choose an

8.2k

standard value:

6) Verify trip voltages and hysteresis as follows:

MAX988/MAX992/MAX996

The MAX988/MAX992/MAX996 have ±2.5mV internal

hysteresis. They have open-drain outputs and require

an external pull-up resistor (Figure 2). Additional hys-

teresis can be generated using positive feedback, but

the formulas differ slightly from those of the

MAX987/MAX991/MAX995.

Use the following procedure to calculate resistor 

values:

1) Select R3 according to the formulas R3 = V

REF

/ 1µA

or R3 = (V

REF

- V

CC

) / 1µA - R4. Use the smaller of

the two resulting resistor values.

2) Choose the hysteresis band required (V

HB

). For this

example, choose 50mV.

3) Calculate R1 according to the following equation:

R1 = (R3 + R4) x (V

HB

/ V

CC

)

4) Choose the trip point for V

IN

rising (V

THR

; V

THF

is

the trip point for V

IN

falling). This is the threshold

voltage at which the comparator switches its output

from low to high as V

IN

rises above the trip point.

5) Calculate R2 as follows:

6) Verify trip voltages and hysteresis as follows:

Circuit Layout and Bypassing

These comparators’ high-gain bandwidth requires

design precautions to maximize their high-speed capa-

bility. The recommended precautions are:

1) Use a printed circuit board with an unbroken, low-

inductance ground plane.

2) Place a decoupling capacitor (a 0.1µF ceramic

capacitor is a good choice) as close to V

CC

as

possible.

3) On the inputs and outputs, keep lead lengths short

to avoid unwanted parasitic feedback around the

comparators.

4) Solder the devices directly to the printed circuit

board instead of using a socket.

V  rising:  V

  =  V

 x R1  x

                  

1

R1

V  falling

IN

THR

REF

IN

   

   

   

:  

 

   

   

   

 

 

   

+

+

+





=

+





=

1

2

1

3

4

1

3

4

R

R

R

V

V

R x V

R

R

Hysteresis

V

V

THF

THR

CC

THR

THF

R2  =  

1

V

V

THR

REF

   

   

   

   

x R

R

R

R

1

1

1

1

3

4





+

V  rising: V

  =  V

 x R1 x 

1

R1

V  falling

IN

THR

REF

IN

 

   

   

:  

 

   

   

 

 

 

   

+

+





=





=

1

2

1

3

1

3

R

R

V

V

R x V

R

Hysteresis

V

V

THF

THR

CC

THR

THF

R2  =  

1

V

V

R2  =  

1

3.0V

1.2 x 12k

THR

REF

   

   

   

   

   

.

 

  .

x R

R

R

k

M

k

1

1

1

1

3

1

12

1

2 2

8 03









=

V

EE

V

CC

OUT

R3

R2

R1

R4

0.1

µ

F

V

REF

V

IN

V

CC

MAX988

MAX992

MAX996

Figure 2.  Additional Hysteresis (MAX988/MAX992/MAX996)

background image

MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

10

______________________________________________________________________________________

Zero-Crossing Detector

Figure 3 shows a zero-crossing detector application.

The MAX987’s inverting input is connected to ground,

and its noninverting input is connected to a 100mVp-p

signal source. As the signal at the noninverting input

crosses 0V, the comparator’s output changes state.

Logic-Level Translator

Figure 4 shows an application that converts 5V logic lev-

els to 3V logic levels. The MAX988 is powered by the +5V

supply voltage, and the pull-up resistor for the MAX988’s

open-drain output is connected to the +3V supply volt-

age. This configuration allows the full 5V logic swing with-

out creating overvoltage on the 3V logic inputs. For 3V to

5V logic-level translation, simply connect the +3V supply

to V

CC

and the +5V supply to the pull-up resistor.

MAX987

IN+

4

3

OUT

1

2

5

V

CC

100mV

V

CC

V

EE

IN-

0.1

µ

F

MAX988

IN-

100k

100k

4

3

R

PULL-UP

3V (5V) 

LOGIC OUT

OUT

1

5

2

V

CC

+5V (+3V)

+3V (+5V)

V

EE

5V (3V) LOGIC IN

IN+

0.1

µ

F

Figure 3.  Zero-Crossing Detector

Figure 4.  Logic-Level Translator

_____________________________________________Pin Configurations (continued)

14

13

12

11

10

9

8

1

2

3

4

5

6

7

OUTD

IND-

IND+

V

EE

V

CC

INA+

INA-

OUTA

MAX995

MAX996

INC+

INC-

OUTC

OUTB

INB-

INB+

SO

OUT

N.C.

V

EE

1

2

8

7

N.C.

V

CC

IN-

IN+

N.C.

SO

TOP VIEW

3

4

6

5

MAX987

MAX988

INB-

INB+

V

EE

1

2

8

7

V

CC

OUTB

INA-

INA+

OUTA

SO/

µ

MAX

3

4

6

5

MAX991

MAX992

background image

MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

______________________________________________________________________________________

11

_Ordering Information (continued)

________Typical Application Circuit

MAX98_

MAX99_

IN+

0.1

µ

F

*R

PULL-UP

THRESHOLD DETECTOR

* MAX988/MAX992/MAX996 ONLY

V

IN

OUT

V

CC

V

CC

V

EE

V

REF

IN-

14 SO

14 SO

-40°C to +85°C

-40°C to +85°C

MAX996

ESD

MAX995

ESD

8 µMAX

-40°C to +85°C

MAX992EUA

8 SO

8 µMAX

8 SO

PIN-

PACKAGE

TEMP. RANGE

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

MAX992

ESA

MAX991EUA

MAX991

ESA

PART

SOT

TOP MARK

__________________________________________________Tape-and-Reel Information

4.0 ±0.1

0.30 ±0.05

0.8 ±0.05

0.30R MAX.

Bo

Ko

2.2 ±0.1

0.5 RADIUS

TYPICAL

A0

4.0 ±0.1

2.0 ±0.05

1.5 +0.1/-0.0 DIAMETER

1.75 ±0.1

1.0 ±0.1

A

8.0 ±0.3

3.5 ±0.05

1.0 MINIMUM

A

Ao = 3.1mm ±0.1

Bo = 2.7mm ±0.1

Ko = 1.2mm ±0.1

NOTE:  DIMENSIONS ARE IN MM.

AND FOLLOW EIA481-1 STANDARD.

background image

MAX987/MAX988/MAX991/MAX992/MAX995/MAX996

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

________________________________________________________Package Information

SOT5L.EPS

8LUMAXD.EPS

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

12

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© 1997 Maxim Integrated Products 

Printed USA

is a registered trademark of Maxim Integrated Products.