Maxim MAX933CSA, MAX933CPA, MAX932ESA, MAX932EPA, MAX932CUA Datasheet

...

_______________General Description

The MAX931-MAX934 single, dual, and quad micropower, low-voltage comparators plus an on-board 2% accurate reference feature the lowest power consumption available. These comparators draw less than 4µA supply current over temperature (MAX931), and include an internal

1.182V ±2% voltage reference, programmable hysteresis, and TTL/CMOS outputs that sink and source current.

Ideal for 3V or 5V single-supply applications, the MAX931-MAX934 operate from a single +2.5V to +11V supply (or a ±1.25V to ±5V dual supply), and each comparator’s input voltage range extends from the negative supply rail to within 1.3V of the positive supply.

The MAX931-MAX934’s unique output stage continuously sources as much as 40mA. And by eliminating powersupply glitches that commonly occur when comparators change logic states, the MAX931-MAX934 minimize parasitic feedback, which makes them easier to use.

The single MAX931 and dual MAX932/MAX933 provide a unique and simple method for adding hysteresis without feedback and complicated equations, using the HYST pin and two resistors.

For applications that require increased precision with similar power requirements, see the MAX921-MAX924 data sheet. These devices include a 1% precision reference.

________________________Applications

Battery-Powered Systems Threshold Detectors Window Comparators Oscillator Circuits Alarm Circuits

____________________________Features

♦ Ultra-Low 4µA Max Quiescent Current

Over Extended Temp. Range (MAX931)

♦ Power Supplies:

Single +2.5V to +11V Dual ±1.25V to ±5.5V

♦ Input Voltage Range Includes Negative Supply ♦ Internal 1.182V ±2% Bandgap Reference ♦ Adjustable Hysteresis ♦ TTL-/CMOS-Compatible Outputs ♦ 12µs Propagation Delay (10mV Overdrive) ♦ No Switching Crowbar Current ♦ 40mA Continuous Source Current ♦ Available in Space-Saving µMAX Package

MAX931-MAX934

Ultra Low-Power, Low-Cost

Comparators with 2% Reference

________________________________________________________________

Maxim Integrated Products

MAX931

OUT

V-

GND

V+

3

4

5

THRESHOLD DETECTOR

IN+

IN-

HYST

REF

__________Typical Operating Circuit

19-0194; Rev 1; 2/97

8 SO-40°C to +85°CMAX931ESA

8 µMAX0°C to +70°CMAX931CUA

8 SO0°C to +70°CMAX931CSA

8 Plastic DIP0°C to +70°C

MAX931CPA

PIN-PACKAGETEMP. RANGEPART

16-Pin DIP/SO

No4YesMAX934

8-Pin DIP/SO/ µMAX

Yes2YesMAX933

8-Pin DIP/SO/ µMAX

Yes2YesMAX932

8-Pin DIP/SO/ µMAX

Yes1YesMAX931

PACK-

AGE

INTERNAL

HYSTERESIS

COMPARATORS

PER

PACKAGE

INTERNAL

REFERENCE

PART

Ordering Information continued on last page.

For similar devices guaranteed over the military temp. range, see the MAX921-MAX924 data sheet. The MAX931, MAX933, and MAX934 are pin-compatible with the 1% accurate MAX921, MAX923, and MAX924, respectively. The MAX932 and MAX922 are not

pin-compatible.

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

8 Plastic DIP-40°C to +85°CMAX931EPA

______________Ordering Information

MAX931-MAX934

Ultra Low-Power, Low-Cost Comparators with 2% Reference

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

V+ to V-, V+ to GND, GND to V-................................-0.3V, +12V

Inputs

Current, IN_+, IN_-, HYST...............................................20mA

Voltage, IN_+, IN_-, HYST................(V+ + 0.3V) to (V- – 0.3V)

Outputs

Current, REF....................................................................20mA

Current, OUT_.................................................................50mA

Voltage, REF ....................................(V+ + 0.3V) to (V- – 0.3V)

Voltage, OUT_ (MAX931/934).....(V+ + 0.3V) to (GND – 0.3V)

Voltage, OUT_ (MAX932/933)..........(V+ + 0.3V) to (V- – 0.3V)

OUT_ Short-Circuit Duration (V+ ≤ 5.5V) ...............Continuous

Continuous Power Dissipation (TA= +70°C)

8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ...727mW

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

8-Pin µMAX (derate 4.1mW/°C above +70°C).............330mW

16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)..842mW

16-Pin SO (derate 8.70mW/°C above +70°C)................696mW

Operating Temperature Ranges:

MAX93_C_ _ .......................................................0°C to +70°C

MAX93_E_ _.....................................................-40°C to +85°C

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

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

ELECTRICAL CHARACTERISTICS—5V Operation

(V+ = 5V, V- = GND = 0V, TA= T

MIN

to T

MAX

, unless otherwise noted.)

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.

PARAMETER

MAX933, HYST = REF

MIN TYP MAX UNITS

MAX934

VV- V+ – 1.3

MAX931, HYST = REF

5.5 6.5

Supply Current IN+ = IN- + 100mV µA

Supply Voltage Range

TA= +25°C, 100pF load

2.5 11 V

MAX932, HYST = REF

2.5 3.2

Input Offset Voltage

CONDITIONS

±10 mV

TA= +25°C

nAInput Leakage Current (IN-, IN+)

(Note 1)

±0.01 ±5

Input Leakage Current (HYST)

TA= +25°C

±0.02 nA

Input Common-Mode Voltage Range

VCM= 2.5V

Common-Mode Rejection Ratio

IN+ = IN- = 2.5V, C/E temp. ranges MAX931, MAX932, MAX933

0.1 1.0 mV/V

Power-Supply Rejection Ratio

V- to (V+ – 1.3V) V+ = 2.5V to 11V 100Hz to 100kHz

0.1 1.0 mV/V

Voltage Noise

MAX931, MAX932, MAX933

Overdrive = 10mV Overdrive = 100mV

20 µV

RMS

Hysteresis Input Voltage Range REF – 0.05 REF V

TA= +25°C

µsResponse Time

TA= +25°C

3.1 4.5

C/E temp. ranges 4

C/E temp. ranges 6

C/E temp. ranges 8.5

POWER REQUIREMENTS

COMPARATOR

MAX931-MAX934

Ultra Low-Power, Low-Cost

Comparators with 2% Reference

_______________________________________________________________________________________ 3

PARAMETER

Voltage Noise

C/E temp. ranges, I

OUT

= 17mA

MIN TYP MAX UNITS

100Hz to 100kHz 100 µV

RMS

CONDITIONS

VOutput High Voltage V+ – 0.4

V- + 0.4

15 25

µASource Current

GND + 0.4

Output Low Voltage

µA

815

Sink Current

1.158 1.182 1.206 VReference Voltage

ELECTRICAL CHARACTERISTICS—5V Operation (continued)

(V+ = 5V, V- = GND = 0V, TA= T

MIN

to T

MAX

, unless otherwise noted.)

ELECTRICAL CHARACTERISTICS—3V Operation

(V+ = 3V, V- = GND = 0V, TA= T

MIN

to T

MAX

, unless otherwise noted.)

PARAMETER

MAX933,

HYST = REF

MIN TYP MAX UNITS

MAX934

MAX931,

HYST = REF

5.2 6.2

Supply Current IN+ = (IN- + 100mV)

IN+ = IN- = 1.5V, C/E temp. ranges

µA

MAX932,

HYST = REF

2.4 3.0

Input Offset Voltage

CONDITIONS

±10 mV

TA= +25°C

±0.01 ±1 nAInput Leakage Current (IN-, IN+)

Input Leakage Current (HYST)

TA= +25°C

±0.02 nA

VCM= 1.5V

MAX931, MAX932, MAX933

TA= +25°C

3.4 4.3

Note 1: MAX934 comparators work below 2.5V, see

Low-Voltage Operation

section for more details.

C temp. range

E temp. range 1.147 1.217 TA= +25°C C/E temp. ranges 6

TA= +25°C C/E temp. ranges 4

C/E temp. ranges 3.8

C/E temp. ranges 5.8

5.8

C/E temp. ranges

8.0

C/E temp. ranges, I

OUT

= 1.8mA

MAX932,

MAX933

MAX931,

MAX934

POWER REQUIREMENTS

COMPARATOR

REFERENCE

MAX931-MAX934

Ultra Low-Power, Low-Cost Comparators with 2% Reference

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—3V Operation (continued)

(V+ = 3V, V- = GND = 0V, TA= T

MIN

to T

MAX

, unless otherwise noted.)

PARAMETER

Voltage Noise

C/E temp. ranges, I

OUT

= 10mA

MIN TYP MAX UNITS

100Hz to 100kHz 100 µV

RMS

Input Common-Mode Voltage Range VV- V+ – 1.3

C/E temp. ranges, I

OUT

= 0.8mA

TA= +25°C, 100pF load

MAX931

CONDITIONS

Common-Mode Rejection Ratio 0.2 1 mV/V Power-Supply Rejection Ratio

V- to (V+ – 1.3V) V+ = 2.5V to 11V 100Hz to 100kHz

0.1 1 mV/V

Voltage Noise

MAX931, MAX932, MAX933

Overdrive = 10mV Overdrive = 100mV

20 µV

RMS

Hysteresis Input Voltage Range REF – 0.05 REF V

µsResponse Time

VOutput High Voltage V+ – 0.4

V- + 0.4

15 25

µASource Current

TA= +25°C

GND + 0.4

Output Low Voltage

815

µASink Current

1.158 1.182 1.206 V

TA= +25°C

Reference Voltage

C temp. range E temp. range 1.147 1.217

C/E temp. ranges

MAX932,

MAX933

REFERENCE

MAX931-MAX934

Ultra Low-Power, Low-Cost

Comparators with 2% Reference

_______________________________________________________________________________________

1.22

1.14

-60 -20 60 140

REFERENCE VOLTAGE 

vs. TEMPERATURE

1.16

1.20

MAX921/924-TOC4

TEMPERATURE (°C)

REFERENCE VOLTAGE (V)

20 100

1.18

1.21

1.15

1.19

1.17

-40 0 8040 120

EXTENDED TEMP. RANGE

COMMERCIAL 

TEMP. RANGE

2.0

-60 140

MAX931

SUPPLY CURRENT vs. TEMPERATURE

2.5

4.5

MAX921/924-TOC5

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

3.5

3.0

-20 20 100

4.0

V+ = 5V, V- = -5V

V+ = 3V, V- = 0V

V+ = 5V, V- = 0V

IN+ = IN- + 100mV

5.0

2.0

-60 140

MAX932 

SUPPLY CURRENT vs. TEMPERATURE

2.5

4.5

MAX921/924-TOC6

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

3.5

3.0

-20 20 100

4.0 V+ = 5V, V- = 0V

V+ = 3V, V- = 0V

IN+ = IN- +100mV

4.5

5.0

-60 140

MAX933

SUPPLY CURRENT vs. TEMPERATURE

2.0

4.0

MAX921/924-TOC7

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

3.0

2.5

-20 20 100

3.5

V+ = 5V, V- = 0V

V+ = 3V, V- = 0V

IN+ = IN- +100mV

-60 140

MAX934 

SUPPLY CURRENT vs. TEMPERATURE

MAX921/924-TOC8

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

-20 20 100

IN+ = (IN- + 100mV)

V+ = 5V, V- = 0V

V+ = 3V, V- = 0V

V+ = 5V, V- = -5V

0.01

1.0 2.0 2.5

MAX934

SUPPLY CURRENT vs. 

LOW SUPPLY VOLTAGES

0.1

MAX921/924-TOC9

SINGLE-SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

1.5

IN+ = IN- +100mV

__________________________________________Typical Operating Characteristics

(V+ = 5V, V- = GND, TA = +25°C, unless otherwise noted.)

0.0 020

OUTPUT VOLTAGE LOW

vs. LOAD CURRENT

0.5

2.5

MAX921/4-TOC1

LOAD CURRENT (mA)

(V)

1.5

1.0

48 16

2.0

V+ = 5V

V+ = 3V

1.5 010 30 50

OUTPUT VOLTAGE HIGH vs.

LOAD CURRENT

2.5

4.5

MAX921/924-TOC2

LOAD CURRENT (mA)

(V)

20 40

3.5

5.0

2.0

4.0

3.0

V+ = 5V

V+ = 3V

1.155 0 5 15 25

REFERENCE OUTPUT VOLTAGE vs.

OUTPUT LOAD CURRENT

1.165

1.185

MAX921/924-TOC3

OUTPUT LOAD CURRENT (µA)

REFERENCE OUTPUT VOLTAGE (V)

10 20

1.175

1.190

1.160

1.180

1.170

V+ = 5V 

OR

V+ = 3V

SINK

SOURCE

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Maxim MAX933CSA, MAX933CPA, MAX932ESA, MAX932EPA, MAX932CUA Datasheet

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