MAX921 datasheet(3/16 Pages) MAXIM

3 / 16 page

Ultra Low-Power,

Single/Dual-Supply Comparators

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PARAMETER

Voltage Noise

C/E temp. ranges: IOUT = 17mA;

M temp. range: IOUT = 10mA

MIN

TYP

MAX

UNITS

100Hz to 100kHz

100

µVRMS

MAX922/

MAX923

C/E temp. ranges: IOUT = 1.8mA;

M temp. range: IOUT = 1.2mA

C/E temp. ranges: IOUT = 1.8mA;

M temp. range: IOUT = 1.2mA

CONDITIONS

C temp. range

Output High Voltage

E temp. range

MAX92_

M temp. range

V+ – 0.4

TA = +25°C

V- + 0.4

µA

C/E temp. ranges

Source Current

M temp. range

TA = +25°C

GND + 0.4

Output Low Voltage

815

MAX921/

MAX924

µA

C/E temp. ranges

Sink Current

1.170

1.182

1.194

M temp. range

1.158

1.206

Reference Voltage

1.147

1.217

ELECTRICAL CHARACTERISTICS: 5V OPERATION (continued)

(V+ = 5V, V- = GND = 0V, TA = TMIN to TMAX, unless otherwise noted.)

ELECTRICAL CHARACTERISTICS: 3V OPERATION

(V+ = 3V, V- = GND = 0V, TA = TMIN to TMAX, unless otherwise noted.)

PARAMETER

MAX923

MIN

TYP

MAX

UNITS

MAX924

7.2

5.2

6.2

MAX921

8.0

Supply Current

HYST = REF,

IN+ = (IN- + 100mV)

IN+ = IN- = 1.5V

10.5

µA

2.4

3.0

MAX922

3.8

4.8

2.4

3.0

Input Offset Voltage

CONDITIONS

M temp. range

±10

TA = +25°C

C/E temp. ranges

M temp. range

±0.01

±5

Input Leakage Current (IN-, IN+)

±40

Input Leakage Current (HYST)

TA = +25°C

C/E temp. ranges

M temp. range

±0.02

TA = +25°C

VCM = 1.5V

C/E temp. ranges

M temp. range

MAX921, MAX923

C/E temp. ranges

M temp. range

TA = +25°C

C/E temp. ranges

3.8

4.8

3.4

4.3

5.8

REFERENCE (MAX921/MAX923/MAX924 ONLY)

POWER REQUIREMENTS

COMPARATOR

Note 1: MAX924 comparators work below 2.5V, see

Low-Voltage Operation section for more details.

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