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MAX921CSA-TG077

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
MAX921–MAX924
Ultra Low-Power,
Single/Dual-Supply Comparators
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V+ = 5V, V- = GND, T
A
= +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
OL
(V)
12
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
OH
(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
30
SINK
SOURCE
ELECTRICAL CHARACTERISTICS: 3V OPERATION (continued)
(V+ = 3V, V- = GND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
Voltage Noise
C/E temp. ranges: I
OUT
= 10mA;
M temp. range: I
OUT
= 6mA
MIN TYP MAX UNITS
100Hz to 100kHz 100 µV
RMS
Input Common-Mode Voltage Range VV- V+ – 1.3
MAX922/
MAX923
T
A
= +25°C, 100pF load
C/E temp. ranges: I
OUT
= 0.8mA;
M temp. range: I
OUT
= 0.6mA
C/E temp. ranges: I
OUT
= 0.8mA;
M temp. range: I
OUT
= 0.6mA
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
MAX921, MAX923
Overdrive = 10mV
Overdrive = 100mV
20 µV
RMS
Hysteresis Input Voltage Range REF- 0.05V REF V
14
µsResponse Time
5
C temp. range
VOutput High Voltage
E temp. range
MAX92_
M temp. range
V+ – 0.4
T
A
= +25°C
V- + 0.4
V
15 25
µA
C/E temp. ranges 6
Source Current
M temp. range 4
T
A
= +25°C
GND + 0.4
Output Low Voltage
815
MAX921/
MAX924
µA
C/E temp. ranges 4
Sink Current
1.170 1.182 1.194
V
M temp. range
1.158 1.206Reference Voltage
2
1.147 1.217
REFERENCE
MAX921-MAX924
Ultra Low-Power,
Single/Dual-Supply Comparators
_______________________________________________________________________________________ 5
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
MILITARY TEMP. RANGE
EXTENDED TEMP. RANGE
COMMERCIAL
TEMP. RANGE
2.0
-60 140
MAX921
SUPPLY CURRENT vs.
TEMPERATURE
2.5
4.5
MAX921/924-TOC5
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
60
3.5
3.0
-20 20 100
4.0
V+ = 5V, V- = - 5V
V+ = 3V, V- = 0V
V+ = 5V, V- = 0V
IN+ = (IN- + 100mV)
4.5
1.5
-60 140
MAX922
SUPPLY CURRENT vs. TEMPERATURE
2.0
4.0
MAX921/924-TOC6
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
60
3.0
2.5
-20 20 100
3.5
IN+ = (IN- + 100mV)
V+ = 5V, V- = 0V
V+ = 3V, V- = 0V
V+ = 10V, V- = 0V
4.5
5.0
-60 140
MAX923
SUPPLY CURRENT vs. TEMPERATURE
2.0
4.0
MAX921/924-TOC7
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
60
3.0
2.5
-20 20 100
3.5
V+ = 5V, V- = 0V
V+ = 3V, V- = 0V
80
-80
010 30 50
HYSTERESIS CONTROL
-40
40
MAX921/924 TOC10
V
REF
-V
HYST
(mV)
IN+ – IN- (mV)
20 40
0
60
-60
20
-20
NO CHANGE
OUTPUT LOW
OUTPUT HIGH
10
3
-60 140
MAX924
SUPPLY CURRENT vs. TEMPERATURE
4
8
MAX921/924-TOC8
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
60
6
5
-20 20 100
7
9
IN+ = (IN- + 100mV)
V+ = 5V, V- = 0V
V+ = 3V, V- = 0V
V+ = 5V, V- = -5V
10
0.01
1.0 2.0 2.5
MAX924
SUPPLY CURRENT vs.
LOW SUPPLY VOLTAGES
0.1
1
MAX921/924-TOC9
SINGLE-SUPPLY VOLTAGE (V)
SUPPLY CURRENT (μA)
1.5
5.0
0
-0.3 -0.1 0.3
TRANSFER FUNCTION
1.0
4.0
MAX921/924-TOC11
IN+ INPUT VOLTAGE (mV)
OUTPUT VOLTAGE (V)
0.1
3.0
2.0
4.5
0.5
3.5
2.5
1.5
-0.2 0
0.2
100k
V
0
10μF
18
2
0 20 60 100
RESPONSE TIME vs.
LOAD CAPACITANCE
6
14
MAX921/924 TOC12
LOAD CAPACITANCE (nF)
RESPONSE TIME (μs)
40 80
10
16
4
12
8
V
OLH
V- = 0V
V
OHL
Typical Operating Characteristics (continued)
(V+ = 5V, V- = GND, T
A
= +25°C, unless otherwise noted).
MAX921–MAX924
Ultra Low-Power,
Single/Dual-Supply Comparators
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V+ = 5V, V- = GND, T
A
= +25°C, unless otherwise noted).
-2 2 10 18
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
0
4
MAX921/924-TOC13
RESPONSE TIME (μs)
OUTPUT VOLTAGE (V)
614
2
0
5
100
3
1
50mV
100mV
20mV
10mV
INPUT VOLTAGE (mV)
-2 2 10 18
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES
0
4
MAX921/924-TOC14
RESPONSE TIME (μs)
OUTPUT VOLTAGE (V)
614
2
0
5
100
3
1
50mV
100mV
20mV
10mV
INPUT VOLTAGE (mV)
100
0.1
1.0 2.0 2.5
MAX924 RESPONSE TIME
AT LOW SUPPLY VOLTAGES
1
10
MAX921/924-TOC16
SINGLE-SUPPLY VOLTAGE (V)
CURRENT (mA)
1.5
SINK CURRENT AT V
OUT
= 0.4V
SOURCE CURRENT INTO 0.75V LOAD
200
0
0 1.0 3.0 5.0
SHORT-CIRCUIT SOURCE CURRENT
vs. SUPPLY VOLTAGE
40
160
MAX121/124-TOC17
TOTAL SUPPLY VOLTAGE (V)
SOURCE CURRENT (mA)
2.0 4.0
120
80
20
60
180
140
100
OUT CONNECTED TO V-
PIN
MAX921 MAX922 MAX923
NAME FUNCTION
1 – – GND Ground. Connect to V- for single-supply operation. Output swings from V+ to GND.
– 1 OUTA Comparator A output. Sinks and sources current. Swings from V+ to V-.
2 2 2 V- Negative supply. Connect to ground for single-supply operation (MAX921).
1
3 – – IN+ Noninverting comparator input
– 3 3 INA+ Noninverting input of comparator A
4 – – IN- Inverting comparator input
____________________________________________________________Pin Descriptions
– 4 – INA- Inverting input of comparator A
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

MAX921CSA-TG077

Mfr. #:
Buy MAX921CSA-TG077
Manufacturer:
Maxim Integrated
Description:
Analog Comparators Single Comparator w/1% Precision Ref
Lifecycle:
New from this manufacturer.
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