Rainbow Electronics MAX9920 - Manual (Page 5)

MAX9918/MAX9919/MAX9920
-20V to +75V Input Range, Precision
Uni-/Bidirectional, Current-Sense Amplifiers
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ELECTRICAL CHARACTERISTICS (continued)
(V CC = 5V, V RS+ = V RS- = +14V, V SENSE = (V RS+ - V RS- ) = 0V, V SHDN = V GND = 0V, V REFIN = V CC /2, R L = 100kΩ; for MAX9918, A V =
90V/V, R2/R1 = 89kΩ/1kΩ; for MAX9920, A V = 20V/V, R2/R1 = 79kΩ/1kΩ; T A = -40°C to +125°C, unless otherwise noted. Typical val-
ues are at T A = +25°C.) (Note 1)
PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX9918, MAX9919_
0V ≤ V
REFIN
≤ (V
CC
- 1.9V)
82 103
REFIN Common-Mode Rejection
Ratio
RE FIN C M R R
MAX9920
0V ≤ V
REFIN
≤ (V
CC
- 2.4V)
75 90
dB
M AX 9918, M AX 9919_, V RS + = V RS - = ± 50m V ±100
REFIN Current I REFIN
MAX9920, V RS+ = V RS- = ±200mV ±100
μA
SHDN Logic-High V IH 2.0 V
SHDN Logic-Low V IL 0.8 V
SHDN Logic Input Current 0 ≤ V
SHDN
≤ V
CC 5 μA
Supply Voltage Range V CC Inferred from PSRR test 4.5 5.5 V
MAX9918, MAX9919_ 4.5V ≤ V
CC
≤ 5.5V 74 103 Power-Supply Rejection Ratio
(Note 3)
PSRR
MAX9920 4.5V ≤ V
CC
≤ 5.5V 68 100
dB
T A = +25°C 0.7 1.2
V RS+ = V RS- = +14V
T A = - 40°C to + 125°C 1.5
T A = +25°C 1.0 1.6
Supply Current I CC
V RS+ = V RS- = -2V
T A = - 40°C to + 125°C 2.2
mA
Shutdown Supply Current I CC_SHDN V SHDN = V CC = 5V 0.5 10 μA
MAX9918, V SENSE = 50mV 75
MAX9919F, V SENSE = 50mV 250
MAX9919N, V SENSE = 50mV 120
Small Signal -3dB Bandwidth BW
MAX9920, V SENSE = 200mV 230
kHz
MAX9918 0.6
MAX9919F 0.9
MAX9919N 3.0
Slew Rate SR
MAX9920 1.5
V/μs
V SENSE = 5mV to 50mV step 12
MAX9918
V
SENSE
= 50mV to 5mV step 7
V SENSE = 5mV to 50mV step 3.5
MAX9919F
V SENSE = 50mV to 5mV step 2.5
V SENSE = 5mV to 50mV step 3.5
MAX9919N
V SENSE = 50mV to 5mV step 3
V S E N S E = 20m V to 200m V step 5
1% Settling Time from V
SENSE
Step
MAX9920
V S E N S E = 200m V to 20m V step 3
μs