(VCC = 5V, VRS+ = VRS- = +14V, VSENSE = (VRS+ - VRS-) = 0V, VSHDN = VGND = 0V, VREFIN = VCC/2, RL = 100kΩ; for MAX9918,

AV = 90V/V, R2/R1 = 89kΩ/1kΩ; for MAX9920, AV = 20V/V, R2/R1 = 79kΩ/1kΩ; TA = -40°C to +125°C, unless otherwise noted. Typical

values are at TA = +25°C.) (Note 1)

Electrical Characteristics (continued)

PARAMETERS

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

REFIN Common-Mode Rejection

Ratio

REFINCMRR

MAX9918, MAX9919_ 0V ≤ VREFIN ≤ (VCC

- 1.9V)

82

103

dB

MAX9920

0V ≤ VREFIN ≤ (VCC

- 2.4V)

75

90

REFIN Current

IREFIN

MAX9918, MAX9919_, VRS+ = VRS- = ±50mV

±100

µA

MAX9920, VRS+ = VRS- = ±200mV

±100

SHDN Logic-High

VIH

2.0

V

SHDN Logic-Low

VIL

0.8

V

SHDN Logic Input Current

0 ≤ VSHDN ≤ VCC

5

µA

Supply Voltage Range

VCC

Inferred from PSRR test

4.5

5.5

V

Power-Supply Rejection Ratio

(Note 3)

PSRR

MAX9918, MAX9919_ 4.5V ≤ VCC ≤ 5.5V

74

103

dB

MAX9920

4.5V ≤ VCC ≤ 5.5V

68

100

Supply Current

ICC

VRS+ = VRS- = +14V

TA = +25°C

0.7

1.2

mA

TA = -40°C to +125°C

1.5

VRS+ = VRS- = -2V

TA = +25°C

1.0

1.6

TA = -40°C to +125°C

2.2

Shutdown Supply Current

ICC_SHDN VSHDN = VCC = 5V

0.5

10

µA

Small Signal -3dB Bandwidth

BW

MAX9918, VSENSE = 50mV

75

kHz

MAX9919F, VSENSE = 50mV

250

MAX9919N, VSENSE = 50mV

120

MAX9920, VSENSE = 200mV

230

Slew Rate

SR

MAX9918

0.6

V/µs

MAX9919F

0.9

MAX9919N

3.0

MAX9920

1.5

1% Settling Time from VSENSE

Step

MAX9918

VSENSE = 5mV to 50mV step

12

µs

VSENSE = 50mV to 5mV step

7

MAX9919F

VSENSE = 5mV to 50mV step

3.5

VSENSE = 50mV to 5mV step

2.5

MAX9919N

VSENSE = 5mV to 50mV step

3.5

VSENSE = 50mV to 5mV step

3

MAX9920

VSENSE = 20mV to 200mV step

5

VSENSE = 200mV to 20mV step

3

www.maximintegrated.com

Maxim Integrated │ 6

MAX9918/MAX9919/MAX9920

-20V to +75V Input Range,

Precision Uni-/Bidirectional,

Current-Sense Amplifiers