Datasheet
MAX4372T/F/H
Low-Cost, SOT23, Micropower, High-Side
Current-Sense Amplifier with Voltage Output
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
RS+
= 0 to +28V, V
CC
= +2.7V to +28V, V
SENSE
= 0, R
LOAD
= 1MΩ, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
at T
A
= +25°C.) (Note 1)
Note 1: All devices are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Note 2: Guaranteed by PSR test.
Note 3: Guaranteed by OUT Voltage Error test.
Note 4: Output voltage is internally clamped not to exceed 12V.
Note 5: Total OUT voltage error is the sum of gain and offset voltage errors.
Note 6: Measured at I
OUT
= -500µA (R
LOAD
= 4kΩ for gain = +20V/V, R
LOAD
= 10kΩ for gain = +50V/V, R
LOAD
= 20kΩ for gain =
+100V/V).
Note 7: +6.25mV = 1/16 of +100mV full-scale voltage (C/16).
Note 8: The device will not reverse phase when overdriven.
V
RS
+
= 12V,
V
CC
= 12V,
C
LOAD
= 10pF
CONDITIONS
MAX4372T 20
V
SENS
E
= 100mV,
gain = +20V/V
kHz
50
BW
275
UNITSMIN TYP MAXSYMBOLPARAMETER
V
SENSE
= 100mV,
gain = +50V/V
200
V
SENSE
= 100mV,
gain = +100V/V
110
-3dB Bandwidth
MAX4372F
MAX4372H
V/V
100
Gain 50
No sustained oscillations
V
SENSE
= 100mV Ω1.5R
OUT
OUT Output Resistance
pF1000Capacitive Load Stability
V
SENSE
= 20mV
to 100mV
%
±5.5
Gain Accuracy
V
OUT
= 2V, V
RS+
> 2V
V
CC
= 12V, V
RS+
= 12V, C
LOAD
= 10pF ms0.1
Saturation Recovery Time
(Note 8)
V
CC
= 12V, V
RS+
= 12V,
V
SENSE
= 100mV, C
LOAD
= 10pF
ms0.5
Power-Up Time to 1% of
Final Value
dB75 85PSRPower-Supply Rejection
V
SENSE
= 6.25mV
±0.25 ±2.5T
A
= +25°C
T
A
= -40°C to +85°C
V
SENSE
= 6.25mV to
100mV
20
V
SENSE
= 100mV to
6.25mV
Gain = +20V/V,
V
CC
= 12V,
V
RS+
= 12V,
C
LOAD
= 10pF
µs
20
OUT Settling Time to 1% of
Final Value