
Low-Cost, UCSP/SOT23, Micropower, High-Side
Current-Sense Amplifier with Voltage Output
ELECTRICAL CHARACTERISTICS (continued)
(VRS+ = 0 to 28V, VCC = 2.7V to 28V, VSENSE = 0V, RLOAD = 1M , TA = TMIN to TMAX, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 1)
Note 1: All devices are 100% production tested at TA = +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: VOS is extrapolated from the gain accuracy tests.
Note 6: Total OUT voltage error is the sum of gain and offset voltage errors.
Note 7: Measured at IOUT = -500A (RLOAD = 4k for gain = 20V/V, RLOAD = 10k for gain = 50V/V, RLOAD = 20k for gain =
100V/V).
Note 8: 6.25mV = 1/16 of 100mV full-scale voltage (C/16).
Note 9: The device will not reverse phase when overdriven.
VRS+ = 12V,
VCC = 12V,
CLOAD
RS+
= 10pF
MAX4372T
20
VSENSE = 20mV,
gain = 20V/V
kHz
50
BW
275
VSENSE = 20mV,
gain = 50V/V
200
VSENSE = 20mV,
gain = 100V/V
110
-3dB Bandwidth
MAX4372F
MAX4372H
V/V
100
Gain
50
No sustained oscillations
VSENSE = 100mV
1.5
ROUT
VOL
V
VCC - VOH
OL
OUT Output Resistance
pF
1000
Capacitive-Load Stability
VSENSE = 20mV
%
±5.5
Gain Accuracy
VOUT = 2V, VRS+ > 2V
VCC = 12V, VRS+ = 12V, CLOAD = 10pF
ms
0.1
Saturation Recovery Time
(Note 9)
VCC = 12V, VRS+ = 12V,
VSENSE = 100mV, CLOAD = 10pF
ms
0.5
Power-Up Time to 1% of
Final Value
dB
75
85
PSR
Power-Supply Rejection
VSENSE = 6.25mV
±0.25
±2.5
TA = +25°C
TA = -40°C to +85°C
VSENSE = 6.25mV to
100mV
20
VSENSE = 100mV to
6.25mV
Gain = 20V/V,
VCC = 12V,
VRS+ = 12V,
CLOAD = 10pF
s
20
OUT Settling Time to 1% of
Final Value
to 100mV,V
=12V
V
VRS+ = 28V, VCC = 2.7V, IOUT = -500A,
VSENSE = 250mV
CC = 2.7V,
9
65
OUT Low Voltage
(MAX4372T, MAX4372F)
mV
2.6
IOUT = 10A
IOUT = 100A
VSENSE = -10mV
VRS+
RS+
= 28V
VCC = 2.7V,
V
0.1
0.25
OUT High Voltage
9
65
OUT Low Voltage
(MAX4372H)
mV
2.6
IOUT = 10A
IOUT = 100A
VSENSE = -10mV
V
= 12V
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
Maxim Integrated
3
MAX4372T/F/H