Datasheet

Low-Cost, UCSP/SOT23, Micropower, High-Side
Current-Sense Amplifier with Voltage Output
ELECTRICAL CHARACTERISTICS (continued)
(V
RS+
= 0 to 28V, V
CC
= 2.7V to 28V, V
SENSE
= 0V, 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: V
OS
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 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 8: 6.25mV = 1/16 of 100mV full-scale voltage (C/16).
Note 9: The device will not reverse phase when overdriven.
V
RS
+
= 12V,
V
CC
= 12V,
C
LOAD
RS+
= 10pF
MAX4372T 20
V
SENS
E
= 20mV,
gain = 20V/V
kHz
50
BW
275
V
SENSE
= 20mV,
gain = 50V/V
200
V
SENSE
= 20mV,
gain = 100V/V
110
-3dB Bandwidth
MAX4372F
MAX4372H
V/V
100
Gain 50
No sustained oscillations
V
SENSE
= 100mV Ω1.5R
OUT
V
OL
V
V
CC
- V
OH
OL
OUT Output Resistance
pF1000Capacitive-Load Stability
V
SENSE
= 20mV
%
±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 9)
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
to 100mV,V =12V
V
V
RS
+
= 28V, V
CC
= 2.7V, I
OUT
= -500µA,
V
SENSE
= 250mV
CC
= 2.7V,
9 65
OUT Low Voltage
(MAX4372T, MAX4372F)
mV
2.6I
OUT
= 10µA
I
OUT
= 100µA
V
SENSE
= -10mV
V
RS+
RS+
= 28V
V
CC
= 2.7V,
V0.1 0.25OUT High Voltage
9 65
OUT Low Voltage
(MAX4372H)
mV
2.6I
OUT
= 10µA
I
OUT
= 100µA
V
SENSE
= -10mV
V = 12V
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
Maxim Integrated
3
MAX4372T/F/H