MAX4372T/F/H
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)
PARAMETER
OUT Low Voltage
(MAX4372T, MAX4372F)
OUT Low Voltage
(MAX4372H)
OUT High Voltage
SYMBOL
V
OL
CONDITIONS
V
CC
= 2.7V,
V
SENSE
= -10mV,
V
RS+
= 28V
V
CC
= 2.7V,
V
SENSE
= -10mV,
V
RS+
= 12V
I
OUT
= 10μA
I
OUT
= 100μA
I
OUT
= 10μA
I
OUT
= 100μA
MIN
TYP
2.6
9
2.6
9
0.1
275
200
110
50
20
50
100
T
A
= +25°C
T
A
= -40°C to +85°C
V
SENSE
= 6.25mV to
100mV
V
SENSE
= 100mV to
6.25mV
20
µs
20
1000
1.5
75
85
0.5
0.1
pF
Ω
dB
ms
ms
±0.25
±2.5
±5.5
%
V/V
65
0.25
65
MAX
UNITS
mV
V
OL
mV
V
CC
- V
OH
V
CC
= 2.7V, I
OUT
= -500μA,
V
SENSE
= 250mV, V
RS+
= 28V
V
SENSE
= 20mV,
gain = 20V/V
V
-3dB Bandwidth
BW
V
RS+
= 12V,
V
CC
= 12V,
C
LOAD
= 10pF
V
SENSE
= 20mV,
gain = 50V/V
V
SENSE
= 20mV,
gain = 100V/V
V
SENSE
= 6.25mV
kHz
MAX4372T
Gain
MAX4372F
MAX4372H
Gain Accuracy
V
SENSE
= 20mV
to 100mV, V
RS+
= 12V
Gain = 20V/V,
V
CC
= 12V,
V
RS+
= 12V,
C
LOAD
= 10pF
R
OUT
PSR
V
SENSE
= 100mV
V
OUT
= 2V, V
RS+
> 2V
V
CC
= 12V, V
RS+
= 12V,
V
SENSE
= 100mV, C
LOAD
= 10pF
V
CC
= 12V, V
RS+
= 12V, C
LOAD
= 10pF
OUT Settling Time to 1% of
Final Value
Capacitive-Load Stability
OUT Output Resistance
Power-Supply Rejection
Power-Up Time to 1% of
Final Value
Saturation Recovery Time
(Note 9)
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
No sustained oscillations
All devices are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Guaranteed by PSR test.
Guaranteed by OUT voltage error test.
Output voltage is internally clamped not to exceed 12V.
V
OS
is extrapolated from the gain accuracy tests.
Total OUT voltage error is the sum of gain and offset voltage errors.
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).
6.25mV = 1/16 of 100mV full-scale voltage (C/16).
The device does not reverse phase when overdriven.
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