76V, High-Side, Current-Sense Amplifiers with
Voltage Output
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = VRS+ = 4.5V to 76V, VREF1A = VREF1B = 5V (MAX4081 only), VSENSE = (VRS+ - VRS-) = 0V, RLOAD = 100k, TA = TMIN to
TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
IOUT (sinking) = 10A
4
15
OUT Low Voltage
VOL
VCC = VRS+ = 48V,
VREF1A = VREF1B =
2.5V, VSENSE =
-1000mV (for
MAX4081 only)
IOUT (sinking) =
100A
23
55
mV
REF1A = REF1B Input Voltage
Range (MAX4081 Only)
(VREF -
VGND)
Inferred from REF1A rejection ratio,
VREF1A = VREF1B
1.5
6
V
REF1A Input Voltage Range
(MAX4081 Only)
(VREF1A -
VGND)
Inferred from REF1A rejection ratio,
VREF1B = VGND
312
V
REF1A Rejection Ratio
(MAX4081 Only)
VCC = VRS+ = 48V, VSENSE = 0V,
VREF1A = VREF1B = 1.5V to 6V
80
108
dB
REF/REF1A Ratio
(MAX4081 Only)
VREF1A = 10V, VREF1B = VGND,
VCC = VRS+ = 48V (Note 2)
0.497
0.500
0.503
REF1A Input Impedance
(MAX4081 Only)
VREF1B = VGND
250
k
MAX4080/MAX4081
Maxim Integrated
3