Datasheet

76V, High-Side, Current-Sense Amplifiers with
Voltage Output
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= V
RS+
= 4.5V to 76V, V
REF1A
= V
REF1B
= 5V (MAX4081 only), V
SENSE
= (V
RS+
- V
RS-
) = 0V, R
LOAD
= 100kΩ, T
A
= T
MIN
to
T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 1, 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
I
OUT
(sinking) = 10µA 4 15
OUT Low Voltage V
OL
V
CC
= V
RS+
= 48V,
V
REF1A
= V
REF1B
=
2.5V, V
SENSE
=
-1000mV (for
MAX4081 only)
I
OUT
(sinking) =
100µA
23 55
mV
REF1A = REF1B Input Voltage
Range (MAX4081 Only)
(V
REF
-
V
GND
)
Inferred from REF1A rejection ratio,
V
REF1A
= V
REF1B
1.5 6 V
REF1A Input Voltage Range
(MAX4081 Only)
(V
REF1A
-
V
GND
)
Inferred from REF1A rejection ratio,
V
REF1B
= V
GND
312V
REF1A Rejection Ratio
(MAX4081 Only)
V
CC
= V
RS+
= 48V, V
SENSE
= 0V,
V
REF1A
= V
REF1B
= 1.5V to 6V
80 108 dB
REF/REF1A Ratio
(MAX4081 Only)
V
REF1A
= 10V, V
REF1B
= V
GND
,
V
CC
= V
RS+
= 48V (Note 2)
0.497 0.500 0.503
REF1A Input Impedance
(MAX4081 Only)
V
REF1B
= V
GND
250 kΩ
MAX4080/MAX4081
Maxim Integrated
3