MAX4081 Maxim, MAX4081 Datasheet - Page 4

• Manufacturer Part Number: MAX4081
• Description: The MAX4080/MAX4081 are high-side, current-sense amplifiers with an input voltage range that extends from 4
• Manufacturer: Maxim

76V, High-Side, Current-Sense Amplifiers with
Voltage Output
AC ELECTRICAL CHARACTERISTICS
(V
T
4
Note 1: All devices are 100% production tested at T
Note 2: V
Note 3: The common-mode range at the low end of 4.5V applies to the most positive potential at RS+ or RS-. Depending on the
Note 4: Negative V
Note 5: V
Note 6: V
Note 7: V
Note 8: Output voltage is internally clamped not to exceed 18V.
Note 9: Output settles to within 1% of final value.
Note 10: The device will not experience phase reversal when overdriven.
Bandwidth
OUT Settling Time to 1% of Final
Value
Capacitive-Load Stability
Output Resistance
Power-Up Time
Saturation Recovery Time
A
CC
= T
_______________________________________________________________________________________
= V
MIN
V
polarity of V
V
MAX4080F, 10mV to 1000mV
MAX4080T, 10mV to 250mV
MAX4080S, 10mV to 100mV
MAX4081F, -500mV to +500mV
MAX4081T, -125mV to +125mV
MAX4081S, -50mV to +50mV
RS+
MAX4081.
MAX4080F, 500mV
MAX4080T, 125mV
MAX4080S, 50mV
MAX4081F/T/S, 0V
V
REF
SENSE
SENSE
SENSE
OS
SENSE
to T
PARAMETER
REF1B
= 4.5V to 76V, V
is extrapolated from the gain accuracy test for the MAX4080 and measured as (V
MAX
is defined as the average voltage of V
.
is defined as V
is:
is:
= V
, unless otherwise noted. Typical values are at T
SENSE
SENSE
REF1A
applies to MAX4081 only.
and the device’s gain, either RS+ or RS- can extend below 4.5V by the device’s typical full-scale value of
= 2.5V
REF1A
RS+
- V
= V
SYMBOL
RS-
R
REF1B
BW
OUT
.
= 5V (MAX4081 only), V
V
48V, V
V
V
No sustained oscillations
V
V
(Notes 9,10)
CC
SENSE
SENSE
SENSE
C C
REF1A
A
= V
= V
= +25°C. All temperature limits are guaranteed by design.
OUT
RS +
= 10mV to 100mV
= 100mV to 10mV
= 100mV
RS+
and V
= 2.5V
= 48V , V
=
REF1B
CONDITION
A
= +25°C.) (Notes 1, 2)
S E NS E
MAX4080F/T/S
MAX4081F/T/S
. REF1B is usually connected to REF1A or GND.
SENSE
= 100mV ( Note 9)
= (V
RS+
- V
RS-
) = 0V, R
OUT
MIN
- V
LOAD
REF
)/A
TYP
250
150
500
0.1
20
20
50
50
= 100kΩ, C
V
at V
SENSE
MAX
LOAD
= 0V, for the
UNITS
= 20pF,
kHz
pF
µs
µs
µs
Ω