MAX9920 Maxim, MAX9920 Datasheet - Page 6

• Manufacturer Part Number: MAX9920
• Description: The MAX9918/MAX9919/MAX9920 are single-supply, high-accuracy current-sense amplifiers with a high input common-mode range that extends from -20V to +75V
• Manufacturer: Maxim

-20V to +75V Input Range, Precision
Uni-/Bidirectional, Current-Sense Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V
90V/V, R2/R1 = 89kΩ/1kΩ; for MAX9920, A
ues are at T
6
Note 1: All devices are 100% production tested at T
Note 2: V
Note 3: Extrapolated V
Note 4: OUT should be 100mV away from either rail to achieve rated accuracy, or limited by a V
Note 5: Not production tested. Guaranteed by design.
1% Settling Time from V
Power-Up Time
Max Capacitive Load Stability
Input Referred Noise Voltage
Density
CC
_______________________________________________________________________________________
= 5V, V
MAX9918/MAX9919N/MAX9919F, and V
MAX9918/MAX9919N/MAX9919F and 200mV for the MAX9920.
PARAMETERS
OS
A
RS+
= +25°C.) (Note 1)
is extrapolated from two point gain error tests. Measurements are made at V
= V
RS-
OS
= +14V, V
CM
as described above in Note 2 is used to calculate V
Step
SENSE
SYMBOL
= (V
e
n
V
= 20V/V, R2/R1 = 79kΩ/1kΩ; T
RS+
SENSE
- V
MAX9918,
V
MAX9919F,
V
MAX9919N,
V
MAX9920,
V
MAX9918, V
MAX9919F, V
MAX9919N, V
MAX9920, V
No sustained oscillations (Note 5)
10kHz
SENSE
SENSE
SENSE
SENSE
RS-
A
= +25°C. All temperature limits are guaranteed by design.
) = 0V, V
= 20mV and 200mV for MAX9920.
= 50mV
= 50mV
= 50mV
= 200mV
SENSE
SENSE
SENSE
SENSE
SHDN
CONDITIONS
= 50mV, 1% settling
= 200mV, 1% settling
V
V
V
V
V
V
V
V
MAX9918, MAX9919_
MAX9920
= 50mV, 1% settling
= V
= 50mV, 1% settling
CM
CM
CM
CM
CM
CM
CM
CM
GND
= -2V to +14V step
= +14V to -2V step
= -2V to +14V step
= +14V to -2V step
= -2V to +14V step
= +14V to -2V step
= -2V to +14V step
= +14V to -2V step
A
= -40°C to +125°C, unless otherwise noted. Typical val-
= 0V, V
OS
drift, CMRR, and PSRR.
REFIN
SENSE
= V
CC
= 5mV and 50mV for
SENSE
MIN
/2, R
50
L
of 50mV for the
= 100kΩ; for MAX9918, A
TYP
0.25
174
2.5
0.5
2.5
0.5
3.5
3.5
2.5
4.5
60
5
6
5
MAX
nV/√Hz
UNITS
pF
μs
μs
V
=