Electrical characteristics (continued) – Rainbow Electronics MAX9920 User Manual
Page 4
MAX9918/MAX9919/MAX9920
-20V to +75V Input Range, Precision
Uni-/Bidirectional, Current-Sense Amplifiers
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V, V
RS+
= V
RS-
= +14V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, V
SHDN
= V
GND
= 0V, V
REFIN
= V
CC
/2, R
L
= 100kΩ; for MAX9918, A
V
=
90V/V, R2/R1 = 89kΩ/1kΩ; for MAX9920, A
V
= 20V/V, R2/R1 = 79kΩ/1kΩ; T
A
= -40°C to +125°C, unless otherwise noted. Typical val-
ues are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
T
A
= +25°C,
V
REFIN
= 0V
±0.08
±0.6
V
RS+
= V
RS-
=
+14V
T
A
= -40°C to
+125°C,
V
REFIN
= 0V
±1.2
T
A
= +25°C
±0.02
±0.6
MAX9918
V
RS+
= V
RS-
=
-2V, V
REFIN
=
0V
T
A
= -40°C to
+125°C
±1.0
T
A
= +25°C
±0.13
±0.45
V
RS+
= V
RS-
=
+14V, V
REFIN
=
0V
T
A
= -40°C to
+125°C
±1.2
T
A
= +25°C
±0.10
±0.45
MAX9919F
V
RS+
= V
RS-
=
-2V, V
REFIN
=
0V
T
A
= -40°C to
+125°C
±0.9
T
A
= +25°C
±0.16
±0.6
V
RS+
= V
RS-
=
+14V, V
REFIN
=
0V
T
A
= -40°C to
+125°C
±1.2
T
A
= +25°C
±0.11
±0.6
MAX9919N
V
RS+
= V
RS-
=
-2V, V
REFIN
=
0V
T
A
= -40°C to
+125°C
±1.0
T
A
= +25°C
±0.29
±1.0
V
RS+
= V
RS-
=
+14V, V
REFIN
=
0V
T
A
= -40°C to
+125°C
±1.7
T
A
= +25°C
±0.24
±1.0
Gain Error
(Note 2)
GE
MAX9920
V
RS+
= V
RS-
=
-2V, V
REFIN
=
0V
T
A
= -40°C to
+125°C
±1.7
%
FB Input Bias Current
I
FB
MAX9918, MAX9920
5
15
nA
R
L
= 100k
Ω to GND
3
10
Output-Voltage High (Note 4)
V
CC
- V
OH
V
SENSE
= 200mV for
MAX9918, MAX9919_,
V
SENSE
= 400mV for
MAX9920
R
L
= 10k
Ω to GND
12
40
mV
R
L
= 100k
Ω to V
CC
3
10
Output-Voltage Low (Note 4)
V
OL
V
SENSE
= -200mV for
MAX9918, MAX9919_,
V
SENSE
= -400mV for
MAX9920
R
L
= 10k
Ω to V
CC
10
40
mV
OUT shorted to V
CC
44
Short-Circuit Current
I
SC
OUT shorted to GND
41
mA
Output Resistance
R
OUT
0.1
Ω
M AX 9918, M AX9919_
0
V
CC
/2
V
CC
-
1.9
REFIN Voltage Range
Inferred from REFIN
CMRR test
MAX9920
0
V
CC
/2
V
CC
-
2.4
V