Datasheet

4
®
INA121
TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, V
S
= ±15V, unless otherwise noted.
NEGATIVE POWER SUPPLY REJECTION
vs FREQUENCY
Frequency (Hz)
Power Supply Rejection (dB)
10 100 10k 100k 1M1k
120
100
80
60
40
20
0
G = 1000V/V
G = 1V/V
G = 10V/V
G = 100V/V
INPUT COMMON-MODE RANGE
vs OUTPUT VOLTAGE, V
S
= ±15V
Output Voltage (V)
Common-Mode Voltage (V)
–15 –10 0 5 15–5
15
10
5
0
–5
–10
–15
10
V
D/2
+
–
+
–
+
V
CM
V
O
V
D/2
Ref
–15V
+15V
G = 1
G ≥ 10
POSITIVE POWER SUPPLY REJECTION
vs FREQUENCY
Frequency (Hz)
Power Supply Rejection (dB)
10 100 10k 100k 1M1k
120
100
80
60
40
20
0
G = 1000V/V
G = 1V/V
G = 10V/V
G = 100V/V
COMMON-MODE REJECTION
vs FREQUENCY
Frequency (Hz)
Common-Mode Rejection (dB)
10 100 10k 100k 1M1k
120
100
80
60
40
20
0
G = 1000V/V
G = 1V/V
G = 10V/V
G = 100V/V
INPUT COMMON-MODE RANGE
vs OUTPUT VOLTAGE, V
S
= ±5V, ±2.5V
Output Voltage (V)
Common-Mode Voltage (V)
–5
5
4
3
2
1
0
–1
–2
–3
–4
–5
–4 –3 –2 –1 0 1 2 3 4 5
V
S
= ±5V
V
S
= ±2.5V
G = 1
G ≥ 10
G = 1
G ≥ 10
GAIN vs FREQUENCY
Frequency (Hz)
Gain (dB)
1k 10k 1M 10M100k
60
50
40
30
20
10
0
–10
–20
G = 1000V/V
G = 100V/V
G = 10V/V
G = 1V/V