TYPICAL CHARACTERISTIC CURVES
At TA = +25°C and RL = 10kΩ, unless otherwise noted.
POWER-SUPPLY AND COMMON-MODE REJECTION
vs FREQUENCY
OPEN-LOOP GAIN/PHASE vs FREQUENCY
120
110
100
90
80
70
60
50
40
30
20
10
0
140
VS = +2.7V
+PSR
0
120
100
80
CL = 100pF
VS = +5V
–30
–60
–90
–120
–150
–180
±15V
CMR
φ
60
40
VS = +2.7V, +5V
or ±15V
S = +2.7V or +5V
VO = 0.25V
VS
20
G
VO
=
V
V
0
2
S = ±15V
–PSR
–20
10
100
1k
10k
100k
1M
0.1
1
10
100
1k
10k
100k
1M
Frequency (Hz)
Frequency (Hz)
INPUT NOISE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
CHANNEL SEPARATION vs FREQUENCY
RL = 10kΩ
1k
100
10
160
140
120
100
80
Current Noise
Dual and quad devices.
G = 1, all channels.
Quad measured channel
A to D or B to C—other
combinations yield improved
rejection.
Voltage Noise
1
10
100
1k
10k
100k
10
100
1k
10k
100k
Frequency (Hz)
Frequency (Hz)
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
INPUT BIAS AND INPUT OFFSET CURRENT
vs TEMPERATURE
–17
–16
–15
–14
–13
–12
–11
–10
–20
–15
–10
–5
VS = +2.7V, +5V
VS = +5V
IB
VS = ±15V
VS = +2.7V
VS = ±15V
IOS
0
+5
–15
–10
–5
0
5
10
15
–75
–50
–25
0
25
50
75
100
125
Common-Mode Voltage (V)
Ambient Temperature (°C)
OPA234, OPA2234, OPA4234
6
SBOS055B
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