Datasheet

OPA343, 2343, 4343
4
SBOS090A
TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, V
S
= +5V, and R
L
= 10kΩ connected to V
S
/2, unless otherwise noted.
CLOSED-LOOP OUTPUT IMPEDANCE
vs FREQUENCY
5k
4k
3k
2k
1k
0
Output Resistance (Ω)
Frequency (Hz)
10 100 1k 10k 100k 1M 10M
G = 100
G = 10
G = 1
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
10k
1k
100
10
1
1k
100
10
1
0.1
Voltage Noise (nV√Hz)
Frequency (Hz)
1 10 100 1k 10k 100k 1M
Current Noise (fA√Hz)
Current Noise
Voltage Noise
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
0.1
0.01
0.001
0.0001
THD+N (%)
Frequency (Hz)
20 100 1k 10k 20k
R
L
= 600
G = 10
G = 1
R
L
= 2k
R
L
= 2k
R
L
= 10k
R
L
= 600
R
L
= 10k
OPEN-LOOP GAIN/PHASE vs FREQUENCY
0.1 1
160
140
120
100
80
60
40
20
0
–20
Voltage Gain (dB)
0
–45
–90
–135
–180
Phase (°)
Frequency (Hz)
10 100 1k 10k 100k 1M 10M
POWER-SUPPLY and COMMON-MODE
REJECTION vs FREQUENCY
100
80
60
40
20
0
PSRR, CMRR (dB)
Frequency (Hz)
1 10 100 1k 10k 100k 1M
PSRR
CMRR
V
CM
= –0.3V to (V+) –1.8V
CHANNEL SEPARATION vs FREQUENCY
Frequency (Hz)
Channel Separation (dB)
140
130
120
110
100
10010 1k 10k 100k
Dual and quad devices.
G = 1, all channels.
Quad measured channel A to D
or B to C—other combinations
yield improved rejection.