OPA344 Datasheet, PDF (5/30 Pages) Burr-Brown (TI) – LOW POWER, SINGLE-SUPPLY, RAIL-TO-RAIL OPERATIONAL AMPLIFIERS MicroAmplifier ™ Series

TYPICAL PERFORMANCE CURVES
At T_A = +25°C, V_S = +5V, and R_L = 10kΩ connected to V_S/2, unless otherwise noted.
120
100
80
60
40
20
0
0.1
OPEN-LOOP GAIN/PHASE vs FREQUENCY
0
OPA344
30
Phase
60
90
120
Gain
150
180
1 10 100 1k 10k 100k 1M 10M
Frequency (Hz)
120
100
80
60
40
20
0
0.1
OPEN-LOOP GAIN/PHASE vs FREQUENCY
0
OPA345
30
Phase
60
90
120
Gain
150
180
1 10 100 1k 10k 100k 1M 10M
Frequency (Hz)
POWER SUPPLY AND COMMON-MODE
REJECTION RATIO vs FREQUENCY
100
+PSRR
80
CMRR
–PSRR
60
40
20
10
10
100
1k
10k
Frequency (Hz)
100k
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
6
V_S = +5.5V
5 ^{VS = +5V}
4
OPA344
3
V_S = +2.7V
2
OPA345
1
0
10k
100k
1M
10M
Frequency (Hz)
CHANNEL SEPARATION vs FREQUENCY
140
120
100
Dual and quad devices.
G = 1, all channels.
Quad measured channel
80 A to D or B to C—other
combinations yield improved
rejection.
60
100
1k
10k
100k
1M
Frequency (Hz)
VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
10000
100
1000
V_N
100
I_N
10
1
10
1
0.1
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
OPA344, 2344, 4344
OPA345, 2345, 4345
5
SBOS107A
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