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OPA2111 Datasheet, PDF (12/15 Pages) Burr-Brown (TI) – Dual Low Noise Precision Difet OPERATIONAL AMPLIFIER | |||
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Input
100â¦
100â¦
100â¦
100â¦
100â¦
10kâ¦
2
1
1/2OPA2111
3
10kâ¦
6
7
1/2OPA2111
5
10kâ¦
2
1
1/2OPA2111
3
10kâ¦
6
7
1/2OPA2111
5
10kâ¦
2
1
1/2OPA2111
3
10kâ¦
10kâ¦
10kâ¦
10kâ¦
10kâ¦
Since signal voltage sums directly with N
but amplifier noise voltage sums as N,
signal-to-noise ratio improves by N.
AV = â1010
en = 1.9nV/ Hz typ(1) at 10kHz
BW = 30kHz typ
GBW = 30.3 MHz typ
VOS = ±16µV typ(1)
âVOS/âT = ±0.16µV/°C typ(1)
IB = 40pA max
ZIN = 1012⦠|| 30pF
NOTE: (1) Theoretical performance
achievable from OPA2111BM
with uncorrelated random
distribution of parameters.
10kâ¦
2
6
OPA37
3
Output
1/2OPA2111
N = 10
5 each OPA2111BM
FIGURE 12. âNâ Stage Parallel-Input Amplifier.
®
OPA2111
12
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