OPA111 Datasheet, PDF (11/14 Pages) Burr-Brown (TI) – Low Noise Precision Difet OPERATIONAL AMPLIFIER

10.5kΩ ^0.03µF
0.01µF
Input
73.2kΩ
365Ω ₂
6 ^{365Ω 1µF Output}
OPA111
3
0.01µF
100kΩ
R_T
C_T
G = 26dB
Midband
FIGURE 14. RIAA Equalized Phono Preamplifier.
<1pF to prevent peaking
200MΩ
Pin Diode*
2
6
3 ^OPA111
20kΩ
*Silicon Detector Corp.
SD-041-11-21-011
0.1µF
Overload ≈ 0.1µW input
+5VDC
3
7
LM211
2
1
10kΩ
TTL
Output
Digital Common
FIGURE 15. High Sensitivity (under 1nW) Fiber Optic
Receiver for 9600 Baud Manchester Data.
Input
100Ω
100Ω
100Ω
100Ω
100Ω
10kΩ
2
6
OPA111
3
10kΩ
2
6
OPA111
3
10kΩ
2
6
OPA111
3
10kΩ
2
6
3 ^OPA111
10kΩ
2
6
OPA111
3
10kΩ
10kΩ
10kΩ
10kΩ
10kΩ
A_V = –1010
e_N = 1.9nV/√Hz typ* at 10kHz
BW = 30kHz typ
GBW = 30.3MHz typ
V_OS = ±16µV typ*
∆V_OS/∆T = ±0.16µV/°C typ*
I_B = 10pA max
Z_IN ≈ 10¹²â„¦ || 30pF
* Theoretical performance achievable
from OPA111BM with uncorrelated
random distribution of parameters.
10kΩ
2
6
OPA37
3
Output
N = 10 OPA111BM
FIGURE 16. ‘N’ Stage Parallel-Input Amplifier for Reduced Relative Amplifier Noise at the Output.
®
11
OPA111