OPA2111 Datasheet, PDF (10/13 Pages) Burr-Brown (TI) – Dual Low Noise Precision Difet OPERATIONAL AMPLIFIER

<1pF to prevent gain peaking
Pin Photodiode
UDT Pin-040A
1000MΩ
+15V
Guard
0.1µF
2
81
1/2 OPA2111
3
4 ^0.1µF
Output
5 x 10⁸V/W
0.01µF
1000MΩ
–15V
Circuit must be well shielded.
FIGURE 6. Sensitive Photodiode Amplifier.
100Ω
10kΩ
5.34MΩ⁽¹⁾ 5.34MΩ⁽¹⁾
1/2 OPA2111BM
2
1
3
Out
In
1/2 OPA2111BM
1000pF
5
2kΩ
7
Q
6
2.67MΩ⁽¹⁾
500pF
500pF
NOTE: (1) For 50Hz use 3.16MΩ and 6.37Ω.
Gain = 101
FIGURE 7. High Impedance 60Hz Reject Filter with Gain.
10.5kΩ ^0.03µF
0.01µF
365Ω
L
Input
R_T
73.2Ω
Right
2
1
1/2 OPA2111
3
C_T
365kΩ ^1µF
Output
0.01µF
100kΩ
10.5kΩ ^0.03µF
0.01µF
365Ω
R
Input
R_T
73.2Ω
Left
6
7
1/2 OPA2111
5
365Ω ^1µF
C_T
0.01µF
G = 26dB Midband
Output
100kΩ
FIGURE 8. RIAA Equalized Stereo Preamplifier.
®
OPA2111
10