Datasheet

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