Datasheet

11
®
OPA111
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
≈ 10
12
Ω || 30pF
* Theoretical performance achievable
from OPA111BM with uncorrelated
random distribution of parameters.
FIGURE 16. ‘N’ Stage Parallel-Input Amplifier for Reduced Relative Amplifier Noise at the Output.
FIGURE 14. RIAA Equalized Phono Preamplifier.
FIGURE 15. High Sensitivity (under 1nW) Fiber Optic
Receiver for 9600 Baud Manchester Data.
OPA111
2
3
6
<1pF to prevent peaking
200MΩ
Pin Diode*
LM211
3
7
20kΩ
0.1µF
1
10kΩ
TTL
Output
+5VDC
Digital Common
Overload ≈ 0.1µW input
2
*Silicon Detector Corp.
SD-041-11-21-011
10kΩ
10kΩ
6
2
3
100Ω
6
2
3
10kΩ
6
2
3
10kΩ
6
2
3
6
2
3
OPA111
OPA111
OPA111
OPA111
OPA111
6
2
3
OPA37
Output
N = 10 OPA111BM
Input
10kΩ100Ω
10kΩ100Ω
10kΩ100Ω
10kΩ100Ω
10kΩ
10kΩ 10kΩ
OPA111
2
3
Output
0.03µF
R
T
C
T
10.5kΩ
0.01µF
73.2kΩ
1µF
365Ω
0.01µF
6
100kΩ
Input
365Ω
G = 26dB
Midband