LM2902W STMicroelectronics, LM2902W Datasheet - Page 10

• Manufacturer Part Number: LM2902W
• Description: Low power quad operational amplifier
• Manufacturer: STMicroelectronics

Specifications of LM2902W

• Wide Gain Bandwidth: 1.3 MHz
• Large Voltage Gain: 100 dB
• Very Low Supply Current Per Amplifier: 375 μA
• Low Input Bias Current: 20 nA
• Low Input Offset Current: 2 nA
• Esd Internal Protection: 800 V
• Single Supply: +3 V to +30 V
• Dual Supplies: ±1.5 V to ±15 V

Typical single-supply applications
10/17
Figure 24. High input Z, DC differential
Figure 26. Using symmetrical amplifiers to
+V1
+V2
eo = [ 1 +
As shown eo = (e2 - e1)
1.5 MΩ
e
100 kΩ
I
I
I
R1
B
B
R4
R3
I
I
amplifier
] (e2 - e1)
reduce input current (general
concept)
2N 929
I
LM2902
B
100 kΩ
1/4
LM2902
R2
3 MΩ
1/4
I
I
B
0.001 μF
B
100 kΩ
LM2902
1/4
R3
Aux. amplifier for input
current compensation
e
o
LM2902
100 kΩ
1/4
R4
Doc ID 9922 Rev 8
V
o
Figure 25. Low drift peak detector
* Polycarbonate or polyethylene
e
I
Z
I
LM2902
1/4
I
B
1 μF
1 MΩ
R
2I
B
*
C
2N 929
2I
I
B
B
LM2902
3 MΩ
1/4
3R
I
I
B
0.001 μF
B
LM2902
Z
1/4
o
Input current
compensation
LM2902W
e
o