Datasheet
Table Of Contents
- 1 Absolute Maximum Ratings
- 2 Typical Application Information
- 3 Electrical Characteristics
- Table 2. VCC+ = 5V, Vcc- = Ground, Vo = 1.4V, Tamb = 25 C (unless otherwise specified)
- Figure 3. Input bias current vs. Tamb
- Figure 4. Input voltage range
- Figure 5. Current limiting
- Figure 6. Supply current
- Figure 7. Gain bandwidth product
- Figure 8. Voltage follower pulse response
- Figure 9. Common mode rejection ratio
- Figure 10. Output characteristics
- Figure 11. Open loop frequency response
- Figure 12. Voltage follower pulse response
- Figure 13. Large signal frequency response
- Figure 14. Output characteristics
- Figure 15. Positive supply voltage
- Figure 16. Positive supply voltage
- Figure 17. Power supply & common mode rejection ratio
- Figure 18. Large signal voltage gain
- 4 Typical Single-Supply Applications
- Figure 19. AC coupled inverting amplifier
- Figure 20. AC coupled non-inverting amplifier
- Figure 21. Non-inverting DC gain
- Figure 22. DC summing amplifier
- Figure 23. Active bandpass filter
- Figure 24. High input Z adjustable gain DC instrumentation amplifier
- Figure 25. High input Z, DC differential amplifier
- Figure 26. Low drift peak detector
- Figure 27. Using symmetrical amplifiers to reduce input current (general concept)
- 5 Package Mechanical Data
- 6 Revision History
Typical Single-Supply Applications LM2902
10/14
Figure 25. High input Z, DC differential amplifier Figure 26. Low drift peak detector
Figure 27. Using symmetrical amplifiers to reduce
input current (general concept)
1/4
LM2902
R1
100k
Ω
R2
100k
Ω
R4
100k
Ω
R3
100k
Ω
+V2
+V1
V
o
1/4
LM2902
eo = [ 1 + ] (e2 - e1)
As shown eo = (e2 - e1)
R4
R3
I
B
2N 929
0.001
µ
F
I
B
3R
3M
Ω
I
B
Input current
compensation
e
o
I
B
e
I
1/4
LM2902
Z
o
Z
I
C
1
µ
F
2I
B
R
1M
Ω
2I
B
* Polycarbonate or polyethylene
*
1/4
LM2902
1/4
LM2902
1/4
LM2902
I
B
2N 929
0.001
µ
F
I
B
3M
Ω
I
B
e
o
I
I
e
I
I
B
I
B
Aux. amplifier for input
current compensation
1.5M
Ω
1/4
LM2902