LM124 STMicroelectronics, LM124 Datasheet - Page 10

• Manufacturer Part Number: LM124
• Description: Low power, low input bias current
• Manufacturer: STMicroelectronics

Specifications of LM124

• 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 Voltage: 5 mV max.
• Low Input Offset Current: 2 nA
• Single Supply: +3 V to +30 V
• Dual Supplies: ±1.5 V to ±15 V

Typical single-supply applications
10/19
Figure 25. Active bandpass filter
Figure 27. Using symmetrical amplifiers to
Fo = 1kHz
Q = 50
Av = 100 (40dB)
reduce input current (general
concept)
Doc ID 2156 Rev 7
Figure 26. High input Z, DC differential
e
As shown e
For
(CMRR depends on this resistor ratio match)
0
⎛
⎝
1
R
-------
R
1
2
+
amplifier
R
-------
R
=
4
3
⎞
⎠
R
-------
R
0
= (e
4
3
(e
2
2
- e
- e
1
1
)
)
LM124, LM224, LM324