LMP7721
Features
- 1 Unless Otherwise Noted, Typical Values at TA = 25°C, VS = 5 V.
- Input Bias Current (VCM = 1 V)
- Maximum at 25°C ±20 f A
- Maximum at 85°C ±900 f A
- Offset Voltage ±26 µV
- Offset Voltage Drift
- 1.5 μV/°C
- DC Open-Loop Gain 120 d B
- DC CMRR 100 d B
- Input Voltage Noise (at f = 1 k Hz) 6.5 n V/√Hz
- THD 0.0007%
- Supply Current 1.3 m A
- GBW 17 MHz
- Slew Rate (Falling Edge) 12.76 V/μs
- Supply Voltage 1.8 V to 5.5 V
- Operating Temperature Range
- 40°C to 125°C
- 8-Pin SOIC
2 Applications
- Photodiode Amplifier
- High Impedance Sensor Amplifier
- Ion Chamber Amplifier
- Electrometer Amplifier
- p H Electrode Amplifier
- Transimpedance Amplifier
Ultra-Low Input Bias Current
INPUT BIAS (f A)
-5
-10
-15
V+ = 5V V- = 0V
TA = 25°C -20
0 0.5 1 1.5 2 2.5 3 3.5
VCM (V)
3 Description
The LMP7721 is the industry’s lowest specified input bias current precision amplifier. The ultra-low input bias current is 3 f A, with a specified limit of ±20 f A at 25°C and ±900 f A at 85°C....
