OPA227
Features
- Low noise: 3 n V/√Hz
- Wide bandwidth:
- OPA227: 8 MHz, 2.3 V/μs
- OPA228: 33 MHz, 10 V/μs
- Settling time: 5 μs
- High CMRR: 138 d B
- High open-loop gain: 160 d B
- Low input bias current: 10 n A maximum
- Low offset voltage: 75 µV maximum
- Wide supply range: ±2.5 V to ±18 V
- Single, dual, and quad versions
2 Applications
- Data acquisition (DAQ)
- Condition monitoring sensor
- Spectrum analyzer
- Professional audio amplifier (rack mount)
- Industrial AC-DC
100k
Input-Referred Voltage Noise (n V/√Hz) Input-Referred Current Noise (f A/√Hz)
10k
1k
Current Noise
Voltage Noise
1 0.1
1k
10k
Frequency (Hz)
Input Voltage and Current Noise Spectral Density vs Frequency
3 Description
The OPAx227 and OPAx228 series operational amplifiers bine low noise and wide bandwidth with high precision to make them an excellent choice for applications requiring both ac and precision dc performance.
The OPAx227 are unity-gain stable and features high slew rate...
