The OPA227 and OPA228 series op amps combine low noise and wide bandwidth with high precision to make them the ideal choice for applications requiring both ac and precision dc performance. The OPA227 is unity gain stable and features high slew rate (2.3V/µs) and wide bandwidth, making it an ideal choice for a variety of applications, including but not limited to data acquisition, telecom equipment, geophysical analysis, vibration analysis, spectral analysis, professional audio equipment, active filters, and power supply control.
The OPA227 and OPA228 series operational amplifiers combine low noise and wide bandwidth with high precision, making them ideal for applications requiring both AC and precision DC performance. The OPA227 is unity gain stable with a slew rate of 2.3V/ms and a bandwidth of 8MHz, while the OPA228 is optimized for closed-loop gains of 5 or greater, offering a slew rate of 10V/ms and a bandwidth of 33MHz. These devices are pin-for-pin replacements for the industry standard OP-27 and OP-37 with substantial improvements.
| Low Noise Input Voltage Noise Density | 3nV/√Hz |
|---|---|
| Wide Bandwidth OPA227 | 8MHz |
| Wide Bandwidth OPA228 | 33MHz |
| Settling Time | 5 ms |
| High CMRR | 138dB |
| High Open-Loop Gain | 160dB |
| Low Input Bias Current | 10nA max |
| Low Offset Voltage | 75 mV max |
| Wide Supply Range | –2.5V to –18V |
| Operating Temperature Range | –40 °C to +85°C |
They are ideal for data acquisition, telecom equipment, geophysical analysis, vibration analysis, spectral analysis, professional audio equipment, active filters, and power supply control.
The OPA227 is a replacement for the OP-27, LT1007, and MAX427.
The OPA228 is a replacement for the OP-37, LT1037, and MAX437.
The OPA227, OPA228, OPA2227, and OPA2228 are available in DIP-8 and SO-8 packages, while the OPA4227 and OPA4228 are available in DIP-14 and SO-14 packages.