CONTENTS.
- INTRODUCTION.
- Specs.
- Fig a. Series feedback: THD versus level, various loads.
INTRODUCTION.
The OP270 from Analog Devices is a dual, intended as a "very low noise precision operational amplifier". It has bipolar inputs.
SPECS.
Here are the vital statistics:
All typical values, for +/-15V supply rails.
| Supply voltage | +/-18V abs max
|
| Output range | +/-13.5V typ (2K load)
|
| CM range | +/-12.5V
|
| en | 3.2 nV/rtHz typ 1 kHz
|
| in | 0.6 pA/rtHz typ
|
| Ibias | 5 nA typ
|
| Slew rate: | 2.4 V/us
|
| Unity gain stable | YES
|
| Supply current | 4.5 mA total
|
| Cost | 742p RS Jan 2001
|
This opamp is expensive.
| THD plot not available at present.
|
