Analog Devices OP227
The OP227 is the first dual amplifier to offer a combination of low offset, low noise, high speed, and guaranteed amplifier matching characteristics in one device. The OP227, with a VOS match of 25 mV typical, a TCVOS match of 0.3 mV/∞C typical and a 1/f corner of only 2.7 Hz is an excellent choice for precision low noise designs. These dc characteristics, coupled with a slew rate of 2.8 V/ms typical and a small-signal bandwidth of 8 MHz typical, allow the designer to achieve ac performance previously unattainable with op amp based instrumentation designs.- Max Operating Temp : 85°C
- Min Operating Temp : -25°C
Source:
Octopart
| Part No. | OP227 |
|---|---|
| Datasheet | OP227 Download |
| Manufacturer |  Analog Devices |
| Description | Dual / Low Noise / Low Offset Instrumentation Operational Amplifier |
| Buy | Stock & Price |
FEATURES
Excellent Individual Amplifier Parameters Low VOS, 80● V Max Offset Voltage Match, 80
●V Max Offset Voltage Match vs. Temperature, 1
●V/؇ C Max Stable VOS vs. Time, 1
●V/M O Max Low Voltage Noise, 3.9 nV/÷Hz Max Fast, 2.8 V/
●s Typ High Gain, 1.8 Million Typ High Channel Separation, 154 dB Typ V+ (A) OUT (A) V– (A) +IN (B) –IN (B) NULL (B) NULL (B) A 4 11 B 5 6 7 10 9 8 NOTE 1. DEVICE MAY BE OPERATED EVEN IF INSERTION IS REVERSED; THIS IS DUE TO INHERENT SYMMETRY OF PIN LOCATIONS OF AMPLIFIERS A AND B 2. V–(A) AND V–(B) ARE INTERNALLY CONNECTED VIA SUBSTRATE RESISTANCE
GENERAL DESCRIPTION
When used in a three op amp instrumentation configuration, the OP227 can achieve a CMRR in excess of 100 dB at 10 kHz. In addition, this device has an open-loop gain of 1.5 M typical with a 1 kW load. The OP227 also features an IB of ± 10 nA typical, an IOS of 7 nA typical, and guaranteed matching of input currents between amplifiers. These outstanding input current specifications are realiz...
