Product Summary

The OPA227UA is an Operational Amplifier. It combines low noise and wide bandwidth with high precision to make it the ideal choice for applications requiring both ac and precision dc performance. The OPA227UA is unity-gain stable and features high slew rate (2.3V/μs) and wide bandwidth (8MHz). The OPA227UA op amp is ideal for professional audio equipment. In addition, low quiescent current and low cost make it ideal for portable applications requiring high precision. The op amp is pin-for-pin replacements for the industry standard OP-27 and OP-37 with substantial improvements across the board. The dual and quad versions are available for space savings and perchannel cost reduction. The OPA227UA is available in DIP-8 and SO-8 packages. The device is available in DIP-14 and SO-14 packages with standard pin configurations.

Parametrics

OPA227UA absolute maximum ratings: (1)Supply Voltage:±18V; (2)Signal Input Terminals, Voltage:(V-) –0.7V to (V+) +0.7V, Current:20mA; (3)Output Short-Circuit: Continuous; (4)Operating Temperature:–55℃ to +125℃; (5)Storage Temperature:–65℃ to +150℃; (6)Junction Temperature:150℃; (7)Lead Temperature (soldering, 10s):300℃.

Features

OPA227UA features: (1)low noise: 3nV/√Hz; (2)wide bandwidth: OPA227: 8MHz, 2.3V/μs; OPA228: 33MHz, 10V/μs; (3)settling time: 5μs(significant improvement over OP-27); (4)high cmrr: 138dB; (5)high open-loop gain: 160dB; (6)low input bias current: 10nA max; (7)low offset voltage: 75μV max; (8)wide supply range: ±2.5V to ±18V; (9)OPA227 replaces OP-27, LT1007, MAX427; (10)OPA228 replaces OP-37, LT1037, MAX437; (11)single, dual, and quad versions.

Diagrams

OPA227UA Pin Configuration

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
OPA227UA
OPA227UA
Texas Instruments
Operational Amplifiers - Op Amps High Prec Low Noise Oper Amplifier
Data Sheet
0-1: $1.83
1-25: $1.67
25-100: $1.34
100-250: $1.16
OPA227UA/2K5
OPA227UA/2K5
Texas Instruments
Operational Amplifiers - Op Amps High Prec Low Noise Oper Amplifier
Data Sheet
0-1: $1.57
1-25: $1.29
25-100: $1.16
100-250: $1.07
OPA227UAG4
OPA227UAG4
Texas Instruments
Operational Amplifiers - Op Amps High Prec Low Noise Oper Amplifier
Data Sheet
0-1: $1.86
1-25: $1.52
25-100: $1.34
100-250: $1.27
OPA227UA/2K5G4
OPA227UA/2K5G4
Texas Instruments
Operational Amplifiers - Op Amps High Prec Low Noise Oper Amplifier
Data Sheet
0-1850: $0.85
1850-2000: $0.82
2000-2500: $0.82
2500-5000: $0.79