1FEATURES
• Low Noise: 3 nV/√Hz
• Wide Bandwidth: 8 MHz, 2.3 V/μs
• Settling Time: 5 μs
• High CMRR: 138 dB (Typical)
• High Open-Loop Gain: 160 dB (Typical)
• Low Input Bias Current: 10 nA Maximum at
25°C
• Low Offset Voltage: 100 μV Maximum at 25°C
• Wide Supply Range: ±2.5 V to ±18 V

APPLICATIONS
• Data Acquisition
• Telecom Equipment
• Geophysical Analysis
• Vibration Analysis
• Spectral Analysis
• Professional Audio Equipment
• Active Filters
• Power Supply Control

SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
• Controlled Baseline
• One Assembly and Test Site
• One Fabrication Site
• Available in Military (–55°C to 125°C)
Temperature Range (1)
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability

DESCRIPTION
The OPA2227 operational amplifier 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 OPA2227 is unity-gain stable and features high slew rate (2.3 V/μs) and wide bandwidth (8 MHz).
The OPA2227 operational amplifier is ideal for professional audio equipment. In addition, low quiescent current
and low cost make them ideal for portable applications requiring high precision.
The OPA2227 operational amplifier is a pin-for-pin replacement for the industry standard OP-27 with substantial
improvements across the board. The dual and quad versions are available for space savings and perchannel
cost reduction.
The OPA2227 is available in an SOIC-8 package. Operation is specified from –55°C to 125°C.