Overview
The OPA227UA/2K5 is a high-precision, low-noise operational amplifier produced by Texas Instruments. It is part of the OPAx227 series, which combines low noise and wide bandwidth with high precision, making it an excellent choice for applications requiring both AC and precision DC performance. The OPA227UA/2K5 is unity-gain stable, featuring a high slew rate and wide bandwidth, and is suitable for professional audio equipment and portable applications requiring high precision.
Key Specifications
| Parameter | Value |
|---|---|
| Bandwidth | 8 MHz |
| Slew Rate | 2.3 V/µs |
| Input Noise | 3 nV/√Hz |
| Input Bias Current | 10 nA maximum |
| Input Offset Voltage | 75 µV maximum |
| Common Mode Rejection Ratio (CMRR) | 138 dB |
| Open-Loop Gain | 160 dB |
| Supply Voltage Range | ±2.5 V to ±18 V |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | 8-SOIC (0.154", 3.90mm Width) |
| Number of Pins | 8 |
| Supply Current | 3.7 mA |
| Output Current per Channel | 45 mA |
Key Features
- Low noise: 3 nV/√Hz
- Wide bandwidth: 8 MHz
- High slew rate: 2.3 V/µs
- High CMRR: 138 dB
- High open-loop gain: 160 dB
- Low input bias current: 10 nA maximum
- Low offset voltage: 75 µV maximum
- Wide supply range: ±2.5 V to ±18 V
- Available in single, dual, and quad versions
- Pin-for-pin replacements for industry-standard OP27 and OP37 with substantial improvements
Applications
The OPA227UA/2K5 is an excellent choice for various applications, including:
- Professional audio equipment
- Portable applications requiring high precision
- Precision DC and AC performance applications
- Space-saving designs due to availability in dual and quad versions
Q & A
- What is the bandwidth of the OPA227UA/2K5?
The bandwidth of the OPA227UA/2K5 is 8 MHz.
- What is the slew rate of the OPA227UA/2K5?
The slew rate of the OPA227UA/2K5 is 2.3 V/µs.
- What is the input noise of the OPA227UA/2K5?
The input noise of the OPA227UA/2K5 is 3 nV/√Hz.
- What is the input bias current of the OPA227UA/2K5?
The input bias current of the OPA227UA/2K5 is 10 nA maximum.
- What is the input offset voltage of the OPA227UA/2K5?
The input offset voltage of the OPA227UA/2K5 is 75 µV maximum.
- What is the common mode rejection ratio (CMRR) of the OPA227UA/2K5?
The CMRR of the OPA227UA/2K5 is 138 dB.
- What is the open-loop gain of the OPA227UA/2K5?
The open-loop gain of the OPA227UA/2K5 is 160 dB.
- What is the supply voltage range of the OPA227UA/2K5?
The supply voltage range of the OPA227UA/2K5 is ±2.5 V to ±18 V.
- What is the operating temperature range of the OPA227UA/2K5?
The operating temperature range of the OPA227UA/2K5 is -40°C to +85°C.
- In what package types is the OPA227UA/2K5 available?
The OPA227UA/2K5 is available in 8-SOIC packages.
