Overview
The OPA2227UA/2K5 from Texas Instruments is a high-precision, low-noise operational amplifier. 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.
This dual-channel operational amplifier is unity-gain stable, featuring a high slew rate of 2.3 V/µs and a wide bandwidth of 8 MHz. It is designed to replace industry-standard OP27 and OP37 op amps with substantial improvements across various parameters.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bandwidth | 8 MHz | |
| Slew Rate | 2.3 V/µs | |
| Settling Time | 5 µs | |
| Common Mode Rejection Ratio (CMRR) | 138 dB | |
| Open-Loop Gain | 160 dB | |
| Input Bias Current | 10 nA (maximum) | |
| Input Offset Voltage | 75 µV (maximum) | |
| Supply Voltage Range | ±2.5 V to ±18 V | |
| Output Current per Channel | 45 mA | |
| Package Type | 8-SOIC (0.154", 3.90mm Width) | |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Low noise: 3 nV/√Hz
- Wide bandwidth: 8 MHz
- High slew rate: 2.3 V/µs
- High common mode rejection ratio (CMRR): 138 dB
- High open-loop gain: 160 dB
- Low input bias current: 10 nA maximum
- Low offset voltage: 75 µV maximum
- Wide supply voltage range: ±2.5 V to ±18 V
- Single, dual, and quad versions available
- Low quiescent current and low cost, suitable for portable applications
Applications
- Data acquisition (DAQ)
- Condition monitoring sensors
- Spectrum analyzers
- Professional audio equipment (e.g., rack mount amplifiers)
- Industrial AC-DC applications
- Portable applications requiring high precision
Q & A
- What is the bandwidth of the OPA2227UA/2K5 operational amplifier?
The bandwidth of the OPA2227UA/2K5 is 8 MHz.
- What is the slew rate of the OPA2227UA/2K5?
The slew rate of the OPA2227UA/2K5 is 2.3 V/µs.
- What is the input offset voltage of the OPA2227UA/2K5?
The input offset voltage of the OPA2227UA/2K5 is 75 µV maximum.
- What is the common mode rejection ratio (CMRR) of the OPA2227UA/2K5?
The CMRR of the OPA2227UA/2K5 is 138 dB.
- What is the supply voltage range for the OPA2227UA/2K5?
The supply voltage range for the OPA2227UA/2K5 is ±2.5 V to ±18 V.
- What are the typical applications of the OPA2227UA/2K5?
The OPA2227UA/2K5 is typically used in data acquisition, condition monitoring sensors, spectrum analyzers, professional audio equipment, and industrial AC-DC applications.
- What package types are available for the OPA2227UA/2K5?
The OPA2227UA/2K5 is available in 8-SOIC (0.154", 3.90mm Width) packages.
- What is the operating temperature range for the OPA2227UA/2K5?
The operating temperature range for the OPA2227UA/2K5 is -40°C to 85°C.
- How does the OPA2227UA/2K5 compare to industry-standard op amps like the OP27 and OP37?
The OPA2227UA/2K5 is a pin-for-pin replacement for the OP27 and OP37 with substantial improvements in various parameters.
- What is the output current per channel for the OPA2227UA/2K5?
The output current per channel for the OPA2227UA/2K5 is 45 mA).
