Overview
The OPA2227PA is a high-precision, low-noise operational amplifier produced by Texas Instruments. It is designed to offer excellent performance in both AC and DC applications, making it an ideal choice for various high-precision requirements. The OPA2227PA is unity-gain stable, features a high slew rate of 2.3 V/μs, and has a wide bandwidth of 8 MHz. This operational amplifier is particularly suited for applications that demand low noise and high precision, such as professional audio equipment, data acquisition, and telecom equipment.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VOS) | ±75 µV | ±5 µV | ±200 µV | µV |
| Input Offset Voltage Drift (dVOS/dT) | ±0.1 µV/°C | ±0.1 µV/°C | ±2 µV/°C | µV/°C |
| Input Bias Current (IB) | 10 nA | 2.5 nA | 10 nA | nA |
| Common-Mode Rejection Ratio (CMRR) | 138 dB | 120 dB | 138 dB | dB |
| Open-Loop Gain (AOL) | 160 dB | 132 dB | 160 dB | dB |
| Slew Rate | 2.3 V/μs | V/μs | ||
| Bandwidth | 8 MHz | MHz | ||
| Settling Time | 5 μs | μs | ||
| Supply Voltage Range | ±2.5 V to ±18 V | V | ||
| Operating Temperature Range | –55°C to 125°C | °C |
Key Features
- Low noise: 3 nV/√Hz, making it suitable for high-precision applications.
- Wide bandwidth: 8 MHz and high slew rate: 2.3 V/μs for excellent AC performance.
- High common-mode rejection ratio (CMRR): 138 dB and high open-loop gain: 160 dB for precise DC performance.
- Low input bias current: 10 nA maximum and low offset voltage: 75 µV maximum for minimal signal distortion.
- Wide supply range: ±2.5 V to ±18 V, allowing flexibility in power supply configurations.
- Extended product life cycle and controlled baseline for reliability.
- Available in dual and quad versions for space savings and cost reduction.
- Pin-for-pin replacement for industry standard OP-27 with substantial improvements.
Applications
- Data acquisition (DAQ) systems.
- Telecom equipment.
- Geophysical and vibration analysis.
- Spectral analysis and professional audio equipment.
- Active filters and power supply control.
- Condition monitoring sensors and industrial AC-DC applications.
Q & A
- What is the typical input offset voltage of the OPA2227PA?
The typical input offset voltage is ±75 µV.
- What is the bandwidth of the OPA2227PA?
The bandwidth is 8 MHz.
- What is the slew rate of the OPA2227PA?
The slew rate is 2.3 V/μs.
- What is the common-mode rejection ratio (CMRR) of the OPA2227PA?
The CMRR is 138 dB.
- What is the operating temperature range of the OPA2227PA?
The operating temperature range is –55°C to 125°C.
- What is the supply voltage range for the OPA2227PA?
The supply voltage range is ±2.5 V to ±18 V.
- Is the OPA2227PA suitable for professional audio equipment?
Yes, it is highly suitable due to its low noise and high precision.
- What are the package options for the OPA2227PA?
It is available in DIP-8 and SOIC-8 packages.
- Does the OPA2227PA have input protection?
Yes, it features back-to-back diodes for input protection.
- Is the OPA2227PA a pin-for-pin replacement for any industry standard op-amp?
Yes, it is a pin-for-pin replacement for the industry standard OP-27 with substantial improvements.
