Overview
The OPA227UA/2K5G4, part of the OPAx227 series from Texas Instruments, is a high-precision, low-noise operational amplifier. These op amps combine low noise and wide bandwidth with high precision, making them an excellent choice for applications requiring both AC and precision DC performance. The OPA227 is unity-gain stable, featuring a high slew rate of 2.3 V/µs and a wide bandwidth of 8 MHz. This series is particularly suited for professional audio equipment and portable applications due to its low quiescent current and cost-effectiveness. The OPA227 series also serves as a pin-for-pin replacement for industry-standard OP27 and OP37 op amps, offering substantial improvements across various parameters.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Input Offset Voltage | ±75 | µV |
| Input Bias Current | 10 | nA |
| Common Mode Rejection Ratio (CMRR) | 138 | dB |
| Open-Loop Gain | 160 | dB |
| Slew Rate | 2.3 | V/µs |
| Bandwidth | 8 | MHz |
| Settling Time | 5 | µs |
| Supply Range | ±2.5 V to ±18 V | V |
| Operating Temperature Range | -40 to 85 | °C |
| Package Type | SOIC (D), PDIP (P) | |
| Pins | 8 |
Key Features
- Low noise: 3 nV/√Hz
- Wide bandwidth: 8 MHz, with a slew rate of 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
- Single, dual, and quad versions available
- Pin-for-pin replacement for industry-standard OP27 and OP37
Applications
- Data Acquisition (DAQ)
- Telecom Equipment
- Geophysical Analysis
- Vibration Analysis
- Spectral Analysis
- Professional Audio Equipment
- Active Filters
- Power Supply Controls
Q & A
- What is the input offset voltage of the OPA227UA/2K5G4?
The input offset voltage is ±75 µV.
- What is the slew rate of the OPA227UA/2K5G4?
The slew rate is 2.3 V/µs.
- What is the bandwidth of the OPA227UA/2K5G4?
The bandwidth is 8 MHz.
- What is the common mode rejection ratio (CMRR) of the OPA227UA/2K5G4?
The CMRR is 138 dB.
- What is the operating temperature range of the OPA227UA/2K5G4?
The operating temperature range is -40°C to 85°C.
- What are the available package types for the OPA227UA/2K5G4?
The available package types are SOIC (D) and PDIP (P).
- Can the OPA227UA/2K5G4 be used in professional audio equipment?
Yes, the OPA227UA/2K5G4 is an excellent choice for professional audio equipment due to its low noise and high precision.
- Is the OPA227UA/2K5G4 a pin-for-pin replacement for any other op amps?
Yes, it is a pin-for-pin replacement for the industry-standard OP27 and OP37 op amps.
- What are some common applications of the OPA227UA/2K5G4?
Common applications include data acquisition, telecom equipment, geophysical analysis, vibration analysis, spectral analysis, and power supply controls.
- What is the settling time of the OPA227UA/2K5G4?
The settling time is 5 µs.
