Overview
The OPA627AUE4, produced by Texas Instruments, is a precision high-speed JFET operational amplifier. It is part of the OPA6x7 series, which includes the OPA627 and OPA637 models. These operational amplifiers are designed to provide superior performance in precision and high-speed analog circuitry. Compared to other op amps like the OPA111, the OPA627 offers lower noise, lower offset voltage, and higher speed. The device is fabricated on a high-speed, dielectrically-isolated, complementary NPN/PNP process and operates over a wide power-supply voltage range of ±4.5V to ±18V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC-8 | |
| Operating Temperature Range | -25 to 85 | °C |
| Input Offset Voltage (VOS) | ±100 | μV |
| Input Offset Voltage Drift (dVOS/dT) | ±0.8 | μV/°C |
| Input Bias Current (IB) | 5 | pA |
| Gain-Bandwidth Product (GBW) | 45 | MHz |
| Slew Rate | 150 | V/μs |
| Settling Time (to 0.01%) | 550 | ns |
| Noise (at 10kHz) | 4.5 | nV/√Hz |
| Power Supply Rejection Ratio (PSRR) | 100-117 | dB |
| Output Voltage (RL = 1kΩ) | ±11.5 | V |
| Short-Circuit Current | ±45 | mA |
Key Features
- Very Low Noise: 4.5nV/√Hz at 10kHz.
- Fast Settling Time: 550ns to 0.01% for the OPA627.
- Low Input Offset Voltage (VOS): 100µV maximum.
- Low Drift: 0.8µV/°C maximum.
- Low Input Bias Current (IB): 5pA maximum.
- Gain Options: Unity-gain stable for the OPA627, stable in gains ≥ 5 for the OPA637.
- Wide Power-Supply Voltage Range: ±4.5V to ±18V.
- High Accuracy and Low Noise: Achieved through laser-trimmed input circuitry.
Applications
- Precision Instrumentation: High accuracy and low noise make it suitable for precision measurement instruments.
- Fast Data Acquisition: Fast settling time and high bandwidth support fast data acquisition systems.
- DAC Output Amplifier: Ideal for driving the output of digital-to-analog converters.
- Optoelectronics: Suitable for applications involving optoelectronic devices.
- Sonar and Ultrasound: Used in high-frequency applications such as sonar and ultrasound systems.
- High-Impedance Sensor Amplifiers: Low input bias current makes it suitable for high-impedance sensors.
- High-Performance Audio Circuitry: Low noise and high accuracy make it suitable for high-performance audio applications).
- Active Filters: Can be used in active filter circuits due to its high bandwidth and low noise).
Q & A
- What is the operating temperature range of the OPA627AUE4?
The operating temperature range is -25°C to 85°C.
- What is the typical noise level of the OPA627AUE4 at 10kHz?
The noise level is 4.5nV/√Hz at 10kHz.
- What is the settling time of the OPA627AUE4 to 0.01%?
The settling time is 550ns to 0.01%.
- What is the maximum input offset voltage (VOS) of the OPA627AUE4?
The maximum input offset voltage is 100µV.
- What is the input bias current (IB) of the OPA627AUE4?
The input bias current is 5pA maximum.
- What are the gain options for the OPA627AUE4?
The OPA627 is unity-gain stable, while the OPA637 is stable in gains ≥ 5.
- What is the power-supply voltage range of the OPA627AUE4?
The power-supply voltage range is ±4.5V to ±18V.
- What are some common applications of the OPA627AUE4?
Common applications include precision instrumentation, fast data acquisition, DAC output amplifiers, optoelectronics, sonar and ultrasound, high-impedance sensor amplifiers, high-performance audio circuitry, and active filters.
- What package types are available for the OPA627AUE4?
The OPA627AUE4 is available in SOIC-8 and TO-99 packages.
- What is the gain-bandwidth product (GBW) of the OPA627AUE4?
The gain-bandwidth product is 45 MHz.
