Overview
The OPA627BP, produced by Texas Instruments, is a precision high-speed FET operational amplifier. It is part of the OPA6x7 series, which includes the OPA627 and OPA637 models. These operational amplifiers are fabricated on a high-speed, dielectrically-isolated, complementary NPN/PNP process, offering superior performance in precision and high-speed analog circuitry. The OPA627BP is known for its low noise, low offset voltage, and high speed, making it a significant upgrade over earlier models like the OPA111 op amp.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | - | 40 | 100 | 130 | µV |
| Average Drift (dVOS/dT) | -25°C to +85°C | 0.4 | 0.8 | 1.2 | µV/°C |
| Input Bias Current (IB) | VCM = 0V | 1 | 5 | - | pA |
| Power Supply Rejection Ratio (PSRR) | VS = ±4.5V to ±18V | 106 | 120 | - | dB |
| Gain-Bandwidth Product (GBW) | G = 1 | - | 16 | - | MHz |
| Settling Time | 10V step, G = –1, to 0.01% | - | 550 | - | ns |
| Operating Voltage Range | - | ±4.5V | - | ±18V | V |
| Output Voltage | RL = 1kΩ | ±11.5 | - | ±12.3 | V |
| Current Output | VO = ±10V | - | ±45 | - | mA |
Key Features
- Very Low Noise: 4.5nV/√Hz at 10kHz, making it suitable for high-precision applications.
- Fast Settling Time: 550ns to 0.01% for the OPA627, ensuring rapid response times.
- Low Offset Voltage (VOS): Maximum of 100µV, contributing to high accuracy.
- Low Drift: Maximum of 0.8µV/°C, ensuring stable performance over temperature changes.
- Low Input Bias Current (IB): Maximum of 5pA, which is crucial for high-impedance sensor applications.
- Gain Options: The OPA627 is unity-gain stable, while the OPA637 is stable in gains ≥ 5.
- Wide Power-Supply Voltage Range: Operates from ±4.5V to ±18V, providing flexibility in power supply design.
Applications
- Precision Instrumentation: Ideal for applications requiring high accuracy and low noise.
- Fast Data Acquisition: Suitable for high-speed data acquisition systems due to its fast settling time.
- DAC Output Amplifier: Used in digital-to-analog converter output stages for precise signal amplification.
- Optoelectronics: Applicable in optoelectronic circuits where low noise and high speed are essential.
- Sonar and Ultrasound: Utilized in sonar and ultrasound systems that require high precision and speed.
- High-Impedance Sensor Amplifiers: Suitable for amplifying signals from high-impedance sensors due to its low input bias current).
- High-Performance Audio Circuitry: Used in audio circuits where low noise and high fidelity are critical).
- Active Filters: Employed in active filter designs requiring high precision and low noise).
Q & A
- What is the input offset voltage of the OPA627BP?
The input offset voltage (VOS) of the OPA627BP is a maximum of 100µV.
- What is the settling time of the OPA627BP?
The settling time of the OPA627BP is 550ns to 0.01% for a 10V step.
- What is the input bias current of the OPA627BP?
The input bias current (IB) of the OPA627BP is a maximum of 5pA.
- What is the power supply voltage range for the OPA627BP?
The OPA627BP operates over a wide power-supply voltage range of ±4.5V to ±18V.
- Is the OPA627BP unity-gain stable?
- What are some common applications of the OPA627BP?
- What is the gain-bandwidth product of the OPA627BP?
- What is the output voltage range of the OPA627BP?
- What is the current output capability of the OPA627BP?
- What are the package options for the OPA627BP?
