Overview
The OPA703NA/250 is a single-channel, rail-to-rail input and output operational amplifier produced by Texas Instruments. This CMOS op-amp is designed for applications requiring low power consumption and high performance. It is available in a compact SOT23-5 package, making it suitable for space-constrained designs. The OPA703 offers excellent dynamic performance with a bandwidth of 1 MHz and a slew rate of 0.6 V/µs, ensuring high-speed operation while maintaining low quiescent current of less than 200 µA per amplifier.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage Range (Single Supply) | 4 | 12 | V | |
| Supply Voltage Range (Dual Supplies) | ±2 | ±6 | V | |
| Input Offset Voltage (VOS) | ±160 | ±750 | µV | |
| Input Bias Current | 1 | pA | ||
| Bandwidth (GBW) | 1 | MHz | ||
| Slew Rate | 0.6 | V/µs | ||
| Quiescent Current (IQ) | 160 | 200 | µA | |
| Operating Temperature Range | –40 | 85 | °C | |
| Package Type | SOT23-5 |
Key Features
- Rail-to-Rail Input and Output: The OPA703 extends its input swing 300mV beyond the supply rails and the output swings to within 40mV of the rail, ensuring maximum dynamic range.
- Low Quiescent Current: With a quiescent current of less than 200 µA per amplifier, it is suitable for low-power applications.
- High Speed: Offers a bandwidth of 1 MHz and a slew rate of 0.6 V/µs, making it suitable for high-speed applications.
- Low Offset Voltage: Input offset voltage is typically ±160 µV, ensuring high accuracy.
- MicroSIZE Packages: Available in compact SOT23-5, MSOP-8, TSSOP-14, and other packages, making it ideal for space-constrained designs.
- Wide Operating Temperature Range: Specified for operation from –40°C to +85°C.
Applications
- Automotive Applications: Suitable for audio, sensor applications, and security systems in automotive environments.
- Portable Equipment: Ideal for battery-powered devices due to its low power consumption.
- Active Filters: Can be used in active filter circuits requiring high accuracy and low noise.
- Transducer Amplifiers: Suitable for amplifying signals from various transducers.
- Test Equipment and Data Acquisition: Used in test and measurement equipment and data acquisition systems.
Q & A
- What is the supply voltage range for the OPA703NA/250?
The supply voltage range for the OPA703NA/250 is from 4V to 12V for single supply and ±2V to ±6V for dual supplies.
- What is the typical input offset voltage of the OPA703NA/250?
The typical input offset voltage is ±160 µV.
- What is the bandwidth and slew rate of the OPA703NA/250?
The OPA703NA/250 has a bandwidth of 1 MHz and a slew rate of 0.6 V/µs.
- What is the quiescent current of the OPA703NA/250?
The quiescent current is less than 200 µA per amplifier.
- In what package is the OPA703NA/250 available?
The OPA703NA/250 is available in a SOT23-5 package.
- What is the operating temperature range of the OPA703NA/250?
The operating temperature range is from –40°C to +85°C.
- Does the OPA703NA/250 have rail-to-rail input and output capability?
Yes, the OPA703NA/250 has rail-to-rail input and output capability, extending the input swing 300mV beyond the supply rails and the output swinging to within 40mV of the rail.
- What are some common applications of the OPA703NA/250?
Common applications include automotive systems, portable equipment, active filters, transducer amplifiers, and test equipment.
- How does the OPA703NA/250 handle input bias current?
The input bias current is typically 1 pA, which is very low and suitable for high-impedance sources.
- What precautions should be taken when handling the OPA703NA/250?
The OPA703NA/250 is sensitive to electrostatic discharge (ESD). Proper handling and installation procedures should be followed to avoid damage.
