Overview
The OPA703NA/3KG4 is a CMOS operational amplifier produced by Texas Instruments. It is part of the OPA703 series, which is optimized for applications requiring rail-to-rail input and output swing. This amplifier is known for its low quiescent current, high speed, and wide supply range, making it highly versatile and suitable for various applications.
The OPA703NA/3KG4 is available in the SOT23-5 package and is fully specified and guaranteed over a temperature range of –40°C to +85°C. It offers excellent dynamic performance with a 1MHz gain-bandwidth product (GBW) and a 0.6V/µs slew rate, ensuring high stability and performance in a variety of operational conditions.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage Range (Single Supply) | 4 | 12 | V | |
| Supply Voltage Range (Dual Supplies) | ±2 | ±6 | V | |
| Quiescent Current (per amplifier) | 160 | 200 | µA | |
| Input Offset Voltage | ±160 | ±750 | µV | |
| Input Bias Current | 1 | pA | ||
| Gain-Bandwidth Product (GBW) | 1 | MHz | ||
| Slew Rate | 0.6 | V/µs | ||
| Operating Temperature Range | –40 | +85 | °C | |
| Storage Temperature Range | –65 | +150 | °C |
Key Features
- Rail-to-Rail Input and Output: The OPA703NA/3KG4 features rail-to-rail input and output swing, extending the input common-mode voltage range 300mV beyond the supply rails and allowing the output to swing within 40mV of the rail.
- Low Quiescent Current: The amplifier operates with a low quiescent current of 160µA per amplifier, making it suitable for power-sensitive applications.
- High Speed: It offers a 1MHz gain-bandwidth product and a 0.6V/µs slew rate, ensuring high dynamic performance.
- Low Input Bias Current: The input bias current is as low as 1pA, reducing the impact on the input signal.
- Compact Packages: Available in MicroSIZE packages such as SOT23-5, MSOP-8, TSSOP-14, and others, making it ideal for space-limited applications.
Applications
- Automotive Applications: Suitable for audio, sensor applications, and security systems in automotive environments.
- Portable Equipment: Ideal for use in portable devices due to its low power consumption and compact size.
- Active Filters: Can be used in active filter circuits requiring high accuracy and stability.
- Transducer Amplifiers: Effective in amplifying signals from transducers in various measurement systems.
- Test Equipment and Data Acquisition: Used in automatic test equipment and data acquisition systems for its high speed and low noise characteristics.
Q & A
- What is the supply voltage range for the OPA703NA/3KG4?
The supply voltage range for the OPA703NA/3KG4 is from 4V to 12V for single supply and ±2V to ±6V for dual supplies.
- What is the quiescent current of the OPA703NA/3KG4?
The quiescent current is 160µA per amplifier.
- What is the gain-bandwidth product (GBW) of the OPA703NA/3KG4?
The GBW is 1MHz.
- What is the slew rate of the OPA703NA/3KG4?
The slew rate is 0.6V/µs.
- What is the operating temperature range for the OPA703NA/3KG4?
The operating temperature range is from –40°C to +85°C.
- What are the key applications of the OPA703NA/3KG4?
Key applications include automotive, portable equipment, active filters, transducer amplifiers, and test equipment and data acquisition systems.
- What package options are available for the OPA703NA/3KG4?
It is available in SOT23-5, MSOP-8, TSSOP-14, and other compact packages.
- How does the rail-to-rail input and output feature benefit the OPA703NA/3KG4?
The rail-to-rail input and output feature extends the input common-mode voltage range and allows the output to swing close to the supply rails, maintaining dynamic range especially in low supply applications.
- What is the input bias current of the OPA703NA/3KG4?
The input bias current is as low as 1pA.
- Can the OPA703NA/3KG4 be used in high-speed applications?
Yes, it is suitable for high-speed applications due to its 1MHz GBW and 0.6V/µs slew rate.
