Overview
The OPA4140AIDR is a high-precision, low-noise, rail-to-rail output operational amplifier (op amp) from Texas Instruments. This device is part of the OPAx140 series, which includes single, dual, and quad-channel versions. The OPA4140AIDR is designed for applications requiring low power consumption, excellent drift performance, and low input bias current. It operates on a single supply voltage ranging from 4.5V to 36V or dual supply voltages from ±2.25V to ±18V. The device is suitable for use in challenging environments, with an operating temperature range of -40°C to +125°C. It is available in a 14-pin SOIC and 14-pin TSSOP package, making it versatile for various design needs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Gain Bandwidth Product | 11 | MHz | |
| Slew Rate | 20 | V/µs | |
| Common Mode Rejection Ratio | 126 to 140 | dB | |
| Output Current per Channel | 36 | mA | |
| Input Bias Current | 10 | pA | |
| Input Offset Voltage | 0.12 | mV | |
| Supply Voltage - Max | 36 | V | |
| Supply Voltage - Min | 4.5 | V | |
| Operating Supply Current | 1.8 | mA | |
| Operating Temperature Range | -40 to +125 | °C | |
| Package | SOIC, TSSOP | 14-pin |
Key Features
- Low power consumption with a typical quiescent current of 1.8mA.
- Rail-to-rail output swing and input range, enabling connection to modern single-supply ADCs and DACs.
- Excellent drift performance and low input bias current, making it suitable for precision applications.
- High gain bandwidth product of 11MHz and slew rate of 20V/µs for fast signal processing.
- Wide supply voltage range, supporting both single and dual supply configurations.
Applications
The OPA4140AIDR is ideal for a variety of precision applications, including industrial automation, medical instrumentation, and consumer electronics. Its low noise and high precision make it suitable for use in signal conditioning, sensor amplification, and data acquisition systems. Additionally, its wide operating temperature range allows it to be used in harsh environments, such as automotive and aerospace applications.
Q & A
1. What is the operating temperature range of the OPA4140AIDR?
The OPA4140AIDR operates within a temperature range of -40°C to +125°C.
2. What is the supply voltage range for the OPA4140AIDR?
The supply voltage range is from 4.5V to 36V for single supply and ±2.25V to ±18V for dual supply.
3. What is the gain bandwidth product of the OPA4140AIDR?
The gain bandwidth product is 11MHz.
4. What is the slew rate of the OPA4140AIDR?
The slew rate is 20V/µs.
5. What is the input bias current of the OPA4140AIDR?
The input bias current is 10pA.
6. What is the input offset voltage of the OPA4140AIDR?
The input offset voltage is 0.12mV.
7. What is the output current per channel of the OPA4140AIDR?
The output current per channel is 36mA.
8. What is the common mode rejection ratio (CMRR) of the OPA4140AIDR?
The CMRR ranges from 126dB to 140dB.
9. What are the package options for the OPA4140AIDR?
The OPA4140AIDR is available in 14-pin SOIC and 14-pin TSSOP packages.
10. What are the typical applications of the OPA4140AIDR?
Typical applications include signal conditioning, sensor amplification, and data acquisition systems in industrial, medical, and consumer electronics.
