Overview
The Texas Instruments OPA2140AIDR is a dual-channel, low-power JFET input operational amplifier designed for precision and low-noise applications. This device is part of the OPAx140 family, which includes the OPA140, OPA2140, and OPA4140. The OPA2140AIDR is known for its excellent drift and low input bias current, making it suitable for a wide range of analog signal processing tasks. It operates on a single supply voltage from 4.5V to 36V or dual supplies from ±2.25V to ±18V, and is fully specified from -40°C to +125°C, ensuring reliability in challenging environments.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | OPA2140AIDR |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Amplifier Type | J-FET |
| Number of Circuits | 2 |
| Output Type | Rail-to-Rail |
| Slew Rate | 20 V/µs |
| Gain Bandwidth Product | 11 MHz |
| Current - Input Bias | 0.5 pA |
| Voltage - Input Offset | 30 µV |
| Current - Supply | 1.8 mA |
| Current - Output / Channel | 36 mA |
| Voltage - Supply, Single/Dual (±) | 4.5 V ~ 36 V, ±2.25 V ~ 18 V |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
Key Features
- Low Input Bias Current: 0.5 pA, making it ideal for high-impedance sources.
- Low Noise: Suitable for precision and low-noise applications.
- Rail-to-Rail Output: Allows the output to swing to within a few millivolts of the supply rails.
- Wide Supply Voltage Range: Operates on single supplies from 4.5V to 36V or dual supplies from ±2.25V to ±18V.
- High Gain Bandwidth Product: 11 MHz, and a slew rate of 20 V/µs.
- Temperature Range: Fully specified from -40°C to +125°C, ensuring reliability in various environments.
Applications
- Data Acquisition (DAQ): Suitable for use in data acquisition systems due to its low noise and high precision.
- Lab and Field Instrumentation: Ideal for laboratory and field instrumentation applications requiring high accuracy and stability.
- Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs): Interfaces well with modern ADCs and DACs due to its rail-to-rail output swing and input range.
- General Purpose Amplification: Used in various general-purpose amplification tasks where precision and low noise are critical.
Q & A
- What is the gain bandwidth product of the OPA2140AIDR?
The gain bandwidth product of the OPA2140AIDR is 11 MHz.
- What is the typical supply current of the OPA2140AIDR?
The typical supply current of the OPA2140AIDR is 1.8 mA.
- What is the input bias current of the OPA2140AIDR?
The input bias current of the OPA2140AIDR is 0.5 pA.
- What is the operating temperature range of the OPA2140AIDR?
The OPA2140AIDR operates from -40°C to +125°C.
- What are the available package options for the OPA2140AIDR?
The OPA2140AIDR is available in an 8-SOIC package.
- What is the slew rate of the OPA2140AIDR?
The slew rate of the OPA2140AIDR is 20 V/µs.
- Can the OPA2140AIDR operate on both single and dual supply voltages?
Yes, the OPA2140AIDR can operate on single supplies from 4.5V to 36V or dual supplies from ±2.25V to ±18V.
- What is the output type of the OPA2140AIDR?
The output type of the OPA2140AIDR is rail-to-rail.
- How many channels does the OPA2140AIDR have?
The OPA2140AIDR is a dual-channel operational amplifier.
- What is the typical input offset voltage of the OPA2140AIDR?
The typical input offset voltage of the OPA2140AIDR is 30 µV.
