Overview
The OPA140AIDBVR is a single-channel, low-noise, JFET input operational amplifier produced by Texas Instruments. It is part of the OPAx140 family, which includes the OPA140, OPA2140, and OPA4140. This device is known for its high precision, low noise, and rail-to-rail output characteristics. The OPA140AIDBVR operates over a wide supply voltage range, from 4.5 V to 36 V for single-supply operation and ±2.25 V to ±18 V for dual-supply operation. It is designed to work in challenging environments, with an operating temperature range of –40°C to +125°C. The amplifier is available in various packages, including the 5-pin SOT-23 (DBV) package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Unity-Gain Bandwidth | 11 | MHz |
| Slew Rate | 20 | V/μs |
| Input Offset Voltage | ±120 | μV |
| Input Offset Voltage Drift | ±1 | μV/°C |
| Input Bias Current | 10 | pA |
| Noise Voltage Density | 5.1 | nV/√Hz |
| 1/f Noise | 250 nV PP (0.1 Hz to 10 Hz) | nV PP |
| Supply Current | 1.8 (typical), 2 (maximum) | mA |
| Operating Temperature Range | –40 to +125 | °C |
| Package | 5-pin SOT-23 (DBV) |
Key Features
- Very-low offset drift: 1 µV/°C maximum
- Very-low offset: 120 µV
- Low input bias current: 10 pA maximum
- Very-low 1/f noise: 250 nV PP, 0.1 Hz to 10 Hz
- Low noise: 5.1 nV/√ Hz
- No phase reversal
- Input voltage range includes V– supply
- Single-supply operation: 4.5 V to 36 V and dual-supply operation: ±2.25 V to ±18 V
- Rail-to-rail output swing
Applications
The OPA140AIDBVR is suitable for a variety of applications due to its low noise, high precision, and wide supply voltage range. It is particularly useful in:
- Data acquisition (DAQ) systems
- Lab and field instrumentation
- Interfacing with precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Challenging environmental conditions requiring a wide operating temperature range
Q & A
- What is the unity-gain bandwidth of the OPA140AIDBVR?
The unity-gain bandwidth of the OPA140AIDBVR is 11 MHz.
- What is the slew rate of the OPA140AIDBVR?
The slew rate of the OPA140AIDBVR is 20 V/μs.
- What is the input offset voltage of the OPA140AIDBVR?
The input offset voltage of the OPA140AIDBVR is ±120 μV.
- What is the input bias current of the OPA140AIDBVR?
The input bias current of the OPA140AIDBVR is 10 pA maximum.
- What is the noise voltage density of the OPA140AIDBVR?
The noise voltage density of the OPA140AIDBVR is 5.1 nV/√Hz.
- What are the supply voltage ranges for the OPA140AIDBVR?
The OPA140AIDBVR can operate on a single supply from 4.5 V to 36 V or dual supplies from ±2.25 V to ±18 V.
- What is the operating temperature range of the OPA140AIDBVR?
The operating temperature range of the OPA140AIDBVR is –40°C to +125°C.
- In what package is the OPA140AIDBVR available?
The OPA140AIDBVR is available in a 5-pin SOT-23 (DBV) package among others.
- Does the OPA140AIDBVR have rail-to-rail output swing?
Yes, the OPA140AIDBVR has rail-to-rail output swing.
- Is the OPA140AIDBVR suitable for use in challenging environments?
Yes, the OPA140AIDBVR is designed to work in challenging environments with its wide operating temperature range and robust specifications.
