Overview
The OPA140AIDBVT is a single-channel, low-noise JFET precision operational amplifier from Texas Instruments. It is part of the OPAx140 family, which includes the OPA140, OPA2140, and OPA4140. This device is known for its low-power consumption, good drift characteristics, and low input bias current. The OPA140AIDBVT features a rail-to-rail output swing and an input range that includes the negative supply voltage, making it suitable for interfacing with modern single-supply precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). It operates on a single supply from 4.5 V to 36 V or dual supplies from ±2.25 V to ±18 V and is fully specified from –40°C to +125°C, making it versatile for various challenging environments.
Key Specifications
| Parameter | Typical | Maximum | Unit |
|---|---|---|---|
| Unity-Gain Bandwidth | 11 | - | MHz |
| Slew Rate | 20 | - | V/μs |
| Input Offset Voltage | 120 | 220 | μV |
| Input Offset Voltage Drift | 1 | - | μV/°C |
| Input Bias Current | - | 10 | pA |
| Low Noise | 5.1 | - | nV/√Hz |
| 1/f Noise (0.1 Hz to 10 Hz) | - | 250 | nV PP |
| Quiescent Current per Amplifier | 1.8 | 2 | mA |
| Supply Voltage (Single Supply) | - | 4.5 to 36 | V |
| Supply Voltage (Dual Supply) | - | ±2.25 to ±18 | V |
| Operating Temperature Range | -40 to 125 | - | °C |
| Package | - | SOT-23 (DBV), 5 pins | - |
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
- Slew rate: 20 V/μs
- Low supply current: 2 mA maximum
- Input voltage range includes V– supply
- Single-supply operation: 4.5 V to 36 V
- Dual-supply operation: ±2.25 V to ±18 V
- No phase reversal
- Rail-to-rail output swing
Applications
- Intra-dc interconnect (metro)
- Semiconductor test
- Chemistry and gas analyzers
- DC power supply, AC source, electronic load
- Data acquisition (DAQ)
- Lab and field instrumentation
Q & A
- What is the unity-gain bandwidth of the OPA140AIDBVT?
The unity-gain bandwidth of the OPA140AIDBVT is 11 MHz.
- What is the slew rate of the OPA140AIDBVT?
The slew rate of the OPA140AIDBVT is 20 V/μs.
- What is the input offset voltage of the OPA140AIDBVT?
The input offset voltage of the OPA140AIDBVT is typically 120 μV.
- What is the input bias current of the OPA140AIDBVT?
The input bias current of the OPA140AIDBVT is typically 10 pA.
- What are the operating supply voltage ranges for the OPA140AIDBVT?
The OPA140AIDBVT 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 for the OPA140AIDBVT?
The operating temperature range for the OPA140AIDBVT is –40°C to +125°C.
- What package options are available for the OPA140AIDBVT?
The OPA140AIDBVT is available in a 5-pin SOT-23 (DBV) package.
- Does the OPA140AIDBVT have rail-to-rail output swing?
Yes, the OPA140AIDBVT features a rail-to-rail output swing.
- What are some common applications for the OPA140AIDBVT?
The OPA140AIDBVT is commonly used in intra-dc interconnect, semiconductor test, chemistry and gas analyzers, DC power supply, AC source, electronic load, data acquisition (DAQ), and lab and field instrumentation.
- Is the OPA140AIDBVT suitable for use in challenging environments?
Yes, the OPA140AIDBVT is fully specified from –40°C to +125°C, making it suitable for use in challenging environments.
