Overview
The OPA140AIDR, produced by Texas Instruments, is a single-channel, low-power JFET input operational amplifier. This device is part of the OPAx140 family, which includes the OPA140, OPA2140, and OPA4140. The OPA140AIDR is known for its very-low offset drift, low input bias current, and low noise characteristics, making it suitable for a wide range of precision analog applications. 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, ensuring reliability in challenging environments.
Key Specifications
| Parameter | Typical | Maximum | Unit |
|---|---|---|---|
| Input Offset Voltage (VOS) | ±120 | ±220 | μV |
| Input Offset Voltage Drift (dVOS/dT) | ±1 | ±1 | μV/°C |
| Input Bias Current (IB) | 10 | 10 | pA |
| Power Supply Rejection Ratio (PSRR) | 0.1 | 0.5 | μV/V |
| Unity-Gain Bandwidth | 11 | MHz | |
| Slew Rate | 20 | V/μs | |
| Quiescent Current per Amplifier (IQ) | 1.8 | 2.7 | mA |
| Operating Temperature Range | –40°C to +125°C | ||
| Supply Voltage Range (Single Supply) | 4.5 V to 36 V | ||
| Supply Voltage Range (Dual Supply) | ±2.25 V to ±18 V |
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 nVPP, 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
- Available in industry-standard packages: SOIC, SON, SOT-23, TSSOP, and VSSOP
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 input offset voltage of the OPA140AIDR?
The input offset voltage is typically ±120 μV, with a maximum of ±220 μV.
- What is the slew rate of the OPA140AIDR?
The slew rate is 20 V/μs.
- What is the operating temperature range of the OPA140AIDR?
The operating temperature range is –40°C to +125°C.
- What are the supply voltage ranges for the OPA140AIDR?
The device 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 quiescent current per amplifier for the OPA140AIDR?
The quiescent current per amplifier is typically 1.8 mA, with a maximum of 2.7 mA.
- What are the typical applications of the OPA140AIDR?
Typical applications include intra-dc interconnect, semiconductor test, chemistry and gas analyzers, DC power supply, AC source, electronic load, data acquisition (DAQ), and lab and field instrumentation).
- What packages is the OPA140AIDR available in?
The OPA140AIDR is available in industry-standard packages such as SOIC, SOT-23, VSSOP).
- Does the OPA140AIDR have rail-to-rail output swing?
Yes, the OPA140AIDR features rail-to-rail output swing).
- What is the input bias current of the OPA140AIDR?
The input bias current is typically 10 pA).
- What is the unity-gain bandwidth of the OPA140AIDR?
The unity-gain bandwidth is 11 MHz).
