Overview
The OPA2140AIDGKR is a dual-channel, low-power operational amplifier from Texas Instruments. It belongs to the OPAx140 family, which includes the OPA140, OPA2140, and OPA4140. These amplifiers are known for their low-power consumption, high precision, and robust performance across a wide range of operating conditions.
The OPA2140AIDGKR features a JFET input stage, providing very-low offset drift and low input bias current. It operates with a single supply voltage from 4.5 V to 36 V or dual supplies from ±2.25 V to ±18 V, making it versatile for various applications. The device is fully specified from –40°C to +125°C, ensuring reliability in challenging environments.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (Single) | 4.5 | - | 36 | V |
| Supply Voltage (Dual) | ±2.25 | - | ±18 | V |
| Input Offset Voltage | ±30 | ±120 | ±220 | μV |
| Input Offset Voltage Drift | ±0.35 | ±1 | - | μV/°C |
| Input Bias Current | ±0.5 | ±10 | - | pA |
| Slew Rate | - | 20 | - | V/μs |
| Gain Bandwidth Product | - | 11 | - | MHz |
| Quiescent Current per Amplifier | 1.8 | 2 | 2.7 | mA |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | VSSOP (DGK), SOIC, SON | - | - |
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
- 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
- Precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
Q & A
- What is the operating temperature range of the OPA2140AIDGKR?
The operating temperature range is from –40°C to +125°C.
- What are the available package types for the OPA2140AIDGKR?
The available packages include VSSOP (DGK), SOIC, and SON.
- What is the typical quiescent current per amplifier for the OPA2140AIDGKR?
The typical quiescent current per amplifier is 2 mA.
- What is the slew rate of the OPA2140AIDGKR?
The slew rate is 20 V/μs.
- Does the OPA2140AIDGKR support single-supply and dual-supply operations?
- What is the input offset voltage of the OPA2140AIDGKR?
The input offset voltage is ±120 μV.
- What is the gain bandwidth product of the OPA2140AIDGKR?
The gain bandwidth product is 11 MHz.
- Is the OPA2140AIDGKR suitable for use in challenging environments?
- What are some common applications of the OPA2140AIDGKR?
- Does the OPA2140AIDGKR have rail-to-rail output swing?
