Overview
The OPA140AID is a high-performance, low-noise operational amplifier manufactured by Texas Instruments. It belongs to the OPAx140 family, which includes single, dual, and quad versions. This device is designed for precision applications, offering excellent drift and low input bias current characteristics. The OPA140AID 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).
Key Specifications
| Parameter | Value |
|---|---|
| Unity-Gain Bandwidth | 11 MHz |
| Slew Rate | 20 V/µs |
| Input Offset Voltage | 120 µV |
| Input Offset Drift | 1 µV/°C maximum |
| Input Bias Current | 10 pA maximum |
| Noise (1/f) | 250 nV PP, 0.1 Hz to 10 Hz |
| Noise (Voltage) | 5.1 nV/√ Hz |
| Supply Current | 2 mA maximum |
| Single-Supply Voltage Range | 4.5 V to 36 V |
| Dual-Supply Voltage Range | ±2.25 V to ±18 V |
| Operating Temperature Range | -40°C to 125°C |
| Package Types | SOIC, SON, SOT-23, TSSOP, VSSOP |
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
The OPA140AID is ideal for various precision applications, including:
- Instrumentation
- Low noise gain control
- Interfacing with single-supply precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Challenging environmental conditions due to its operating temperature range of -40°C to 125°C
Q & A
- What is the unity-gain bandwidth of the OPA140AID?
The unity-gain bandwidth of the OPA140AID is 11 MHz.
- What is the slew rate of the OPA140AID?
The slew rate of the OPA140AID is 20 V/µs.
- What is the input offset voltage of the OPA140AID?
The input offset voltage of the OPA140AID is 120 µV.
- What is the input bias current of the OPA140AID?
The input bias current of the OPA140AID is 10 pA maximum.
- What are the supply voltage ranges for the OPA140AID?
The OPA140AID can operate on a single supply from 4.5 V to 36 V or dual supplies from ±2.25 V to ±18 V.
- What are the package types available for the OPA140AID?
The OPA140AID is available in SOIC, SON, SOT-23, TSSOP, and VSSOP packages.
- What is the operating temperature range of the OPA140AID?
The operating temperature range of the OPA140AID is -40°C to 125°C.
- Does the OPA140AID have phase reversal?
No, the OPA140AID does not have phase reversal.
- What are some typical applications for the OPA140AID?
The OPA140AID is typically used in instrumentation, low noise gain control, and interfacing with precision ADCs and DACs.
- What is the common-mode rejection ratio (CMRR) of the OPA140AID?
The CMRR of the OPA140AID is -90 dB.
