Overview
The OPA378AIDCKR from Texas Instruments is a high-performance, low-noise operational amplifier belonging to the Zerø-Drift series. This single-channel precision op-amp is designed for low-power, precision applications and is particularly suited for single-supply operations. It features a low offset voltage of 20μV and a low offset voltage drift of 0.1μV/°C, making it ideal for applications requiring high accuracy and stability.
Key Specifications
| Parameter | Value |
|---|---|
| Offset Voltage | 20μV |
| Offset Voltage Drift | 0.1μV/°C |
| Gain Bandwidth | 900kHz |
| Quiescent Current | 125μA (typical), 150μA (max) |
| Input Bias Current | 150pA (typical) |
| Supply Voltage Range | 2.2V to 5.5V |
| Input/Output Configuration | Rail-to-Rail Input/Output |
| Package Type | SC70-5 |
| Operating Temperature Range | -40°C to 125°C |
Key Features
- Low Offset Voltage and Drift: 20μV offset voltage and 0.1μV/°C offset voltage drift ensure high precision and stability.
- High Gain Bandwidth: 900kHz gain bandwidth supports a wide range of applications.
- Low Power Consumption: Quiescent current of 125μA (typical) and 150μA (max) makes it suitable for battery-powered devices.
- Rail-to-Rail Input/Output: Allows the input and output to swing within 10mV of the supply rails.
- EMI Filtering: Internal low-pass filter reduces the amplifier's response to electromagnetic interference (EMI).
- High PSRR: Excellent power supply rejection ratio (PSRR) performance ensures minimal impact from power supply noise.
Applications
- Analog-to-Digital Converters (ADCs): Ideal for driving ADCs without degrading differential linearity.
- Single-Supply Systems: Optimized for low-voltage, single-supply operation, making it suitable for battery-powered devices.
- Precision Instrumentation: High precision and low noise make it suitable for various precision instrumentation applications.
- Medical Devices: Low power consumption and high accuracy are beneficial in medical device applications.
Q & A
- What is the offset voltage of the OPA378AIDCKR?
The offset voltage of the OPA378AIDCKR is 20μV.
- What is the gain bandwidth of the OPA378AIDCKR?
The gain bandwidth of the OPA378AIDCKR is 900kHz.
- What is the typical quiescent current of the OPA378AIDCKR?
The typical quiescent current is 125μA, with a maximum of 150μA.
- What is the input bias current of the OPA378AIDCKR?
The input bias current is approximately 150pA.
- What is the supply voltage range for the OPA378AIDCKR?
The supply voltage range is from 2.2V to 5.5V.
- Does the OPA378AIDCKR have rail-to-rail input and output?
Yes, the OPA378AIDCKR features rail-to-rail input and output.
- What type of package is the OPA378AIDCKR available in?
The OPA378AIDCKR is available in a SC70-5 package.
- What is the operating temperature range for the OPA378AIDCKR?
The operating temperature range is from -40°C to 125°C.
- Does the OPA378AIDCKR have built-in EMI filtering?
Yes, the OPA378AIDCKR has an internal low-pass filter to reduce EMI.
- What are some common applications for the OPA378AIDCKR?
Common applications include driving ADCs, single-supply systems, precision instrumentation, and medical devices.
