Overview
The INA143UA from Texas Instruments is a high-speed, precision differential amplifier designed for a variety of applications requiring accurate and reliable signal processing. This amplifier features a gain of either 10V/V or 0.1V/V, making it versatile for different signal amplification needs. The device includes a precision op-amp with a laser-trimmed resistor network, ensuring high common-mode rejection and accurate gain over a wide temperature range.
The INA143UA operates from single or dual supplies, with a voltage range of +4.5V to +36V for single supply and ±2.25V to ±18V for dual supplies. This flexibility makes it suitable for various power supply configurations. The amplifier is packaged in an 8-pin SOIC, which is compact and suitable for surface mount applications.
Key Specifications
| Parameter | Description |
|---|---|
| Gain | 10V/V or 0.1V/V |
| Slew Rate | 5 V/µs |
| -3dB Bandwidth | 150 kHz |
| Input Offset Voltage | 100 µV (typical) |
| Supply Voltage (Single/Dual) | +4.5V to +36V, ±2.25V to ±18V |
| Quiescent Current | ±0.95 mA to ±1.2 mA |
| Operating Temperature | -40°C to 85°C |
| Package | 8-pin SOIC |
| Mounting Type | Surface Mount |
Key Features
- High Slew Rate and Bandwidth: The INA143UA features a high slew rate of 5 V/µs and a bandwidth of 150 kHz, making it suitable for high-speed applications.
- Precision Gain: The amplifier provides precise gain settings of 10V/V or 0.1V/V, with on-chip resistors laser-trimmed for accurate gain and high common-mode rejection.
- Wide Supply Range: It operates over a wide supply voltage range, from +4.5V to +36V for single supply and ±2.25V to ±18V for dual supplies.
- Low Offset Voltage: The device has a low input offset voltage, typically 100 µV, which is beneficial for applications requiring high accuracy.
- Compact Packaging: The 8-pin SOIC package is compact and suitable for surface mount applications, making it ideal for space-constrained designs.
Applications
- Automotive Systems: The INA143UA is suitable for automotive applications due to its robust performance over a wide temperature range and its ability to operate with various supply voltages.
- Battery-Powered Systems: Its low quiescent current makes it an excellent choice for battery-powered systems where power efficiency is crucial.
- Industrial Automation: The amplifier's high precision and reliability make it a good fit for industrial automation applications requiring accurate signal processing.
- Medical Devices: The INA143UA can be used in medical devices that require high accuracy and reliability in signal amplification.
- Test and Measurement Equipment: Its high slew rate and bandwidth make it suitable for use in test and measurement equipment where fast and accurate signal processing is necessary.
Q & A
- What are the gain options for the INA143UA?
The INA143UA offers gain options of 10V/V or 0.1V/V.
- What is the slew rate of the INA143UA?
The slew rate of the INA143UA is 5 V/µs.
- What is the bandwidth of the INA143UA?
The bandwidth of the INA143UA is 150 kHz.
- What is the typical input offset voltage of the INA143UA?
The typical input offset voltage is 100 µV.
- What are the operating supply voltage ranges for the INA143UA?
The INA143UA operates from +4.5V to +36V for single supply and ±2.25V to ±18V for dual supplies.
- What is the quiescent current of the INA143UA?
The quiescent current is typically ±0.95 mA to ±1.2 mA.
- What is the operating temperature range of the INA143UA?
The operating temperature range is -40°C to 85°C.
- What type of package does the INA143UA come in?
The INA143UA is packaged in an 8-pin SOIC.
- Is the INA143UA suitable for automotive applications?
Yes, the INA143UA is suitable for automotive applications due to its robust performance and wide temperature range.
- Can the INA143UA be used in battery-powered systems?
Yes, the INA143UA is suitable for battery-powered systems due to its low quiescent current.
