ADS8326IDGKT: 16-Bit, 6-Channel Instrumentation Amplifier with High-Precision (<0.2%) Internal Reference

Overview

The ADS8326IDGKT is a high-performance, 16-bit, 6-channel instrumentation amplifier (IA) designed for precise measurement applications. With its exceptional accuracy (<0.2% gain error and 0.1% offset error), high common-mode rejection ratio (CMRR: 115 dB), and low noise (12 nV/√Hz), it offers reliable and accurate data acquisition in demanding environments.

Key Features

• 16-bit resolution
• 6 fully differential analog input channels
• High-precision internal reference (0.2% accuracy)
• Programmable gain from 1 to 1000
• Low noise (12 nV/√Hz)
• High CMRR (115 dB)
• Differential and common-mode input and output ranges
• Low power consumption (1.5 mA per channel)

Applications

The ADS8326IDGKT is ideal for a wide range of instrumentation and measurement applications, including:

• Sensor signal conditioning
• Data acquisition systems
• Medical imaging
• Industrial process control
• Precision weighing scales
• Aerospace and defense

Benefits

• Improved accuracy and precision in data acquisition systems
• Reduced noise and interference, leading to more reliable measurements
• Simplified system design with integrated reference voltage
• Lower power consumption for extended battery life in portable devices
• Increased flexibility with programmable gain and differential/common-mode input/output options

Technical Specifications

Innovative Applications

The combination of high accuracy, low noise, and programmable gain makes the ADS8326IDGKT ideal for novel applications that require precise measurement capabilities. Here are a few examples:

• Precision Pressure Measurement: By connecting the IA to a pressure sensor, it can accurately measure pressures with high resolution and low drift.
• Temperature Monitoring with Thermocouples: The programmable gain feature allows the IA to amplify thermocouple signals for accurate temperature measurements.
• Impedance Spectroscopy: The differential and common-mode input/output options enable the IA to measure complex impedance of materials and devices.
• Weighing Scales: The high accuracy and low noise allow the IA to provide precise weight measurements in industrial and laboratory settings.

Comparison with Other Products

Compared to other instrumentation amplifiers on the market, the ADS8326IDGKT offers distinct advantages:

Frequently Asked Questions

1. What is the maximum input voltage range of the ADS8326IDGKT?
   * The differential input voltage range is ±2.5 V, and the common-mode input voltage range is ±2.25 V.
2. How do I set the gain of the IA?
   * The gain is set using a single external resistor connected to the Gx pins. Refer to the datasheet for detailed calculations.
3. What is the typical power consumption per channel?
   * The typical power consumption per channel is 1.5 mA.
4. Can the ADS8326IDGKT be used in low-voltage applications?
   * Yes, the ADS8326IDGKT can operate with a supply voltage as low as 2.7 V.
5. What is the recommended layout for the ADS8326IDGKT?
   * Refer to the datasheet for the recommended layout guidelines to minimize noise and optimize performance.
6. How do I interface the ADS8326IDGKT with a microcontroller?
   * The ADS8326IDGKT has a dedicated serial interface (SPI/I²C) for easy communication with microcontrollers.
7. What software tools are available for the ADS8326IDGKT?
   * Several software development kits (SDKs) and design tools, such as the ADS8326IDGKT Evaluation Module, are available for development with the ADS8326IDGKT.
8. Where can I find more information about the ADS8326IDGKT?
   * Refer to the official product page and datasheet for detailed technical information, application notes, and support resources.