ADS8345E

Analog To Digital Converters (ADC) Overview

The ADS8345E is a Texas Instruments 16-bit, 8-channel sampling analog-to-digital converter (ADC) utilizing successive approximation register (SAR) architecture. It features a serial output interface compatible with SPI and supports a maximum sampling rate of 100 kS/s. The device operates on a single supply voltage ranging from 2.7 V to 5.25 V for both analog and digital domains. It accepts either eight single-ended or four differential input channels. Key performance metrics include a Signal-to-Noise and Distortion Ratio (SINAD) of 85 dB, a Differential Nonlinearity (DNL) of ±2 LSB, and an Integral Nonlinearity (INL) of ±8 LSB. Typical power consumption is 3.2 mW at 100 kS/s with a 5 V supply, while the shutdown mode reduces dissipation to below 15 µW. The component is housed in a 20-pin QSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Supports flexible input configurations with eight single-ended or four differential channels
• Enables low-power operation through a dedicated shutdown mode
• Provides high-resolution data conversion with 16-bit accuracy
• Features a standard serial interface for microcontroller integration

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring multi-channel monitoring
• Industrial process control instrumentation
• Portable battery-powered test and measurement equipment
• Personal digital assistants and handheld devices

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm package type and temperature range. Ensure the ordering code matches the required pin configuration and RoHS compliance status. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance of moderate speed and high resolution is required for multi-channel applications. The external reference requirement allows designers to optimize noise performance using precision references. Consider the QSOP-20 package constraints for PCB layout and thermal management during the design phase.

Analog To Digital Converters (ADC) Part Context

The ADS8345E belongs to the ADS8345 family of high-speed, low-power ADCs from Texas Instruments. This series is designed for applications demanding multiple inputs without sacrificing resolution. The E suffix typically denotes the commercial temperature range and specific packaging variant within the broader product line.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8344 is a pin-compatible alternative offering fewer channels. Designers upgrading from legacy parts should verify that the new component's voltage levels and timing requirements match the existing system architecture.