ADS8345N

Analog To Digital Converters (ADC) Overview

The ADS8345N is a Texas Instruments 16-bit, 8-channel analog-to-digital converter (ADC) utilizing successive approximation register (SAR) architecture. It features a synchronous serial interface compatible with SPI and supports sampling rates up to 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 accommodates eight single-ended or four differential input channels within a 20-pin SSOP package. Key performance metrics include a signal-to-noise and distortion ratio (SINAD) of 85 dB, integral nonlinearity (INL) of ±8 LSB, and differential nonlinearity (DNL) of ±2 LSB. Typical power consumption is 3.2 mW at 100 kS/s with a 5 V supply.

Analog To Digital Converters (ADC) Feature Summary

• Supports flexible input configurations including eight single-ended or four differential channels for versatile signal acquisition.
• Features low power consumption with an operational shutdown mode reducing current draw below 15 µA.
• Provides high-resolution 16-bit data conversion with a maximum throughput rate of 100 kS/s.
• Compatible with standard microprocessor control via a synchronous serial interface.

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring multi-channel precision measurement
• Industrial process control instrumentation
• Portable battery-powered test and measurement equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'N' confirms the SSOP-20 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the external reference voltage requirements align with the system design specifications for optimal linearity performance.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications demanding 16-bit resolution across multiple channels without requiring internal references. Compare against the ADS8345E if QSOP-20 packaging is preferred. Evaluate power constraints carefully as the shutdown mode offers significant savings for intermittent operation scenarios.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS8345 family of high-speed, low-power ADCs. It serves as a successor to older 8-bit devices like the TLC0834, offering significantly higher resolution and speed. The N suffix specifically denotes the SSOP package, distinguishing it from the E suffix QSOP variant.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8345E is a pin-compatible alternative using a QSOP-20 package. Direct replacements should maintain the same SAR architecture and 16-bit resolution to ensure functional equivalence in existing designs.