ADS7066IRTER

Analog To Digital Converters (ADC) Overview

The ADS7066IRTER is a Texas Instruments 16-bit, 8-channel successive-approximation register (SAR) analog-to-digital converter. It features an integrated capless internal reference and operates at a maximum throughput of 250 kSPS with zero latency. The device supports single-ended inputs configurable as general-purpose I/Os. Electrical specifications include a signal-to-noise ratio of 91.9 dB, integral nonlinearity of ±1 LSB, and no missing codes. Power supplies range from 3 V to 5.5 V for analog and 1.65 V to 5.5 V for digital domains. The component utilizes an enhanced SPI interface supporting up to 60 MHz clock speeds.

Analog To Digital Converters (ADC) Feature Summary

• Configurable multiplexer allows channels to function as analog inputs or general-purpose digital I/Os
• Integrated low-drift voltage reference reduces external component count
• Programmable averaging filters enable resolution boosting beyond standard 16-bit output
• Enhanced SPI interface includes cyclic redundancy check for data integrity

Analog To Digital Converters (ADC) Applications

• Optical modules
• Optical line cards
• Multiparameter patient monitors

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix 'RTER' corresponds to the WQFN package variant when sourcing. Confirm that the required quantity aligns with manufacturer packaging standards. Ensure the application environment remains within the specified temperature range of -40°C to +125°C. Validate power supply requirements against the recommended operating conditions listed in the datasheet before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high channel density in a small footprint. The 16-bit resolution and low noise performance suit precision measurement tasks. Consider the GPIO capability if mixed-signal control is needed on the input pins. Verify that the 250 kSPS speed meets system timing requirements compared to faster variants like the ADS7067.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7066 family of high-precision SAR ADCs. It shares architectural similarities with the ADS7067 but offers a lower sampling rate of 250 kSPS compared to the 800 kSPS variant. Both devices utilize the same pinout and feature set, differing primarily in conversion speed capabilities.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7067 serves as a higher-speed alternative within the same package and pin configuration. Designers requiring greater throughput may substitute this model with the ADS7067 without modifying the board layout.

Analog To Digital Converters (ADC) FAQ

Can the analog input channels be used as digital outputs?

Yes, all eight channels can be individually configured as general-purpose digital inputs or outputs via the PIN_CFG register.

What is the default state of the internal reference upon power-up?

The internal reference is disabled by default on power-up; it must be explicitly enabled via the GENERAL_CFG register.

How does the device handle data integrity during communication?

The enhanced SPI interface includes a cyclic redundancy check (CRC) mechanism for both data read and write operations.