TIPD115: ADC, 18-Bit, 1MSPS, Low Noise Optimized

Summary

This design is for an 18-bit data acquisition block at 1MSPS throughput optimized for the lowest distortion and noise performance. The circuit is realized with an 18-bit successive-approximation-resistor (SAR) analog-to-digital converter (ADC), a fully differential input driver and a high precision reference and reference driver.

The design details the process for optimizing the precision front end drive circuit as well as the reference circuit to achieve excellent dynamic performance with the ADS8881 while consuming low power.

Specifications

Manufacturer	Texas Instruments
Category	Wired Communication
Sub-Category	Analog Front Ends (AFE)
Eval Board	Board not Stocked
Input Type	± 2.5 V
Input Channels	1
Resolution (Bits)	18 Bit
Sampling Rate	1 MSPS
Analog Outputs	- N/A
Analog Output Type	- N/A
Features	Fully Differential Input Driver High Precision Reference
Component Count + Extras	61 + 11
Design Author	Texas Instruments
Main I.C. Base Part	ADS8881
Date Created By Author
Date Added To Library	2015-06