Analog Devices Inc. LTC2357-18 Demo Board

Analog Devices Inc. LTC2357-18 Demo Board is designed to evaluate the LTC2357 18-bit SAR ADCs. These ADCs are low noise, high speed, and 18-bit Successive Approximation Register (SAR). For precise sampling rates or to demonstrate AC performance such as SNR, THD, SINAD, and SFDR, the LTC2357-18 demo board uses the DC890 data collection board. This demo board demonstrates the AC and DC performance of the ADCs in conjunction with the DC2026C data controller board. The LTC2357-18 demo board comes with DC590/DC2026 data collection boards to demonstrate DC linearity and DC performance, such as peak-to-peak noise.

The LTC2357 SAR ADCs accept a wide common mode range that enables the ADCs to connect directly to sensors without compromising measurement accuracy. The LTC2357-18 demo board consists of a 2X buffer and an internal 2.048V reference to simplify basic operation. This demo board uses an external reference to increase the SNR and input range of the ADC.

Features

Highlights the LTC2357-18 family of buffered input ADCs
Demonstrates the DC performance such as peak-to-peak noise
Demonstrates AC performance:
- Signal-to-Noise Ratio (SNR)
- Total Harmonic Distortion (THD)
- Signal-to-Noise-and-Distortion Ratio (SINAD)
- Spurious Free Dynamic Range (SFDR)

Uses data collection boards:
- DC590/DC2026
- DC890
Controller boards:
- DC2026C
- DC890B
Simple driver circuit