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News
32-Bit SAR ADC with 0.5ppm Linearity Provides 148dB Dynamic Range
2017-04-03 | ReturnThe exceptional low noise density of LTC2500-32 produces 148dB of dynamic range at 61sps and 104dB at 1Msps. In addition to low noise, LTC2500-32 offers unrivaled linearity of 0.5ppm typical and 2ppm guaranteed maximum INL, and negligibly low gain and offset drift over wide temperature ranges. In combination, these features enable state-of-the-art high precision measurements in noisy environments, such as in industrial automation applications. The integrated configurable digital filter offers seven filter types and 13 different downsampling factors, providing users with a high level of flexibility to trade off bandwidth, filter response and noise performance for each application.
The LTC2500-32 is part of a family of ultrahigh precision SAR ADCs, which also includes the 32-bit LTC2508-32, providing digital filters optimized for data acquisition applications, and the 24-bit LTC2512-24, providing digital filters optimized for signal processing applications requiring a flat passband. The LTC2512-24 and LTC2508-32 provide a 14-bit no latency output for monitoring signal integrity and four downsampling factors for trading off bandwidth with dynamic range. The LTC2500-32 provides a broader range of filters and downsampling factors.
The LTC2500-32 is available today in commercial and industrial (–40℃ to 85℃) temperature grades. Pricing begins at $35.95 each in 1,000-piece quantities. The DC2222A evaluation board for the LTC2500 SAR ADC family is available at http://www.linear.com/demo or via a local Linear Technology sales office. For more information, visit www.linear.com/product/LTC2500-32
Summary of Features: LTC2500-32
• 104dB SNR at 1Msps
• Dual Output 32-Bit SAR ADC
o 32-Bit Digitally Filtered Low Noise Output
o 24-Bit Differential + 7-Bit Common Mode 1Msps Output with Overrange Detect
• Configurable Digital Filter with Synchronization
• 7 Filter Types: Sinc,1 Sinc,2 Sinc,3 Sinc,4 Spread-Sinc, Flat Passband, Averaging
• Wide Input Common Mode Range
• 128dB CMRR
• 24-Lead 7mm x 4mm DFN Package
Pricing shown is for budgetary use only and may differ due to local duties, taxes, fees and exchange rates.
Source:http://www.linear.com/