This document introduces the characteristics and usage of LTC2451 16-bit high performance ∆Σ analog-to-digital converter (ADC), including pin definition, usage steps, etc.
This guide explains how to set up and use the LTC2451 16-bit delta sigma ADC with I2C interface on demonstration circuit 1383. It includes connecting the board to a DC590 USB serial controller and running evaluation software to read input voltage. The board features exposed ground planes for grounding prototype circuitry and can be connected directly to target applications.
Hardware setup involves connecting the board to the DC590 via a 14-conductor ribbon cable, selecting the reference voltage with jumpers, and making analog connections via turret posts. The software allows logging data, adjusting reference voltage, and configuring display settings.
The ADC model is LTC2451.
The input is bipolar with a range of Ref-to Ref+.
The average input current is less than 50nA.
The LTC2451 is available in an 8 pin, 3x2mm DFN package.