DC575A Analog Devices

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 575 24-BIT DIFFERENTIAL INPUT DELTA SIGMA ADC LTC2410 DESCRIPTION Demonstration circuit 575 features the LTC2410, a analog signals while using the DC590 USB Serial 24-bit high performance analog-to-digital con- Controller board and supplied software to measure verter (ADC). The LTC2410 features 2ppm linearity, performance. The exposed ground planes allow 2.5ppm full-scale accuracy, 0.1ppm offset, and proper grounding to prototype circuitry. After evaluat- 0.16ppm noise. The inputs and reference are fully ing with Linear Technologys software, the digital sig- differential, with input common mode rejection of 140 nals can be connected to the end applications proc- dB. The LTC2410 is available in a 16 pin GN package essor / controller for development of the serial inter- and has an easy to use SPI interface. face. DC575 is a member of Linear Technologys QuickEval family of demonstration boards. It is de- Design files for this circuit board are available. Call signed to allow easy evaluation of the LTC2410 and the LTC factory. may be connected directly to the target applications 1 QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 575 24-BIT DIFFERENTIAL INPUT DELTA SIGMA ADC QUICK START PROCEDURE Connect DC575 to a DC590 USB Serial Controller us- software features are documented in the control ing the supplied 14-conductor ribbon cable. Connect panels help menu. DC590 to the host PC with a standard USB A/B cable. Tools are available for logging data, changing refer- Run the evaluation software supplied with DC590 or ence voltage, changing the number of points in the downloaded from www.linear.com. The correct pro- strip chart and histogram, and changing the number gram will be loaded automatically. Click the COLLECT of points averaged for the DVM display. button to start reading the input voltage. Details on 2