DC1491A Analog Devices

DEMO MANUAL DC1491A LTC2461: 16-BIT, Single-Ended, ADC 2 WITH I C INTERFACE DESCRIPTION Demonstration circuit 1491A features the LTC2461, a 16 bit DC590 USB Serial Controller board and supplied software high performance analog-to-digital converter (ADC) with to measure performance. The exposed ground planes allow 2 an I C interface. The input is single-ended with a range of proper grounding to prototype circuitry. After evaluating 0 to REF. The modulators proprietary sampling technique with Linear Technologys software, the digital signals can reduces the average input current to less than 50nA orders be connected to the end applications processor/controller of magnitude lower than typical delta sigma ADCs. for development of the serial interface. DC1491A is a member of Linear Technologys QuikEval Design les for this circuit board are available at www. family of demonstration boards. It is designed to allow easy linear.com/demo. evaluation of the LTC2461 and may be connected directly L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear to the target applications analog signals while using the Technology Corporation. All other trademarks are the property of their respective owners. Figure 1. Proper Measurement Equipment Setup RIBBON CABLE TO DC590 CONTROLLER INPUT dc1491af 1DEMO MANUAL DC1491A QUICK START PROCEDURE Connect DC1491A to a DC590 USB Serial Controller using reading the input voltage. Details on software features are the supplied 14 conductor ribbon cable. Connect DC590 to documented in the control panels help menu. host PC with a standard USB A/B cable. Run the evaluation Tools are available for logging data, changing reference software supplied with DC590 or downloaded from voltage, changing the number of points in the strip chart