DC1490A Analog Devices

DEMO MANUAL DC1490B LTC2460: 16-Bit, Differential, D ADC with SPI Interface DESCRIPTION Demonstration circuit 1490B features the LTC2460, a 16bit DC590 USB Serial Controller board and supplied software high performance analogtodigital converter (ADC) to measure performance. The exposed ground planes allow with an SPI interface. The input is unipolar with a range proper grounding to prototype circuitry. After evaluating of 0REF. The modulators proprietary sampling technique with Linear Technologys software, the digital signals can reduces the average input current to less than 50nA or be connected to the end applications processor/controller ders of magnitude lower than typical delta sigma ADCs. for development of the serial interface. DC1490B is a member of Linear Technologys QuikEval Design files for this circuit board are available at family of demonstration boards. It is designed to allow easy www.linear.com/demo/1490 evaluation of the LTC2460 and may be connected directly L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and QuikEval is a trademark of Linear Technology Corporation. All other trademarks are the property to the target applications analog signals while using the of their respective owners. RIBBON CABLE TO DC590 CONTROLLER INPUT Figure 1. Proper Measurement Equipment Setup dc1490bfa 1DEMO MANUAL DC1490B QUICK START PROCEDURE Connect DC1490B to a DC590 USB Serial Controller using the supplied 14 conductor ribbon cable. Connect DC590 to host PC with a standard USB A/B cable. Run the evalu ation software supplied with DC590 or downloaded from