DC1067A-B Analog Devices

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1067 EVALUATION BOARD LTC2450 DESCRIPTION Demonstration circuit 1067 features the LTC2450, a analog signals while using the DC590 USB Serial 16 bit high performance analog-to-digital con- Controller board and supplied software to measure verter (ADC). The LTC2450 features 2LSB linearity, performance. The exposed ground planes allow 2LSB offset, and 1.4V RMS noise. The input is sin- proper grounding to prototype circuitry. After evaluat- gle ended with a range of 0 (Ground) to Vcc. The ing with Linear Technologys software, the digital sig- modulators proprietary sampling technique reduces nals can be connected to the end applications proc- the average input current to less than 50nA orders essor / controller for development of the serial inter- of magnitude lower than typical delta sigma ADCs. face. The LTC2450 is available in a 6 pin, 3x3mm DFN package and has an easy to use SPI interface. Design files for this circuit board are available. Call DC1067 is a member of Linear Technologys the LTC factory. QuickEval family of demonstration boards. It is de- LTC is a trademark of Linear Technology Corporation signed to allow easy evaluation of the LTC2450 and may be connected directly to the target applications Figure 1. Proper Measurement Equipment Setup Monitor reference / Vcc or external reference source (See Hardware Set-up) Ribbon cable To DC590 Controller Single-ended In- put 1 QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1067 EVALUATION BOARD QUICK START PROCEDURE Connect DC1067 to a DC590 USB Serial Controller voltage. Details on software features are documented using the supplied 14 conductor ribbon cable. Con- in the control panels help menu. nect DC590 to host PC with a standard USB A/B ca- Tools are available for logging data, changing refer- ble. Run the evaluation software supplied with DC590 ence voltage, changing the number of points in the or downloaded from