14-Bit & 15 Bit Sampling Analog to Digital Converter DAS1152/DAS1153 FEATURES Complete with High Accuracy Sample/Hold and A/D Converter Differential Nonlinearity: 0.002% FSR max (DAS1153) Nonlinearity: DAS1152: 0.005% FSR max DAS1153: 0.003% FSR max Low Differential Nonlinearity T.C.: 2ppm/C max High Throughput Rate: 25kHz min (DAS1152) High Feedthrough Rejection: -96dB Byte-Selectable Tri-State Buffered Outputs Internal Gain & Offset Potentiometers Improved Second Source to A/D/A/M 824 and A/D/A/M 825 Modules Low Cost APPLICATIONS Process Control Data Acquisition Automated Test Equipment Seismic Data Acquisition Nuclear Instrumentation Medical Instrumentation Robotics GENERAL DESCRIPTION The DAS11152/DAS1153 are 14-/15-bit sampling analog-to-digital converters having a maximum throughput rate of 25kHz/20kHz. They provide high accuracy, high stability, and functional completeness all in a 2" x 4" x 0.44" metal case. Guaranteed high accuracy system performance such as nonlinearity of 0.005% FSR (DAS1152)/ 0.003% FSR (DAS1153) and differential nonlinearity of 0.003% FSR (DAS1152)/ 0.002% FSR (DAS1153) are provided. Guaranteed stability such as differential nonlinearity T.C. of 2ppm/C (DAS1153) maximum, zero T.C. of 80V/C maximum, gain T. C. of 8ppm/C maximum and power supply sensitivity of 0.001% FSR/% Vs are also provided by the DAS1152/DAS1153. The DAS1152/DAS1153 make extensive use of both integrated circuit and thin film components to obtain their excellent performance, small size, and low cost. The devices contain a precision sample/hold amplifier, high accuracy 14-/15-bit analog- to-digital converter, tristate output buffers, internal gain and offset trim potentiometers, and power supply bypass capacitors (as shown in Figure 1). Information furnished by Intronics is believed to be accurate and reliable. However, no responsibility is assumed by Intronics for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intronics. Figure 1. DAS1152/DAS1153 Block Diagram Four analog input voltage ranges are selectable via user pin programming: 0V to +5V, 0V to +10V, 5V, and 10V. Unipolar coding is provided in true binary format with bipolar coding displayed in offset binary and two's complement. Tri-state buffers provide easy interface to bus structured applications. 1400 Providence Highway, Building #2 Norwood, MA 02062 Phone (781) 551-5500 FAX (781) 551-5555 www.intronicspower.com