DIAMOND-MM-48-AT Autocalibrating 16-ch 16-bit A/D + 8-ch 12-bit D/A Ext Temp  2-in-1 design reduces size, weight, and cost  16 analog inputs, 16-bit A/D  Single-channel, multi-channel round robin, and multi- channel scan sampling  Interrupt-based A/D data transfer with FIFO support  Autocalibration for highest accuracy DESCRIPTION SPECIFICATIONS Diamond-MM-48-AT is the newest in Diamond Systems’ Analog Inputs popular AT series of PC/104 autocalibrating analog I/O Number of inputs 16 single-ended boards. It combines the features of two different I/O A/D resolution 16 bits (1/65,536 of full boards into a single board to reduce the size and weight scale) of your PC/104 stack: Bipolar ranges ±10V, ±5V Unipolar ranges 0-5V The analog I/O features are similar to our DMM-16-AT Input bias current ±20pA max board: 16 analog inputs with 16-bit A/D, 8 analog outputs Input impedance 10^13 Ohms typical with 12-bit D/A, and on-board counter/timer for A/D Overvoltage ±35V on any analog input sample rate and interrupt control. protection without damage Input Impedance 10^13 ohms The digital I/O features are similar to our Opal-MM board: Nonlinearity ±3LSB, no missing codes 8 relays with SPDT (form C) contacts and 4 optocouplers Conversion rate 200,000 samples/sec.max with up to 28V AC/DC input capability. The optocouplers Conversion software trigger, internal feature an interrupt on edge detection feature for safety trigger pacer clock, or external TTL applications. An additional 4 TTL level digital I/O lines are signal also provided on the board, and these lines also feature Analog Outputs interrupt on edge detection capability. Number of 8 outputs Diamond-MM-48-AT is designed for rugged environ- D/A resolution 12 bits (1/4096 of full scale) ments. It uses latching I/O connectors, and all jumpers can Output ranges 0 - 4.096V (1mV/LSB) be bypassed with the installation of 0-ohm resistors to Output current 2mA max per channel (2K provide a vibration-proof fixed configuration. In addition ohm load min) the board is tested and guaranteed to operate reliably Settling time 3µS max to ±1/2 LSB over the industrial temperature range of -40 to +85oC. Relative accuracy ±6 LSB Nonlinearity ±1 LSB, monotonic www.diamondsystems.com ANALOG I/O The analog input circuit features 16 A/D input chan- nels with 16-bit resolution, single-ended configura- tion, and a fixed input range of +/-10V (0-10V and +/-5V are also available as factory settings). The maxi- mum sampling rate is increased to 200KHz and is supported by a new larger 2K sample FIFO. The analog output circuit has 8 D/A channels with 12-bit resolution and a 0-4.096V output range. This range provides an intuitive conversion formula of 1mV per LSB to simplify programming and provide a more appropriate set of true output voltages. ORDERING INFORMATION Part No. Description DMM-48-AT Diamond-MM Autocalibrating 16-ch 16-bit A/D + 8-ch 12-bit D/A Ext Temp DMM-48U-AT Autocalibrating 16-ch. 16-bit unipolar A/D, 4 optoisolated inputs, 8 relays FOR MORE INFORMATION Diamond Systems Corporation 1255 Terra Bella Avenue Mountain View, CA 94043 Tel: 650-810-2500 Fax: 650-810-2525 techinfo@diamondsystems.com www.diamondsystems.com