8-Channel isolated D/A Board with Built-in current and voltage readback
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8-Channel isolated D/A Board with Built-in-test • DNA- / DNR- / DNF-AO-318 for use in “Cube” / RACKtangle / FLATRACK I/O chassis • 8 independent fully isolated 16-bit DACs • Built-in-test functionality monitors both output voltage and current • 10 kHz per channel max update rate 10-Year • ±10 V output range, ±10 mA per channel Availability Guarantee • Simultaneous update across all channels General Description: The DNA-AO-318, DNR-AO-318 and DNF-AO-318 are fully isolated, highprecision, 8-channel analog voltage output board compatible with UEI’s popular “Cube”, RACKtangle and FLATRACK I/O chassis respectively. The boards offer full 16-bit resolution and guarantee monotonicity over the entire operating temperature range. Each DNA/DNR-AO-318 channel provides an output range of ±10 V and is capable of driving ±10 mA. For applications requiring higher output current or voltage, please refer to the DNx-AO-308-35x series boards. The DNx-AO-318 provides extensive built-in-test diagnostics. An onboard A/D converter on each channel allows the user to monitor both output voltage and current. A solid state relay on each output allows the D/A channel to be disconnected from the field I/O so that a complete board self-test can be completed without driving the circuitry connected to the outputs. This relay in combination with the output current and voltage sensing can also be set to disconnect the D/A output in the event of an external fault condition such as a short to ground or a DC power supply. All 8 channels may be configured to update simultaneously, or they may be updated one at a time as data is written. A 1024 sample FIFO allows each D/A to be updated at 10 kHz without data loss. Double buffering the outputs combined with the use of low glitch D/As make the DNxAO-318 an ideal solution for generating low frequency waveforms or providing highly accurate switched stimulus. Software included with the DNx-AO-318 provides a comprehensive yet easy to use API that supports all popular Windows programming languages as well as supporting programmers using Linux and most real-time operating systems including QNX, RTX, RT Linux, VXworks and more. Finally, the UEIDAQ Framework supplies complete support for those creating applications in data acquisition software packages such as LabVIEW, MATLAB/Simulink, DASYLab or any application which supports ActiveX or OPC servers. Technical Specifications: (at 25°C unless otherwise noted) Analog Outputs Resolution Max Update Rate: FIFO Buffer Size INL (no load) DNL (no load) Monotonicity Gain Calibration Error Offset Calibration Error Output Range Output Impedance Current Drive Settling Time Slew Rate Power up state Output Monitoring Accuracy (V / I) Sample/Update rate Isolation Power Consumption Operating Temp. (tested) Operating Humidity Vibration IEC 60068-2-6 IEC 60068-2-64 Shock IEC 60068-2-27 MTBF 8 channels 16-bits 10 kHz/channel (80 kHz max aggregate) 1024 samples ±6 LSB (0.018%) ±2 LSB (0.006%) 16 bits guaranteed over temperature ±610 µV, typ. ±305 µV, typ. ±10 V 0.5 Ω (typ) ±10 mA/channel 50 µs to 16 bits 1 V/µs 0 V ±10 mV ±5 mV / 100 µA (± 50 mV / 1 mA over FS temp) 10 Hz 350Vrms channel-to-channel and field wiring to chassis. 4.0 W (not including output loads) -40 °C to +85 °C 95%, non-condensing 5 g, 10-500 Hz, sinusoidal 5 g (rms), 10-500 Hz, broad-band random 50 g, 3 ms half sine, 18 shocks @ 6 orientations 30 g, 11 ms half sine, 18 shocks @ 6 orientations Block Diagram: Control Logic Analog Output Connector Control Logic Protection/Built-in Test Calibration EEPROM United Electronic Industries, Inc. Tel: (508) 921-4600

Simplified output schematic: Pinout Diagram: D/A & Buffer FPGA & Control Logic Current Sense Resistor V out Voltage and Current Monitor rsvd rsvd rsvd rsvd rsvd rsvd rsvd Aout 7 Gnd Aout 6 rsvd Aout 5 Gnd Aout 4 rsvd Aout 3 Gnd Aout 2 rsvd Aout 1 Gnd Aout 0 Rsvd rsvd rsvd rsvd rsvd rsvd rsvd Aout 7 rsvd Aout 6 Gnd Aout 5 rsvd Aout 4 Gnd Aout 3 rsvd Aout 2 Gnd Aout 1 rsvd Aout 0 Gnd Connection options: Cable DNA-CBL-37 series Screw Terminal Panel DNA-STP-37 United Electronic Industries, Inc. Tel: (508) 921-4600 Description 37 conductor screw terminal panel connects to board via DNA-CBL-37 or...