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1 / 4 page QUICK FIND tel: 440-439-4091 fax: 440-439-4093 248 sales@iotech.com www.iotech.com the smart approach to instrumentation™ ® Features • Two or four isolated 16-bit outputs • 100-kHz/channel update rate • 480 Ksamples/channel max buffer • ±1, ±2, ±5, & ±10 VFS programmable unipolar & bi-polar output ranges • One-shot, step, burst, waveform, & continuous output modes • GET, external TTL, IEEE command, & time event trigger sources • ASCII, binary, integer decimal, & hexa- decimal data formats • Standard sine, square, & triangle waveform generation • 500 VDC channel-to-channel isolation • Eight digital inputs & eight digital outputs • 100 mA high-current outputs • LabVIEW® drivers The DAC488HR™ is an IEEE 488 program- mable 16-bit D/A converter. It can be configured with either two or four output channels, which are optically isolated from each other and from IEEE 488 common by up to 500 VDC. Each channel is inde- pendently programmable for 1, 2, 5, or 10 VFS unipolar or bipolar output, specified as either bits or volts in ASCII, integer, hexadecimal, or binary format. Multiple output modes, multiple clock and trigger sources, and buffer management enable the DAC488HR to function as a precision voltage source, a function generator, or an arbitrary waveform generator. Waveforms captured by IOtech’s 16-bit, 100-kHz ADC488A series (see p. 243) digi- tizers can be edited and transferred to the DAC488HR for output. The ADC488A™ series and DAC488HR in combination form a powerful waveform I/O system. Typical applications include transducer simulation, disk drive testing, vibration analysis, and materials testing. DAC488HR ™ 16-bit D/A Converter with Digital I/O & IEEE 488 Burst Mode. Functionally identical to step mode, except that waveforms rather than single values are output. Waveform Mode. Based on recognition of a trigger, the waveform buffer is output for a specified number of cycles. Continuous Mode. Data is continuously input from the IEEE 488 bus and output to an analog channel at rates up to 200 Kbytes/s upon the detection of a specified trigger. This mode is ideally suited for audio, speech, and other applications that require long duration waveforms. Trigger Modes The DAC488HR’s five trigger modes sup- port a wide variety of applications. Bus Control Mode. Each port is programmed to output a specified value under direct control from the IEEE 488 bus. This mode is useful for maintaining an initial value until a specified condition occurs. Step Mode. When a specified trigger is detected, a value is output from the buffer, and the DAC488HR is automati- cally re-armed until the specified buffer count is reached. The last specified buffer value is held as the output. + - + - + - + - IEEE Filter488 DAC488HR/2 SCSI488/S DAC488HR IEEE 488 controller Up to 13 IEEE 488 devices 2- or 4-channel 16-bit, isolated 100-kHz analog outputs 8 digital outputs 8 digital inputs DAC488HR CH1 CH2 CH3 CH4 The versatile DAC488HR functions as a voltage source, function generator, and an arbitrary waveform generator |
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