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DAC0832LCJ Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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DAC0832LCJ Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 28 page ![]() DAC0830/DAC0832 8-Bit µP Compatible, Double-Buffered D to A Converters General Description The DAC0830 is an advanced CMOS/Si-Cr 8-bit multiplying DAC designed to interface directly with the 8080, 8048, 8085, Z80®, and other popular microprocessors. A deposited silicon-chromium R-2R resistor ladder network divides the reference current and provides the circuit with excellent temperature tracking characteristics (0.05% of Full Scale Range maximum linearity error over temperature). The cir- cuit uses CMOS current switches and control logic to achieve low power consumption and low output leakage current errors. Special circuitry provides TTL logic input volt- age level compatibility. Double buffering allows these DACs to output a voltage corresponding to one digital word while holding the next digital word. This permits the simultaneous updating of any number of DACs. The DAC0830 series are the 8-bit members of a family of microprocessor-compatible DACs (MICRO-DAC™). Features n Double-buffered, single-buffered or flow-through digital data inputs n Easy interchange and pin-compatible with 12-bit DAC1230 series n Direct interface to all popular microprocessors n Linearity specified with zero and full scale adjust only — NOT BEST STRAIGHT LINE FIT. n Works with ±10V reference-full 4-quadrant multiplication n Can be used in the voltage switching mode n Logic inputs which meet TTL voltage level specs (1.4V logic threshold) n Operates “STAND ALONE” (without µP) if desired n Available in 20-pin small-outline or molded chip carrier package Key Specifications n Current settling time: 1 µs n Resolution: 8 bits n Linearity: 8, 9, or 10 bits (guaranteed over temp.) n Gain Tempco: 0.0002% FS/˚C n Low power dissipation: 20 mW n Single power supply: 5 to 15 V DC Typical Application 00560801 BI-FET™ and MICRO-DAC™ are trademarks of National Semiconductor Corporation. Z80® is a registered trademark of Zilog Corporation. March 2002 © 2002 National Semiconductor Corporation DS005608 www.national.com |