Friday, October 5, 2012

DAC0830,DAC0832 National Semiconductor pdf datasheet download


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 circuit
uses CMOS current switches and control logic to
achieve low power consumption and low output leakage
current errors. Special circuitry provides TTL logic input voltage
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™).

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
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

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 VDC

Click here to download DAC0830,DAC0832 National Semiconductor pdf datasheet

DatasheetDoc-National Semiconductor pdf datasheet download


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