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DAC DAC8043 804 3 CMOS 12-Bit Serial Input Multiplying
DIGITAL-TO-ANALOG CONVERTER
FEATURES APPLICATIONS в—Џ 12-BIT ACCURACY IN 8-PIN SOIC в—Џ AUTOMATIC CALIBRATION в—Џ FAST 3-WIRE SERIAL INTERFACE в—Џ MOTION CONTROL в—Џ LOW INL AND DNL: В±1/2 LSB max в—Џ MICROPROCESSOR CONTROL SYSTEMS в—Џ GAIN ACCURACY TO В±1LSB max в—Џ PROGRAMMABLE AMPLIFIER/
ATTENUATORS
в—Џ DIGITALLY CONTROLLED FILTERS в—Џ LOW GAIN TEMPCO: 5ppm/В°C max
в—Џ OPERATES WITH +5V SUPPLY
в—Џ TTL/CMOS COMPATIBLE
в—Џ ESD PROTECTED DESCRIPTION
The DAC8043 is a 12-bit current output multiplying
digital-to-analog converter (DAC) that is packaged in a
space-saving, surface-mount 8-pin SOIC. Its 3-wire serial interface saves additional circuit board space which
results in low power dissipation. When used with microprocessors having a serial port, the DAC8043 minimizes
the digital noise feedthrough from its input to output.
The serial port can be used as a dedicated analog bus and
kept inactive while the DAC8043 is in use. Serial interfacing reduces the complexity of opto or transformer
isolation applications.
The DAC8043 contains a 12-bit serial-in, parallel-out
shift register, a 12-bit DAC register, a 12-bit CMOS
DAC, and control logic. Serial input (SRI) data is clocked
into the input register on the rising edge of the clock
(CLK) pulse. When the new data word had been clocked
in, it is loaded into the DAC register by taking the LD …
