DAC1208LCJ – DAC1231/DAC1232 12-Bit/ mP Compatible/Double-Buffered D to A Converters

DAC1208LCJ Datasheet PDF learn more.

Part number : DAC1208LCJ

Functions : This is a kind of semiconductor, DAC1231/DAC1232 12-Bit/ mP Compatible/Double-Buffered D to A Converters.

Pin arrangement :

Package information :

Manufacturer : National Semiconductor

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DAC1208LCJ Datasheet PDF

The texts in the PDF file :

MICRO-DAC DAC1208 DAC1209 DAC1210 DAC1230 DAC1231 DAC1232 12-Bit mP Compatible Double-Buffered D to A Converters February 1995 MICRO-DAC TM DAC1208 DAC1209 DAC1210 DAC1230 DAC1231 DAC1232 12-Bit mP Compatible Double-Buffered D to A Converters General

Description

The DAC1208 and the DAC1230 series are 12-bit multiplying D to A converters designed to interface directly with a wide variety of microprocessors (8080 8048 8085 Z-80 etc ) Double buffering input registers and associated control lines allow these DACs to appear as a two-byte ‘‘stack’’ in the system’s memory or I O space with no additional interfacing logic required The DAC1208 series provides all 12 input lines to allow single buffering for maximum throughput when used with 16-bit processors These input lines can also be externally configured to permit an 8-bit data interface The DAC1230 series can be used with an 8-bit data bus directly as it internally formulates the 12-bit DAC data from its 8 input lines All of these DACs accept left-justified data from the processor The analog section is a precision silicon-chromium (Si-Cr) R-2R ladder network and twelve CMOS current switches An inverted R-2R ladder structure is used with the binary weighted currents switched between the IOUT1 and IOUT2 maintaining a constant current in each ladder leg independent of the switch state Special circuitry provides TTL logic input voltage level compatibility The DAC1208 series and DAC1230 series are the 12-bit members of a family of microprocessor compatible DACs (MICRO-DACsTM ) For applications requiring other resolutions the DAC1000 series for 10-bit and DAC0830 series for 8-bit are available alternatives

Features

Y Y Y Y Y Y Y Y Linearity specified with zero and full-scale adjust only Direct interface to all popular microprocessors Double-buffered single-buffered or flow through digital data inputs Logic inputs which meet TTL voltage level specs (1 4V logic threshold) Works with g 10V reference full 4-quad [ … ]

DAC1208LCJ PDF File


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