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DAC7801 Datasheet(PDF) 1 Page - Texas Instruments |
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DAC7801 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 23 page DESCRIPTION The DAC7800, DAC7801 and DAC7802 are members of a new family of monolithic dual 12-bit CMOS multiplying Digi- tal-to-Analog Converters (DACs). The digital interface speed and the AC multiplying performance are achieved by using an advanced CMOS process optimized for data conversion circuits. High stability on-chip resistors provide true 12-bit integral and differential linearity over the wide industrial temperature range of –40 °C to +85°C. The DAC7800 features a serial interface capable of clocking- in data at a rate of at least 10MHz. Serial data is clocked (edge triggered) MSB first into a 24-bit shift register and then latched into each DAC separately or simultaneously as required by the application. An asynchronous CLEAR control is provided for power-on reset or system calibration func- tions. It is packaged in a 16-pin 0.3" wide plastic DIP. The DAC7801 has a 2-byte (8 + 4) double-buffered interface. Data is first loaded (level transferred) into the input registers in two steps for each DAC. Then both DACs are updated simultaneously. The DAC7801 features an asynchronous CLEAR control. The DAC7801 is packaged in a 24-pin 0.3" wide plastic DIP. The DAC7802 has a single-buffered 12-bit data word interface. Parallel data is loaded (edge triggered) into the single DAC register for each DAC. The DAC7802 is packaged in a 24-pin 0.3" wide plastic DIP. FEATURES q TWO DACs IN A 0.3" WIDE PACKAGE q SINGLE +5V SUPPLY q HIGH-SPEED DIGITAL INTERFACE: Serial—DAC7800 8 + 4-Bit Parallel—DAC7801 12-Bit Parallel—DAC7802 q MONOTONIC OVER TEMPERATURE q LOW CROSSTALK: –94dB min q FULLY SPECIFIED OVER –40OC TO +85OC APPLICATIONS q PROCESS CONTROL OUTPUTS q ATE PIN ELECTRONICS LEVEL SETTING q PROGRAMMABLE FILTERS q PROGRAMMABLE GAIN CIRCUITS q AUTO-CALIBRATION CIRCUITS Dual Monolithic CMOS 12-Bit Multiplying DIGITAL-TO-ANALOG CONVERTERS Serial Interface 8-Bit Interface 8 Bits + 4 Bits Serial DAC7801 DAC7800 12-Bit MDAC DAC A FB B I OUT B 12-Bit MDAC DAC B R 12-Bit Interface DAC7802 12 8 12 12 AGND B REF B V FB A I OUT A R AGND A REF A V DAC7800 DAC7801 DAC7802 SBAS005B – JANUARY 1990 – REVISED FEBRUARY 2004 www.ti.com PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1990-2004, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. |
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