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DAC7801KU

製品説明
仕様・特性

DAC7800 DAC7801 DAC7802 SBAS005B – JANUARY 1990 – REVISED FEBRUARY 2004 Dual Monolithic CMOS 12-Bit Multiplying DIGITAL-TO-ANALOG CONVERTERS FEATURES APPLICATIONS 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 q q q q q PROCESS CONTROL OUTPUTS ATE PIN ELECTRONICS LEVEL SETTING PROGRAMMABLE FILTERS PROGRAMMABLE GAIN CIRCUITS AUTO-CALIBRATION CIRCUITS DESCRIPTION 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. 12 VREF A RFB A CSB WR 12 12-Bit MDAC DAC A VREF B AGND A RFB B IOUT B A1 UPD A0 WR CS CLR DAC7801 8-Bit Interface 8 Bits + 4 Bits 8 12 12-Bit MDAC DAC B AGND B CS CLR UPD B DAC7800 Serial Interface CLK Serial CSA IOUT A The DAC7800 features a serial interface capable of clockingin 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 functions. 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" DAC7802 12-Bit Interface UPD A The DAC7800, DAC7801 and DAC7802 are members of a new family of monolithic dual 12-bit CMOS multiplying Digital-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. 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. Copyright © 1990-2004, Texas Instruments Incorporated 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. www.ti.com

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