參數(shù)資料
型號(hào)： DAC7802LU
廠商： Texas Instruments
文件頁(yè)數(shù)： 1/23頁(yè)
文件大小： 0K
描述： IC DUAL 12B CMOS MULT D/A 24SOIC
產(chǎn)品培訓(xùn)模塊： Data Converter Basics
標(biāo)準(zhǔn)包裝： 25
設(shè)置時(shí)間： 400ns
位數(shù)： 12
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 2
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 24-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 24-SOIC
包裝： 管件
輸出數(shù)目和類型： 2 電流，單極；2 電流，雙極
產(chǎn)品目錄頁(yè)面： 900 (CN2011-ZH PDF)
其它名稱： 296-12980-5
DAC7802LU-ND
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
CLR
WR
A0
CS
A1
UPD
A
UPD
B
CS
CLK
CLR
12-Bit MDAC
DAC B
R
12-Bit Interface
DAC7802
CSA
WR
12
8
CSB
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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