参数资料
型号: LTC8143FSW#TR
厂商: Linear Technology
文件页数: 1/8页
文件大小: 0K
描述: IC DAC 12BIT SERIAL MULTI 16SOIC
标准包装: 1,000
设置时间: 1µs
位数: 12
数据接口: 串行
转换器数目: 1
电压电源: 单电源
功率耗散(最大): 550µW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC
包装: 带卷 (TR)
输出数目和类型: 2 电流,单极;2 电流,双极
采样率(每秒): *
1
LTC7543/LTC8143
Improved Industry Standard
Serial 12-Bit Multiplying DACs
s
Improved Direct Replacement for AD7543
and DAC-8143
s
Low Cost
s
DNL and INL Over Temperature:
±0.5LSB
s
Easy, Fast and Flexible Serial Interface
s
Daisy-Chain 3-Wire Interface for Multiple DAC
Systems (LTC8143)
s
1LSB Maximum Gain Error Over Temperature
Eliminates Adjustment
s
Asynchronous Clear Input for Initialization
s
Four-Quadrant Multiplication
s
Low Power Consumption
s
16-Pin PDIP and SO Packages
The LTC
7543/LTC8143 are serial-input 12-bit multiply-
ing digital-to-analog converters (DACs). They are superior
pin compatible replacements for the AD7543 and
DAC-8143. Improvements include better accuracy, better
stability over temperature and supply variations, lower
sensitivity to output amplifier offset, tighter timing speci-
fications and lower output capacitance.
An easy-to-use serial interface includes an asynchronous
CLEAR input for systems requiring initialization to a known
state. The LTC8143 has a serial data output to allow daisy-
chaining multiple DACs on a 3-wire interface bus.
These DACs are extremely versatile. They can be used for
2-quadrant and 4-quadrant multiplying, programmable
gain and single supply applications, such as noninverting
voltage output and biased or offset ground mode.
Parts are available in 16-pin PDIP and SO packages and
are specified over the extended industrial temperature
range, – 40
°C to 85°C.
FEATURES
DESCRIPTION
U
s
Process Control and Industrial Automation
s
Remote Microprocessor-Controlled Systems
s
Digitally Controlled Filters and Power Supplies
s
Programmable Gain Amplifiers
s
Automatic Test Equipment
APPLICATIONS
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
U
Multiplying DAC Has Easy 3-Wire Serial Interface
VDD VREF
LTC7543
LTC8143
RFB
AGND
DGND
3
12
4
7
5
2
14
5V
VIN
CLOCK
DATA
LOAD
STB1
SRI
LD1
15
16
1
OUT 1
33pF
VOUT
7543/8143 TA01
OUT 2
+
LT
1097
Integral Nonlinearity Over Temperature
DIGITAL INPUT CODE
0
INTEGRAL
NONLINEARITY
(LSB)
4095
7543/8143 TA02
1024
2048
3072
1.0
0.5
0
–0.5
–1.0
512
1536
2560
3584
TA = 85°C
TA = 25°C
TA = –40°C
相关PDF资料
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