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參數資料
| 型號： | LTC8143FSW#PBF |
| 廠商： | Linear Technology |
| 文件頁數： | 1/8頁 |
| 文件大小： | 0K |
| 描述： | IC D/A CONV 12BIT SERIAL 16-SOIC |
| 標準包裝： | 47 |
| 設置時間： | 1µs |
| 位數： | 12 |
| 數據接口： | 串行 |
| 轉換器數目： | 1 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 550µW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 16-SOIC |
| 包裝： | 管件 |
| 輸出數目和類型： | 2 電流，單極；2 電流，雙極 |
| 采樣率（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
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