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LTC1329ACS8-50#TR PDF预览

LTC1329ACS8-50#TR

更新时间: 2024-09-23 19:50:11
品牌 Logo 应用领域
凌特 - Linear 光电二极管转换器
页数 文件大小 规格书
8页 214K
描述
LTC1329 - Micropower 8-Bit Current Output D/A Converter; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C

LTC1329ACS8-50#TR 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:SOIC包装说明:SOP, SOP8,.25
针数:8Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.16转换器类型:D/A CONVERTER
输入位码:BINARY输入格式:SERIAL
JESD-30 代码:R-PDSO-G8JESD-609代码:e0
长度:4.9 mm湿度敏感等级:1
位数:8功能数量:1
端子数量:8最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP8,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):235电源:3.3/5 V
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Other Converters最大压摆率:0.15 mA
标称供电电压:3.3 V表面贴装:YES
技术:CMOS温度等级:COMMERCIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:20宽度:3.9 mm
Base Number Matches:1

LTC1329ACS8-50#TR 数据手册

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LTC1329-10/  
LTC1329-50/LTC1329A-50  
Micropower 8-Bit Current  
Output D/A Converter  
U
FEATURES  
DESCRIPTION  
The LTC®1329-10/LTC1329-50/LTC1329A-50 are  
micropower 8-bit current output D/A converters (DACs)  
with an output range of 0µA to 10µA for the LTC1329-10  
and 0µA to 50µA for the LTC1329-50/LTC1329A-50. The  
DAC current output can be biased from 15V to 2V or  
15Vto2.5Vin3.3Vand5Vsystems,respectively.Supply  
current is only 95µA for the LTC1329-50/LTC1329A-50  
and 75µA for LTC1329-10. A shutdown mode drops the  
supply current to 0.2µA.  
Guaranteed Precision Full-Scale DAC Output  
Current at 25°C:  
LTC1329A-50  
LTC1329-10  
LTC1329-50  
50µA ±1%  
10µA ±3%  
50µA ±3%  
Wide Output Voltage DC Compliance: 15V to 2.5V  
Wide Supply Range: 2.7V VCC 6.5V  
Supply Current in Shutdown: 0.2µA  
Low Supply Current: 75µA for LTC1329-10,  
95µA for LTC1329-50/LTC1329A-50  
Available in 8-Pin SO  
The LTC1329 can communicate with external circuitry by  
using one of three interface modes: standard 3-wire serial  
mode and two pulse modes. Upon power-up, the internal  
counter resets to 1000 0000B, the DAC output assumes  
midrange and the chip is configured in 3-wire or pulse  
mode depending on the signal level at CS.  
Triple ModeTM Interface Modes  
1. Standard 3-Wire Mode  
2. Pulse Mode 1-Wire Interface: Increment-Only  
3. Pulse Mode 2-Wire Interface: Increment/Decrement  
Can Read Back the 8-Bit DAC Value in 3-Wire Mode  
DAC Powers Up at Midrange  
In3-wiremode, thesystemMPUcanseriallytransfer8-bit  
data to and from the LTC1329. In pulse mode, the upper  
six bits of the DAC output can be programmed for incre-  
ment-only (1-wire interface) or increment/decrement  
(2-wire interface) operation depending on the signal level  
at DIN.  
DAC Contents Are Retained in Shutdown  
U
APPLICATIONS  
LCD Contrast Control  
Backlight Brightness Control  
Battery Charger Current/Voltage Adjustment  
Power Supply Voltage Adjustment  
LTC1329 is available in 8-pin SO packages.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Triple Mode is a trademark of Linear Technology Corporation.  
Trimmer Pot Elimination  
U
TYPICAL APPLICATION  
Digitally Controlled LCD Bias Generator  
V
IN  
5V  
L1*  
100µH  
1N4148  
200k  
0.1µF  
47Ω  
1
2
8
7
I
D
OUT  
OUT  
I
V
SW1  
LIM  
IN  
V
D
IN  
+
CC  
LT®1173  
GND  
47µF  
MPU  
(e.g., 8051)  
LTC1329-50  
FB  
+
6
3
4
SW2  
SHDN  
CLK  
GND  
CS  
4.7µF  
10.1k  
5
P1.2  
1N5818  
1N5818  
P1.1  
P1.0  
+
220k  
22µF  
V
*GOWANDA GA10-103K OR  
COILTRONICS CTX100-4  
OUT  
–22V at 40mA  
1329 TA01  
1

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