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LTC1289BIJ PDF预览

LTC1289BIJ

更新时间: 2024-09-24 22:25:43
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
28页 485K
描述
3 Volt Single Chip 12-Bit Data Acquisition System

LTC1289BIJ 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:DIP
包装说明:DIP, DIP20,.3针数:20
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.72
最大模拟输入电压:3.05 V最小模拟输入电压:-3.05 V
最长转换时间:26 µs转换器类型:ADC, SUCCESSIVE APPROXIMATION
JESD-30 代码:R-GDIP-T20JESD-609代码:e0
最大线性误差 (EL):0.0122%标称负供电电压:-3 V
模拟输入通道数量:8位数:12
功能数量:1端子数量:20
最高工作温度:85 °C最低工作温度:-40 °C
输出位码:2'S COMPLEMENT BINARY输出格式:SERIAL
封装主体材料:CERAMIC, GLASS-SEALED封装代码:DIP
封装等效代码:DIP20,.3封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):NOT SPECIFIED
电源:3/+-3 V认证状态:Not Qualified
采样速率:0.025 MHz采样并保持/跟踪并保持:SAMPLE
座面最大高度:5.08 mm子类别:Analog to Digital Converters
标称供电电压:3 V表面贴装:NO
技术:CMOS温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.62 mm

LTC1289BIJ 数据手册

 浏览型号LTC1289BIJ的Datasheet PDF文件第2页浏览型号LTC1289BIJ的Datasheet PDF文件第3页浏览型号LTC1289BIJ的Datasheet PDF文件第4页浏览型号LTC1289BIJ的Datasheet PDF文件第5页浏览型号LTC1289BIJ的Datasheet PDF文件第6页浏览型号LTC1289BIJ的Datasheet PDF文件第7页 
LTC1289  
3 Volt Single Chip 12-Bit  
Data Acquisition System  
U
DESCRIPTIO  
EATURE  
S
F
Single Supply 3.3V or ±3.3V Operation  
Software Programmable Features  
Unipolar/Bipolar Conversions  
4 Differential/8 Single-Ended Inputs  
Variable Data Word Length  
Power Shutdown  
Built-In Sample and Hold  
Direct 4-Wire Interface to Most MPU Serial Ports  
and all MPU Parallel Ports  
25kHz Maximum Throughput Rate  
The LTC1289 is a 3V data acquisition component which  
contains a serial I/O successive approximation A/D con-  
verter. The device specifications are guaranteed at a  
supply voltage of 2.7V. It uses LTCMOSTM switched ca-  
pacitor technology to perform a 12-bit unipolar, or 11-bit  
plus sign bipolar A/D conversion. The 8 channel input  
multiplexer can be configured for either single-ended or  
differential inputs (or combinations thereof). An on-chip  
sample and hold is included for all single-ended input  
channels. When the LTC1289 is idle it can be powered  
down in applications where low power consumption is  
desired.  
U
KEY SPECIFICATIO S  
The serial I/O is designed to be compatible with industry  
standardfullduplexserialinterfaces. ItallowseitherMSB-  
or LSB- first data and automatically provides 2’s comple-  
ment output coding in the bipolar mode. The output data  
word can be programmed for a length of 8, 12 or 16 bits.  
This allows easy interface to shift registers and a variety of  
processors.  
Minimum Guaranteed Supply Voltage ............... 2.7V  
Resolution ...................................................... 12 Bits  
Fast Conversion Time .............. 26µs Max Over Temp  
Low Supply Currents ...................................... 1.0mA  
LTCMOSTM is a trademark of Linear Technology Corporation  
U
O
TYPICAL APPLICATI  
Single Cell 3V 12-Bit Data Acquisition System  
+3V  
CH0  
V
CC  
3V  
+
1N4148  
22µF  
CH1  
CH2  
CH3  
CH4  
CH5  
CH6  
CH7  
COM  
ACLK  
SCLK  
LITHIUM  
10k  
TANTALUM  
+
BOOST  
V
10Ω  
TO AND  
FROM  
MPU  
1/4 LTC1079  
D
+
IN  
CAP  
OSC  
LV  
LTC1044  
+
D
+
OUT  
LTC1289  
GND  
1N4148  
1N5817  
10µF  
10µF  
CS  
CAP  
V
OUT  
–3V  
+
REF  
–3V  
+
LT1004-1.2  
22µF  
22µF  
+
REF  
FOR OVERVOLTAGE PROTECTION ON  
ONLY ONE CHANNEL LIMIT THE INPUT  
CURRENT TO 15mA. FOR MORE THAN  
ONE CHANNEL LIMIT THE INPUT  
CURRENT TO 7mA PER CHANNEL AND  
28mA FOR ALL CHANNELS.  
CONVERSION RESULTS ARE NOT VALID  
V
DGND  
AGND  
0.1µF  
WHEN THE SELECTED OR ANY OTHER  
LTC1289 TA01  
CHANNEL IS OVERVOLTAGED (V < V  
IN  
or V > V ).  
IN CC  
1

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