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LTC2451

更新时间： 2024-01-17 00:01:34
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
16页 217K
描述
Ultra-Tiny, 16-Bit ΔΣ ADC with I2C Interface

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中文翻译

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LTC2451 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：DFN包装说明：HVSON, SOLCC8,.08,20
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：6.95最大模拟输入电压：5.5 V
最小模拟输入电压：最长转换时间：0.023 µs
转换器类型：ADC, DELTA-SIGMAJESD-30 代码：R-PDSO-N8
JESD-609代码：e3长度：3 mm
最大线性误差 (EL)：0.0153%湿度敏感等级：1
模拟输入通道数量：1位数：16
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
输出位码：BINARY输出格式：SERIAL
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装等效代码：SOLCC8,.08,20封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：250
电源：3/5 V认证状态：Not Qualified
采样速率：0.00006 MHz座面最大高度：0.8 mm
子类别：Analog to Digital Converters标称供电电压：3 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：2 mmBase Number Matches：1

LTC2451 数据手册

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LTC2451  
Ultra-Tiny, 16-Bit ΔΣ ADC  
2
with I C Interface  
FEATURES  
DESCRIPTION  
The LTC®2451 is an ultra-tiny, 16-bit, analog-to-digital  
converter. The LTC2451 uses a single 2.7V to 5.5V sup-  
ply, accepts a single-ended analog input voltage and  
communicates through an I2C interface. The converter  
is available in an 8-pin, 3mm × 2mm DFN or TSOT-23  
package. It includes an integrated oscillator that does not  
require any external components. It uses a delta-sigma  
modulator as a converter core and provides single-cycle  
settling time for multiplexed applications. The LTC2451  
includesaproprietaryinputsamplingschemethatreduces  
the average input sampling current several orders of  
magnitude lower than conventional Δ∑ converters.  
n
GND to V Single-Ended Input Range  
CC  
n
0.02LSB RMS Noise  
n
2LSB INL, No Missing Codes  
1LSB Offset Error  
4LSB Full-Scale Error  
n
n
n
Programmable 30/60 Conversions per Second  
n
Single Conversion Settling Time for Multiplexed  
Applications  
n
Single-Cycle Operation with Auto Shutdown  
n
400μA Supply Current  
0.2μA Sleep Current  
n
n
Internal Oscillator—No External Components  
Required  
The LTC2451 is capable of up to 60 conversions per  
second and, due to the very large oversampling ratio,  
has extremely relaxed antialiasing requirements. In the  
30Hz mode, the LTC2451 includes continuous internal  
offset calibration algorithms which are transparent to the  
user, ensuring accuracy over time and over the operating  
n
Single Supply, 2.7V to 5.5V Operation  
2
n
2-Wire I C Interface  
n
Ultra-Tiny 3mm × 2mm DFN or TSOT-23 Package  
APPLICATIONS  
+
n
System Monitoring  
temperature range. The converter has external REF and  
–
–
n
Environmental Monitoring  
REF pins and the input voltage can range from V  
to  
REF  
+
+
–
n
Direct Temperature Measurements  
V
. If V  
= V and V  
= GND, the input voltage  
REF  
REF  
CC  
REF  
CC  
n
Instrumentation  
can range from GND to V .  
n
Industrial Process Control  
Following a single conversion, the LTC2451 can auto-  
matically enter sleep mode and reduce its power to less  
than 0.2μA. If the user reads the ADC once per second,  
the LTC2451 consumes an average of less than 50μW  
from a 2.7V supply.  
n
Data Acquisition  
n
Embedded ADC Upgrades  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Protected by U.S. Patents, including 6208279, 6411242, 7088280, 7164378.  
TYPICAL APPLICATION  
Integral Nonlinearity, VCC = 3V  
3
2
1
0
2.7V TO 5.5V  
10μF  
0.1μF  
+
V
REF  
CC  
SCL  
SDA  
1k  
2
2-WIRE I C  
INTERFACE  
IN LTC2451  
–
T
= 90°C  
A
SENSOR  
0.1μF  
REF  
GND  
–1  
–2  
–3  
T
= –45°C, 25°C  
A
2451 TA01a  
0
1
1.5  
2
2.5  
3
0.5  
2451 TA01b  
INPUT VOLTAGE (V)  
2451fd  
1
1234567...16

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