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LTC2445CUHF PDF预览

LTC2445CUHF

更新时间： 2024-11-11 03:27:19
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
28页 258K
描述
24-Bit High Speed 8-/16-Channel ADCs with Selectable Speed/Resolution

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中文翻译

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LTC2445CUHF 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：QFN包装说明：HVQCCN, LCC38,.2X.28,20
针数：38Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.09最大模拟输入电压：2.75 V
最小模拟输入电压：-0.05 V最长转换时间：170000 µs
转换器类型：ADC, DELTA-SIGMAJESD-30 代码：R-PQCC-N38
JESD-609代码：e0长度：7 mm
湿度敏感等级：1模拟输入通道数量：8
位数：24功能数量：1
端子数量：38最高工作温度：70 °C
最低工作温度：输出位码：BINARY
输出格式：SERIAL封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装等效代码：LCC38,.2X.28,20
封装形状：RECTANGULAR封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：235电源：5 V
认证状态：Not Qualified座面最大高度：0.8 mm
子类别：Analog to Digital Converters标称供电电压：5 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：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：20
宽度：5 mmBase Number Matches：1

LTC2445CUHF 数据手册

 浏览型号LTC2445CUHF的Datasheet PDF文件第2页浏览型号LTC2445CUHF的Datasheet PDF文件第3页浏览型号LTC2445CUHF的Datasheet PDF文件第4页浏览型号LTC2445CUHF的Datasheet PDF文件第5页浏览型号LTC2445CUHF的Datasheet PDF文件第6页浏览型号LTC2445CUHF的Datasheet PDF文件第7页 
LTC2444/LTC2445/  
LTC2448/LTC2449  
24-Bit High Speed  
8-/16-Channel ∆Σ ADCs with  
Selectable Speed/Resolution  
U
FEATURES  
DESCRIPTIO  
The LTC®2444/LTC2445/LTC2448/LTC2449 are 8-/16-  
channel (4-/8-differential) high speed 24-bit No Latency  
∆ΣTM ADCs. They use a proprietary delta-sigma architec-  
ture enabling variable speed/resolution. Through a simple  
4-wire serial interface, ten speed/resolution combinations  
6.9Hz/280nVRMS to 3.5kHz/25µVRMS (4kHz with external  
oscillator) can be selected with no latency between con-  
version results or shift in DC accuracy (offset, full-scale,  
linearity, drift). Additionally, a 2X speed mode can be  
selected enabling output rates up to 7kHz (8kHz if an  
external oscillator is used) with one cycle latency.  
■
Up to 8 Differential or 16 Single-Ended Input  
Channels  
■
Up to 8kHz Output Rate  
■
Up to 4kHz Multiplexing Rate  
■
Selectable Speed/Resolution  
■
2µVRMS Noise at 1.76kHz Output Rate  
■
200nVRMS Noise at 13.8Hz Output Rate with  
Simultaneous 50/60Hz Rejection  
■
Guaranteed Modulator Stability and Lock-Up  
Immunity for any Input and Reference Conditions  
■
0.0005% INL, No Missing Codes  
■
Autosleep Enables 20µA Operation at 6.9Hz  
■
<5µV Offset (4.5V < VCC < 5.5V, –40°C to 85°C)  
Any combination of single-ended or differential inputs can  
beselectedwithacommonmodeinputrangefromground  
to VCC, independent of VREF. While operating in the 1X  
speed mode the first conversion following a new speed,  
resolution, or channel selection is valid. Since there is no  
settling time between conversions, all 8 differential chan-  
nels can be scanned at a rate of 500Hz. At the conclusion  
of each conversion, the converter is internally reset elimi-  
nating any memory effects between successive conver-  
sions and assuring stability of the high order delta-sigma  
modulator.  
■
Differential Input and Differential Reference with  
GND to VCC Common Mode Range  
■
No Latency Mode, Each Conversion is Accurate Even  
After a New Channel is Selected  
■
Internal Oscillator—No External Components  
■
LTC2445/LTC2449 Include MUXOUT/ADCIN for  
External Buffering or Gain  
■
Tiny QFN 5mm xU7mm Package  
APPLICATIO S  
■
High Speed Multiplexing  
■
Weight Scales  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
No Latency ∆Σ is a trademark of Linear Technology Corporation.  
■
Auto Ranging 6-Digit DVMs  
■
Direct Temperature Measurement  
■
High Speed Data Acquisition  
U
TYPICAL APPLICATIO  
LTC2444/LTC2448  
Simple 24-Bit Variable Speed Data Acquisition System  
Speed vs RMS Noise  
4.5V TO 5.5V  
100  
10  
1
V
V
V
= 5V  
CC  
= 5V  
IN  
REF  
1µF  
+
–
= V = 0V  
IN  
+
REF  
V
2X SPEED MODE  
CC  
CH0  
CH1  
= EXTERNAL OSCILLATOR  
NO LATENCY MODE  
= INTERNAL OSCILLATOR  
F
O
(SIMULTANEOUS 50Hz/60Hz  
REJECTION AT 6.9Hz OUTPUT RATE)  
•
•
•
2.8µV AT 880Hz  
CH7  
CH8  
SDI  
SCK  
SDO  
CS  
16-CHANNEL  
MUX  
VARIABLE SPEED/  
RESOLUTION  
DIFFERENTIAL  
24-BIT ∆Σ ADC  
280nV AT 6.9Hz  
(50/60Hz REJECTION)  
+
–
4-WIRE  
SPI INTERFACE  
THERMOCOUPLE  
•
•
•
CH15  
COM  
0.1  
–
REF  
1
10  
100  
1000  
10000  
CONVERSION RATE (Hz)  
GND  
LTC2448  
2440 TA02  
2444 TA01  
sn2444589 2444589fs  
1
1234567...28

中文翻译

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LTC2445CUHF 替代型号

型号 品牌 替代类型 描述 数据表
LTC2445IUHF#TR Linear

完全替代

 LTC2445 - 24-Bit High Speed 8-/16-Channel Delta Sigma ADCs with Selectable Speed/Resolutio

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 		LTC2445 - 24-Bit High Speed 8-/16-Channel Delta Sigma ADCs with Selectable Speed/Resolutio
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LTC2445IUHF#TR Linear

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LTC2445IUHF#TRPBF Linear

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