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LTC2440CGN#TR PDF预览

LTC2440CGN#TR

更新时间： 2024-11-11 20:11:23
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
28页 351K
描述
LTC2440 - 24-Bit High Speed Differential Delta Sigma ADC with Selectable Speed/Resolution; Package: SSOP; Pins: 16; Temperature Range: 0°C to 70°C

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中文翻译

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LTC2440CGN#TR 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：SSOP包装说明：SSOP, SSOP16,.25
针数：16Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.74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：A/D CONVERTERJESD-30 代码：R-PDSO-G16
JESD-609代码：e0长度：4.8895 mm
最大线性误差 (EL)：0.0015%湿度敏感等级：1
模拟输入通道数量：1位数：24
功能数量：1端子数量：16
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：SSOP
封装等效代码：SSOP16,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, SHRINK PITCH峰值回流温度（摄氏度）：235
电源：5 V认证状态：Not Qualified
采样速率：0.35 MHz座面最大高度：1.75 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：GULL WING端子节距：0.635 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.899 mmBase Number Matches：1

LTC2440CGN#TR 数据手册

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LTC2440  
24-Bit High Speed  
Differential Δ∑ ADC with  
Selectable Speed/Resolution  
DESCRIPTION  
FEATURES  
The LTC®2440 is a high speed 24-bit No Latency Δ∑TM  
ADC with 5ppm INL and 5μV offset. It uses proprietary  
delta-sigmaarchitectureenablingvariablespeedandreso-  
lution with no latency. Ten speed/resolution combinations  
n
Up to 3.5kHz Output Rate  
n
Selectable Speed/Resolution  
n
2μV  
Noise at 880Hz Output Rate  
RMS  
RMS  
200nV  
n
Noise at 6.9Hz Output Rate with  
Simultaneous 50/60Hz Rejection  
0.0005% INL, No Missing Codes  
(6.9Hz/200nV  
to 3.5kHz/25μV ) are programmed  
RMS  
RMS  
n
n
n
n
through a simple serial interface. Alternatively, by tying a  
singlepinHIGHorLOW,afast(880Hz/2μV )orultralow  
Autosleep Enables 20μA Operation at 6.9Hz  
RMS  
<5μV Offset (4.5V < V < 5.5V, –40°C to 85°C)  
noise (6.9Hz, 200nV  
, 50/60Hz rejection) speed/reso-  
CC  
RMS  
Differential Input and Differential Reference with  
lution combination can be easily selected. The accuracy  
(offset, full-scale, linearity, drift) and power dissipation  
are independent of the speed selected. Since there is no  
latency, a speed/resolution change may be made between  
conversions with no degradation in performance.  
GND to V Common Mode Range  
CC  
n
No Latency, Each Conversion is Accurate Even After  
an Input Step  
n
n
n
Internal Oscillator—No External Components  
Pin Compatible with the LTC2410  
24-Bit ADC in Narrow 16-Lead SSOP Package  
Following each conversion cycle, the LTC2440 automati-  
cally enters a low power sleep state. Power dissipation  
may be reduced by increasing the duration of this sleep  
state.Forexample,runningatthe3.5kHzconversionspeed  
but reading data at a 100Hz rate draws 240μA average  
current (1.1mW) while reading data at a 7Hz output rate  
draws only 25μA (125μW).The LTC2440 communicates  
through a flexible 3-wire or 4-wire digital interface that is  
compatible with the LTC2410 and is available in a narrow  
16-lead SSOP package.  
APPLICATIONS  
n
High Speed Multiplexing  
n
Weight Scales  
n
Auto Ranging 6-Digit DVMs  
n
Direct Temperature Measurement  
n
High Speed Data Acquisition  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
No Latency Δ∑ is a trademark of Linear Technology Corporation. All other trademarks are  
the property of their respective owners.  
TYPICAL APPLICATION  
Speed vs RMS Noise  
100  
Simple 24-Bit 2-Speed Acquisition System  
V
V
V
= 5V  
CC  
= 5V  
IN  
REF  
+
–
4.5V TO 5.5V  
= V = 0V  
IN  
10  
1
V
BUSY  
CC  
LTC2440  
2μV AT 880Hz  
+
f
REF  
O
REFERENCE VOLTAGE  
0.1V TO V  
4
–
CC  
200nV AT 6.9Hz  
(50/60Hz REJECTION)  
REF  
SCK  
SDO  
CS  
V
CC  
3-WIRE  
SPI INTERFACE  
+
IN  
ANALOG INPUT  
–0.5V TO 0.5V  
6.9Hz, 200nV NOISE,  
50/60Hz REJECTION  
–
REF  
REF  
IN  
10-SPEED SERIAL  
PROGRAMMABLE  
SDI  
0.1  
EXT  
GND  
880Hz OUTPUT RATE,  
2μV NOISE  
1
10  
100  
1000  
10000  
CONVERSION RATE (Hz)  
2440 TA01  
2440 TA01  
2440 TA02  
2440fd  
1
1234567...28

中文翻译

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