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LTC2435IGN PDF预览

LTC2435IGN

更新时间： 2024-11-12 22:13:31
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
40页 463K
描述
20-Bit No Latency ADCs with Differential Input and Differential Reference

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中文翻译

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LTC2435IGN 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：5.08最大模拟输入电压：2.75 V
最小模拟输入电压：-2.75 V最长转换时间：81900 µs
转换器类型：ADC, DELTA-SIGMAJESD-30 代码：R-PDSO-G16
JESD-609代码：e0长度：4.8895 mm
最大线性误差 (EL)：0.002%湿度敏感等级：1
模拟输入通道数量：1位数：20
功能数量：1端子数量：16
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：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：3/5 V认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Analog to Digital Converters
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL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：20
宽度：3.899 mmBase Number Matches：1

LTC2435IGN 数据手册

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LTC2435/LTC2435-1  
20-Bit No Latency ∆ΣTM  
ADCs with Differential Input and  
Differential Reference  
U
DESCRIPTIO  
FEATURES  
The LTC®2435/2435-1 are 2.7V to 5.5V micropower  
20-bit differential ∆Σ analog to digital converters with  
integrated oscillator, 3ppm INL and 0.8ppm RMS noise.  
Theyusedelta-sigmatechnologyandprovidesinglecycle  
settling time for multiplexed applications. Through a  
single pin, the LTC2435 can be configured for better than  
110dB input differential mode rejection at 50Hz or 60Hz  
±2%, oritcanbedrivenbyanexternaloscillatorforauser  
defined rejection frequency. The LTC2435-1 can be con-  
figured for better than 87dB input differential mode rejec-  
tion over the range of 49Hz to 61.2Hz (50Hz and 60Hz  
±2% simultaneously). The internal oscillator requires no  
external frequency setting components.  
■
2× Speed Up Version of the LTC2430: 15Hz Output  
Rate, 60Hz Notch—LTC2435; 13.75Hz Output Rate,  
Simultaneous 50Hz/60Hz Notch—LTC2435-1  
Differential Input and Differential Reference with  
GND to VCC Common Mode Range  
3ppm INL, No Missing Codes  
■
■
■
■
■
10ppm Gain Error  
0.8ppm Noise  
Single Conversion Settling Time for Multiplexed  
Applications  
Internal Oscillator—No External Components  
Required  
Single Supply 2.7V to 5.5V Operation  
Low Supply Current (200µA,4µA in Auto Sleep)  
20-Bit ADC in Narrow SSOP-16 Package  
(SO-8 Footprint)  
■
■
■
■
The converters accept any external differential reference  
voltage from 0.1V to VCC for flexible ratiometric and  
remote sensing measurement configurations. The full-  
scale differential input range is from –0.5VREF to 0.5VREF  
.
U
The reference common mode voltage, VREFCM, and the  
input common mode voltage, VINCM, may be indepen-  
dently set anywhere within the GND to VCC range of the  
LTC2435/LTC2435-1. The DC common mode input rejec-  
tion is better than 120dB.  
APPLICATIO S  
■
Direct Sensor Digitizer  
■
Weight Scales  
■
Direct Temperature Measurement  
Gas Analyzers  
Strain Gage Transducers  
Instrumentation  
Data Acquisition  
Industrial Process Control  
6-Digit DVMs  
■
The LTC2435/LTC2435-1 communicate through a flexible  
3-wire digital interface which is compatible with SPI and  
MICROWIRETM protocols.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
No Latency ∆Σ is a trademark of Linear Technology Corporation.  
MICROWIRE is a trademark of National Semiconductor Corporation.  
Protected by U.S. Patents including 6140950, 6169506.  
■
■
■
■
■
U
Integral Nonlinearity vs Input  
TYPICAL APPLICATIO S  
10  
8
6
2.7V TO 5.5V  
V
CC  
1µF  
4
2
= INTERNAL OSC/50Hz REJECTION (LTC2435)  
2
14  
T
T
= 25°C  
= EXTERNAL CLOCK SOURCE  
= INTERNAL OSC/60Hz REJECTION (LTC2435)  
= INTERNAL 50Hz/60Hz REJECTION (LTC2435-1)  
A
V
F
CC  
LTC2435/  
O
T
= 85°C  
A
0
LTC2435-1  
–2  
–4  
–6  
–8  
–10  
3
4
= –45°C  
+
A
13  
REFERENCE  
VOLTAGE  
REF  
REF  
SCK  
–
0.1V TO V  
F
= GND  
CC  
O
3-WIRE  
SPI INTERFACE  
V
V
V
= 5V  
CC  
REF  
INCM  
5
6
12  
11  
+
ANALOG INPUT RANGE  
= 5V  
= V  
IN  
SDO  
CS  
–0.5V  
TO 0.5V  
= 2.5V  
–0.5  
REF  
REF  
INCM  
–
IN  
1, 7, 8, 9, 10, 15, 16  
–2.5  
–1.5  
0.5  
1.5  
2.5  
GND  
2435 TA01  
INPUT VOLTAGE (V)  
2435 G04  
24351fa  
1
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中文翻译

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