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LTC2424IG

更新时间： 2024-09-24 22:55:51
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
28页 320K
描述
4-/8-Channel 20-Bit uPower No Latency ADCs

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中文翻译

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LTC2424IG 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, SSOP28,.3
针数：28Reach 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：3.7125 V
最小模拟输入电压：-0.4125 V最长转换时间：163440 µs
转换器类型：ADC, DELTA-SIGMAJESD-30 代码：R-PDSO-G28
JESD-609代码：e0长度：10.2 mm
湿度敏感等级：1模拟输入通道数量：4
位数：20功能数量：1
端子数量：28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：SSOP28,.3
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：2 mm
子类别：Analog to Digital Converters标称供电电压：3.3 V
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：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：20
宽度：5.3 mmBase Number Matches：1

LTC2424IG 数据手册

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Final Electrical Specifications  
LTC2424/LTC2428  
4-/8-Channel 20-Bit µPower  
No Latency ∆ΣTM ADCs  
March 2000  
U
FEATURES  
DESCRIPTIO  
The LTC®2424/LTC2428 are 4-/8-channel 2.7V to 5.5V  
micropower 20-bit A/D converters with an integrated  
oscillator, 8ppm INL and 1.2ppm RMS noise. They use  
delta-sigma technology and provide single cycle digital  
filter settling time (no latency delay) for multiplexed  
applications. The first conversion after the channel is  
changedisalwaysvalid.ThroughasinglepintheLTC2424/  
LTC2428 can be configured for better than 110dB rejec-  
tion at 50Hz or 60Hz ±2%, or can be driven by an external  
oscillator for a user defined rejection frequency in the  
range 1Hz to 800Hz. The internal oscillator requires no  
external frequency setting components.  
■
Pin Compatible 4-/8-Channel 20-Bit ADCs  
■
8ppm INL, No Missing Codes at 20 Bits  
■
4ppm Full-Scale Error and 0.5ppm Offset  
■
1.2ppm Noise  
■
Digital Filter Settles in a Single Cycle. Each  
Conversion is Accurate, Even After Changing  
Channels  
■
Fast Mode: 16-Bit Noise, 12-Bit TUE at 100sps  
■
Internal Oscillator—No External Components  
Required  
■
110dB Min, 50Hz/60Hz Notch Filter  
■
Reference Input Voltage: 0.1V to VCC  
■
Live Zero—Extended Input Range Accommodates  
The converters accept any external reference voltage from  
0.1VtoVCC. Withtheirextendedinputconversionrangeof  
–12.5% VREF to 112.5% VREF (VREF = FSSET – ZSSET) the  
LTC2424/LTC2428 smoothly resolve the offset and  
overrange problems of preceding sensors or signal con-  
ditioning circuits.  
12.5% Overrange and Underrange  
Single Supply 2.7V to 5.5V Operation  
■
■
Low Supply Current (200µA) and Auto Shutdown  
Can Be Interchanged with 24-Bit LTC2404/LTC2408  
■
if ZSSET Pin is Grounded  
U
APPLICATIO S  
The LTC2424/LTC2428 communicate through a flexible  
4-wire digital interface which is compatible with SPI and  
MICROWIRETM protocols.  
■
Weight Scales  
■
Direct Temperature Measurement  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
■
Gas Analyzers  
Strain-Gage Transducers  
Instrumentation  
Data Acquisition  
Industrial Process Control  
4-Digit DVMs  
No Latency ∆Σ is a trademark of Linear Technology Corporation.  
MICROWIRE is a trademark of National Semiconductor Corporation.  
■
■
■
■
■
U
TYPICAL APPLICATIO  
Total Unadjusted Error vs Output Code  
10  
0.1V TO V  
CC  
2.7V TO 5.5V  
8
6
7
4
3
2, 8  
1µF  
MUXOUT  
ADCIN  
FS  
SET CC  
V
SERIAL DATA LINK  
MICROWIRE AND  
SPI COMPATABLE  
9
CH0  
4
23  
20  
25  
19  
21  
24  
10 CH1  
11 CH2  
12 CH3  
13 CH4*  
14 CH5*  
15 CH6*  
17 CH7*  
CSADC  
2
CSMUX  
SCK  
0
ANALOG  
INPUTS  
20-BIT  
∆∑ ADC  
4-/8-CHANNEL  
MUX  
–2  
–4  
–6  
–8  
–10  
+
MPU  
CLK  
–0.12V  
TO  
REF  
1.12V  
D
IN  
REF  
–
SDO  
V
CC  
LTC2424/LTC2428  
= INTERNAL OSC/50Hz REJECTION  
= EXTERNAL CLOCK SOURCE  
= INTERNAL OSC/60Hz REJECTION  
5
ZS  
SET  
26  
F
O
GND  
0
8,338,608  
OUTPUT CODE (DECIMAL)  
16,777,215  
24248 TA01  
1, 6, 16, 18, 22, 27, 28  
*THESE PINS ARE NO CONNECTS ON THE LTC2404  
24248 TA02  
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.  
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-  
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.  
1
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中文翻译

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