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DDC114IRTCR PDF预览

DDC114IRTCR

更新时间: 2024-10-27 12:55:51
品牌 Logo 应用领域
德州仪器 - TI 转换器模数转换器
页数 文件大小 规格书
35页 823K
描述
Quad Current Input, 20-Bit Analog-To-Digital Converter

DDC114IRTCR 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:QFN
包装说明:QFN-48针数:48
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:6 weeks
风险等级:5.27Is Samacsys:N
最大模拟输入电压:5 V转换器类型:ADC, DELTA-SIGMA
JESD-30 代码:S-PQCC-N48JESD-609代码:e3
长度:7 mm最大线性误差 (EL):0.025%
湿度敏感等级:3模拟输入通道数量:4
位数:20功能数量:1
端子数量:48最高工作温度:85 °C
最低工作温度:-40 °C输出位码:BINARY, OFFSET 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:LCC48,.27SQ,20
封装形状:SQUARE封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260电源:3,5 V
认证状态:Not Qualified采样速率:0.003125 MHz
采样并保持/跟踪并保持:SAMPLE座面最大高度:0.9 mm
子类别:Analog to Digital Converters标称供电电压:5 V
表面贴装:YES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:QUAD
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7 mm
Base Number Matches:1

DDC114IRTCR 数据手册

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DDC114  
SBAS255C − JUNE 2004 − REVISED APRIL 2009  
Quad Current Input, 20-Bit  
Analog-To-Digital Converter  
FD EATURES  
DESCRIPTION  
SINGLE-CHIP SOLUTION TO DIRECTLY  
MEASURE FOUR LOW-LEVEL CURRENTS  
HIGH PRECISION, TRUE INTEGRATING  
FUNCTION  
The DDC114 is a 20-bit, quad channel, current-input  
analog-to-digital (A/D) converter. It combines both  
current-to-voltage and A/D conversion so that four  
low-level current output devices, such as photodiodes, can  
be directly connected to its inputs and digitized.  
D
D
D
D
D
D
D
INTEGRAL LINEARITY:  
0.01% of Reading 0.5ppm of FSR  
VERY LOW NOISE: 5.2ppm of FSR  
LOW POWER: 13.5mW/channel  
ADJUSTABLE DATA RATE: Up to 3.125kSPS  
PROGRAMMABLE FULL SCALE  
DAISY-CHAINABLE SERIAL INTERFACE  
For each of the four inputs, the DDC114 provides a  
dual-switched integrator front-end. This design allows for  
continuous current integration: while one integrator is  
being digitized by the onboard A/D converter, the other is  
integrating the input current. Adjustable full-scale ranges  
from 12pC to 350pC and adjustable integration times from  
50µs to 1s allow currents from fAs to µAs to be measured  
with outstanding precision. Low-level linearity is 0.5ppm  
of the full-scale range and noise is 5.2ppm of the full-scale  
range.  
AD PPLICATIONS  
CT SCANNER DAS  
D
D
D
PHOTODIODE SENSORS  
INFRARED PYROMETERS  
LIQUID/GAS CHROMATOGRAPHY  
Two modes of operation are provided. In Low-Power  
mode, total power dissipation is only 13.5mW per channel  
with a maximum data rate of 2.5kSPS. High-Speed mode  
supports data rates up to 3.125kSPS with a corresponding  
dissipation of 18mW per channel.  
Protected by US Patent #5841310  
AVDD  
VREF  
DVDD  
The DDC114 has a serial interface designed for  
daisy-chaining in multi-device systems. Simply connect  
the output of one device to the input of the next to create  
the chain. Common clocking feeds all the devices in the  
chain so that the digital overhead in a multi-DDC114  
system is minimal.  
CLK  
CONV  
IN1  
IN3  
RANGE0  
RANGE1  
RANGE2  
TEST  
Dual  
Switched  
Integrator  
∆Σ  
Modulator  
Digital  
Control  
Filter  
CLK_4X  
HISPD/LOPWR  
RESET  
The DDC114 is a single-supply device using a +5V analog  
supply and supporting a +2.7V to +5.25V digital supply.  
Operating over the industrial temperature range of −40°C  
to +85°C, the DDC114 is offered in a QFN-48 package.  
Dual  
Switched  
Integrator  
FORMAT  
DCLK  
DCLK  
DVALID  
DOUT  
DOUT  
DIN  
IN2  
IN4  
Dual  
Switched  
Integrator  
∆Σ  
Modulator  
Digital  
Filter  
Digital  
Input/Output  
Dual  
Switched  
Integrator  
DIN  
AGND  
DGND  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments  
semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢆꢇ ꢂꢈ ꢃ ꢉꢆꢉ ꢊꢋ ꢌꢍ ꢎ ꢏꢐ ꢑꢊꢍꢋ ꢊꢒ ꢓꢔ ꢎ ꢎ ꢕꢋꢑ ꢐꢒ ꢍꢌ ꢖꢔꢗ ꢘꢊꢓ ꢐꢑꢊ ꢍꢋ ꢙꢐ ꢑꢕꢚ ꢀꢎ ꢍꢙꢔ ꢓꢑꢒ  
ꢓ ꢍꢋ ꢌꢍꢎ ꢏ ꢑꢍ ꢒ ꢖꢕ ꢓ ꢊ ꢌꢊ ꢓ ꢐ ꢑꢊ ꢍꢋꢒ ꢖ ꢕꢎ ꢑꢛꢕ ꢑꢕ ꢎ ꢏꢒ ꢍꢌ ꢆꢕꢜ ꢐꢒ ꢇꢋꢒ ꢑꢎ ꢔꢏ ꢕꢋꢑ ꢒ ꢒꢑ ꢐꢋꢙ ꢐꢎ ꢙ ꢝ ꢐꢎ ꢎ ꢐ ꢋꢑꢞꢚ  
ꢀꢎ ꢍ ꢙꢔꢓ ꢑ ꢊꢍ ꢋ ꢖꢎ ꢍ ꢓ ꢕ ꢒ ꢒ ꢊꢋ ꢟ ꢙꢍ ꢕ ꢒ ꢋꢍꢑ ꢋꢕ ꢓꢕ ꢒꢒ ꢐꢎ ꢊꢘ ꢞ ꢊꢋꢓ ꢘꢔꢙ ꢕ ꢑꢕ ꢒꢑꢊ ꢋꢟ ꢍꢌ ꢐꢘ ꢘ ꢖꢐ ꢎ ꢐꢏ ꢕꢑꢕ ꢎ ꢒꢚ  
Copyright 2004−2009, Texas Instruments Incorporated  
www.ti.com  

DDC114IRTCR 替代型号

型号 品牌 替代类型 描述 数据表
DDC114IRTCT TI

完全替代

Quad Current Input, 20-Bit Analog-To-Digital Converter

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