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

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技术参数
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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：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	6 weeks
风险等级：	5.27	Is 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-N48	JESD-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

DDC114

SBAS255C − JUNE 2004 − REVISED APRIL 2009

Quad Current Input, 20-Bit

Analog-To-Digital Converter

F_DEATURES

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.

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.

A_DPPLICATIONS

CT SCANNER DAS

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

DVALID

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

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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

与DDC114IRTCR相关器件

型号	品牌	获取价格	描述	数据表
DDC114IRTCT	TI	获取价格	Quad Current Input, 20-Bit Analog-To-Digital Converter
DDC114TH	DIODES	获取价格	NPN PRE-BIASED SMALL SIGNAL SOT-563 DUAL SURFACE MOUNT TRANSISTOR
DDC114TH-7	DIODES	获取价格	NPN PRE-BIASED SMALL SIGNAL SOT-563 DUAL SURFACE MOUNT TRANSISTOR
DDC114TK	DIODES	获取价格	NPN PRE-BIASED SMALL SIGNAL SOT-26 DUAL SURFACE MOUNT TRANSISTOR
DDC114TK-7	DIODES	获取价格	NPN PRE-BIASED SMALL SIGNAL SOT-26 DUAL SURFACE MOUNT TRANSISTOR
DDC114TK-7-F	DIODES	获取价格	暂无描述
DDC114TU	DIODES	获取价格	NPN PRE-BIASED SMALL SIGNAL SOT-363 DUAL SURFACE MOUNT TRANSISTOR
DDC114TU-13	DIODES	获取价格	Small Signal Bipolar Transistor, 0.1A I(C), 50V V(BR)CEO, 2-Element, NPN, Silicon, PLASTIC
DDC114TU-13-F	DIODES	获取价格	Transistor
DDC114TU-7	DIODES	获取价格	NPN PRE-BIASED SMALL SIGNAL SOT-363 DUAL SURFACE MOUNT TRANSISTOR

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