Datasheet > ADS1217

ADS1217

更新时间： 2024-02-07 00:33:43

品牌	Logo	应用领域
BB		转换器
页数	文件大小	规格书
28页	454K
描述
8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER

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ADS1217 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：	QFP
包装说明：	GREEN, PLASTIC, TQFP-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：	1.12	Samacsys Confidence：	3
Samacsys Status：	Released	Samacsys PartID：	154232
Samacsys Pin Count：	48	Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Quad Flat Packages	Samacsys Footprint Name：	PFB (S-PQFP-G48)
Samacsys Released Date：	2015-04-16 09:48:08	Is Samacsys：	N
最大模拟输入电压：	2.5 V	最小模拟输入电压：	-2.5 V
转换器类型：	ADC, DELTA-SIGMA	JESD-30 代码：	S-PQFP-G48
JESD-609代码：	e4	长度：	7 mm
最大线性误差 (EL)：	0.0012%	湿度敏感等级：	2
模拟输入通道数量：	8	位数：	24
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	输出格式：	SERIAL
封装主体材料：	PLASTIC/EPOXY	封装代码：	TFQFP
封装等效代码：	TQFP48,.35SQ	封装形状：	SQUARE
封装形式：	FLATPACK, THIN PROFILE, FINE PITCH	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：	0.00078 MHz	座面最大高度：	1.2 mm
子类别：	Other Converters	最小供电电压：	2.7 V
标称供电电压：	3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	GULL WING	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

ADS1217 数据手册

ADS1217

SBAS260B – MAY 2002 – REVISED OCTOBER 2004

8-Channel, 24-Bit

ANALOG-TO-DIGITAL CONVERTER

FEATURES

DESCRIPTION

● 24 BITS NO MISSING CODES

● INL: 0.0012% of FSR (max)

● FULL-SCALE INPUT: ±2V_REF

● PGA FROM 1 TO 128

The ADS1217 is a precision, wide dynamic range, delta-

sigma, Analog-to-Digital (A/D) converter with 24-bit resolu-

tion operating from 2.7V to 5.25V supplies. The delta-sigma,

A/D converter provides up to 24 bits of no missing code

performance and effective resolution of 22 bits.

● 22 BITS EFFECTIVE RESOLUTION

The eight input channels are multiplexed. Internal buffering

can be selected to provide a very high input impedance for

direct connection to transducers or low-level voltage signals.

Burnout current sources are provided that allow for the

detection of an open or shorted sensor. An 8-bit Digital-to-

Analog Converter (DAC) provides an offset correction with a

range of 50% of the FSR (Full-Scale Range).

(PGA = 1), 19 BITS (PGA = 128)

● SINGLE CYCLE SETTLING MODE

● PROGRAMMABLE DATA OUTPUT RATES

UP TO 1kHz

● ON-CHIP 1.25V/2.5V REFERENCE

● ON-CHIP CALIBRATION

The PGA (Programmable Gain Amplifier) provides selectable

gains of 1 to 128 with an effective resolution of 19 bits at a gain

of 128. The A/D conversion is accomplished with a 2nd-order,

delta-sigma modulator and programmable sinc filter. The

reference input is differential and can be used for ratiometric

measurements. The onboard current DACs operate indepen-

dently with the maximum current set by an external resistor.

● SPI COMPATIBLE

● POWER SUPPLY: 2.7V to 5.25V

● < 1mW POWER CONSUMPTION, V_DD= 3V

APPLICATIONS

The serial interface is SPI compatible. Eight bits of digital I/O

are also provided that can be used for input or output. The

ADS1217 is designed for high-resolution measurement appli-

cations in smart transmitters, industrial process control, weigh

scales, chromatography, and portable instrumentation.

● INDUSTRIAL PROCESS CONTROL

● LIQUID/GAS CHROMATOGRAPHY

● BLOOD ANALYSIS

● SMART TRANSMITTERS

● PORTABLE INSTRUMENTATION

● WEIGH SCALES

AGND AV_DD

R_DAC

V_REFOUT

V_RCAP

V_REF+V_REF–

X_IN

X_OUT

8-Bit

IDAC2

IDAC

Clock Generator

● PRESSURE TRANSDUCERS

Voltage

Reference

8-Bit

IDAC

IDAC1

Offset

DAC

PDWN

DYSNC

RESET

_IN0

A_IN

Registers

Program-

Controller

2nd-Order

Modulator

mable

Digital

Filter

MUX

BUF

PGA

RAM

POL

SCLK

D_IN

A_INCOM

Serial Interface

D_OUT

Digital I/O

Interface

DRDY

BUFEN

DV_DDDGND

D0 ... D7

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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

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与ADS1217相关器件

型号	品牌	获取价格	描述	数据表
ADS1217_14	TI	获取价格	8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER
ADS1217IPFBR	BB	获取价格	8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER
ADS1217IPFBR	TI	获取价格	8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER
ADS1217IPFBRG4	TI	获取价格	8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER
ADS1217IPFBT	TI	获取价格	8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER
ADS1217IPFBT	BB	获取价格	8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER
ADS1217IPFBTG4	TI	获取价格	8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER
ADS1217Y/250	TI	获取价格	IC,DATA ACQ SIGNAL CONDITIONER,8-CHANNEL,24-BIT,TQFP,48PIN,PLASTIC
ADS1218	BB	获取价格	8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER with FLASH Memory
ADS1218	TI	获取价格	8-Channel, 24-Bit ANALOG-TO-DIGITAL CONVERTER with FLASH Memory

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