ADS1234IPW

更新时间： 2024-11-23 06:36:23

品牌	Logo	应用领域
德州仪器 - TI		转换器模数转换器传感器光电二极管 PC
页数	文件大小	规格书
34页	630K
描述
24-Bit Analog-to-Digital Converter For Bridge Sensors

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ADS1234IPW 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：	SSOP
包装说明：	TSSOP-28	针数：	28
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	1 week
风险等级：	1.11	Samacsys Confidence：	3
Samacsys Status：	Released	Samacsys PartID：	303986
Samacsys Pin Count：	28	Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Small Outline Packages	Samacsys Footprint Name：	tssop
Samacsys Released Date：	2019-09-26 12:57:59	Is Samacsys：	N
最大模拟输入电压：	5.4 V	最小模拟输入电压：	-0.1 V
转换器类型：	ADC, DELTA-SIGMA	JESD-30 代码：	R-PDSO-G28
JESD-609代码：	e4	长度：	9.7 mm
最大线性误差 (EL)：	0.001%	湿度敏感等级：	2
模拟输入通道数量：	4	位数：	24
功能数量：	1	端子数量：	28
最高工作温度：	105 °C	最低工作温度：	-40 °C
输出位码：	2'S COMPLEMENT BINARY	输出格式：	SERIAL
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装等效代码：	TSSOP28,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
电源：	5 V	认证状态：	Not Qualified
采样速率：	0.00008 MHz	座面最大高度：	1.2 mm
子类别：	Analog to Digital Converters	最大压摆率：	2.5 mA
最小供电电压：	2.7 V	标称供电电压：	5 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：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	4.4 mm
Base Number Matches：	1

ADS1234IPW 数据手册

ADS1232

ADS1234

www.ti.com

SBAS350F–JUNE 2005–REVISED FEBRUARY 2008

24-Bit Analog-to-Digital Converter

For Bridge Sensors

FEATURES

DESCRIPTION

•

Complete Front-End for Bridge Sensors

The ADS1232 and ADS1234 are precision 24-bit

analog-to-digital converters (ADCs). With an onboard,

low-noise programmable gain amplifier (PGA),

precision delta-sigma ADC and internal oscillator, the

ADS1232/4 provide a complete front-end solution for

bridge sensor applications including weigh scales,

strain gauges and pressure sensors.

•

Up to 23.5 Effective Bits

Onboard, Low-Noise PGA

RMS Noise:

17nV at 10SPS (PGA = 128)

44nV at 80SPS (PGA = 128)

•

19.2-Bit Noise-Free Resolution at Gain = 64

The input multiplexer accepts either two (ADS1232)

or four (ADS1234) differential inputs. The ADS1232

also includes an onboard temperature sensor to

monitor ambient temperature. The onboard, low-noise

PGA has a selectable gain of 1, 2, 64, or 128

supporting a full-scale differential input of ±2.5V,

±1.25V, ±39mV, or ±19.5mV. The delta-sigma ADC

has 23.5-bit effective resolution and is comprised of a

3rd-order modulator and 4th-order digital filter. Two

data rates are supported: 10SPS (with both 50Hz and

60Hz rejection) and 80SPS. The ADS1232/4 can be

clocked externally using an oscillator or a crystal.

There is also an internal oscillator available that

requires no external components. Offset calibration is

performed on-demand and the ADS1232/4 can be

put in a low-power standby mode or shut off

completely in power-down mode. All of the features of

the ADS1232/4 are operated through simple

pin-driven control. There are no digital registers to

program in order to simplify software development.

Data are output over an easily-isolated serial

interface that connects directly to the MSP430 and

other microcontrollers.

Over 100dB Simultaneous 50Hz and 60Hz

Rejection

•

Flexible Clocking:

Low-Drift Onboard Oscillator (±3%)

Optional External Crystal

•

Selectable Gains of 1, 2, 64, and 128

Easy Ratiometric Measurements–

External Voltage Reference up to 5V

•

Selectable 10SPS or 80SPS Data Rates

Two-Channel Differential Input with Built-In

Temperature Sensor (ADS1232)

•

Four-Channel Differential Input (ADS1234)

Simple Serial Digital Interface

Supply Range: 2.7V to 5.3V

–40°C to +105°C Temperature Range

APPLICATIONS

•

Weigh Scales

Strain Gauges

Pressure Sensors

Industrial Process Control

The ADS1232 is available in a TSSOP-24 package

and the ADS1234 is in a TSSOP-28. Both are fully

specified from -40°C to +105°C.

CAP

REFP REFN

DVDD

AVDD

GAIN [1:0]

PDWN

Gain =

AINP1

AINN1

1, 2, 64, or 128

AINP2

AINN2

DRDY/DOUT

SCLK

Input

Mux

PGA

DS ADC

AINP3

AINN3

Internal Oscillator

External Oscillator

ADS1234

SPEED

AINP4

AINN4

Only

A1/TEMP⁽¹⁾A0

AGND

CAP

CLKIN/XTAL1 XTAL2

DGND

NOTE: (1) A1 for ADS1234, TEMP for ADS1232.

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 the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...34

中文翻译

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ADS1234IPW 替代型号

型号	品牌	替代类型	描述	数据表
ADS1234IPWR	TI	类似代替	24-Bit Analog-to-Digital Converter For Bridge Sensors
ADS1234IPWG4	TI	类似代替	24-Bit Analog-to-Digital Converter For Bridge Sensors

与ADS1234IPW相关器件

型号	品牌	获取价格	描述	数据表
ADS1234IPWG4	TI	获取价格	24-Bit Analog-to-Digital Converter For Bridge Sensors
ADS1234IPWR	TI	获取价格	24-Bit Analog-to-Digital Converter For Bridge Sensors
ADS1234IPWRG4	TI	获取价格	24-Bit Analog-to-Digital Converter For Bridge Sensors
ADS1234IPWT	TI	获取价格	IC,A/D CONVERTER,SINGLE,24-BIT,TSSOP,28PIN
ADS1235	TI	获取价格	用于桥式传感器且具有 PGA 和交流激励的汽车类 24 位、7.2kSPS、3 通道差动、
ADS1235IRHBR	TI	获取价格	用于桥式传感器且具有 PGA 和交流激励的汽车类 24 位、7.2kSPS、3 通道差动、
ADS1235IRHBT	TI	获取价格	用于桥式传感器且具有 PGA 和交流激励的汽车类 24 位、7.2kSPS、3 通道差动、
ADS1235-Q1	TI	获取价格	具有 PGA 和交流激励的汽车类 24 位、7.2kSPS、3 通道差动输入、Δ-Σ AD
ADS1235QWRHMRQ1	TI	获取价格	具有 PGA 和交流激励的汽车类 24 位、7.2kSPS、3 通道差动输入、Δ-Σ AD
ADS1240	TI	获取价格	24-Bit ANALOG-TO-DIGITAL CONVERTER

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