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| 型号： | ADS1225IRGVRG4 |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | 24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Internal Oscillator |
| 中文描述： | 24位模拟数字转换器与单和双通道差分输入和内部振荡器 |
| 文件页数： | 1/24页 |
| 文件大小： | 398K |
| 代理商： | ADS1225IRGVRG4 |
ADS1225
¨
¨
ADS1226
FEATURES
100SPS Data Rate (High-Speed Mode)
Single-Cycle Settling
Easy Conversion Control with START Pin
Automatic Shutdown
Low Noise: 4
μ
V
RMS
Noise (High-Resolution
Mode)
Input Multiplexer with Two Differential
Channels (ADS1226)
Voltage Reference Supports Ratiometric
Measurements
Self-Calibrating
Simple Read-Only 2-Wire Serial Interface
Internal High-Impedance Input Buffer
Internal Temperature Sensor
Internal Oscillator
Low-Power: 1mW While Operating, < 1
μ
A
During Shutdown
Analog and Digital Supplies: 2.7V to 5.5V
DESCRIPTION
The ADS1225 and ADS1226 are 24-bit delta-sigma
analog-to-digital
(A/D)
excellent performance, ease-of-use, and low power
in a small 4mm
×
4mm QFN package and are
well-suited
for
demanding
measurements, especially in portable and other
space-saving and power-constrained applications.
APPLICATIONS
Hand-Held Instrumentation
Portable Medical Equipment
Industrial Process Control
MUX
Serial Interface
DS
ADC
VREFP VREFN
Buffer
AVDD
DVDD
GND
MUX
ADS1226 Only
AINP1
AINN1
AINP2
AINN2
DRDY/DOUT
SCLK
TEMPEN
START
Oscillator
MODE
BUFEN
ADS1225
ADS1226
SBAS346–MAY 2006
24-Bit Analog-to-Digital Converter
with One- and Two-Channel Differential Inputs and Internal Oscillator
converters.
They
offer
high-resolution
The ADS1225 and ADS1226 convert on command
using a dedicated START pin. Simply pulse this pin
to initiate a conversion. Data is read in a single cycle
for retrieval over a 2-wire serial interface that easily
connects
to
popular
microcontrollers
MSP430.
After
the
conversion
ADS1225 and ADS1226 automatically shuts down all
circuitry.
like
the
the
completes,
Internal features include a two-channel multiplexer
(ADS1226),
selectable
input
sensor, and oscillator. The full-scale range is defined
by the external voltage reference with support
provided for up to a 5V differential input signal. Two
operating modes allow for speed (100SPS data rate,
15
μ
V
noise) or resolution (4
μ
V
RMS
noise, 16SPS
data rate).
buffer,
temperature
The ADS1225/6 supports 2.7 to 5.5V analog and
digital supplies. Power consumption is 1mW while
converting with 3V supplies. The ADS1225 and
ADS1226 are fully specified over an extended
industrial temperature range of –40
°
C to +105
°
C.
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.
Copyright 2006, Texas Instruments Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| ADS1225IRGVT | 24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Internal Oscillator |
| ADS1225IRGVTG4 | 24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Internal Oscillator |
| ADS1226 | 24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Internal Oscillator |
| ADS1226IRGVR | 24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Internal Oscillator |
| ADS1226IRGVRG4 | 24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Internal Oscillator |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADS1225IRGVT | 功能描述:模数转换器 - ADC 24-Bit 100SPS ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS1225IRGVT | 制造商:Texas Instruments 功能描述:A/D Converter (A-D) IC |
| ADS1225IRGVTG4 | 功能描述:模数转换器 - ADC 24-Bit 100SPS ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS1226 | 制造商:AD 制造商全称:Analog Devices 功能描述:24-Bit Analog-to-Digital Converter with One- and Two-Channel Differential Inputs and Internal Oscillator |
| ADS1226IRGVR | 功能描述:模数转换器 - ADC 24-Bit ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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