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参数资料
| 型号： | ADS1250U |
| 元件分类： | ADC |
| 英文描述： | 1-CH 20-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| 封装： | SOL-16 |
| 文件页数： | 1/20页 |
| 文件大小： | 196K |
| 代理商： | ADS1250U |
20-Bit Data Acquisition System
ANALOG-TO-DIGITAL CONVERTER
ADS1250
FEATURES
q 20 BITS NO MISSING CODES
q 18 BITS EFFECTIVE RESOLUTION UP TO
25kHz DATA RATE
q LOW NOISE: 2.8ppm at PGA = 1
q DIFFERENTIAL INPUTS
q INL: 0.002% (MAX)
q PROGRAMMABLE FULL SCALE
q I/O CONTROLLED PGA: 1, 2, 4, 8
q EXTERNAL REFERENCE
DESCRIPTION
The ADS1250 is a precision, wide dynamic range,
delta-sigma, analog-to-digital converter with 20-bit
resolution operating from a single +5V supply. The
delta-sigma architecture is used for wide dynamic
range and to guarantee 20 bits of no missing code
performance. An effective resolution of 18 bits (2.8ppm
of rms noise) is achieved for conversion rates up to
25kHz. The dynamic range of the converter is further
increased by providing a low-noise Programmable
Gain Amplifier (PGA) with gain stages of 1, 2, 4, or
8 for low level input signals.
The ADS1250 is designed for high-resolution mea-
surement applications in cardiac diagnostics, smart
transmitters, industrial process control, weigh scales,
chromatography and portable instrumentation. The
converter includes a flexible synchronous serial inter-
face and offers a three-wire control mode for low-cost
isolation.
The ADS1250 is a single-channel converter and is
offered in an SOL-16 package.
APPLICATIONS
q CARDIAC DIAGNOSTICS
q DIRECT THERMOCOUPLE INTERFACE
q BLOOD ANALYSIS
q INFRARED PYROMETER
q LIQUID/GAS CHROMATOGRAPHY
q PRECISION PROCESS CONTROL
1999 Burr-Brown Corporation
PDS-1520B
Printed in U.S.A. December, 1999
International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111
Twx: 910-952-1111 Internet: http://www.burr-brown.com/ Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
4th-Order
Σ
Modulator
Digital
Filter
Serial
Output
Control
PGA
+V
IN
G0
G1
CLK
VREF
SCLK
DRDY
DOUT
+VS
AGND
DSYNC
CS
+VD
DGND
–V
IN
+
–
ADS1250
For most current data sheet and other product
information, visit www.burr-brown.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADS1250U/1K | 功能描述:模数转换器 - ADC SpeedPlus 20-Bit Data Acq System 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 |
| ADS1250U/1KG4 | 功能描述:模数转换器 - ADC SpeedPlus 20-Bit Data Acq System 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 |
| ADS1250UG4 | 功能描述:模数转换器 - ADC SpeedPlus 20-Bit Data Acq System 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 |
| ADS1251 | 制造商:TI 制造商全称:Texas Instruments 功能描述:24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER |
| ADS1251EVM | 功能描述:数据转换 IC 开发工具 ADS1251 ADC Eval Mod RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
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