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參數資料
| 型號： | ADS1250U |
| 元件分類： | ADC |
| 英文描述： | 1-CH 20-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | SOL-16 |
| 文件頁數： | 1/20頁 |
| 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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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADS1250U/1K | 功能描述:模數轉換器 - ADC SpeedPlus 20-Bit Data Acq System RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1250U/1KG4 | 功能描述:模數轉換器 - ADC SpeedPlus 20-Bit Data Acq System RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1250UG4 | 功能描述:模數轉換器 - ADC SpeedPlus 20-Bit Data Acq System RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1251 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER |
| ADS1251EVM | 功能描述:數據轉換 IC 開發工具 ADS1251 ADC Eval Mod RoHS:否 制造商:Texas Instruments 產品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
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