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參數(shù)資料
| 型號： | ADS1254E |
| 英文描述： | 24-Bit, 20kHz, Low Power ANALOG-TO-DIGITAL CONVERTER |
| 中文描述： | 24位20kHz的，低功耗模擬數(shù)字轉換器 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 281K |
| 代理商： | ADS1254E |
24-Bit, 20kHz, Low Power
ANALOG-TO-DIGITAL CONVERTER
FEATURES
G
24 BITS—NO MISSING CODES
G
19 BITS EFFECTIVE RESOLUTION UP TO
20kHz DATA RATE
G
LOW NOISE: 1.8ppm
G
FOUR DIFFERENTIAL INPUTS
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INL: 15ppm (max)
G
EXTERNAL REFERENCE (0.5V to 5V)
G
POWER-DOWN MODE
G
SYNC MODE
G
LOW POWER: 4mW at 20kHz
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SEPARATE DIGITAL INTERFACE SUPPLY 1.8V
to 3.6V
DESCRIPTION
The ADS1254 is a precision, wide dynamic range, delta-
sigma, Analog-to-Digital (A/D) converter with 24-bit reso-
lution. The delta-sigma architecture is used for wide dy-
namic range and to ensure 24 bits of no missing codes
performance. An effective resolution of 19 bits (1.8ppm of
rms noise) is achieved for conversion rates up to 20kHz.
The ADS1254 is designed for high-resolution measurement
applications in cardiac diagnostics, smart transmitters, in-
dustrial process control, weight scales, chromatography, and
portable instrumentation. The converter includes a flexible,
two-wire synchronous serial interface for low-cost isolation.
The ADS1254 is a multi-channel converter and is offered in
an SSOP-20 package.
APPLICATIONS
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CARDIAC DIAGNOSTICS
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DIRECT THERMOCOUPLE INTERFACES
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BLOOD ANALYSIS
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INFRARED PYROMETERS
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LIQUID/GAS CHROMATOGRAPHY
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PRECISION PROCESS CONTROL
ADS1254
SBAS213 – JUNE 2001
4th-Order
Σ
Modulator
Digital
Filter
Serial
Interface
Control
CLK
V
REF
SCLK
DOUT/DRDY
AV
DD
AGND
DV
DD
DGND
ADS1254
Mux
CH1+
CH1
–
CH2+
CH2
–
CH3+
CH3
–
CH4+
CH4
–
CHSEL0
CHSEL1
www.ti.com
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.
Copyright 2001, Texas Instruments Incorporated
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.
ADS1254
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADS1254E | 制造商:Texas Instruments 功能描述:IC 24BIT ADC SMD 1254 SSOP20 制造商:Texas Instruments 功能描述:IC, 24BIT ADC, SMD, 1254, SSOP20 制造商:Texas Instruments 功能描述:IC, 24BIT ADC, SMD, 1254, SSOP20; Resolution (Bits):24bit; Sampling Rate:20.8kSPS; Supply Voltage Type:Single; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V; Supply Current:800A; Digital IC Case Style:SSOP; No. of Pins:20; ;RoHS Compliant: Yes |
| ADS1254E/2K5 | 功能描述:模數(shù)轉換器 - ADC 24-Bit 20kHz Low Power RoHS:否 制造商:Texas Instruments 通道數(shù)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 |
| ADS1254E/2K5G4 | 功能描述:模數(shù)轉換器 - ADC 24-Bit 20kHz Low Power RoHS:否 制造商:Texas Instruments 通道數(shù)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 |
| ADS1254EG4 | 功能描述:模數(shù)轉換器 - ADC 24-Bit 20kHz Low Power RoHS:否 制造商:Texas Instruments 通道數(shù)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 |
| ADS1254-EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-Bit, 20-kHz, LOW POWER ANALOG-TO-DIGITAL CONVERTER |
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