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參數(shù)資料
| 型號： | ADS1271IPW |
| 元件分類： | ADC |
| 英文描述： | 24 BIT WIDE BANDWIDTH ANALOG TO DIGITAL CONVERTER |
| 中文描述： | 24位寬帶模數(shù)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/29頁 |
| 文件大?。?/td> | 381K |
| 代理商： | ADS1271IPW |
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SBAS306A NOVEMBER 2004 REVISED DECEMBER 2004
FEATURES
105kSPS Data Rate
AC Performance:
51kHz Bandwidth
109dB SNR (High-Resolution Mode)
105dB THD
DC Accuracy:
1.8
μ
V/
°
C Offset Drift
2ppm/
°
C Gain Drift
Selectable Operating Modes:
High-Speed: 105kSPS Data Rate
High-Resolution: 109dB SNR
Low-Power: 35mW Dissipation
Power-Down Control
Digital Filter:
Linear Phase Response
Passband Ripple:
±
0.005dB
Stop Band Attenuation: 100dB
Internal Offset Calibration On Command
Selectable SPI or Frame Sync Serial Interface
Designed for Multichannel Systems:
Daisy-Chainable Serial Interface
Easy Synchronization
Simple Pin-Driven Control
Specified from 40
°
C to +105
°
C
Analog Supply: 5V
Digital Supply: 1.8V to 3.3V
APPLICATIONS
Vibration/Modal Analysis
Acoustics
Dynamic Strain Gauges
Pressure Sensors
Test and Measurement
DESCRIPTION
The ADS1271 is a 24-bit, delta-sigma analog-to-digital
converter (ADC) with a data rate up to 105kSPS. It offers
a unique combination of excellent DC accuracy and
outstanding
AC
performance.
chopper-stabilized modulator achieves very low drift with
low in-band noise. The onboard decimation filter
suppresses modulator and signal out-of-band noise. The
ADS1271 provides a usable signal bandwidth up to 90%
of the Nyquist rate with less than 0.005dB of ripple.
The
high-order,
Traditionally, industrial delta-sigma ADCs offering good
drift performance use digital filters with large passband
droop. As a result, they have limited signal bandwidth and
are mostly suited for DC measurements. High-resolution
ADCs in audio applications offer larger usable bandwidths,
but the offset and drift specification are significantly
weaker than their industrial counterparts. The ADS1271
combines these converters, allowing high-precision
industrial measurement with excellent DC and AC
specifications ensured over an extended industrial
temperature range.
Three operating modes allow for optimization of speed,
resolution, and power. A selectable SPI or a frame-sync
serial interface provides for convenient interfacing to
microcontrollers or DSPs. All operations, including internal
offset calibration, are controlled directly by pins; there are
no registers to program.
Σ
Modulator
Digital
Filter
VREFP VREFN
AVDD
DVDD
DRDY/FSYNC
SCLK
DOUT
DIN
FORMAT
AINP
AINN
Serial
Interface
Control
Logic
DGND
AGND
SYNC/PDWN
MODE
CLK
www.ti.com
Copyright
2004, 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.
All trademarks are the property of their respective owners.
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相關(guān)PDF資料 |
PDF描述 |
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| ADS1271IPWR | 24 BIT WIDE BANDWIDTH ANALOG TO DIGITAL CONVERTER |
| ADS1271EVM-PDK | modular EVM form factor |
| ADS1271EVM | modular EVM form factor |
| ADS1601 | 16-BIT 1.25MSPS ANALOG TO DIGITAL CONVERTER |
| ADS1601IPFBR | 16-BIT 1.25MSPS ANALOG TO DIGITAL CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS1271IPWG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit 105kSPS Ind Delta-Sigma RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1271IPWR | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit 105kSPS Ind Delta-Sigma RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1271IPWRG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit 105kSPS Ind Delta-Sigma RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1274 | 制造商:BB 制造商全稱:BB 功能描述:Quad/Octal, Simultaneous Sampling, 24-Bit Analog-to-Digital Converters |
| ADS1274EVM | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS1274EVM Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)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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