主页 数据转换器 模数转换器 (ADC) 精密 ADC
主页
数据转换器
模数转换器 (ADC)
精密 ADC

ADS1271

正在供货

适用于宽带宽应用的 24 位、105kSPS 单通道 Δ-Σ ADC

立即订购
数据表

ADS1271

正在供货
数据表 立即订购

产品详情

Resolution (Bits) 24 Sample rate (max) (ksps) 105 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features Daisy-Chainable, Wideband Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 92 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 109 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
Resolution (Bits) 24 Sample rate (max) (ksps) 105 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features Daisy-Chainable, Wideband Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 92 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 109 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
TSSOP (PW) 16 32 mm² 5 x 6.4
  • 105kSPS Data Rate
  • AC Performance:
    51kHz Bandwidth
    109dB SNR (High-Resolution Mode)
    –108dB THD
  • DC Accuracy:
    1.8µV/°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
  • Modulator Output Option
  • 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

SPI is a trademark of Motorola Inc. All other trademarks are the property of their respective owners.
  • 105kSPS Data Rate
  • AC Performance:
    51kHz Bandwidth
    109dB SNR (High-Resolution Mode)
    –108dB THD
  • DC Accuracy:
    1.8µV/°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
  • Modulator Output Option
  • 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

SPI is a trademark of Motorola Inc. All other trademarks are the property of their respective owners.

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. The high-order, 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.

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. The output from the modulator is accessible for external digital filter applications. All operations, including internal offset calibration, are controlled directly by pins; there are no registers to program.

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. The high-order, 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.

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. The output from the modulator is accessible for external digital filter applications. All operations, including internal offset calibration, are controlled directly by pins; there are no registers to program.
filter 查找其他 精密 ADC
下载 观看带字幕的视频 视频

您可能感兴趣的相似产品

open-in-new 比较替代产品
功能与比较器件相似
ADS127L11 正在供货 具有易驱动输入和宽带或低延迟滤波器的 24 位 400kSPS Δ-Σ ADC Faster sample rate (400 kSPS)

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 9
顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 24-Bit, Wide Bandwidth Analog-to-Digital Converter 数据表 (Rev. F) 2007年 10月 23日
应用手册 Δ-Σ ADC 中的数字滤波器类型 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2023年 4月 13日
电子书 Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020年 6月 19日
白皮书 Voltage-reference impact on total harmonic distortion 2016年 8月 1日
电子书 Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015年 3月 19日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日
应用手册 模数规格和性能特性术语表 (Rev. A) 最新英语版本 (Rev.B) 2008年 10月 16日
应用手册 高速数据转换 英语版 2008年 10月 16日
应用手册 Synchronizing the ADS1271 2005年 10月 27日

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持和培训

视频