ADS1271
- 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.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | 24-Bit, Wide Bandwidth Analog-to-Digital Converter datasheet (Rev. F) | 2007年 10月 23日 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023年 3月 29日 | |
E-book | Fundamentals of Precision ADC Noise Analysis | 2020年 6月 19日 | ||
White paper | Voltage-reference impact on total harmonic distortion | 2016年 8月 1日 | ||
E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015年 3月 19日 | ||
EVM User's guide | ADS1271EVM User's Guide (Rev. C) | 2014年 11月 19日 | ||
Application note | Synchronizing the ADS1271 | 2005年 10月 27日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
PP-SALB2-EVM — PP-SALB2-EVM 智慧放大器喇叭特性化基板評估模組 (學習板 2)
This board supports: TAS2555YZEVM, TAS2557EVM and TAS2559EVM.
The Smart Amplifier Speaker Characterization Board, when used in conjunction with a supported TI Smart Amplifier and PurePath Console software, provides users the ability to measure speaker excursion, temperature and other parameters for (...)
ADS1271-EXCEL-CALC-TOOL — ADS1271 Design Calculator
- The ADS1271 Excel calculator tool provides the user with several easy-to-use tools to simplify the configuration of the ADS1271. The tool helps the user understand the different settings and operating modes that aid in optimizing a design with the ADS1271 wide-bandwidth analog-to-digital converter (...)
支援產品和硬體
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
支援產品和硬體
產品
精密度運算放大器 (Vos<1mV)
一般用途運算放大器
音訊運算放大器
轉阻放大器
高速運算放大器 (GBW ≥ 50 MHz)
功率運算放大器
視訊放大器
線路驅動器
轉導放大器與雷射驅動器
全差分放大器
精確 ADC
生物感測 AFE
高速 ADC (≥10 MSPS)
接收器
觸控式螢幕控制器
差分放大器
儀器放大器
音訊線路接收器
類比電流感測放大器
數位電源監測器
配備整合式分流電阻器的類比電流感測放大器
具整合式分流電阻器的數位電源監測器
晶粒與晶圓服務
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
TSSOP (PW) | 16 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。