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ADS1254

現行

具有獨立AVDD 和 DVDD 的 24 位元、20-kSPS、4 通道 delta-sigma ADC

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產品規格表

ADS1254

現行
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產品詳細資料

Resolution (Bits) 24 Sample rate (max) (ksps) 20 Number of input channels 4 Interface type SPI Architecture Delta-Sigma Input type Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 4.3 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 1.8 Digital supply (max) (V) 3.6
Resolution (Bits) 24 Sample rate (max) (ksps) 20 Number of input channels 4 Interface type SPI Architecture Delta-Sigma Input type Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 4.3 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 1.8 Digital supply (max) (V) 3.6
SSOP (DBQ) 20 51.9 mm² (8.65 mm × 6 mm)
  • 24 BITS—NO MISSING CODES
  • 19 BITS EFFECTIVE RESOLUTION UP TO 20kHz DATA RATE
  • LOW NOISE: 1.8ppm
  • FOUR DIFFERENTIAL INPUTS
  • INL: 15ppm (max)
  • EXTERNAL REFERENCE (0.5V to 5V)
  • POWER-DOWN MODE
  • SYNC MODE
  • LOW POWER: 4mW at 20kHz
  • SEPARATE DIGITAL SUPPLY 1.8V to 3.6V
  • APPLICATIONS
    • CARDIAC DIAGNOSTICS
    • DIRECT THERMOCOUPLE INTERFACES
    • BLOOD ANALYSIS
    • INFRARED PYROMETERS
    • LIQUID/GAS CHROMATOGRAPHY
    • PRECISION PROCESS CONTROL

All trademarks are the property of their respective owners.
  • 24 BITS—NO MISSING CODES
  • 19 BITS EFFECTIVE RESOLUTION UP TO 20kHz DATA RATE
  • LOW NOISE: 1.8ppm
  • FOUR DIFFERENTIAL INPUTS
  • INL: 15ppm (max)
  • EXTERNAL REFERENCE (0.5V to 5V)
  • POWER-DOWN MODE
  • SYNC MODE
  • LOW POWER: 4mW at 20kHz
  • SEPARATE DIGITAL SUPPLY 1.8V to 3.6V
  • APPLICATIONS
    • CARDIAC DIAGNOSTICS
    • DIRECT THERMOCOUPLE INTERFACES
    • BLOOD ANALYSIS
    • INFRARED PYROMETERS
    • LIQUID/GAS CHROMATOGRAPHY
    • PRECISION PROCESS CONTROL

All trademarks are the property of their respective owners.

The ADS1254 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution. The delta-sigma architecture is used for wide dynamic 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, industrial 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.

The ADS1254 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution. The delta-sigma architecture is used for wide dynamic 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, industrial 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.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 24-Bit, 20kHz, Low Power Analog-to-Digital Converter datasheet (Rev. B) 2006/6/29
應用說明 Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 2024/3/18
應用說明 A Basic Guide to Bridge Measurements (Rev. A) PDF | HTML 2024/3/13
應用說明 Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023/3/29
電子書 Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020/6/19
電子書 Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015/3/19
應用說明 Understanding the ADS1251, ADS1253, and ADS1254 Input Circuitry 2002/12/17

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支援軟體

SLAR031 — Eval SW (fixes a problem with the installer on existing CDROM) for ADS1254

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計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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設計工具

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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SSOP (DBQ) 20 Ultra Librarian
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