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ADS1112

現行

具有 PGA、振盪器、電壓參考和 I2C 的 16 位元 240SPS 4 通道 Delta-Sigma ADC

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產品規格表

ADS1112

現行
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產品詳細資料

Resolution (Bits) 16 Sample rate (max) (ksps) 0.24 Number of input channels 3 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 0.675 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 0.24 Number of input channels 3 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 0.675 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
VSON (DRC) 10 9 mm² (3 mm × 3 mm) VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • COMPLETE DATA ACQUISITION SYSTEM IN A SMALL MSOP–10 PACKAGE AND LEADLESS QFN-STYLE PACKAGES
  • MEASUREMENTS FROM TWO DIFFERENTIAL CHANNELS OR THREE SINGLE–ENDED CHANNELS
  • I2C™ INTERFACE—EIGHT ADDRESSES PIN–SELECTABLE
  • ONBOARD REFERENCE:
       Accuracy: 2.048V ±0.05%
       Drift: 5ppm/°C
  • ONBOARD PGA
  • ONBOARD OSCILLATOR
  • 16-BITS NO MISSING CODES
  • INL: 0.01% of FSR max
  • CONTINUOUS SELF-CALIBRATION
  • SINGLE-CYCLE CONVERSION
  • PROGRAMMABLE DATA RATE: 15SPS TO 240SPS
  • POWER SUPPLY: 2.7V to 5.5V
  • LOW CURRENT CONSUMPTION: 240µA
  • APPLICATIONS
    • PORTABLE INSTRUMENTATION
    • INDUSTRIAL PROCESS CONTROL
    • SMART TRANSMITTERS
    • CONSUMER GOODS
    • FACTORY AUTOMATION
    • TEMPERATURE MEASUREMENT

All trademarks are the property of their respective owners.
  • COMPLETE DATA ACQUISITION SYSTEM IN A SMALL MSOP–10 PACKAGE AND LEADLESS QFN-STYLE PACKAGES
  • MEASUREMENTS FROM TWO DIFFERENTIAL CHANNELS OR THREE SINGLE–ENDED CHANNELS
  • I2C™ INTERFACE—EIGHT ADDRESSES PIN–SELECTABLE
  • ONBOARD REFERENCE:
       Accuracy: 2.048V ±0.05%
       Drift: 5ppm/°C
  • ONBOARD PGA
  • ONBOARD OSCILLATOR
  • 16-BITS NO MISSING CODES
  • INL: 0.01% of FSR max
  • CONTINUOUS SELF-CALIBRATION
  • SINGLE-CYCLE CONVERSION
  • PROGRAMMABLE DATA RATE: 15SPS TO 240SPS
  • POWER SUPPLY: 2.7V to 5.5V
  • LOW CURRENT CONSUMPTION: 240µA
  • APPLICATIONS
    • PORTABLE INSTRUMENTATION
    • INDUSTRIAL PROCESS CONTROL
    • SMART TRANSMITTERS
    • CONSUMER GOODS
    • FACTORY AUTOMATION
    • TEMPERATURE MEASUREMENT

All trademarks are the property of their respective owners.

The ADS1112 is a precision, continuously self–calibrating Analog-to-Digital (A/D) converter with two differential or three single–ended channels and up to 16 bits of resolution in a small MSOP–10 package and leadless QFN-style (small-outline, no lead) packages. The onboard 2.048V reference provides an input range of ±2.048V differentially. The ADS1112 uses an I2C-compatible serial interface and has two address pins that allow a user to select one of the eight I2C Slave addresses. The ADS1112 operates from a single power supply ranging from 2.7V to 5.5V.

The ADS1112 can perform conversions at rates of 15, 30, 60, or 240 samples per second (SPS). The onboard programmable gain amplifier (PGA), which offers gains of up to eight, allows smaller signals to be measured with high resolution. In single-conversion mode, the ADS1112 automatically powers down after a conversion, greatly reducing current consumption during idle periods.

The ADS1112 is designed for applications requiring high-resolution measurement, where space and power consumption are major considerations. Typical applications include portable instrumentation, industrial process control, and smart transmitters.

The ADS1112 is a precision, continuously self–calibrating Analog-to-Digital (A/D) converter with two differential or three single–ended channels and up to 16 bits of resolution in a small MSOP–10 package and leadless QFN-style (small-outline, no lead) packages. The onboard 2.048V reference provides an input range of ±2.048V differentially. The ADS1112 uses an I2C-compatible serial interface and has two address pins that allow a user to select one of the eight I2C Slave addresses. The ADS1112 operates from a single power supply ranging from 2.7V to 5.5V.

The ADS1112 can perform conversions at rates of 15, 30, 60, or 240 samples per second (SPS). The onboard programmable gain amplifier (PGA), which offers gains of up to eight, allows smaller signals to be measured with high resolution. In single-conversion mode, the ADS1112 automatically powers down after a conversion, greatly reducing current consumption during idle periods.

The ADS1112 is designed for applications requiring high-resolution measurement, where space and power consumption are major considerations. Typical applications include portable instrumentation, industrial process control, and smart transmitters.
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ADS1110 現行 具有 PGA、振盪器、電壓參考和 I2C 的 16 位元 240SPS 1 通道 Delta-Sigma ADC Lower sample rate (0.128 kSPS), lower channel count (1-Ch)

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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 ADS1112: 16-Bit Analog-to-Digital Conv with Input Multiplexer and Onboard Ref datasheet (Rev. D) 2004/3/4
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 QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/6
應用說明 Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023/3/29
應用說明 A Basic Guide to I2C PDF | HTML 2022/11/8
電子書 Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020/6/19
類比設計期刊 How delta-sigma ADCs work, Part 1 (Rev. A) 2016/9/19
電子書 Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015/3/19
類比設計期刊 How delta-sigma ADCs work, Part 2 2011/11/9

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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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VSON (DRC) 10 Ultra Librarian
VSSOP (DGS) 10 Ultra Librarian
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