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ADS1112

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具有 PGA、振荡器、电压基准和 I2C 的 16 位 240SPS 4 通道 Δ-Σ ADC

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ADS1112

正在供货
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产品详情

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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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 ADS1112: 16-Bit Analog-to-Digital Conv with Input Multiplexer and Onboard Ref 数据表 (Rev. D) 2004-3-4
应用手册 计算 Δ-Σ ADC 的转换延迟和系统周期时间 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2024-3-27
应用手册 QFN 和 SON PCB 连接 (Rev. C) PDF | HTML 英语版 (Rev.C) PDF | HTML 2024-1-5
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 2023-4-13
应用手册 A Basic Guide to I2C PDF | HTML 2022-11-8
电子书 Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020-6-19
模拟设计期刊 How delta-sigma ADCs work, Part 1 (Rev. A) 2016-9-19
电子书 Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015-3-19
模拟设计期刊 ΔΣ ADC工作原理 英语版 2012-1-13

设计与开发

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计算工具

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

模拟工程师计算器旨在加快模拟电路设计工程师经常运用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算列表，从使用反馈电阻器设置运算放大器增益到选择合适的电路设计元件，以稳定模数转换器 (ADC) 驱动器缓冲器电路。

除了可用作独立工具之外，该计算器还能很好地与模拟工程师口袋参考中所述的概念配合使用。

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
VSON (DRC) 10 Ultra Librarian
VSSOP (DGS) 10 Ultra Librarian
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