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ADS1216

現行

具有 VREF、PGA、IDAC 和 RAM 的 24 位元 8 通道 delta-sigma ADC

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功能與所比較的裝置相似
ADS124S08 現行 適用於感測器量測且具有 PGA 和電壓參考的 24 位元、4-kSPS、12 通道 delta-sigma ADC More analog inputs (12), faster sample rate (4 kSPS)

ADS1216

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 24 Sample rate (max) (ksps) 0.78 Number of input channels 8 Interface type SPI Architecture Delta-Sigma Input type Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), GPIO, Oscillator, PGA Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 0.6 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 24 Sample rate (max) (ksps) 0.78 Number of input channels 8 Interface type SPI Architecture Delta-Sigma Input type Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), GPIO, Oscillator, PGA Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 0.6 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
TQFP (PFB) 48 81 mm² 9 x 9
  • 24 BITS, NO MISSING CODES
  • 0.0015% INL
  • 22 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)
  • PGA FROM 1 TO 128
  • SINGLE-CYCLE SETTLING MODE
  • PROGRAMMABLE DATA OUTPUT RATES: up to 1kHz
  • ON-CHIP 1.25V/2.5V REFERENCE
  • EXTERNAL DIFFERENTIAL REFERENCE: 0.1V to 2.5V
  • ON-CHIP CALIBRATION
  • SPI™-COMPATIBLE
  • 2.7V TO 5.25V
  • < 1mW POWER CONSUMPTION
  • APPLICATIONS
    • INDUSTRIAL PROCESS CONTROL
    • LIQUID/GAS CHROMATOGRAPHY
    • BLOOD ANALYSIS
    • SMART TRANSMITTERS
    • PORTABLE INSTRUMENTATION
    • WEIGHT SCALES
    • PRESSURE TRANSDUCERS

SPI is a trademark of Motorola.
All other trademarks are the property of their respective owners.
  • 24 BITS, NO MISSING CODES
  • 0.0015% INL
  • 22 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)
  • PGA FROM 1 TO 128
  • SINGLE-CYCLE SETTLING MODE
  • PROGRAMMABLE DATA OUTPUT RATES: up to 1kHz
  • ON-CHIP 1.25V/2.5V REFERENCE
  • EXTERNAL DIFFERENTIAL REFERENCE: 0.1V to 2.5V
  • ON-CHIP CALIBRATION
  • SPI™-COMPATIBLE
  • 2.7V TO 5.25V
  • < 1mW POWER CONSUMPTION
  • APPLICATIONS
    • INDUSTRIAL PROCESS CONTROL
    • LIQUID/GAS CHROMATOGRAPHY
    • BLOOD ANALYSIS
    • SMART TRANSMITTERS
    • PORTABLE INSTRUMENTATION
    • WEIGHT SCALES
    • PRESSURE TRANSDUCERS

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

The ADS1216 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution operating from 2.7V to 5.25V supplies. The delta-sigma A/D converter provides up to 24 bits of no-missing-code performance and an effective resolution of 22 bits.

The eight input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit Digital-to-Analog Converter (DAC) provides an offset correction with a range of 50% of the FSR (Full-Scale Range).

The PGA (Programmable Gain Amplifier) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128. The A/D conversion is accomplished with a second-order delta-sigma modulator and programmable sinc filter. The reference input is differential and can be used for ratiometric cancellation. The onboard current DACs operate independently with the maximum current set by an external resistor.

The serial interface is SPI-compatible. Eight bits of digital I/O are also provided that can be used for input or output. The ADS1216 is designed for high-resolution measurement applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.

The ADS1216 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution operating from 2.7V to 5.25V supplies. The delta-sigma A/D converter provides up to 24 bits of no-missing-code performance and an effective resolution of 22 bits.

The eight input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit Digital-to-Analog Converter (DAC) provides an offset correction with a range of 50% of the FSR (Full-Scale Range).

The PGA (Programmable Gain Amplifier) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128. The A/D conversion is accomplished with a second-order delta-sigma modulator and programmable sinc filter. The reference input is differential and can be used for ratiometric cancellation. The onboard current DACs operate independently with the maximum current set by an external resistor.

The serial interface is SPI-compatible. Eight bits of digital I/O are also provided that can be used for input or output. The ADS1216 is designed for high-resolution measurement applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.
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重要文件 類型 標題 格式選項 日期
* Data sheet 8-Channel, 24-Bit Analog-to-Digital Converter datasheet (Rev. D) 2006年 9月 7日
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 2024年 3月 18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 (Rev. A) 2020年 6月 19日
Application note Measuring Temperature with the ADS1216, ADS1217, or ADS1218 (Rev. B) 2017年 11月 16日
Application note Measuring Single-Ended 0V-5V Signals with Differential Delta-Sigma ADCs (Rev. A) 2015年 5月 18日
Application note The Offset DAC (Rev. A) 2015年 4月 1日
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015年 3月 19日
Application note Calibration Routines and Register Value Generation for the ADS121x Series 2003年 6月 19日
Application note Inputs Currents for High-Resolution ADCs 2003年 3月 6日

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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 (...)

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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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PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

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TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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