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類比轉數位轉換器 (ADC)
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ADS8867

現行

具實際差動輸入、SPI 介面和菊輪鍊的 16 位元、100-kSPS、1 通道 SAR ADC

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產品規格表

ADS8867

現行
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產品詳細資料

Resolution (Bits) 16 Sample rate (max) (ksps) 100 Number of input channels 1 Interface type SPI Architecture SAR Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Oscillator, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 0.7 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 3.6 SNR (dB) 96.5 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
Resolution (Bits) 16 Sample rate (max) (ksps) 100 Number of input channels 1 Interface type SPI Architecture SAR Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Daisy-Chainable, Oscillator, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 0.7 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 3.6 SNR (dB) 96.5 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
VSON (DRC) 10 9 mm² (3 mm × 3 mm) VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • Sample Rate: 100 kHz
  • No Latency Output
  • Unipolar, True-Differential Input Range:
    –VREF to +VREF
  • Wide Common-Mode Voltage Range:
    0 V to VREF with 90-dB CMRR (min)
  • SPI™-Compatible Serial Interface with
    Daisy-Chain Option
  • Excellent AC and DC Performance:
    • SNR: 96 dB, THD: –115 dB
    • INL: ±1.0 LSB (max)
    • DNL: ±1.0 LSB (max), 16-Bit NMC
  • Wide Operating Range:
    • AVDD: 2.7 V to 3.6 V
    • DVDD: 1.65 V to 3.6 V
      (Independent of AVDD)
    • REF: 2.5 V to 5 V (Independent of AVDD)
    • Operating Temperature: –40°C to +85°C
  • Low-Power Dissipation:
    • 0.7 mW at 100 kSPS
    • 70 µW at 10 kSPS
  • Power-Down Current (AVDD): 50 nA
  • Full-Scale Step Settling to 16 Bits: 1200 ns
  • Packages: MSOP-10 and SON-10
  • Sample Rate: 100 kHz
  • No Latency Output
  • Unipolar, True-Differential Input Range:
    –VREF to +VREF
  • Wide Common-Mode Voltage Range:
    0 V to VREF with 90-dB CMRR (min)
  • SPI™-Compatible Serial Interface with
    Daisy-Chain Option
  • Excellent AC and DC Performance:
    • SNR: 96 dB, THD: –115 dB
    • INL: ±1.0 LSB (max)
    • DNL: ±1.0 LSB (max), 16-Bit NMC
  • Wide Operating Range:
    • AVDD: 2.7 V to 3.6 V
    • DVDD: 1.65 V to 3.6 V
      (Independent of AVDD)
    • REF: 2.5 V to 5 V (Independent of AVDD)
    • Operating Temperature: –40°C to +85°C
  • Low-Power Dissipation:
    • 0.7 mW at 100 kSPS
    • 70 µW at 10 kSPS
  • Power-Down Current (AVDD): 50 nA
  • Full-Scale Step Settling to 16 Bits: 1200 ns
  • Packages: MSOP-10 and SON-10

The ADS8867 is a 16-bit, 100-kSPS, true-differential input, analog-to-digital converter (ADC). The device operates with a 2.5-V to 5-V external reference, offering a wide selection of signal ranges without additional input signal scaling. The reference voltage setting is independent of, and can exceed, the analog supply voltage (AVDD).

The device offers an SPI-compatible serial interface that also supports daisy-chain operation for cascading multiple devices.

The device supports unipolar, true-differential analog input signals with a differential input swing of –VREF to +VREF. This true-differential analog input structure allows for a common-mode voltage of any value in the range of 0 V to +VREF (when both inputs are within the operating input range of –0.1 V to VREF + 0.1 V).

Device operation is optimized for very low-power operation. Power consumption directly scales with speed. This feature makes the ADS8867 excellent for lower-speed applications.

The ADS8867 is a 16-bit, 100-kSPS, true-differential input, analog-to-digital converter (ADC). The device operates with a 2.5-V to 5-V external reference, offering a wide selection of signal ranges without additional input signal scaling. The reference voltage setting is independent of, and can exceed, the analog supply voltage (AVDD).

The device offers an SPI-compatible serial interface that also supports daisy-chain operation for cascading multiple devices.

The device supports unipolar, true-differential analog input signals with a differential input swing of –VREF to +VREF. This true-differential analog input structure allows for a common-mode voltage of any value in the range of 0 V to +VREF (when both inputs are within the operating input range of –0.1 V to VREF + 0.1 V).

Device operation is optimized for very low-power operation. Power consumption directly scales with speed. This feature makes the ADS8867 excellent for lower-speed applications.
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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 16-Bit, 100-kSPS, Serial Interface, microPower, Miniature, True-Differential Inp datasheet (Rev. A) 2013/12/17
Circuit design Circuit for protecting low-voltage SAR ADC from electrical overstress with minim (Rev. A) PDF | HTML 2024/9/19
Product overview PLC Analog Input Front-End Architectures PDF | HTML 2022/7/31
白皮書 Voltage-reference impact on total harmonic distortion 2016/8/1
電子書 Best of Baker's Best: Precision Data Converters -- SAR ADCs 2015/5/21

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)。

模擬型號

ADS8861 TINA-TI Reference Design

SBAM180.ZIP (288 KB) - TINA-TI 參考設計
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模擬型號

ADS8881 IBIS Model

SBAM172.ZIP (35 KB) - IBIS 模型
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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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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSON (DRC) 10 Ultra Librarian
VSSOP (DGS) 10 Ultra Librarian
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