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類比轉數位轉換器 (ADC)
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ADS9817

現行

具有整合式類比前端的八通道、18 位元、2-MSPS/ch 雙同時取樣 ADC

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產品規格表

ADS9817

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 18 Sample rate (max) (ksps) 2000 Number of input channels 8 Interface type Enhanced SPI, Serial CMOS Architecture SAR Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Over-Voltage Protection, PGA Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 220 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 92.3 Digital supply (min) (V) 1.75 Digital supply (max) (V) 1.85
Resolution (Bits) 18 Sample rate (max) (ksps) 2000 Number of input channels 8 Interface type Enhanced SPI, Serial CMOS Architecture SAR Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Over-Voltage Protection, PGA Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 220 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 92.3 Digital supply (min) (V) 1.75 Digital supply (max) (V) 1.85
VQFN (RSH) 56 49 mm² (7 mm × 7 mm)
  • 8-channel, 18-bit ADC with analog front-end:
    • Dual, simultaneous sampling: 4 × 1 channels
    • Constant 1MΩ input impedance front-end
  • Programmable analog input ranges:
    • ±12V, ±10V, ±7V, ±5V, ±3.5V, and ±2.5V
    • Single-ended and differential inputs
    • ±12V common-mode voltage range
    • Input overvoltage protection: Up to ±18V
  • User-selectable analog input bandwidth:
    • 21kHz and 400kHz
  • Integrated low-drift precision references
    • ADC reference: 4.096V
    • 2.5V reference output for external circuits
  • Excellent AC and DC performance at full-throughput:
    • DNL: ±0.5LSB, INL: ±0.8LSB
    • SNR: 92dB, THD: –113dB
  • Power supply:
    • Analog and digital: 5V and 1.8V
    • Digital interface: 1.2V to 1.8V
  • Temperature range: –40°C to +125°C
  • 8-channel, 18-bit ADC with analog front-end:
    • Dual, simultaneous sampling: 4 × 1 channels
    • Constant 1MΩ input impedance front-end
  • Programmable analog input ranges:
    • ±12V, ±10V, ±7V, ±5V, ±3.5V, and ±2.5V
    • Single-ended and differential inputs
    • ±12V common-mode voltage range
    • Input overvoltage protection: Up to ±18V
  • User-selectable analog input bandwidth:
    • 21kHz and 400kHz
  • Integrated low-drift precision references
    • ADC reference: 4.096V
    • 2.5V reference output for external circuits
  • Excellent AC and DC performance at full-throughput:
    • DNL: ±0.5LSB, INL: ±0.8LSB
    • SNR: 92dB, THD: –113dB
  • Power supply:
    • Analog and digital: 5V and 1.8V
    • Digital interface: 1.2V to 1.8V
  • Temperature range: –40°C to +125°C

The ADS981x is an 8-channel data acquisition (DAQ) system based on a dual, simultaneous-sampling, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC). The ADS981x features a complete analog front-end for each channel with an input clamp protection circuit, 1MΩ input impedance, and a programmable gain amplifier (PGA) with user-selectable bandwidth options. The high input impedance allows direct connection with sensors and transformers, thus eliminating the need for external driver circuits. The ADS981x can be configured to accept unipolar or bipolar inputs with up to a ±12V common-mode voltage.

The device also features a 4.096V reference for the ADC and a 2.5V reference output for use with external circuits. A digital interface supporting 1.2V to 1.8V operation enables the ADS981x to be used without external voltage level translators.

The ADS981x is an 8-channel data acquisition (DAQ) system based on a dual, simultaneous-sampling, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC). The ADS981x features a complete analog front-end for each channel with an input clamp protection circuit, 1MΩ input impedance, and a programmable gain amplifier (PGA) with user-selectable bandwidth options. The high input impedance allows direct connection with sensors and transformers, thus eliminating the need for external driver circuits. The ADS981x can be configured to accept unipolar or bipolar inputs with up to a ±12V common-mode voltage.

The device also features a 4.096V reference for the ADC and a 2.5V reference output for use with external circuits. A digital interface supporting 1.2V to 1.8V operation enables the ADS981x to be used without external voltage level translators.
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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 ADS981x 18-Bit, 2-MSPS/Ch, Dual, Simultaneous-Sampling ADC With Integrated Analog Front-End datasheet (Rev. B) PDF | HTML 2024/10/10
Application brief Measurement Cards for Semiconductor Automatic Test Equipment (ATE) PDF | HTML 2025/4/28
Application brief Precision ADC for Measuring Analog Outputs of Parametric Measurement Unit (PMU) (Rev. B) PDF | HTML 2025/1/14
技術文章 如何監控自動化測試儀和編碼器 PDF | HTML Download English Version PDF | HTML 2024/5/14
Application brief High-Speed Data Interface for Precision High-Speed ADC in Semiconductor Test PDF | HTML 2023/3/16

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)。

開發板

ADS9817EVM — ADS9817 評估模組

ADS9817 評估模組 (EVM) 是用於評估 ADS9817 性能的平台，其為具備整合式類比前端與 ADC 參考的 8 通道、18 位元、每通道 2 MSPS 的 SAR ADC。ADS9817EVM 包括標準 FMC 連接器，可介接標準 FPGA 開發電路板。提供搭配 TSWDC155EVM (另售) 使用的電腦軟體，讓使用者可透過通用序列匯流排 (USB) 與 ADC 通訊、擷取數據與執行數據分析。

使用指南: PDF | HTML
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支援軟體

ADS98XX-FPGA-EXAMPLE-CODE — ADS98xx FPGA interface example code

Expedite your ADS98xx digital design with this Verilog module from Texas Instruments
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模擬型號

ADS9817 PSPICE Model

SBAM506.ZIP (75 KB) - PSpice 模型
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模擬型號

ADS9817 TINA-TI Reference Design

SBAM495 (37 KB) - TINA-TI 參考設計
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模擬型號

ADS98xx IBIS Model

SBAM514.ZIP (41 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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VQFN (RSH) 56 Ultra Librarian
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