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ADS8557

現行

670kSPS 14 位元 6 通道同步取樣 ADC

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產品規格表

ADS8557

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 14 Sample rate (max) (ksps) 670 Number of input channels 6 Interface type Byte-Wide, Parallel, SPI Architecture SAR Input type Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Daisy-Chainable, Oscillator Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 335 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 85 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 14 Sample rate (max) (ksps) 670 Number of input channels 6 Interface type Byte-Wide, Parallel, SPI Architecture SAR Input type Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Daisy-Chainable, Oscillator Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 335 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 85 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
LQFP (PM) 64 144 mm² 12 x 12
  • Family of 16-, 14-, 12-Bit, Pin- and
    Software-Compatible ADCs
  • Six SAR ADCs Grouped in Three Pairs
  • Maximum Data Rate Per Channel with Internal
    Conversion Clock and Reference:
    ADS8556: 630 kSPS (PAR) or 450 kSPS (SER)
    ADS8557: 670 kSPS (PAR) or 470 kSPS (SER)
    ADS8558: 730 kSPS (PAR) or 500 kSPS (SER)
  • Maximum Data Rate with External Conversion
    Clock and Reference:
    800 kSPS (PAR) or 530 kSPS (SER)
  • Pin-Selectable or Programmable Input Voltage
    Ranges: Up to ±12 V
  • Excellent Signal-to-Noise Performance:
    ADS8556: 91.5 dB, ADS8667: 85 dB,
    ADS8668: 73.9 dB
  • Programmable and Buffered Internal Reference:
    0.5 V to 2.5 V and 0.5 V to 3.0 V
  • Comprehensive Power-Down Modes:
    • Deep Power-Down (Standby Mode)
    • Partial Power-Down
    • Auto-Nap Power-Down
  • Selectable Parallel or Serial Interface
  • Operating Temperature Range: –40°C to 125°C
  • Family of 16-, 14-, 12-Bit, Pin- and
    Software-Compatible ADCs
  • Six SAR ADCs Grouped in Three Pairs
  • Maximum Data Rate Per Channel with Internal
    Conversion Clock and Reference:
    ADS8556: 630 kSPS (PAR) or 450 kSPS (SER)
    ADS8557: 670 kSPS (PAR) or 470 kSPS (SER)
    ADS8558: 730 kSPS (PAR) or 500 kSPS (SER)
  • Maximum Data Rate with External Conversion
    Clock and Reference:
    800 kSPS (PAR) or 530 kSPS (SER)
  • Pin-Selectable or Programmable Input Voltage
    Ranges: Up to ±12 V
  • Excellent Signal-to-Noise Performance:
    ADS8556: 91.5 dB, ADS8667: 85 dB,
    ADS8668: 73.9 dB
  • Programmable and Buffered Internal Reference:
    0.5 V to 2.5 V and 0.5 V to 3.0 V
  • Comprehensive Power-Down Modes:
    • Deep Power-Down (Standby Mode)
    • Partial Power-Down
    • Auto-Nap Power-Down
  • Selectable Parallel or Serial Interface
  • Operating Temperature Range: –40°C to 125°C

The ADS855x contains six low-power, 16-, 14-, or 12-bit, successive approximation register (SAR) based analog-to-digital converters (ADCs) with true bipolar inputs. Each channel contains a sample-and-hold circuit that allows simultaneous high-speed multi-channel signal acquisition.

The ADS855x supports data rates of up to 730 kSPS in parallel interface mode or up to 500 kSPS if the serial interface is used. The bus width of the parallel interface can be set to eight or 16 bits. In serial mode, up to three output channels can be activated.

The ADS855x is specified over the full industrial temperature range of –40°C to 125°C and is available in an LQFP-64 package.

The ADS855x contains six low-power, 16-, 14-, or 12-bit, successive approximation register (SAR) based analog-to-digital converters (ADCs) with true bipolar inputs. Each channel contains a sample-and-hold circuit that allows simultaneous high-speed multi-channel signal acquisition.

The ADS855x supports data rates of up to 730 kSPS in parallel interface mode or up to 500 kSPS if the serial interface is used. The bus width of the parallel interface can be set to eight or 16 bits. In serial mode, up to three output channels can be activated.

The ADS855x is specified over the full industrial temperature range of –40°C to 125°C and is available in an LQFP-64 package.
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重要文件 類型 標題 格式選項 日期
* Data sheet ADS855x 16-, 14-, 12-Bit, Six-Channel, Simultaneous Sampling Analog-to-Digital Converters datasheet (Rev. D) PDF | HTML 2016年 2月 3日
Application note A Numerical Protection Relay Solution (Rev. A) 2018年 7月 26日
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 2015年 5月 21日
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 2011年 3月 17日

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

ADS8555EVM-PDK — 適用六通道同步取樣 ADC 的 ADS8555 評估模組

ADS8555 評估模組 (EVM) 性能展示套件 (PDK) 是用於評估 ADS855x 系列之六通道同步取樣類比數位轉換器 (ADC) 的平台。ADS855x 產品包含整合式電壓參考，可適應 ±12-V 輸入。

ADS8555EVM-PDK 包含 ADS8555 評估板和精密主機介面 (PHI) 控制器板，可讓隨附的電腦軟體透過通用序列匯流排 (USB) 與 ADC 通訊，以進行資料擷取及分析。

使用指南: PDF | HTML
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模擬型號

ADS8555/6/7/8 IBIS Model (Rev. B)

SBAM011B.ZIP (80 KB) - IBIS Model
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計算工具

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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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
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模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

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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LQFP (PM) 64 Ultra Librarian
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