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類比轉數位轉換器 (ADC)
精確 ADC

ADS7038

現行

具有 SPI、GPIO 和 CRC 的 8 通道、1-MSPS 12 位元類比轉數位轉換器 (ADC)

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產品規格表

ADS7038

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 8 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Supply Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Comparator, GPIO, Oscillator, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 1.5 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 5.5 SNR (dB) 73.1 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 8 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Supply Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Comparator, GPIO, Oscillator, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 1.5 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 5.5 SNR (dB) 73.1 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • Small package size:
    • WQFN 3mm × 3mm
  • 8 channels configurable as any combination of:
    • Up to 8 analog inputs, digital inputs, or digital outputs
  • GPIOs for I/O expansion:
    • Open-drain, push-pull digital outputs
  • Analog watchdog:
    • Programmable thresholds per channel
    • Event counter for transient rejection
  • Wide operating ranges:
    • AVDD: 2.35V to 5.5V
    • DVDD: 1.65V to 5.5V
    • –40°C to +125°C temperature range
  • Enhanced-SPI digital interface:
    • High-speed, 60MHz interface
    • Achieve full throughput with >13.5MHz SPI
  • CRC for read/write operation:
    • CRC on data read/write
    • CRC on power-up configuration
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 16-bit resolution
  • Small package size:
    • WQFN 3mm × 3mm
  • 8 channels configurable as any combination of:
    • Up to 8 analog inputs, digital inputs, or digital outputs
  • GPIOs for I/O expansion:
    • Open-drain, push-pull digital outputs
  • Analog watchdog:
    • Programmable thresholds per channel
    • Event counter for transient rejection
  • Wide operating ranges:
    • AVDD: 2.35V to 5.5V
    • DVDD: 1.65V to 5.5V
    • –40°C to +125°C temperature range
  • Enhanced-SPI digital interface:
    • High-speed, 60MHz interface
    • Achieve full throughput with >13.5MHz SPI
  • CRC for read/write operation:
    • CRC on data read/write
    • CRC on power-up configuration
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 16-bit resolution

The ADS7038 is an easy-to-use, 8-channel, multiplexed, 12-bit, successive approximation register analog-to-digital converter (SAR ADC). The eight channels can be independently configured as either analog inputs, digital inputs, or digital outputs. The device has an internal oscillator for the ADC conversion process.

The ADS7038 communicates through an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7038 implements the analog watchdog function by event-triggered interrupts per channel using a digital window comparator with programmable high and low thresholds, hysteresis, and an event counter. The ADS7038 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration.

The ADS7038 is an easy-to-use, 8-channel, multiplexed, 12-bit, successive approximation register analog-to-digital converter (SAR ADC). The eight channels can be independently configured as either analog inputs, digital inputs, or digital outputs. The device has an internal oscillator for the ADC conversion process.

The ADS7038 communicates through an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7038 implements the analog watchdog function by event-triggered interrupts per channel using a digital window comparator with programmable high and low thresholds, hysteresis, and an event counter. The ADS7038 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration.

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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 ADS7038x Small, 8-Channel, 12-Bit ADC With SPI Interface, GPIOs, and CRC datasheet (Rev. C) PDF | HTML 2024/9/5
應用說明 A Simple, Java-Based CRC Calculator PDF | HTML 2026/3/4
Application brief Resolution-Boosting ADS7138 Using Programmable Averaging Filter 2019/12/1

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

ADS7038Q1EVM-PDK — ADS7038-Q1 8 通道、1-MSPS、12 位元 ADC 評估模組性能示範套件 (PDK)

ADS7038-Q1 評估模組 (EVM) 性能示範套件 (PDK) 是用於評估 ADS7038-Q1 漸近法暫存器 (SAR) 類比轉數位轉換器 (ADC) 性能的平台。ADS7038Q1EVM-PDK 提供電源與通訊卡，可透過 I/O 擴展器 ADC 輕鬆連接至類比、奈米功率、八輸入通道產品。

使用指南: PDF | HTML
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開發板

BP-ADS7128 — ADS7128 8 通道 12 位元 ADC BoosterPack™ 外掛程式模組

BP-ADS7128 BoosterPack™ 外掛模組是用於評估漸近法暫存器 (SAR) 類比轉數位轉換器 (ADC) ADS7128 裝置及裝置系列性能的平台，這些裝置是具有 I/O 擴展器的類比、奈米功率、八輸入通道裝置。

BP-ADS7128 旨在展示 ADS7128 的各種運作模式。可搭配 MSP-EXP432E401Y MCU LaunchPad™ 開發套件（另售）使用。

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支援軟體

ADS7038-C-EXAMPLE-CODE — ADS7038 example C code

Expedite your embedded design using this example C code for the ADS7038 product family
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模擬型號

TLA2528 TINA-TI Reference Design

SBAM432.TSC (272 KB) - TINA-TI 參考設計
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模擬型號

TLA2528 TINA-TI Spice Model

SBAM431.ZIP (11 KB) - TINA-TI Spice 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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計算工具

SBAR008 — ADS7xx8 CRC Calculator

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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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WQFN (RTE) 16 Ultra Librarian
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