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類比轉數位轉換器 (ADC)
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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 x 3
  • 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 日期
* Data sheet ADS7038x Small, 8-Channel, 12-Bit ADC With SPI Interface, GPIOs, and CRC datasheet (Rev. C) PDF | HTML 2024年 9月 5日
Application brief Resolution-Boosting ADS7138 Using Programmable Averaging Filter 2019年 12月 1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

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。

使用指南: PDF
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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 Reference Design
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模擬型號

TLA2528 TINA-TI Spice Model

SBAM431.ZIP (11 KB) - TINA-TI Spice 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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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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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 (...)
要求
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 (...)
使用指南: PDF
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WQFN (RTE) 16 Ultra Librarian
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