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ADS7138-Q1

現行

具有 I2C、GPIO 和 CRC 的車用 8 通道、140-kSPS、12 位元類比轉數位轉換器 (ADC)

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產品規格表

ADS7138-Q1

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 12 Sample rate (max) (ksps) 140 Number of input channels 8 Interface type I2C Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Supply Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Comparator, Digital Window Comparator, GPIO, Oscillator, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 0.05 Analog supply voltage (min) (V) 2.3 Analog supply voltage (max) (V) 5.5 SNR (dB) 69 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
Resolution (Bits) 12 Sample rate (max) (ksps) 140 Number of input channels 8 Interface type I2C Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Supply Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Comparator, Digital Window Comparator, GPIO, Oscillator, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 0.05 Analog supply voltage (min) (V) 2.3 Analog supply voltage (max) (V) 5.5 SNR (dB) 69 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Small package size:
    • 3-mm × 3-mm WQFN
    • Wettable flanks for visual inspection of solder joints
  • 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
  • Wide operating ranges:
    • AVDD: 2.35 V to 5.5 V
    • DVDD: 1.65 V to 5.5 V
    • –40°C to +125°C temperature range
  • CRC for read/write operations:
    • CRC on data read/write
    • CRC on power-up configuration
  • I2C interface:
    • Up to 3.4 MHz (high-speed mode)
    • 8 configurable I2C addresses
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 16-bit resolution for average output
  • Turbo comparator mode with speeds up to 3.2 MSPS
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Small package size:
    • 3-mm × 3-mm WQFN
    • Wettable flanks for visual inspection of solder joints
  • 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
  • Wide operating ranges:
    • AVDD: 2.35 V to 5.5 V
    • DVDD: 1.65 V to 5.5 V
    • –40°C to +125°C temperature range
  • CRC for read/write operations:
    • CRC on data read/write
    • CRC on power-up configuration
  • I2C interface:
    • Up to 3.4 MHz (high-speed mode)
    • 8 configurable I2C addresses
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 16-bit resolution for average output
  • Turbo comparator mode with speeds up to 3.2 MSPS

The ADS7138-Q1 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 ADC conversion processes.

The ADS7138-Q1 communicates via an I2C-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7138-Q1 implements 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 ADS7138-Q1 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration.

The ADS7138-Q1 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 ADC conversion processes.

The ADS7138-Q1 communicates via an I2C-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7138-Q1 implements 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 ADS7138-Q1 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration.

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技術文件

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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 ADS7138-Q1 Small, 8-Channel, 12-Bit ADC With I2C Interface, GPIOs, and CRC datasheet (Rev. A) 2020/10/27
功能安全資訊 ADS7138-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2022/3/9
技術文章 How an automotive ADC can help designers achieve functional safety in ADAS PDF | HTML 2020/6/9
使用指南 BP-ADS7128 BoosterPack™ Plug-In Module User's Guide 2019/5/21

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)。

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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無法提供
模擬型號

ADS7128 IBIS Model

SBAM437.ZIP (139 KB) - IBIS 模型
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模擬型號

ADS7128 TINA-TI Reference Design

SBAM429.TSC (274 KB) - TINA-TI 參考設計
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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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