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ADS7038-Q1

ACTIVE

Automotive, 8-channel, 1-MSPS, 12-bit analog-to-digital converter (ADC) with SPI, GPIOs and CRC

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Data sheet

ADS7038-Q1

ACTIVE
Data sheet Order now

Product details

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 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, 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) 72.9 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 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, 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) 72.9 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:
    • WQFN 3 mm × 3 mm
    • 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
  • Analog watchdog:
    • Programmable thresholds per channel
    • Event counter for transient rejection
  • Wide operating ranges:
    • AVDD: 2.35 V to 5.5 V
    • DVDD: 1.65 V to 5.5 V
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz interface
  • 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
  • Turbo comparator mode with speeds up to3.2 MSPS
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Small package size:
    • WQFN 3 mm × 3 mm
    • 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
  • Analog watchdog:
    • Programmable thresholds per channel
    • Event counter for transient rejection
  • Wide operating ranges:
    • AVDD: 2.35 V to 5.5 V
    • DVDD: 1.65 V to 5.5 V
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz interface
  • 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
  • Turbo comparator mode with speeds up to3.2 MSPS

The ADS7038-Q1 is an easy-to-use, 8-channel, multiplexed, 12-bit, 1-MSPS, 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-Q1 communicates through an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7038-Q1 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-Q1 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration.

The ADS7038-Q1 is an easy-to-use, 8-channel, multiplexed, 12-bit, 1-MSPS, 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-Q1 communicates through an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7038-Q1 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-Q1 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration.

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Technical documentation

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* Data sheet ADS7038-Q1 Small, 8-Channel, 12-Bit ADC With SPI Interface, GPIOs, and CRC datasheet (Rev. A) Nov 4, 2020
Application brief Zonal Architecture and MCU I/O Expansion PDF | HTML Feb 2, 2023
Functional safety information ADS7038-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML Mar 21, 2022
Technical article How an automotive ADC can help designers achieve functional safety in ADAS PDF | HTML Jun 9, 2020

Design & development

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Evaluation board

ADS7038Q1EVM-PDK — ADS7038-Q1 8-channel, 1-MSPS, 12-bit ADC evaluation module performance demonstration kit (PDK)

The ADS7038-Q1 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS7038-Q1 successive approximation register (SAR) analog-to-digital converter (ADC). ADS7038Q1EVM-PDK provides power and a communications card to easily connect to the (...)

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Evaluation board

BP-ADS7128 — ADS7128 8-channel 12-bit ADC BoosterPack™ plug-in module

The BP-ADS7128 BoosterPack™ plug-in module is a platform for evaluating the performance of the successive approximation register (SAR) analog-to-digital converter (ADC) ADS7128 device and family of devices, which are analog, nanopower, eight-input-channel devices with an I/O expander.

BP-ADS7128 is (...)

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Support software

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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Calculation tool

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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Design tool

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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