Texas Instruments

ADS7038 8-Channel 12-Bit Analog-to-Digital Converter (ADC)

Texas Instruments' ADC features an enhanced SPI interface, GPIOs, and CRC

Image of Texas Instruments' ADS7038 8-Channel 12-Bit ADCTexas Instruments' ADS7038 is an easy-to-use, 8-channel, multiplexed, 12-bit, 1 MSPS successive approximation register (SAR) ADC. The eight channels can be independently configured as analog inputs, digital inputs, or digital outputs. The device has an internal oscillator for the ADC conversion process.

The ADS7038 communicates via an SPI-compatible interface and operates in autonomous or single-shot conversion mode. This ADC 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.

Features
  • Small package: 3 mm x 3 mm WQFN
  • Eight channels configurable combinations:
    • Up to eight 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
  • Enhanced SPI digital interface:
    • High-speed, 60 MHz interface
    • Achieves full throughput with >13.5 MHz SPI
  • CRC on data read/write and power-up configuration
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 16-bit resolution
Applications
  • Macro remote radio units (RRUs)
  • Battery management systems (BMS)
  • String inverters
  • Central inverters

ADS7038 8-Channel 12-Bit ADCs

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC ADC 12BIT SAR 16WQFNADS7038IRTERIC ADC 12BIT SAR 16WQFN5406 - Immediate$58.53View Details
IC ADC 12BIT SAR 16WQFNADS7038IRTETIC ADC 12BIT SAR 16WQFN250 - Immediate$93.02View Details

Evaluation Board

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EVALUATION BOARD FOR ADS7128BP-ADS7128EVALUATION BOARD FOR ADS712810 - Immediate$740.80View Details
Published: 2020-02-07

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