ADS7038QRTERQ1

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.

Applications

• Battery management systems (BMS)
• Automotive cluster displays
• Inverter and motor controls
• Onboard (OBC) and wireless chargers

Key features

• AEC-Q100 qualified for automotive applications: Temperature grade 1: -40°C to +125°C, TA
• Small package size:
• WQFN 3mm×3mm
• 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 to 3.2 MSPS