SoC measures multiple analog signals in automotive, industrial applications

Maxim Integrated Products has expanded its line of MAXQ mixed-signal microcontrollers with the MAXQ7670A, a system-on-chip (SoC) mixed-signal microcontroller that integrates all the functions needed to accurately measure small-amplitude differential analog input signals.

The MAXQ7670A pushes mixed-signal performance of the previously introduced MAXQ7670 to the 12-bit level, enabling measurements in the microvolt range from various types of sensors, such as anisotropic magnetoresistive (AMR) sensors. Designed to digitize and process signals in harsh, space-constrained environments, this SoC is well-suited for automotive applications such as steering, braking, and throttle-position control, as well as industrial control applications such as valve positioning and shaft rotation. The on-chip RISC CPU and embedded CAN bus controller allow real-time data processing for smart sensor networks.

Key highlights:

• On-chip programmable gain control on each input channel
• Eight single-ended/four differential inputs,
• Programmable-gain differential amplifier (1x or 16x)
• 125ksps ADC with 12-bit resolution
• Watchdog timer
• CAN 2.0B controller, SPI interface, JTAG interface, seven general-purpose I/Os.
• 16-bit RISC MAXQ microcontroller core
• 2KB of SRAM for data and 64KB of automotive-grade flash memory
• 5mm x 5mm, 40-pin TQFN package
• Specified over the -40ºC to +125ºC automotive temperature range

Pricing: Starts at $3.58 (1000-up, FOB USA). An evaluation kit is available to speed designs.

Availability: Now.

Datasheet: Click here.