ADC / Temperature Sensor
The M31 SAR ADC provides a rich portfolio with a resolution from 10 to 12-bit, maximum speed up to 2.5MSPS, and supports input types of single-ended or differential that give users great flexibility in their ASIC/SoC integration.
With patented innovative circuit techniques, the ADC can perform conversion as fast as the clock rate that is not commonly seen in the conventional SAR ADCs which often require a clock rate (Bit+N) X faster than the conversion rate. This feature eases the design complexity of system clock arrangement (and also the PLL/OSC) and saves power because of a reduced clock rate used by the ADC.
The ADC is intentionally designed to consume as small as possible current from the supply by combining several circuit techniques such that the ADC features an ultra-low-power (ULP) consumption. The ADC best suits the applications demanding extremely low power consumption like battery-powered products and Internet-of-Things (IoT).
Block Diagram
ADC Features
- Ultra Low Power : 12nm ADC, <0.6mA at 2.5MSPS, 1.8V
- Compact Size : <150um x 150um (12nm, exclude pad, primary ESD clamp)
- Wide Operating Range Supply: 1.8V ±10%
- Temperature: -40°C to 125°C
- Excellent Performance : 12-Bit Resolution with No Missing Code (NMC)
- ±1-LSB (Max) DNL and ±2-LSB (Max) INL
- Input Type Flexibility
- Single-ended or differential
Temperature Sensor Features
- Capable of sensing voltage or current within one smart sensor
- Easy to drive with inherent filtering and programmable gain adjustment
- Ultra low power & compact area