The MVFD01 is a programmable frequency-to-digital converter that is designed to be easily integrated with MEMS resonators. The chip features a versatile low noise amplifier (LNA) with a programmable gain and feedthrough capacitance cancellation, in order to accommodate different MEMS resonators.
The ASIC is also equipped with a programmable pulse-width-modulation (PWM) driver. This output is available on multiple pads, and its duty cycle can be controlled to drive varying currents through heater resistors that are often used with MEMS resonators.
Frequency-to-Digital Converter for MEMS Resonators
Overview
Key Features
- Supports resonators up to 3MHz
- Extended supply voltage range: 2.7 to 5.5V
- Wide operating temperature range: -40 to 85°C
- Trimmable feedthrough capacitance-cancelation feature, to ensure oscillation and improve noise performance
- Low-noise and high-gain oscillator circuit that supports resonators with motional resistances up to 50k
- Operating temperature range from -40 to 85°C
- Frequency resolution settings up to 16-Bit
- Supports I2C and UART communication protocols
- Optional external crystal interface for low noise measurements
- Low standby currents <12nA
Block Diagram
Applications
- Microbalances
- Biosensing
Technical Specifications
Foundry, Node
TSMC 0.18um
Maturity
Silicon Proven
Availability
Available
TSMC
Silicon Proven:
180nm