Single-chip multi-stimulus sensor controller

An apparatus for transmitting a plurality of drive signals simultaneously to a sensor, the apparatus comprising:

• transmit logic that generates one or more digital signals;
• an oscillator connected to the transmit logic, wherein the transmit logic generates the one or more digital signals based on a frequency of the oscillator;
• a digital-to-analog converter (DAC) that converts the one or more digital signals into one or more analog signals;
• an analog bus that receives the one or more analog signals from the DAC;
• a plurality of analog multiplexers (MUXs) connected to the analog bus, each MUX selecting one of a plurality of bus signals of the analog bus for transmission to the sensor as a drive signal, wherein the bus signals include the one or more analog signals from the DAC;
• and a plurality of analog output buffers connected to the MUXs, that buffer the selected drive signals for transmission to the sensor.