Methods and apparatus for sharing digital-to-analog (DAC) converters in a reconfigurable DAC circuit to support two or more transmit chains of a wireless transmitter configured for different radio access technologies (RATs) and/or different transmitter architectures. One example DAC circuit generally includes at least four DACs and a plurality of switches coupled to outputs of the at least four DACs such that the DAC circuit is configured as a multi-channel DAC circuit with at least four channels for a first set of one or more frequency bands and as an interleaved DAC circuit with at least two channels for a second set of one or more frequency bands different from the first set of frequency bands.

An A/D converter includes: an integrator circuit executing modulation to an analog signal to be converted; an adder outputting an addition result of at least an output signal of the integrator circuit and a first reference signal as a reference signal of modulation; a quantizer receives an output signal of the integrator circuit, an output signal of the adder, and a second reference signal as a reference signal in cyclic A/D conversion to generate a result of quantization of the output signal of the integrator circuit and the output signal of the adder; and a controller is configured to switch between a modulation mode and a cyclic mode.

An analog/digital conversion device that performs analog/digital conversion on an analog signal having different levels using different analog/digital conversion circuits, and a control method therefor are provided. In a case where an analog signal is greater than a threshold value, an output terminal of a first changeover switch is turned on. The analog signal is converted into digital data in a single slope type analog/digital conversion circuit. In a case where the analog signal is smaller than the threshold value, an output terminal of the first changeover switch is turned on. The analog signal is converted into digital data in a hybrid type analog/digital conversion circuit of which precision of conversion of the analog signal greater than the threshold value into digital data is lower than the precision of a single slope type analog/digital conversion circuit.

An analog/digital conversion device that performs analog/digital conversion on an analog signal having different levels using different analog/digital conversion circuits, and a control method therefor are provided. In a case where an analog signal is greater than a threshold value, an output terminal of a first changeover switch is turned on. The analog signal is converted into digital data in a single slope type analog/digital conversion circuit. In a case where the analog signal is smaller than the threshold value, an output terminal of the first changeover switch is turned on. The analog signal is converted into digital data in a hybrid type analog/digital conversion circuit of which precision of conversion of the analog signal greater than the threshold value into digital data is lower than the precision of a single slope type analog/digital conversion circuit.

The present disclosure relates to a sensor circuit having a first interface configured to receive a first sensor signal in response to a first measurement of a first physical quantity, a first analog-to-digital converter configured to sample the first sensor signal to generate a sampled first sensor signal, a second interface configured to receive a second sensor signal in response to a second measurement of the same first physical quantity, a third interface configured to receive at least one third sensor signal in response to at least one third measurement of at least one second physical quantity that is different from the first physical quantity, a multiplexer configured to multiplex the second and the at least one third sensor signal to a multiplexed sensor signal, and a second analog-to-digital converter coupled to the multiplexer and configured to sample the multiplexed sensor signal to generate a sampled multiplexed sensor signal.