An analog-digital conversion circuit includes a comparator that receives an analog input signal. A controller generates an N1-bit first signal and an N2B-bit second signal in accordance with an output signal from the comparator. A first digital-analog converter generates a first reference signal from the first signal. A second digital-analog converter generates a second reference signal from the second signal. A correction circuit corrects the first and second signals to generate a digital output signal. The N2B-bit second signal is acquired by adding a Kbit correction signal to an N2A-bit signal. The controller sequentially sets bit values of the first signal and bit values of the second signal in accordance with the output signal of the comparator. The correction circuit generates the (N1+N2A)-bit digital output signal based on a sum of a value acquired by multiplying the N1-bit first signal by 2^N2A and a value of the N2B-bit second signal.