Touch driving circuit and touch display device

A touch driving circuit comprising a multiplexer with at least two channel switches connected to corresponding touch electrodes, a sensing unit connected to the multiplexer, wherein two or more of the channel switches can be turned on simultaneously and short-circuited together during a first sensing period, and the two or more channel switches configured to then be sequentially turned on in a second sensing period. Also disclosed is a touch display device comprising the above in addition to a display panel which comprises the touch electrodes. The electrodes may be shorted in a particular order, such as first with last. The distances between the electrodes and the multiplexer may be different, and shorting these may provide the benefit of equalling impedance between the electrodes of differing lengths.