We propose a low-power voltage reference of which temperature coefficient (TC) and absolute output level are independently adjustable. It enables to optimize TC without sacrificing output level distribution, compared with the previous works. The design provides separate control by employing a DAC using diode-connected PFETs and an analog multiplexer. Fabricated in a 180 nm CMOS process, the proposed circuit generates a stable reference voltage of 192 mV on average, with a ±3σ inaccuracy of 8.8 mV from 0 to 75 oC (10 samples), while consuming only 35.8 pW at 0.6 V and 25 oC.