The OPA827 series of JFET operational amplifiers combine outstanding dc precision with excellent ac performance. These amplifiers offer low offset voltage (150μV, max), very low drift over temperature (0.5μV/°C, typ), low bias current (3pA, typ), and very low 0.1Hz to 10Hz noise (250nV PP, typ). The device operates over a wide supply voltage range, ±4V to ±18V on a low supply current (4.8mA/Ch, typ).