The Analog Devices LT6658AHMSE-1.8#PBF is a dual-output series voltage reference that delivers a fixed 1.8 V on one channel and an adjustable output up to 6 V on the second, both from a single 4.5 V to 36 V input rail. It is built for precision analog chains — ADC/DAC reference, sensor excitation, or power-supply biasing — where initial accuracy of ±0.05% and temperature drift of 10 ppm/°C keep the system error budget tight. The dual-output architecture means one part replaces two single references, saving board area and improving thermal tracking between the two channels.
The dual-output, high-drive feature set means there is no direct pin-compatible second-source; the ADR44x family from ADI is a functional alternative but offers single output at lower drive current.