The MAX6043CAUT41 is a series voltage reference from Analog Devices, offering a fixed 4.096V output with ±0.5% initial accuracy. Housed in a 6-lead SOT-23 package (SOT-6 supplier device package), it suits precision analog chains where board space is tight. Input range spans 6.1V to 40V, and the reference can source up to 10 mA — enough to bias an ADC reference input or a small sensor bridge without an external buffer.
Noise and drift — what the numbers mean for your signal chain
For a 16-bit ADC with a 4.096V reference, this noise floor contributes roughly 0.16 LSBs p-p at the low end — negligible for most industrial measurements, but worth derating if the ADC's own noise is near the same magnitude. Temperature coefficient is 65 ppm/°C typical. Quiescent supply current is 650 µA, making this reference viable for battery-powered instrumentation that wakes periodically to take a measurement.
No pin-compatible second source is listed on the manufacturer's cross-reference.