HCNR201-550E

The Broadcom® HCNR200/201 high-linearity analog
optocoupler consists of a high-performance AlGaAs LED
that illuminates two closely matched photodiodes. The input
photodiode monitors, and therefore stabilizes, the light
output of the LED. As a result, the nonlinearity and drift
characteristics of the LED can be virtually eliminated. The
output photodiode produces a photocurrent that is linearly
related to the light output of the LED. The close matching of
the photodiodes and advanced design of the package
ensure the high linearity and stable gain characteristics of
the optocoupler.
The HCNR200/201 isolates analog signals in a wide variety
of applications that require good stability, linearity,
bandwidth, and low cost. The HCNR200/201 is flexible and,
by appropriate design of the application circuit, is capable of
operating in many different modes, including unipolar/
bipolar, AC/DC and inverting/noninverting. The
HCNR200/201 is an excellent solution for many analog
isolation problems.