HCNR201 high linearity analog optocoupler isolator


 The HCNR201 high-linearity analog optocoupler consists of a high-performance AlGaAs LED that illuminates two closely matched photodiodes. The input photodiode can be used to monitor, and therefore stabilize, 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 photodiode and advanced design of the package ensure the high linearity and stable gain characteristics of the optocoupler.

The HCNR201 can be used to isolate analog signals in a wide variety of applications that require good stability, linearity, bandwidth and low cost. The HCNR201 is very flexible and, by appropriate design of the application circuit, is capable of operating in many different modes, including: unipolar/bipolar, AC/DC and inverting/non-inverting. The HCNR201 is an excellent solution for many analog isolation problems.


Low Cost Analog Isolation

Telecom: Modem, PBX

Industrial Process Control:

Transducer Isolater

Isolater for Thermocouplers

4 mA to 20 mA Loop Isolation

SMPS Feedback Loop, SMPS Feedforward

Monitor Motor Supply Voltage





Low Nonlinearity: 0.01%

K3 (IPD2/IPD1) Transfer Gain: /-5%

Low Gain Temperature Coefficient: -65 ppm/ degrees C

Wide Bandwidth - DC to > 1 MHz

Worldwide Safety Approval:

UL 1577 Recognized (5 kV rms/1 min Rating)

CSA Approved

IEC/EN/DIN EN 60747-5-2 Approved VIORM = 1414 V peak (Option 050)

Surface Mount Option Available (Option 300)

8-Pin DIP Package - 0.400" Spacing

Allows Flexible Circuit Design

Special Selection for HCNR201: Tighter K1, K3 and Lower Nonlinearity Available

Options available are:

060 = IEC/EN/DIN/EN 60747-5-2 VIORM = 1414 V peak Option

300 = Gull Wing Surface Mount Lead Option

500 = Tape/Reel Package Option (1 k min.)

XXXE = Lead Free Option



6 JD
9 in stock
6 JD 1+ units
5.7 JD 10+ units
5.4 JD 25+ units
5.1 JD 100+ units

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