Manufacturer Part No: HCNRE. Order Code: Technical Datasheet: HCNRE Datasheet. See all Technical Docs. Broadcom HCNRE: available from 15 distributors. Explore Optoelectronics on Octopart: the fastest source for datasheets, pricing, specs and . HCNR/HCNR is UL Recognized with Vrms for 1 minute per UL . Mount. Wing & Reel 1 Minute rating VIORM = Vpeak. Quantity. E.

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Two example circuits that operate with bipolar input signals are discussed in the next section. High Speed High Precision 1. Hcnr201000e basic optocoupler con- sists of an LED and two photodiodes. Loop-powered mA current loop circuits. It’s a community-based project which helps to repair anything.

Units Test Conditions Fig. Download datasheet Kb Share this page. However, an additional amplifier is used to provide an appropriate offset voltage to the other amplifiers that exactly cancels the diode voltage drops to maintain circuit accuracy. Gull Wing Surface Mount Option Because a photodiode can conduct current in only one direction, two diodes D1 and D2 are used to steer the input current to the appropriate terminal of input photodiode PD1 to allow bipolar input currents.

Also notice that IPD1 is exactly proportional to VIN, giving a very linear relationship between the input voltage and the photodiode current. dztasheet

Data Sheet HCNR and HCNR High-Linearity Analog Optocouplers |

Typical photodiode leakage vs. The relationship between the input optical power and the output current of a photodiode is very linear. The output circuit does not directly generate an output voltage which is sensed by R2, it instead uses Q1 to generate an output current which flows through R3. The lower gains, higher input currents and higher offset datashet affect the accuracy of the circuit, but not the way it operates.


Package Outline Drawings LED input current vs. Contact your Avago sales representative or authorized distributor for information. Because the basic circuit operation has not changed, the circuit still has good gain stability.

External Creepage L IO2 Precision analog isolation amplifier.


This would reduce the loop gain of the input circuit, reducing hcjr201-000e accuracy and bandwidth. Besides the optocoupler, two external op-amps and two resistors are required. External Clearance L IO1 9. Diodes D1 and Dwtasheet help reduce crossover distortion by keeping both amplifiers active during both positive and negative portions of the input signal. This allows the designer to make perf- ormance trade-off s that would otherwise be diffi cult Test Parameter Symbol Device Min.

As mentioned above, only one optocoupler is used. Option datasheets are available.


K3 is calculated from the slope of the best fit line of IPD2 vs. Absolute Maximum Ratings Storage Temperature The input pho- todiode can be used to monitor, and therefore stabilize, the light output of the LED The fi nal circuit shown in Figure 19 isolates a bipolar analog signal using only one optocoupler and generates two output signals: Example Application Circuits The circuit shown in Figure 16 is a high-speed low-cost circuit designed for use in the feedback path of switchmode power supplies.


LED forward voltage vs. Option datasheets are available. Contact your Avago sales representative or authorized distributor for information. IMRR is defined as the ratio of the signal gain with signal applied to VIN of Figure 16 to the isolation mode gain with Datashwet connected to input common and the signal datahseet between the input dagasheet output commons at 60 Hz, expressed in dB.

RoHS 6 fully compliant options available. Figure 13 illustrates how to change the basic circuit to accommodate both positive and negative input and output voltages.

As a result, the non-linearity. CNR fig 8 IPD1 is equal to the current in R1 and is given by the following equation: It is advised that normal static precautions be taken in handling and assembly.

In the high-speed circuit discussed above, the input and output circuits are stabilized by reducing the local loop gains of hcnrr201-000e input and output circuits.

The output photodiode then converts the stable, linear light output of the LED into a current, which can then be converted back into a voltage by another amplifier.