Isolation Amplifier 1 Circuit Differential 8-DIP Gull Wing. ACPLTE Broadcom / Avago Optically Isolated Amplifiers kHz, vrms 30ppm/C Gain Drift datasheet, inventory & pricing. Buy ACPLTE Broadcom, Isolation Amplifier ACPLTE. Browse our latest isolation-amplifiers offers. Free Next Day Delivery.

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If a dedicated supply is required, in many cases it is possible to add an additional winding on an existing transformer. What is Production Packaging? A floating power supply which in many applications could be the same supply that is used to 872t the high-side power transistor is regulated to 5 V using a simple zener diode D1 ; the value of resistor R4 should be chosen to supply 7782t current from the existing floating supply.

RoHS Certificate of Compliance. Save to an existing parts list Save to a new parts list. Motor Output Horsepower vs.

Broadcom, ACPL-782T-300E DC Input Transistor Output Optocoupler, Surface Mount, 8-Pin DIP

This differential output voltage is proportional to the motor current and can be converted to a single-ended signal by using an op-amp as shown in the recommended application circuit. Thank you for your feedback. The magnitude of the output quantization noise is very small at lower frequencies below 10kHz and increases with increasing frequency.

The product can also be used for general analog signal isolation applications requiring high accuracy, stability, and linearity under similarly severe noise conditions. The Input-Output Momentary Withstand Voltage is a dielectric voltage rating that should not be interpreted as an input-output continuous voltage rating.

The maximum average power dissipation in the sense resistor can also be easily calculated by multiplying the sense resistance times the square of the maximum RMS current, which is about 1 W in the previous example. This test mode is for testing LED coupling and is not intended for customer use.

The only direct connection between the ACPLT circuit and the gate drive circuit should be the positive power supply line. By referencing the input circuit to the negative side of the sense resistor, any load current induced noise transients on the resistor are seen as a common-mode signal and will not interfere with the current-sense signal.


First, the effective resistance of the sense resistor can become dependent on factors such as how long the leads are, how they are bent, how far they are inserted into the board, and how far solder wicks up the leads during assembly these issues will be discussed in more detail shortly. The product detailed below complies with the specifications published by RS Components.

In a typical implementation, and motor currents flow through an external resistor and the resulting analog voltage drop is sensed by the ACPLT. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. The Manufacturers and RS reserve the right to change this Information at any time without notice. Note 13 4,15 The PC board should use 2 or 4 oz. Input Offset Voltage vs.

Save this item to a new parts list. The selected value of the sense resistor will fall somewhere between the minimum and maximum values, depending on the particular requirements of a specific design. Otherwise, some sort of simple isolated supply can be used, such as a line powered transformer or a high-frequency DC-DC converter.

RoHS Certificate of Compliance. Recommended Supply and Sense Resistor Connections. The Kelvin connections to the resistor should be brought together under the body of the resistor and then run very close to each other to the input of the ACPLT; this minimizes the loop area of the connection and reduces the possibility of stray magnetic fields from interfering with the measured signal.

The input filter also performs an important reliability function—it reduces transient spikes from ESD events flowing through the current sensing resistor. Assuming a maximum input voltage of mV, the maximum value of sense resistance in this case would be about 10 m:. Input Offset Voltage Test Circuit. ACPLT problem understanding datasheet.

Contact your Avago sales representative or authorized distributor for information. This has two primary effects on resistor accuracy. The internal output filter does 78t most, but not all, of the sigmadelta quantization noise. The corresponding drift figures are normalized to the nominal operating conditions and show how much drift occurs as the par-ticular drift parameter is varied from its nominal value, with all other parameters held at their nominal operating values.


ACPLTE Broadcom | Opto, Avago, ACPLTE | | RS Components

Numerous platedthrough vias should surround each non-Kelvin terminal of the sense resistor to help distribute the current between the layers of the PC board. Forums New posts Search forums. The power supply for the ACPL T is most often obtained from the same supply used to power the power transistor gate drive circuit. Both of these effects are eliminated when a four-terminal current sensing resistor is used. This performance is delivered in a scpl, auto-insertable, industry standard 8-pin DIP package that meets worldwide regulatory safety standards.

Add to a parts list. The graph in Figure 20 shows the RMS current in each phase of a threephase induction motor as a function of average axpl output power in horsepower, hp and motor drive supply voltage.

Started by fastline Yesterday at 8: This is a two-terminal measurement: Gain and Nonlinearity Test Circuit. Save 782 item to a new parts list. You agree that the Information as provided here through an intermediary may not be error-free, accurate or up-to-date and that it is not advice.

On page 16 of the datasheet is the recommended circuit for voltage sensing application I want to stick to it. Because of the switched-capacitor nature of the input sigma-delta converter, time-averaged values are shown.

Output Side The op-amp used in the external post-amplifier circuit should be of sufficiently high precision so that it does not contribute a significant amount of offset or offset drift relative to the contribution from the isolation amplifier.

Sending feedback, please wait Just saying hello Started by MichaelaJoy Yesterday at 6: This is the Absolute Value of Gain Change vs.