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A7840 Isolation Amplifier SMD IC SOP-8
- Stock: Out Of Stock
- SKU: 7117 | DAF499
-
Rs. 254.88 (inc GST)
Rs.216.00 + GSTQty :
GST Invoice: Available for all purchases — eligible for input tax credit.
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A7840 Isolation Amplifier SMD IC SOP-8
A7840 Isolation Amplifier SMD IC SOP-8
The HCPL-7840 isolation amplifier family was designed for current sensing in electronic motor drives. In a typical implementation, motor currents flow through an external resistor and the resulting analog voltage drop is sensed by the HCPL-7840. A differential output voltage is created on the other side of the HCPL-7840 optical isolation barrier. 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 there commended application circuit.
Since common-mode voltage swings of several hundred volts in tens of nanoseconds are common in modern switching inverter motor drives, the HCPL-7840 was designed to ignore very high common-mode transient slew rates (of at least 10 kV/µs).
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Features of A7840 Isolation Amplifier SMD IC SOP-8
- 15 kV/µs Common-Mode Rejection at VCM = 1000 V
- Compact, Auto-Insertable Standard 8-pin DIP Package
- 0.3 mV Input Offset Voltage
- 100 kHz Bandwidth
- 0.004% Nonlinearity
- Worldwide Safety Approval: UL 1577 (3750 V rms /1 min.) and CSA (pending), VDE 0884 (Option #060 only)
- Fully Differential Circuit Topology
Applications of GR 400 2R5-K Resistor
- Motor Phase and Rail Current Sensing
- Inverter Current Sensing
- Switched Mode Power Supply Signal Isolation
- General Purpose Current Sensing and Monitoring
- General Purpose Analog Signal Isolation
Package Includes
1 x A7840 Isolation Amplifier SMD IC SOP-8
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