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A7800A

The Avago Technologies A7800A is an isolation amplifier designed for current sensing in electronic motor drives. It offers high common-mode transient slew rate rejection and precision gain tolerance.

✓ Total Stock: 728 pcs

$ Price Range: $0.99

A7800A Available from 1 distributor

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A7800A Specifications Quick View

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Category	New Products
Manufacturer Name	Avago Technologies

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A7800A Description

Short technical summary and product information.

The HCPL-7800(A) isolation amplifier family, including the A7800A model from Avago Technologies, is engineered for accurate current sensing in electronic motor drives. This device operates by sensing the voltage drop across an external resistor, converting it into a differential output voltage across an optical isolation barrier. This output is proportional to the motor current and can be further processed using an op-amp.

Designed to withstand the harsh conditions of modern switching inverter motor drives, the HCPL-7800(A) can ignore very high common-mode transient slew rates, specified at a minimum of 10 kV/µs. This high Common-Mode Rejection (CMR) capability ensures precision and stability, crucial for accurately monitoring motor current in noisy environments and achieving smoother motor control with reduced torque ripple.

The A7800A variant offers part-to-part gain tolerance of ±1%, making it suitable for precision applications. For general-purpose analog signal isolation requiring high accuracy, stability, and linearity under severe noise conditions, the HCPL-7800 is recommended with a gain tolerance of ±3%.

The HCPL-7800(A) utilizes sigma-delta (Σ-Δ) analog-to-digital converter technology and chopper-stabilized amplifiers, contributing to its high performance in demanding applications.

A7800A Quick Information

Product Type: Isolation Amplifier

Canonical Name: A7800A Isolation Amplifier

A7800A Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

A7800A Estimated Pricing

Qty	Low	High
1+	$0.99	$0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

A7800A Features

Designed for current sensing in motor drives.
High common-mode transient slew rate rejection.
Precision applications with ±1% gain tolerance.
Utilizes sigma-delta ADC technology.
Suitable for general analog signal isolation.

A7800A Applications

Electronic motor drive current sensing.
High noise motor control environments.
General analog signal isolation.
Reducing torque ripple in motor control.
Precision current monitoring applications.

A7800A FAQs

3 frequently asked questions generated from this part’s specifications.

What is the gain tolerance for the A7800A?

The A7800A offers a part-to-part gain tolerance of ±1% for precision applications.

What is the common-mode transient slew rate rejection capability?

The HCPL-7800(A) is designed to ignore very high common-mode transient slew rates, with a minimum specification of 10 kV/µs.

What technology does the A7800A utilize?

The A7800A utilizes sigma delta (Σ-Δ) analog-to-digital converter technology and chopper-stabilized amplifiers.