Part A
ACPL-C87A-500E
Công ty TNHH Broadcom
- Lifecycle
- Active
- Stock
- 7176 PCS
- Package
- SSO-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The ACPL-C87A-500E and ACPL-C78A-560E are both isolated analog-to-digital converter optocouplers from Broadcom's ACPL-C87x/C78x family, sharing a 16-pin SOIC wide-body package, 5 V supply, and sigma-delta modulation architecture. However, they differ in input signal range, isolation voltage rating, and specified operating temperature grade, so the ACPL-C78A-560E is a functional replacement candidate for the ACPL-C87A-500E only after validating the input range, isolation requirement, and thermal environment against the target application.
Package Type
High match
Input Signal Range
Validation required
Isolation Voltage
Validation required
Operating Temperature Range
Validation required
Parts at a glance
Part B
ACPL-C78A-560E
Công ty TNHH Broadcom
- Lifecycle
- Active
- Stock
- 7750 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ACPL-C87A-500E | ACPL-C78A-560E | Why it matters |
|---|---|---|---|
| Manufacturer Part Number | ACPL-C87A-500E | ACPL-C78A-560E | Distinct orderable part numbers indicate different product families and tape-and-reel packaging options, affecting direct drop-in substitution. |
| Function / Type | Isolation amplifier (optically isolated, sigma-delta modulator) | Isolation amplifier (optically isolated, sigma-delta modulator) | Both are isolated amplifiers, but the specific family designation determines the supported application circuit and reference design compatibility. |
| Input Signal Range | ±200 mV (nominal, with ±320 mV full-scale) | ±200 mV (nominal, with ±320 mV full-scale) | The input range must match the shunt or sensor output to avoid clipping or loss of resolution in current-sensing applications. |
| Isolation Voltage (UL) | 5000 Vrms for 1 minute | 5000 Vrms for 1 minute | Reinforced isolation rating determines suitability for high-voltage safety isolation in motor drive and power conversion systems. |
| Supply Voltage (VDD1 / VDD2) | 4.5 V to 5.5 V | 4.5 V to 5.5 V | Compatible supply rails ensure the device can be powered from the same system rails without additional regulation. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Industrial temperature range is required for reliable operation in harsh environments such as motor control and industrial automation. |
| Package / Mounting | Surface mount, 8-pin SOIC (stretched body) | Surface mount, 8-pin SOIC (stretched body) | Package footprint and pinout must match for PCB layout compatibility and automated assembly. |
| Data Rate / Bandwidth | Up to 20 MHz clock (sigma-delta modulator output) | Up to 20 MHz clock (sigma-delta modulator output) | Bandwidth determines the achievable measurement update rate and control loop response in current-sensing feedback paths. |
| Packaging Option | Tape and reel (500E suffix) | Tape and reel (560E suffix) | Tape-and-reel packaging is required for high-volume automated pick-and-place manufacturing lines. |
| Safety Certification | UL 1577, CSA, IEC/EN/DIN EN 60747-5-5 | UL 1577, CSA, IEC/EN/DIN EN 60747-5-5 | Regulatory certifications are mandatory for end-product compliance in industrial and medical isolation applications. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ACPL-C87A-500E | ACPL-C78A-560E |
|---|---|---|
| Supplier | - | Broadcom Limited |
| Part Status | Active | Active |
| Amplifier Type | Isolation | Isolation |
| Number of Circuits | 1 | 1 |
| Output Type | Differential | Differential |
| -3 dB Bandwidth | 100 kHz | 100 kHz |
| Voltage - Input Offset | 300 µV | 300 µV |
| Supply Current | 10.5mA | 11mA |
| Current - Output / Channel | 30 mA | 18.6 mA |
| Voltage - Supply Span(Min) | 3 V | 4.5 V |
| Voltage - Supply Span(Max) | 5.5 V | 5.5 V |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Current - Input Bias | 1.5 nA | - |
Frequently asked questions
What are the ACPL-C87A-500E and ACPL-C78A-560E?
The ACPL-C87A-500E and ACPL-C78A-560E are Broadcom optically isolated amplifier components designed for current and voltage sensing in power conversion and motor drive applications. Both devices use sigma-delta modulation and optical coupling to provide galvanic isolation between high-voltage and low-voltage circuits.
What is the key difference between the ACPL-C87A-500E and ACPL-C78A-560E?
The primary difference is their specified isolation voltage and package option. The ACPL-C87A-500E is rated for 5 kVrms isolation for 1 minute per UL 1577, while the ACPL-C78A-560E is rated for 5 kVrms isolation for 1 minute per UL 1577 as well, but the ACPL-C78A-560E is supplied in a 560E tape and reel packaging option. Designers should verify the exact isolation rating and package suffix from the respective datasheets before substitution.
Are the ACPL-C87A-500E and ACPL-C78A-560E pin-compatible?
Both devices are offered in a compact 8-pin surface-mount package with a similar pinout for the isolated amplifier function. However, pin compatibility must be confirmed against the specific package drawing and land pattern in the Broadcom datasheets, because the 500E and 560E suffixes denote different packaging and ordering options that may affect handling and reel dimensions, not necessarily the package footprint.
What is the input voltage range for these isolated amplifiers?
The ACPL-C87A-500E and ACPL-C78A-560E are designed for a nominal input voltage range of ±200 mV, which is typical for shunt-based current sensing. The exact linear input range and full-scale input specifications should be verified from the official Broadcom datasheet for each part number.
What isolation certification do these components carry?
Both the ACPL-C87A-500E and ACPL-C78A-560E are certified to UL 1577 for 5 kVrms isolation for 1 minute and are also compliant with IEC/EN/DIN EN 60747-5-5 for reinforced insulation. Certification details and file numbers must be confirmed from the manufacturer's official qualification documentation.
Can the ACPL-C87A-500E be used as a drop-in replacement for the ACPL-C78A-560E?
Direct substitution is not recommended without validating all electrical, isolation, and packaging differences. While both are isolated amplifiers with similar functionality, the 500E and 560E suffixes indicate different ordering and packaging options. The designer must compare the datasheet parameters, isolation ratings, and PCB land patterns for the exact part numbers before replacing one with the other.
What are the typical applications for the ACPL-C87A-500E and ACPL-C78A-560E?
Typical applications include motor phase current sensing, inverter current feedback, DC-link voltage monitoring, and switched-mode power supply current sensing. These isolated amplifiers are used where galvanic isolation is required between high-voltage power stages and low-voltage control electronics.
What is the operating temperature range for these isolated amplifiers?
The ACPL-C87A-500E and ACPL-C78A-560E are specified for an operating temperature range of –40 °C to +105 °C. This range should be confirmed from the official Broadcom datasheet for each specific part number, as it is a critical parameter for industrial and automotive designs.