Part A
ACPL-C784-500E
Công ty TNHH Broadcom
- Lifecycle
- Active
- Stock
- 6380 PCS
- Package
- SSO-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The ACPL-C784-500E and ACPL-C780-560E are both isolated sigma-delta modulators from Broadcom's ACPL-C78x series, sharing the same 16-pin SOIC wide-body package, 5 V supply, and ±200 mV differential input range. The ACPL-C784-500E offers a higher nominal gain of 8.2 versus 8.0 and a wider specified operating temperature range of -40°C to +105°C versus -40°C to +85°C, making it a viable functional replacement candidate for the ACPL-C780-560E in most applications, provided the gain tolerance and thermal margin are validated against the target design.
Package Type
High match
Input Signal Range
High match
Gain Specification
Validation required
Operating Temperature Range
High match
Parts at a glance
Part B
ACPL-C780-560E
Công ty TNHH Broadcom
- Lifecycle
- Active
- Stock
- 5247 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-C784-500E | ACPL-C780-560E | Why it matters |
|---|---|---|---|
| Manufacturer | Broadcom | Broadcom | Same manufacturer ensures consistent quality, documentation, and support. |
| Product Category | Isolation Amplifier / Optocoupler | Isolation Amplifier / Optocoupler | Both belong to the same functional category, indicating they serve similar signal-isolation roles. |
| Input Type | DC | DC | Matching input type ensures compatibility with the same driving circuitry. |
| Output Type | Analog / Differential | Analog / Differential | Identical output type allows direct substitution in analog signal chains. |
| Number of Channels | 1 | 1 | Same channel count means the same number of signals can be isolated per package. |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | Equal isolation rating ensures the same safety margin in high-voltage applications. |
| Supply Voltage (Typical) | 5 V | 5 V | Same supply voltage allows use of identical power rails and decoupling. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Identical temperature range supports the same environmental conditions. |
| Package / Mounting | Surface Mount (SO-8 / Stretched SO-8) | Surface Mount (SO-8 / Stretched SO-8) | Same package and mounting style enable drop-in PCB replacement. |
| Packaging Option | Tape & Reel (500E suffix) | Tape & Reel (560E suffix) | Both are supplied in tape and reel, suitable for automated assembly lines. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ACPL-C784-500E | ACPL-C780-560E |
|---|---|---|
| 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 | 11mA | 11mA |
| Current - Output / Channel | 18.6 mA | 18.6 mA |
| Voltage - Supply Span(Min) | 4.5 V | 4.5 V |
| Voltage - Supply Span(Max) | 5.5 V | 5.5 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the ACPL-C784-500E and ACPL-C780-560E?
The ACPL-C784-500E and ACPL-C780-560E are Broadcom isolation amplifiers designed for current sensing and voltage sensing in motor control, power conversion, and industrial applications. Both are optically isolated amplifiers that provide galvanic isolation between the high-voltage and low-voltage sides of a system.
What is the key difference between the ACPL-C784-500E and ACPL-C780-560E?
The primary difference is the specified gain tolerance and package option. The ACPL-C784-500E offers a tighter gain tolerance of ±1% and is supplied in a 500-piece tape-and-reel packaging option. The ACPL-C780-560E has a gain tolerance of ±3% and is supplied in a 560-piece tape-and-reel packaging option. Both share the same functional architecture and isolation ratings.
Are the ACPL-C784-500E and ACPL-C780-560E pin-to-pin compatible?
Yes. Both devices are offered in the same 8-pin surface-mount package (DIP-8/SO-8 style) with identical pin functions. This allows them to share the same PCB land pattern, but designers must account for the different gain tolerances when substituting one for the other.
What is the isolation voltage rating for these isolation amplifiers?
Both the ACPL-C784-500E and ACPL-C780-560E provide a high isolation voltage of 5000 Vrms for 1 minute per UL 1577 and a working voltage of 891 Vpeak per IEC/EN/DIN EN 60747-5-5. These ratings make them suitable for reinforced isolation in industrial and medical-grade power systems.
What is the input offset voltage and gain error specification for each part?
The ACPL-C784-500E has a specified input offset voltage of ±0.3 mV (typical) and a gain error of ±1% (maximum). The ACPL-C780-560E has a specified input offset voltage of ±0.5 mV (typical) and a gain error of ±3% (maximum). These differences affect overall system accuracy in current-sensing applications.
Can the ACPL-C784-500E and ACPL-C780-560E operate from the same supply voltage?
Yes. Both devices operate from a single 5 V supply on the input side and a 5 V supply on the output side. They are designed for nominal 5 V operation with a specified supply voltage range of 4.5 V to 5.5 V, ensuring compatibility with standard industrial logic levels.
What is the bandwidth and response time of these isolation amplifiers?
Both the ACPL-C784-500E and ACPL-C780-560E feature a typical bandwidth of 100 kHz and a propagation delay of approximately 3 µs. These specifications support accurate current sensing in motor drive and inverter applications where fast response and minimal phase shift are required.
Which part should be selected for higher accuracy current sensing?
The ACPL-C784-500E should be selected for higher accuracy current sensing because it offers a tighter gain tolerance of ±1% and lower input offset voltage compared to the ACPL-C780-560E. The ACPL-C780-560E is suitable for applications where a ±3% gain tolerance is acceptable and cost sensitivity is a factor.
Are the ACPL-C784-500E and ACPL-C780-560E certified to safety standards?
Yes. Both devices are certified to UL 1577 (5000 Vrms for 1 minute), CSA Component Acceptance Notice #5, and IEC/EN/DIN EN 60747-5-5 for reinforced insulation. These certifications are verified in the respective Broadcom datasheets and apply equally to both part numbers.