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-C784-060E are both isolated analog amplifiers from Broadcom in the same SO-8 package family, but they differ in isolation working voltage, input signal range, and output configuration. The ACPL-C87A-500E is a high-impedance unity-gain isolation amplifier with ±1 V input range and 5 kVrms isolation, while the ACPL-C784-060E is a current-sense isolation amplifier with ±200 mV input range and 3.75 kVrms isolation. Direct substitution requires validation of the input signal conditioning network and isolation rating for the target application.
Isolation Voltage Rating
Validation required
Input Signal Range
Not compatible
Output Configuration
Validation required
Package Type
High match
Parts at a glance
Part B
ACPL-C784-060E
Công ty TNHH Broadcom
- Lifecycle
- Active
- Stock
- 7126 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-C784-060E | Why it matters |
|---|---|---|---|
| Manufacturer | Broadcom | Broadcom | Same manufacturer ensures consistent quality and support. |
| Function | Isolation Amplifier | Isolation Amplifier | Both are isolation amplifiers, indicating similar core functionality. |
| Input Offset Voltage | ±0.5 mV (max) | ±3 mV (max) | Lower offset voltage provides better accuracy in signal conditioning. |
| Gain Error | ±0.5% (max) | ±1% (max) | Lower gain error improves measurement precision. |
| Isolation Voltage | 5000 Vrms (for 1 min) | 3750 Vrms (for 1 min) | Higher isolation voltage offers better safety and noise immunity in high-voltage applications. |
| Bandwidth | 100 kHz | 100 kHz | Sufficient bandwidth for many industrial control and motor drive applications. |
| Supply Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V | Standard 5V supply compatibility simplifies system design. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +85°C | Wider temperature range allows use in more demanding environments. |
| Package / Mounting | Surface Mount (SOP-8) | Through-Hole (DIP-8) | Different mounting styles affect PCB layout and assembly process. |
| Output Type | Differential | Differential | Differential output provides better noise rejection and common-mode performance. |
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-C87A-500E | ACPL-C784-060E |
|---|---|---|
| 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 primary functional differences between the ACPL-C87A-500E and the ACPL-C784-060E?
The ACPL-C87A-500E is an optically isolated precision voltage sensor designed for isolated voltage sensing applications, while the ACPL-C784-060E is an optically isolated analog isolation amplifier intended for current sensing and general analog signal isolation. The ACPL-C87A-500E is optimized for voltage measurement with a nominal input range of ±2 V, whereas the ACPL-C784-060E is designed for small-signal analog isolation with a nominal input range of ±200 mV.
Are the ACPL-C87A-500E and ACPL-C784-060E pin-to-pin compatible?
No. The ACPL-C87A-500E is supplied in a 16-lead SOIC package (500 mil wide), while the ACPL-C784-060E is supplied in an 8-lead DIP package (060E suffix indicates a 300 mil DIP configuration). Their package footprints, pin counts, and pin functions differ, so they are not drop-in replacements for each other.
What are the input voltage ranges for the ACPL-C87A-500E and ACPL-C784-060E?
The ACPL-C87A-500E has a nominal input voltage range of ±2 V with a full-scale input range of approximately ±2.5 V. The ACPL-C784-060E has a nominal input voltage range of ±200 mV. These differing input ranges mean the two devices are intended for different signal levels and cannot be used interchangeably without external signal conditioning.
Do both the ACPL-C87A-500E and ACPL-C784-060E provide galvanic isolation?
Yes. Both devices are optically isolated. The ACPL-C87A-500E provides reinforced insulation with a working voltage and transient immunity suitable for high-voltage sensing applications. The ACPL-C784-060E also provides optical isolation between input and output. However, the specific isolation voltage ratings and safety certifications differ between the two products and should be verified from the respective manufacturer datasheets for the target application.
Can the ACPL-C87A-500E be used for current sensing and the ACPL-C784-060E for voltage sensing?
The ACPL-C87A-500E is specifically designed and characterized for isolated voltage sensing, though it can be used for current sensing when combined with an appropriate shunt resistor and signal conditioning. The ACPL-C784-060E is primarily intended for current sensing and general analog isolation. Using either device outside its intended application requires careful validation of accuracy, linearity, and isolation performance against the manufacturer datasheet.
What are the output configurations of the ACPL-C87A-500E and ACPL-C784-060E?
The ACPL-C87A-500E provides a differential analog output voltage. The ACPL-C784-060E provides a differential analog output as well, with an output voltage swing that is proportional to the input signal. The specific output voltage ranges, offset, and gain tolerances differ between the two devices and must be confirmed from the respective datasheets.
Which device is better suited for motor drive current sensing applications?
The ACPL-C784-060E is generally more suitable for motor drive current sensing because it is specifically designed as an isolation amplifier for small-signal current measurement with a ±200 mV input range, which interfaces well with shunt resistors. The ACPL-C87A-500E, with its ±2 V input range, is more appropriate for isolated voltage sensing in motor drive DC bus monitoring or other high-voltage measurement tasks.
Do the ACPL-C87A-500E and ACPL-C784-060E share the same operating temperature range?
Both devices are specified for industrial operating temperature ranges, but the exact temperature limits may differ. The ACPL-C87A-500E and ACPL-C784-060E are both typically rated for operation over the industrial temperature range of –40 °C to +105 °C or similar, depending on the specific product variant. Designers must verify the exact temperature specification from the manufacturer datasheet for each part number.