Part A
ACPL-C790-500E
Broadcom Ltd
- Lifecycle
- Active
- Stock
- 5096 PCS
- Package
- SSO-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The ACPL-C790-500E and ACPL-C78A-060E are both isolated sigma-delta modulator amplifiers from Broadcom in the same SO-8 stretched package, sharing identical isolation ratings, supply voltage ranges, and operating temperature ranges. The ACPL-C790-500E offers a higher nominal input voltage range of ±200 mV, while the ACPL-C78A-060E is specified at ±320 mV, meaning gain scaling and full-scale input differ between the two. Both devices are functionally interchangeable for isolated current-sensing applications provided the system gain and shunt resistor values are recalculated for the respective input range. Design validation is recommended to confirm signal-chain accuracy and calibration.
Input Voltage Range
Validation required
Package Type
High match
Isolation Voltage Rating
High match
Operating Temperature Range
High match
Parts at a glance
Part B
ACPL-C78A-060E
Broadcom Ltd
- Lifecycle
- Active
- Stock
- 4839 PCS
- Package
- SOIC-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
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-C790-500E | ACPL-C78A-060E | Why it matters |
|---|---|---|---|
| Manufacturer | Broadcom | Broadcom | Same manufacturer ensures consistent quality and support. |
| Amplifier Type | Isolation Amplifier | Isolation Amplifier | Both are isolation amplifiers, indicating similar core function. |
| Input Offset Voltage (Max) | 0.6 mV | 3 mV | Lower offset voltage improves measurement accuracy in precision applications. |
| Gain Error (Max) | ±0.5% | ±1% | Lower gain error provides better signal fidelity and system accuracy. |
| Nonlinearity (Max) | 0.05% | 0.1% | Better linearity ensures more accurate analog signal reproduction. |
| Isolation Voltage (UL) | 5000 Vrms | 5000 Vrms | High isolation voltage protects against electrical hazards in high-voltage systems. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Wide temperature range supports industrial and automotive environments. |
| Supply Voltage (Typical) | 5 V | 5 V | Common supply voltage simplifies power supply design and compatibility. |
| Package / Mounting | Surface Mount (SO-8) | Surface Mount (SO-8) | Identical package allows direct drop-in replacement on existing PCBs. |
| Bandwidth (Typical) | 200 kHz | 100 kHz | Higher bandwidth enables faster signal response in control loops. |
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-C790-500E | ACPL-C78A-060E |
|---|---|---|
| Supplier | - | Broadcom Limited |
| Part Status | Active | Active |
| Amplifier Type | Isolation | Isolation |
| Number of Circuits | 1 | 1 |
| Output Type | Differential | Differential |
| -3 dB Bandwidth | 200 kHz | 100 kHz |
| Voltage - Input Offset | 600 µV | 300 µV |
| Supply Current | 13mA | 11mA |
| Current - Output / Channel | 11 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 ~ 105°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Current - Input Bias | 100 nA | - |
Frequently asked questions
What are the primary functional differences between the ACPL-C790-500E and the ACPL-C78A-060E?
The ACPL-C790-500E is a precision optically isolated sigma-delta modulator designed for current sensing and motor control applications, while the ACPL-C78A-060E is an optically isolated error amplifier intended for linear feedback and power supply regulation. They serve different signal-chain roles and are not functionally interchangeable.
Do the ACPL-C790-500E and ACPL-C78A-060E share the same package and pinout?
Both devices are offered in a compact surface-mount package, but their pin functions and internal signal paths differ because one is a modulator and the other is an error amplifier. Designers must verify the specific package drawing and pin assignment in the respective manufacturer datasheets before considering any layout reuse.
Can the ACPL-C790-500E be used as a direct drop-in replacement for the ACPL-C78A-060E?
No. The ACPL-C790-500E outputs a digital sigma-delta bitstream, whereas the ACPL-C78A-060E provides an analog error amplifier output. Their input and output signal domains, transfer functions, and external component requirements are fundamentally different, so direct substitution is not supported.
What are the typical isolation voltage ratings for these two components?
Both the ACPL-C790-500E and ACPL-C78A-060E are optically isolated devices from Broadcom (Avago) designed to provide reinforced insulation for industrial and power applications. For the exact isolation voltage, working voltage, and transient immunity ratings, refer to the official Broadcom datasheets for each part number, as these parameters must be verified against the specific revision.
Which device is better suited for motor phase current sensing?
The ACPL-C790-500E is the appropriate choice for motor phase current sensing because it is a sigma-delta modulator optimized for isolated current measurement with shunt resistors. The ACPL-C78A-060E is an error amplifier and is not intended for direct current-sensing modulator applications.
Are the operating temperature ranges of the ACPL-C790-500E and ACPL-C78A-060E the same?
Both parts are specified for industrial operating temperature ranges, but the exact minimum and maximum ambient or junction temperatures may differ between the modulator and error amplifier families. Always confirm the temperature grade from the official Broadcom datasheet for the specific ordering code, such as the -500E or -060E suffix.
What does the -500E and -060E suffix indicate on these Broadcom isolation components?
The suffixes denote specific ordering options such as tape-and-reel packaging, lead-free/RoHS compliance, and possibly different isolation or performance grades. Because suffix definitions can vary by product family, verify the exact meaning in the Broadcom ordering guide or datasheet for the ACPL-C790-500E and ACPL-C78A-060E before finalizing a bill of materials.