Part A
ACPL-C79B-000E
Broadcom Ltd
- Lifecycle
- Active
- Stock
- 5529 PCS
- Package
- SSO-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The ACPL-C79B-000E and ACPL-C78A-560E are both isolated sigma-delta modulator amplifiers from Broadcom's ACPL-C78x/C79x family, sharing the same SO-8 stretched package, 5 V supply architecture, and differential output topology. The ACPL-C79B-000E offers a higher specified gain tolerance and tighter offset performance, making it a viable functional upgrade in most isolated current-sensing applications, though the ACPL-C78A-560E's tape-and-reel packaging option and slightly different gain specification should be validated against the target design's accuracy budget before substitution.
Package Type
High match
Output Type
High match
Gain Tolerance
Validation required
Isolation Voltage Rating
Validation required
Parts at a glance
Part B
ACPL-C78A-560E
Broadcom Ltd
- Lifecycle
- Active
- Stock
- 7750 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-C79B-000E | ACPL-C78A-560E | Why it matters |
|---|---|---|---|
| Manufacturer Part Number | ACPL-C79B-000E | ACPL-C78A-560E | Identifies the exact orderable variant, including gain tolerance and package option. |
| Amplifier Type | Isolation Amplifier | Isolation Amplifier | Confirms both devices serve the same signal-isolation function in a circuit. |
| Gain Tolerance | ±0.5% | ±1% | Tighter gain tolerance improves measurement accuracy and reduces calibration effort. |
| Input Offset Voltage | 0.2 mV typical | 0.6 mV typical | Lower offset voltage reduces DC error in precision current and voltage sensing. |
| Gain Bandwidth Product | 100 MHz | 100 MHz | Determines the maximum signal bandwidth the amplifier can process accurately. |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | Specifies the safety barrier rating between input and output sides. |
| Supply Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V | Defines the compatible power supply rails for the device. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Ensures reliable operation across the intended industrial temperature environment. |
| Package / Mounting | 8-SOIC, Surface Mount | 8-SOIC, Surface Mount | Confirms physical footprint and assembly compatibility on the PCB. |
| Output Type | Differential | Differential | Determines the interface configuration required by the downstream ADC or controller. |
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-C79B-000E | 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 | 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 ACPL-C79B-000E and ACPL-C78A-560E?
The ACPL-C79B-000E and ACPL-C78A-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-C79B-000E and ACPL-C78A-560E?
The primary difference is the gain tolerance and package option. The ACPL-C79B-000E offers a tighter gain tolerance of ±1% and comes in a 16-pin SOIC wide-body package. The ACPL-C78A-560E has a gain tolerance of ±5% and is supplied in a 16-pin SOIC wide-body package with tape and reel packaging (the 560E suffix indicates tape and reel).
What is the isolation voltage rating for these isolation amplifiers?
Both the ACPL-C79B-000E and ACPL-C78A-560E are rated for 5000 Vrms isolation for 1 minute per UL 1577 and 891 Vpeak working voltage per IEC/EN/DIN EN 60747-5-5. These ratings make them suitable for high-voltage industrial applications requiring reinforced isolation.
What is the input offset voltage and gain error specification for each part?
The ACPL-C79B-000E has a typical input offset voltage of ±0.3 mV and a maximum gain error of ±1%. The ACPL-C78A-560E has a typical input offset voltage of ±0.3 mV and a maximum gain error of ±5%. The tighter gain specification of the C79B makes it preferable for applications requiring higher measurement accuracy.
Are the ACPL-C79B-000E and ACPL-C78A-560E pin-to-pin compatible?
Yes, both devices are offered in the same 16-pin SOIC wide-body package with identical pinout. However, direct substitution requires verifying that the gain error and other parametric differences are acceptable for the target application. The C79B provides tighter gain tolerance, while the C78A offers a wider gain tolerance at a potentially lower cost.
What is the operating temperature range for these isolation amplifiers?
Both the ACPL-C79B-000E and ACPL-C78A-560E are specified for an operating temperature range of –40°C to +105°C. This industrial temperature range supports use in motor drives, inverters, and other demanding environments.
What bandwidth and response time do these isolation amplifiers provide?
Both devices feature a typical bandwidth of 200 kHz and a typical propagation delay of 1.6 µs. These characteristics support accurate current sensing in motor control loops and power conversion systems where fast response is required.
What certifications and safety approvals do the ACPL-C79B-000E and ACPL-C78A-560E carry?
Both parts 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 with 891 Vpeak working voltage. These approvals are standard for Broadcom isolation products and are verifiable through the manufacturer datasheet.