Part A
ACPL-796J-560E
Broadcom Limited
- Lifecycle
- Active
- Stock
- 2522 Stückzahl
- Package
- SOIC-16
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The ACPL-796J-560E and ACPL-798J-500E are both isolated sigma-delta modulators from Broadcom's optically isolated modulator family, sharing the same core isolation technology, 5 V supply architecture, and 16-pin SOIC wide-body package. While they differ in specified isolation voltage ratings and gain/input configuration, the ACPL-798J-500E can serve as a functional replacement candidate for the ACPL-796J-560E in applications where the lower isolation rating and different input range are acceptable. Designers should validate creepage/clearance requirements and input signal conditioning before substituting.
Package Type
High match
Supply Voltage
High match
Isolation Voltage
Validation required
Input Configuration
Validation required
Parts at a glance
Part B
ACPL-798J-500E
Broadcom Limited
- Lifecycle
- Active
- Stock
- 8138 Stückzahl
- 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-796J-560E | ACPL-798J-500E | Why it matters |
|---|---|---|---|
| Manufacturer | Broadcom | Broadcom | Same manufacturer ensures consistent quality, documentation, and support ecosystem. |
| Product Category | Isolation Amplifier / Optocoupler | Isolation Amplifier / Optocoupler | Both belong to the same functional category, indicating they serve similar signal-isolation roles. |
| Isolation Voltage (Vrms) | 5000 | 5000 | Higher isolation voltage provides greater safety margin in high-voltage applications. |
| Input Current (mA) | 10 | 10 | Input current determines the drive requirements and power budget of the isolation circuit. |
| Output Type | Analog | Analog | Output type must match the downstream signal chain for direct substitutability. |
| Bandwidth (MHz) | 1.5 | 1.5 | Bandwidth affects the maximum signal frequency that can be accurately transmitted. |
| Supply Voltage (V) | 4.5 to 5.5 | 4.5 to 5.5 | Supply voltage range must be compatible with the system power rails. |
| Operating Temperature (°C) | -40 to 105 | -40 to 105 | Temperature range determines suitability for industrial and automotive environments. |
| Package / Mounting | Surface Mount | Surface Mount | Package and mounting style must match the PCB footprint for drop-in replacement. |
| Pin Count | 16 | 16 | Pin count and pinout compatibility are essential for direct board-level substitution. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ACPL-796J-560E | ACPL-798J-500E |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | Isolation | Isolation |
| Number of Circuits | 1 | 1 |
| Current - Input Bias | 500 nA | 500 nA |
| Voltage - Input Offset | 3 mV | 600 µV |
| Supply Current | 14mA | 15.5mA |
| Current - Output / Channel | - | 3.5 mA |
| Voltage - Supply Span (Min) | - | 4.5 V |
| Voltage - Supply Span (Max) | - | 5.5 V |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | - | ACPL-798 |
| Voltage - Supply Span(Min) | 4.5 V | - |
| Voltage - Supply Span(Max) | 5.5 V | - |
Frequently asked questions
What are the ACPL-796J-560E and ACPL-798J-500E?
The ACPL-796J-560E and ACPL-798J-500E are Broadcom optically isolated sigma-delta (Σ-Δ) modulators designed for high-resolution current and voltage sensing in motor drive, power inverter, and industrial applications. Both devices convert an analog input signal into a high-speed, single-bit data stream that is digitally isolated from the input.
What is the difference between the ACPL-796J-560E and ACPL-798J-500E?
The primary difference is the specified isolation voltage and package option. The ACPL-796J-560E is rated for 5 kVrms reinforced insulation per UL 1577, while the ACPL-798J-500E is rated for 3.75 kVrms. The suffix codes also indicate different tape-and-reel or packaging options. Both share the same functional architecture as isolated Σ-Δ modulators.
Are the ACPL-796J-560E and ACPL-798J-500E pin-compatible?
Yes. Both devices are offered in the same 16-pin SOIC wide-body package with identical pin functions, allowing a common PCB footprint. However, designers must verify that the lower isolation rating of the ACPL-798J-500E meets the safety requirements of the target application before substituting it for the ACPL-796J-560E.
What is the input voltage range of these isolated modulators?
Both the ACPL-796J-560E and ACPL-798J-500E feature a nominal input voltage range of ±200 mV, which is suitable for shunt-based current sensing. The input is differential and is designed to interface directly with a low-value shunt resistor in motor phase or DC bus current measurement circuits.
What is the clock frequency and data output format?
Both devices operate with an external clock input in the range of 5 MHz to 20 MHz. The output is a single-bit sigma-delta data stream at the clock rate, which must be processed by a digital filter (such as a sinc3 filter) in an FPGA, DSP, or microcontroller to reconstruct the analog input value.
What isolation certification do the ACPL-796J-560E and ACPL-798J-500E carry?
The ACPL-796J-560E is certified to UL 1577 with 5 kVrms for 1 minute and IEC/EN/DIN EN 60747-5-5 with reinforced insulation. The ACPL-798J-500E is certified to UL 1577 with 3.75 kVrms for 1 minute and corresponding IEC 60747-5-5 basic insulation ratings. Designers should confirm the specific certification file numbers on the manufacturer datasheet for the exact ordering part number.
What are the typical applications for these isolated sigma-delta modulators?
Typical applications include motor phase current sensing in industrial motor drives, servo drives, photovoltaic inverter current sensing, uninterruptible power supply (UPS) current monitoring, and isolated voltage sensing in power conversion systems. Both devices are optimized for shunt-based current measurement with high common-mode transient immunity.
What is the operating temperature range for the ACPL-796J-560E and ACPL-798J-500E?
Both devices are specified for an industrial operating temperature range of –40 °C to +105 °C ambient. This range supports use in demanding industrial and automotive-adjacent environments where wide temperature operation is required.
Can the ACPL-798J-500E be used as a drop-in replacement for the ACPL-796J-560E?
Functionally and pin-wise, yes, but not unconditionally. The ACPL-798J-500E has a lower isolation voltage rating (3.75 kVrms vs. 5 kVrms). A drop-in replacement is only acceptable if the application's working voltage and safety isolation requirements are satisfied by the lower-rated part. Always verify against the system's isolation coordination and applicable safety standards.