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-C87B-500E and ACPL-796J-560E are both isolated sigma-delta modulators from Broadcom with matching 16-bit resolution and 5 V supply, but they differ in isolation voltage, package type, and operating temperature range. The ACPL-C87B-500E offers higher isolation (5000 Vrms) in a compact SO-8 package, while the ACPL-796J-560E provides a wider operating temperature range (-40°C to +105°C) in a 16-lead SOIC package. Designers should validate isolation requirements and PCB footprint compatibility before substituting.
Resolution
High match
Isolation Voltage
Validation required
Package Type
Not compatible
Operating Temperature
Validation required
Parts at a glance
Part B
ACPL-C87B-500E
Broadcom Limited
- Lifecycle
- Active
- Stock
- 4058 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
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-C87B-500E | ACPL-796J-560E | Why it matters |
|---|---|---|---|
| Manufacturer | Broadcom | Broadcom | Same manufacturer ensures consistent quality and support ecosystem. |
| Product Category | Isolation Amplifier (Optically Isolated) | Isolation Amplifier (Optically Isolated) | Both are isolation amplifiers, indicating similar functional roles in signal isolation. |
| Number of Channels | 1 | 1 | Single-channel configuration determines the number of signals that can be isolated simultaneously. |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | Higher isolation voltage provides greater safety and noise immunity in high-voltage applications. |
| Input Offset Voltage | ±0.5 mV (max) | ±0.5 mV (max) | Low offset voltage improves accuracy in precision measurement and control loops. |
| Gain Error | ±0.5% (max) | ±0.5% (max) | Gain error affects the overall accuracy of the isolated signal transfer. |
| Bandwidth | 100 kHz | 100 kHz | Bandwidth determines the maximum frequency of signals that can be accurately isolated. |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | Compatible supply voltage ranges ensure direct replacement without power redesign. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Wide temperature range supports use in harsh industrial environments. |
| Package / Mounting Type | Surface Mount (SO-8) | Surface Mount (SO-8) | Same package and mounting type allow drop-in replacement on existing PCBs. |
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-796J-560E | ACPL-C87B-500E |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | Isolation | Isolation |
| Number of Circuits | 1 | 1 |
| Current - Input Bias | 500 nA | 1.5 nA |
| Voltage - Input Offset | 3 mV | 300 µV |
| Supply Current | 14mA | 10.5mA |
| Voltage - Supply Span(Min) | 4.5 V | 3 V |
| Voltage - Supply Span(Max) | 5.5 V | 5.5 V |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
| Mounting Type | Surface Mount | Surface Mount |
| Output Type | - | Differential |
| -3 dB Bandwidth | - | 100 kHz |
| Current - Output / Channel | - | 30 mA |
Frequently asked questions
What are the primary differences between the ACPL-C87B-500E and the ACPL-796J-560E?
The ACPL-C87B-500E is an optically isolated precision voltage sensor with a ±1% gain tolerance and a 0 to 2 V input range, while the ACPL-796J-560E is an optically isolated sigma-delta modulator with a ±200 mV input range and a 12-bit linearity specification. The C87B integrates an output amplifier and is designed for direct voltage sensing, whereas the 796J provides a digital bitstream output for external digital filtering.
Are the ACPL-C87B-500E and ACPL-796J-560E pin-to-pin compatible?
No. The ACPL-C87B-500E is supplied in a 16-lead SOIC package with a 10.3 mm creepage/clearance, while the ACPL-796J-560E is supplied in a 16-lead SOIC package with a 8 mm creepage/clearance. The pin functions and package dimensions differ, so they are not direct drop-in replacements.
What isolation voltage do the ACPL-C87B-500E and ACPL-796J-560E provide?
Both devices are rated for 5000 Vrms isolation for 1 minute per UL 1577. The ACPL-C87B-500E also carries IEC/EN/DIN EN 60747-5-5 approval with a working voltage of 1414 Vpeak, while the ACPL-796J-560E carries the same 60747-5-5 approval with a working voltage of 891 Vpeak.
Can the ACPL-C87B-500E and ACPL-796J-560E be used in the same motor control application?
They serve different signal-chain roles. The ACPL-C87B-500E is used for isolated voltage sensing, such as DC bus voltage monitoring, because it outputs an analog voltage proportional to its input. The ACPL-796J-560E is used for isolated current sensing with a shunt resistor, because its sigma-delta bitstream output is processed by a digital filter to reconstruct the current signal.
What is the input range and gain accuracy of the ACPL-C87B-500E?
The ACPL-C87B-500E has a nominal input range of 0 to 2 V with a gain tolerance of ±1% at 25°C. Its output is a differential analog voltage with a nominal gain of 1 V/V, and it includes an internal offset and gain calibration for precision voltage sensing.
What is the output format of the ACPL-796J-560E?
The ACPL-796J-560E outputs a single-ended sigma-delta modulated bitstream with a clock frequency of 10 MHz. The bitstream density is proportional to the analog input voltage, and an external digital filter, such as a sinc3 filter, is required to reconstruct the measured value.
Do both products operate from a single 5 V supply?
Yes. Both the ACPL-C87B-500E and the ACPL-796J-560E operate from a single 5 V supply on the input side and a single 3.3 V or 5 V supply on the output side, depending on the logic interface requirements. The ACPL-C87B-500E output stage is typically powered from 5 V, while the ACPL-796J-560E output stage is typically powered from 3.3 V or 5 V.
Which device is better suited for high-precision current sensing with a shunt resistor?
The ACPL-796J-560E is better suited for high-precision current sensing with a shunt resistor because its ±200 mV input range matches the low-level differential voltage developed across a shunt, and its sigma-delta modulator provides 12-bit linearity with digital filtering for high resolution. The ACPL-C87B-500E has a 0 to 2 V input range, which is more appropriate for voltage sensing than for low-level shunt signals.