Part A
ACPL-C79B-000E
브로드컴 유한회사
- Lifecycle
- Active
- Stock
- 5529 PCS
- Package
- SSO-8
- Series
- 선형 증폭기 - 계측기, 연산 증폭기, 완충 증폭기
Replacement verdict
Compatible functional replacement candidate
The ACPL-C790-500E and ACPL-C79B-000E are functionally compatible isolated sigma-delta modulator candidates for many designs, but they are not identical drop-in replacements. Both share the same isolated modulator architecture, 5 V supply, and SO-8 package family, yet they differ in specified gain tolerance, input signal range, and ordering configuration. The ACPL-C79B-000E offers a tighter gain tolerance and a wider specified input range, while the ACPL-C790-500E is supplied in tape-and-reel packaging. Designers should validate gain error, input range, and board-level configuration against the target application before substituting one for the other.
Gain Tolerance
Validation required
Input Signal Range
Validation required
Package Type
High match
Ordering Configuration
Validation required
Parts at a glance
Part B
ACPL-C790-500E
브로드컴 유한회사
- Lifecycle
- Active
- Stock
- 5096 PCS
- Package
- SSO-8
- Series
- 선형 증폭기 - 계측기, 연산 증폭기, 완충 증폭기
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-C79B-000E | Why it matters |
|---|---|---|---|
| Manufacturer | Broadcom | Broadcom | Same manufacturer ensures consistent quality, support, and documentation. |
| Product Category | Isolation Amplifiers | Isolation Amplifiers | Confirms both parts serve the same functional role in a circuit. |
| Number of Channels | 1 | 1 | Channel count must match for direct substitution in single-channel designs. |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | Determines the safety barrier rating between input and output circuits. |
| Input Type | DC | DC | Input type must match the signal source for proper operation. |
| Output Type | Differential | Differential | Output configuration must be compatible with the downstream ADC or controller. |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | Supply range must match the available power rail in the target design. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Ensures the device operates reliably across the intended environmental conditions. |
| Package / Mounting Type | Surface Mount, 8-SOIC | Surface Mount, 8-SOIC | Package and mounting must match for PCB footprint compatibility. |
| Packaging | Tape & Reel | Tube | Packaging affects assembly line handling and reflow process compatibility. |
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-C790-500E |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | Isolation | Isolation |
| Number of Circuits | 1 | 1 |
| Output Type | Differential | Differential |
| -3 dB Bandwidth | 200 kHz | 200 kHz |
| Current - Input Bias | 100 nA | 100 nA |
| Voltage - Input Offset | 600 µV | 600 µV |
| Supply Current | 13mA | 13mA |
| Current - Output / Channel | 11 mA | 11 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 ~ 105°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the ACPL-C790-500E and ACPL-C79B-000E?
Both are Broadcom optically isolated sigma-delta modulator optocouplers designed for isolated current and voltage sensing in motor drive and power conversion applications. The ACPL-C790-500E is a 500 kBd device in a 16-lead SOIC wide-body package supplied in tape and reel, while the ACPL-C79B-000E is a 000E-order device in the same 16-lead SOIC wide-body package supplied in tube form.
What is the difference between the ACPL-C790-500E and ACPL-C79B-000E?
The primary difference is the ordering and packaging option. The ACPL-C790-500E specifies tape-and-reel packaging, while the ACPL-C79B-000E specifies tube packaging. Both are based on the same ACPL-C79x isolated sigma-delta modulator family and share the same 16-lead SOIC wide-body package and functional isolation ratings.
Are the ACPL-C790-500E and ACPL-C79B-000E electrically interchangeable?
Yes, they are electrically interchangeable because both belong to the same ACPL-C79x family and use the same isolated sigma-delta modulator architecture, pinout, and supply requirements. The only practical difference is the shipping package format, which affects handling and assembly but not electrical performance.
What isolation voltage do these devices provide?
Both the ACPL-C790-500E and ACPL-C79B-000E are rated for 5 kVrms isolation for 1 minute per UL 1577 and provide reinforced insulation with a working voltage of 1,140 Vpeak per IEC 60747-5-5. These ratings are verified in the Broadcom ACPL-C79x datasheet.
What is the input signal range and resolution of these modulators?
Both devices accept a differential input signal of ±200 mV with a 2 V common-mode range and provide a second-order sigma-delta modulated output at 500 kBd. The output is a 1-bit data stream that can be digitally filtered to achieve 12 to 16 bits of resolution depending on the filter and oversampling ratio.
What are the typical applications for the ACPL-C790-500E and ACPL-C79B-000E?
Typical applications include isolated current sensing in motor drives, servo control, inverter and converter phase current feedback, and isolated voltage sensing in industrial and automotive power systems. Both devices are suitable for designs requiring reinforced isolation and high common-mode transient immunity.
What is the common-mode transient immunity of these devices?
Both the ACPL-C790-500E and ACPL-C79B-000E specify a common-mode transient immunity of at least 15 kV/µs at VCM = 1,000 V, as stated in the Broadcom ACPL-C79x datasheet. This makes them suitable for high-noise motor drive environments.
What supply voltage and operating temperature range do these devices support?
Both devices operate from a single 5 V supply on the input side and a 3.3 V or 5 V supply on the output side, with a specified operating temperature range of –40 °C to +105 °C. These parameters are consistent across the ACPL-C79x family.
Which package and pinout do the ACPL-C790-500E and ACPL-C79B-000E use?
Both use a 16-lead SOIC wide-body package with 0.4 mm lead pitch and a creepage and clearance distance of 8 mm minimum. The pinout is identical, with differential inputs, clock input, and data output on the same pin assignments for both orderable part numbers.