Part A
ADE7763ARSZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3281 Stückzahl
- Package
- SSOP-20
- Series
- PMIC-Energiemessung
Replacement verdict
Compatible functional replacement candidate
The ADE7751ARSZ and ADE7763ARSZ are both single-phase energy metering ICs from Analog Devices in the same 20-lead SOIC package, sharing a comparable supply voltage range and serial interface, so the ADE7763ARSZ can serve as a functional replacement candidate for the ADE7751ARSZ. However, the ADE7763ARSZ offers a richer feature set including a temperature sensor, additional on-chip registers, and a different current-sense input configuration, so the design must be validated against the target application's metering requirements before substitution.
Package Type
High match
Supply Voltage Range
High match
Current-Sense Input Configuration
Validation required
On-Chip Feature Set
Validation required
Parts at a glance
Part B
ADE7751ARSZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7666 Stückzahl
- Package
- SSOP-24
- Series
- PMIC-Energiemessung
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADE7751ARSZ | ADE7763ARSZ | Why it matters |
|---|---|---|---|
| Measurement Function | Single-phase active energy (Wh) with pulse output | Single-phase active, reactive, and apparent energy with SPI/I²C interface | Defines the core metering capability; the ADE7763 supports reactive/apparent energy and digital readout, while the ADE7751 provides only active energy via pulse output. |
| Output Interface | Pulse/frequency output (CF, F1, F2) | SPI and I²C serial interfaces plus pulse output | Determines how the host MCU reads data; the ADE7751 requires frequency counting, whereas the ADE7763 offers direct register access over serial buses. |
| On-Chip Energy Registers | No digital energy registers (pulse output only) | Yes, 24-bit active/reactive/apparent energy registers | On-chip registers enable accurate digital energy accumulation and calibration, which the ADE7751 lacks, affecting system architecture and firmware complexity. |
| Reactive/Apparent Energy Support | Not supported | Supported (reactive and apparent energy registers) | Reactive and apparent energy measurement is required for many utility billing standards; the ADE7751 cannot provide these quantities. |
| On-Chip Temperature Sensor | No | Yes | An internal temperature sensor supports compensation and diagnostics; its absence in the ADE7751 limits self-monitoring capability. |
| Supply Voltage (VDD) | 5 V nominal | 5 V nominal | Both operate from a 5 V supply, so power-rail design is compatible between the two parts. |
| Package | 20-lead SSOP | 20-lead SSOP | Identical package and pin count simplify PCB layout substitution, though pin functions differ. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Matching industrial temperature ranges mean both suit the same environmental conditions. |
| Calibration / Digital Offset Correction | Limited (external calibration via pulse output) | On-chip digital calibration registers (gain, offset, phase) | Digital calibration registers in the ADE7763 improve accuracy and simplify production calibration versus the ADE7751's external approach. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADE7763ARSZ | ADE7751ARSZ |
|---|---|---|
| Part Status | Active | Active |
| Input Impedance | 390kOhm | 390kOhm |
| Measurement Error | 0.1% | 0.1% |
| Voltage - I / O High | 2.4V | 2.4V, 4V, 4.5V |
| Voltage - I / O Low | 0.8V | 0.5V, 0.8V |
| Supply Current | 3mA | 3mA |
| Voltage - Supply | 4.75 V ~ 5.25 V | 4.75 V ~ 5.25 V |
| Meter Type | Single Phase | Single Phase |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the ADE7751ARSZ and ADE7763ARSZ energy metering ICs?
The ADE7751ARSZ is a single-phase, bidirectional energy metering IC with a pulse output and on-chip fault detection, while the ADE7763ARSZ is a single-phase energy metering IC with an SPI-compatible serial interface that provides access to on-chip registers for active power, reactive power, RMS values, and other parameters. The ADE7763ARSZ offers richer digital interface and measurement capabilities, whereas the ADE7751ARSZ is oriented toward simpler pulse-output metering applications.
Do the ADE7751ARSZ and ADE7763ARSZ use the same package and pinout?
Both devices are offered in a 20-lead SOIC package (RSZ suffix), but their pin functions differ because the ADE7763ARSZ includes an SPI serial interface and additional digital pins, while the ADE7751ARSZ provides a pulse output (CF) and fault logic. The pinouts are not identical, so PCB layouts are not directly interchangeable.
Can the ADE7751ARSZ be used as a drop-in replacement for the ADE7763ARSZ?
No. Although both are single-phase energy metering ICs in a 20-lead SOIC package, the ADE7763ARSZ provides an SPI-compatible serial interface for register access, while the ADE7751ARSZ provides a frequency pulse output and fault detection. The differing pin functions and communication interfaces mean a direct drop-in substitution is not possible without design changes.
What communication or output interface does each device provide?
The ADE7751ARSZ provides a pulse/frequency output (CF) proportional to active power, along with fault output logic. The ADE7763ARSZ provides an SPI-compatible serial interface that allows a microcontroller to read active power, reactive power, apparent power, RMS voltage and current, and energy registers, in addition to a pulse output.
Are both devices suitable for single-phase active energy measurement?
Yes. Both the ADE7751ARSZ and ADE7763ARSZ are single-phase energy metering ICs intended for active energy measurement in single-phase applications. The ADE7763ARSZ additionally provides reactive power and RMS measurement capabilities through its serial interface.
What is the operating supply voltage range for these devices?
Both the ADE7751ARSZ and ADE7763ARSZ operate from a single 5 V supply (nominally 5 V ±5%). Designers should confirm the exact supply tolerance and current consumption from the respective manufacturer datasheets before finalizing the power supply design.
Which device is better suited for a design requiring microcontroller-based register access?
The ADE7763ARSZ is better suited because it includes an SPI-compatible serial interface that allows a microcontroller to read and configure on-chip registers for active power, reactive power, RMS values, and energy accumulation. The ADE7751ARSZ does not provide this serial register access and instead outputs energy information as a pulse frequency.