Part A
ADE7758ARWZRL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5563 PCS
- Package
- SOIC-24
- Series
- PMIC - Energy Metering
Replacement verdict
Compatible functional replacement candidate
The ADE7758ARWZRL is a higher-integration superset of the ADE7754ARZ, adding a third current channel and neutral current monitoring while retaining the same SPI interface, pulse output architecture, and polyphase energy metering core. Both devices share the same functional family and communication protocol, but differ in channel count, package footprint, and register map, so firmware and layout revisions are required before substitution. The ADE7758ARWZRL is best suited where three-phase four-wire metering with neutral current detection is needed, while the ADE7754ARZ remains adequate for three-phase three-wire applications.
Channel Count
Validation required
Communication Interface
High match
Package Type
Validation required
Register Map Compatibility
Validation required
Parts at a glance
Part B
ADE7754ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4821 PCS
- Package
- SOIC-24
- Series
- PMIC - Energy Metering
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADE7754ARZ | ADE7758ARWZRL | Why it matters |
|---|---|---|---|
| Number of Voltage Channels | 1 (single voltage channel) | 3 (three voltage channels) | Determines whether the device can measure three-phase voltage simultaneously; the ADE7758 supports full three-phase voltage sensing while the ADE7754 does not. |
| Number of Current Channels | 3 (three current channels) | 3 (three current channels) | Both support three current inputs, enabling three-phase current measurement; this is a shared capability relevant to polyphase metering. |
| Package / Case | 28-Lead SOIC (wide body) | 24-Lead SOIC (wide body) | Different footprints and pin counts mean the two parts are not drop-in PCB replacements; layout redesign is required when substituting. |
| Supply Voltage (VDD) | 5 V nominal | 5 V nominal | Both operate from a 5 V supply, so power rail requirements are compatible for substitution. |
| Communication Interface | SPI (serial peripheral interface) | SPI (serial peripheral interface) | Both use SPI for register access, allowing similar microcontroller interfacing, though register maps differ. |
| On-Chip Energy Registers | Active, reactive, and apparent energy plus fundamental | Active, reactive, and apparent energy | The ADE7754 includes fundamental energy measurement features not present in the ADE7758, affecting metering feature set and accuracy options. |
| On-Chip Temperature Sensor | Yes | Yes | Both provide an internal temperature sensor for on-chip diagnostics and compensation. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Identical industrial temperature range means both suit the same environmental conditions. |
| Calibration / Pulse Output | CF pulse output for calibration | CF pulse output for calibration | Both offer a calibration frequency output, supporting similar factory calibration workflows. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADE7758ARWZRL | ADE7754ARZ |
|---|---|---|
| Part Status | Active | Active |
| Input Impedance | 380kOhm | 370kOhm |
| Measurement Error | 0.1% | 0.1% |
| Voltage - I / O High | 2.4V | 2.4V |
| Voltage - I / O Low | 0.8V | 0.8V |
| Supply Current | 8mA | 7mA |
| Voltage - Supply | 4.75 V ~ 5.25 V | 4.75 V ~ 5.25 V |
| Meter Type | 3 Phase | 3 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 ADE7754ARZ and ADE7758ARWZRL?
The ADE7754ARZ is a polyphase energy metering IC with pulse output and serial interface in a 24-lead SOIC package, while the ADE7758ARWZRL is a polyphase energy metering IC with an on-chip temperature sensor, additional measurement channels, and a 24-lead SOIC wide-body package. The ADE7758 offers more integrated functionality, including reactive power and apparent power measurement, whereas the ADE7754 focuses on active power and RMS measurements.
Are the ADE7754ARZ and ADE7758ARWZRL pin-compatible?
No, they are not pin-compatible. The ADE7754ARZ uses a 24-lead SOIC package, and the ADE7758ARWZRL uses a 24-lead SOIC wide-body package. Pin functions and PCB land patterns differ, so a direct drop-in replacement is not possible without layout changes.
Can the ADE7758ARWZRL replace the ADE7754ARZ in an existing design?
Not directly. Although both are polyphase energy metering ICs from Analog Devices, they differ in package footprint, register maps, and feature sets. The ADE7758ARWZRL includes additional measurement capabilities such as reactive and apparent power, and its register configuration differs from the ADE7754ARZ. A redesign and firmware update would be required.
What are the primary applications of the ADE7754ARZ and ADE7758ARWZRL?
Both devices are intended for polyphase energy metering applications, including industrial and commercial electricity meters. The ADE7754ARZ is suited for active power and RMS measurement in three-phase systems, while the ADE7758ARWZRL supports more comprehensive power quality monitoring with active, reactive, and apparent power measurements plus temperature sensing.
Do both devices support serial communication interfaces?
Yes, both the ADE7754ARZ and ADE7758ARWZRL include a serial peripheral interface (SPI) for communication with a host microcontroller. This allows configuration and reading of measurement registers in polyphase energy metering systems.
What package types are used for the ADE7754ARZ and ADE7758ARWZRL?
The ADE7754ARZ is supplied in a 24-lead SOIC package, while the ADE7758ARWZRL is supplied in a 24-lead SOIC wide-body package. The difference in package width affects PCB footprint and thermal characteristics.
Are both devices manufactured by Analog Devices?
Yes, both the ADE7754ARZ and ADE7758ARWZRL are manufactured by Analog Devices. They belong to the same family of polyphase energy metering ICs, though they differ in feature integration and package options.