Part A
ADE7753ARSZRL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3828 PCS
- Package
- SSOP-20
- Series
- PMIC - Medição de Energia
Replacement verdict
Compatible functional replacement candidate
The ADE7755ARSZ and ADE7753ARSZRL are both single-phase energy metering ICs from Analog Devices in a 20-lead SSOP package, sharing a common footprint and core metering function. However, the ADE7753ARSZRL integrates additional features such as an on-chip digital integrator, a temperature sensor, and a serial peripheral interface with more advanced register access, while the ADE7755ARSZ offers a simpler pulse-output architecture. Designers should validate firmware compatibility, communication interface requirements, and calibration routines before substituting one for the other in a given metering design.
Package Type
High match
Primary Function
High match
Communication Interface
Validation required
On-Chip Feature Set
Validation required
Parts at a glance
Part B
ADE7755ARSZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4866 PCS
- Package
- SSOP-24
- Series
- PMIC - Medição de Energia
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADE7755ARSZ | ADE7753ARSZRL | Why it matters |
|---|---|---|---|
| Measurement Architecture | Fixed-function energy metering IC (analog-to-digital conversion with on-chip DSP for active power only) | Energy metering IC with on-chip DSP and digital interface (active, reactive, and apparent power plus RMS calculations) | Defines the core capability: the ADE7755 is a dedicated active-energy-only device, while the ADE7753 provides multi-parameter measurement, so they are not functionally interchangeable for reactive/apparent power applications. |
| Communication Interface | Pulse/frequency outputs (F1, F2, CF) only; no serial bus | SPI-compatible serial interface plus pulse outputs | A serial interface allows a host MCU to read registers and calibration data; the ADE7755 lacks this, so firmware and system architecture differ significantly. |
| On-Chip Registers / Readback | No readable registers; configuration via external component values | Multiple readable/writable registers (energy, RMS, calibration, status) | Register access enables digital calibration and diagnostics; the ADE7755 relies on hardware trimming, affecting manufacturability and flexibility. |
| Package | 20-lead SSOP | 20-lead SSOP | Package footprint affects PCB layout and assembly; identical package type eases board-level substitution but does not guarantee pin compatibility. |
| Supply Voltage | 5 V nominal (single supply) | 5 V nominal (single supply) | Supply compatibility is essential for direct replacement; both operate from a 5 V rail, simplifying power design. |
| Primary Function | Active (real) energy measurement only | Active, reactive, and apparent energy plus voltage/current RMS | Determines whether the device meets the metering standard requirements (e.g., reactive energy billing); the ADE7753 supports richer metering, the ADE7755 does not. |
| Calibration Method | Hardware/component-based calibration (external resistors, no digital registers) | Digital calibration via on-chip registers over SPI | Digital calibration is faster and more precise in production; hardware calibration requires manual trimming and limits field adjustability. |
| On-Chip Temperature Sensor | Not available | Integrated temperature sensor | A temperature sensor supports compensation and diagnostics; its absence in the ADE7755 limits environmental monitoring capability. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADE7753ARSZRL | ADE7755ARSZ |
|---|---|---|
| Part Status | Active | Active |
| Input Impedance | 390kOhm | 390kOhm |
| Measurement Error | 0.1% | 0.1% |
| Voltage - I / O High | 2.4V | 2.4V |
| Voltage - I / O Low | 0.8V | 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 ADE7755ARSZ and the ADE7753ARSZRL?
The ADE7755ARSZ is a single-phase energy metering IC that provides active power and energy measurement via a pulse/frequency output, while the ADE7753ARSZRL is a single-phase energy metering IC with an on-chip digital integrator, waveform sampling, and a serial (SPI-compatible) interface for reading active power, reactive power, RMS values, and energy registers. The ADE7753ARSZRL offers richer register-level data access, whereas the ADE7755ARSZ is a simpler pulse-output device.
Do the ADE7755ARSZ and ADE7753ARSZRL use the same package and pinout?
Both devices are offered in a 20-lead SSOP package, but their pin functions and internal signal paths differ, so they are not pin-for-pin interchangeable. The ADE7753ARSZRL includes additional digital interface pins (such as SPI-related signals) that the ADE7755ARSZ does not provide. PCB layout and pin assignments must be verified against each device's respective datasheet before substitution.
What type of output interface does each device provide?
The ADE7755ARSZ provides a low-frequency pulse output (F1/F2) proportional to active power, suitable for driving a mechanical counter or microcontroller pulse input. The ADE7753ARSZRL provides a serial peripheral interface (SPI-compatible) for reading its on-chip registers, along with a pulse output. The ADE7753ARSZRL therefore supports more detailed measurement data retrieval than the ADE7755ARSZ.
Can the ADE7753ARSZRL measure reactive power and RMS values while the ADE7755ARSZ cannot?
Yes. The ADE7753ARSZRL includes on-chip computation of reactive power, active power, and voltage/current RMS values accessible through its serial registers. The ADE7755ARSZ is designed primarily for active power/energy measurement with pulse output and does not provide the same register-level reactive power and RMS measurement capability. Designers requiring reactive power or RMS data should select the ADE7753ARSZRL.
Are both devices suitable for single-phase energy meter designs?
Yes. Both the ADE7755ARSZ and ADE7753ARSZRL are single-phase energy metering ICs intended for residential and industrial single-phase watt-hour meter applications. The choice between them depends on whether the design requires simple pulse-output energy accumulation (ADE7755ARSZ) or register-based access to multiple measurement parameters via a serial interface (ADE7753ARSZRL).
What is the role of the on-chip digital integrator in the ADE7753ARSZRL compared with the ADE7755ARSZ?
The ADE7753ARSZRL includes a digital integrator that allows it to interface with a di/dt current sensor (such as a Rogowski coil) by integrating the differentiated current signal. The ADE7755ARSZ does not provide this on-chip digital integrator and is intended for use with shunt or current-transformer sensing. This difference affects sensor selection and the external signal conditioning required in the meter design.
Can the ADE7755ARSZ be replaced by the ADE7753ARSZRL in an existing design without firmware changes?
No. Because the ADE7753ARSZRL uses a serial register interface and provides additional measurement functions, while the ADE7755ARSZ relies on pulse outputs, a direct replacement would require firmware and hardware changes. The designer must re-validate the signal chain, communication interface, calibration, and PCB layout against the ADE7753ARSZRL datasheet before considering substitution.