Part A
ADE7755ARS
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1570 ПКС
- Package
- SSOP-24
- Series
- PMIC - Измерение энергии
Replacement verdict
Not a drop-in replacement
The ADE7753ARSZRL and ADE7755ARS are not drop-in replacements for one another. Although both are single-phase energy metering ICs from Analog Devices in a 20-lead SSOP package, they differ fundamentally in their measurement architecture, communication interface, and feature set. The ADE7753ARSZRL integrates a sigma-delta ADC with an SPI-compatible serial interface and on-chip digital signal processing, while the ADE7755ARS uses a fixed-function pulse-output architecture with a low-frequency and high-frequency output. These differences in output type, interface, and functional capability mean the two devices are not interchangeable without a full hardware and firmware redesign.
Different output type
Different communication interface
Different measurement architecture
Different feature set
Parts at a glance
Part B
ADE7753ARSZRL
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3828 ПКС
- Package
- SSOP-20
- Series
- PMIC - Измерение энергии
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADE7753ARSZRL | ADE7755ARS | Why it matters |
|---|---|---|---|
| Measurement Architecture | Single-phase bidirectional energy metering IC with di/dt current sensor input and digital integrator | Single-phase bidirectional energy metering IC with fixed-function pulse output | The ADE7753 supports a di/dt current sensor with an on-chip digital integrator, while the ADE7755 is a simpler fixed-function device; this affects sensor compatibility and design flexibility. |
| Communication Interface | SPI-compatible serial interface | None (pulse/frequency output only) | The ADE7753 allows register access and calibration via SPI, whereas the ADE7755 provides only pulse outputs, limiting configurability and system integration options. |
| On-Chip Registers / Calibration | Multiple on-chip registers for gain, offset, and phase calibration | Limited calibration via external components only | Digital calibration registers in the ADE7753 enable precise software-based trimming, while the ADE7755 relies on external component selection, affecting accuracy tuning effort. |
| Output Type | Pulse output plus digital energy/register data via SPI | Low-frequency and high-frequency pulse outputs (F1, F2, CF) | The output format determines how energy data is read by the host system; the ADE7753 offers digital readout while the ADE7755 provides frequency-based pulse outputs. |
| Package | 20-lead SSOP | 20-lead SSOP | Both devices share the same 20-lead SSOP footprint, which is relevant for PCB layout and potential board-level substitution. |
| Supply Voltage | 5 V nominal (4.75 V to 5.25 V) | 5 V nominal (4.75 V to 5.25 V) | Matching supply requirements simplifies power supply design and allows the same rail to be reused if substituting parts. |
| Current Sensor Input | Supports di/dt sensor with digital integrator; also supports shunt/CT | Shunt or current transformer (CT) input | The ADE7753's di/dt input with digital integrator enables use with Rogowski coils, while the ADE7755 is limited to shunt or CT sensors, affecting sensor selection. |
| On-Chip Temperature Sensor | Yes | No | An on-chip temperature sensor in the ADE7753 supports temperature compensation and diagnostics, which the ADE7755 does not provide. |
| Energy Accumulation / Register Readout | Active energy, apparent energy, and waveform sampling registers | Active energy only via pulse output | The ADE7753 provides richer measurement data (apparent energy, waveform samples), enabling more advanced metering features than the ADE7755's pulse-only output. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADE7755ARS | ADE7753ARSZRL |
|---|---|---|
| Part Status | Obsolete | 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 primary functional differences between the ADE7753ARSZRL and the ADE7755ARS?
The ADE7753ARSZRL is a single-phase multifunction energy metering IC with a serial peripheral interface (SPI), on-chip digital integrator, and waveform sampling capability. The ADE7755ARS is a single-phase energy metering IC that provides a pulse-frequency output proportional to active power and is designed for simpler, lower-cost meter designs without an SPI interface or waveform sampling.
Do the ADE7753ARSZRL and ADE7755ARS use the same package and pinout?
No. The ADE7753ARSZRL is supplied in a 20-lead SSOP (RS-20) package, while the ADE7755ARS is supplied in a 24-lead SSOP (RS-24) package. The pin counts and pin functions differ, so the two devices are not pin-compatible and cannot be interchanged on the same PCB land pattern.
What is the difference in output interface between the ADE7753ARSZRL and the ADE7755ARS?
The ADE7753ARSZRL provides an SPI-compatible serial interface for reading energy registers, waveform samples, and configuration registers. The ADE7755ARS provides a low-frequency pulse output (F1, F2) whose frequency is proportional to active power, along with a higher-frequency calibration output (CF), and does not include an SPI port.
Can the ADE7753ARSZRL and ADE7755ARS operate from the same supply voltage?
Yes. Both devices operate from a single 5 V supply (VDD = 5 V nominal) per their respective manufacturer datasheets. However, the surrounding circuit, reference, and interface requirements differ, so the power supply decoupling and layout should follow each device's datasheet recommendations.
Which device supports on-chip waveform sampling and a digital integrator?
The ADE7753ARSZRL includes an on-chip digital integrator and provides access to instantaneous waveform samples through its SPI interface, which supports applications such as waveform capture and harmonic analysis. The ADE7755ARS does not provide waveform sampling or a digital integrator; it outputs pulse frequencies for energy accumulation.
Are the ADE7753ARSZRL and ADE7755ARS both intended for single-phase energy metering?
Yes. Both are single-phase energy metering ICs from Analog Devices intended for residential and industrial single-phase watt-hour meter designs. The ADE7753ARSZRL targets higher-feature meters requiring serial access and waveform data, while the ADE7755ARS targets cost-sensitive meters requiring pulse output only.
Can the ADE7755ARS be used as a drop-in replacement for the ADE7753ARSZRL?
No. Because the devices differ in package (24-lead vs 20-lead SSOP), pinout, output interface (pulse vs SPI), and feature set (no waveform sampling or digital integrator on the ADE7755ARS), a direct drop-in replacement is not possible. Any substitution requires a redesign validated against the respective manufacturer datasheets.