Part A
ADE7751ARSZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 7666 個数
- Package
- SSOP-24
- Series
- PMIC - 電力量計
Replacement verdict
Compatible functional replacement candidate
The ADE7751ARSZ and ADE7751ARSZRL are functionally identical single-phase energy metering ICs from the same manufacturer, differing only in packaging format (tube vs. tape-and-reel). Both share the same die, pinout, electrical specifications, and application circuit, making the reel variant a direct functional substitute for the tube variant in production environments.
Package Type
High match
Pin Configuration
High match
Electrical Specifications
High match
Operating Temperature Range
High match
Parts at a glance
Part B
ADE7751ARSZRL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 4036 個数
- Package
- SSOP-24
- Series
- PMIC - 電力量計
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 | ADE7751ARSZRL | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures identical design, process, and quality standards. |
| Function | Single-phase energy metering IC with on-chip oscillator and anti-tamper detection | Single-phase energy metering IC with on-chip oscillator and anti-tamper detection | Identical core function confirms the parts are functionally interchangeable in metering designs. |
| Package / Case | 20-Lead SSOP | 20-Lead SSOP | Same package and footprint allow drop-in board replacement without layout changes. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Matching supply voltage ensures compatibility with the same power rail and reference circuitry. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Identical temperature range guarantees the same environmental operating limits. |
| Metering Accuracy | 0.1% error over 500:1 dynamic range | 0.1% error over 500:1 dynamic range | Same accuracy specification ensures equivalent measurement performance in energy meters. |
| On-Chip Oscillator | Yes | Yes | Both include the internal oscillator, eliminating external clock components in either variant. |
| Anti-Tamper Detection | Yes | Yes | Both support tamper detection, preserving the same security features in the meter design. |
| Packaging / Ordering Format | Tube | Tape & Reel | Different packaging affects assembly line handling and reflow process, though the die is identical. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADE7751ARSZ | ADE7751ARSZRL |
|---|---|---|
| Part Status | Active | Active |
| Input Impedance | 390kOhm | 390kOhm |
| Measurement Error | 0.1% | 0.1% |
| Voltage - I / O High | 2.4V, 4V, 4.5V | 2.4V, 4V, 4.5V |
| Voltage - I / O Low | 0.5V, 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 is the difference between ADE7751ARSZ and ADE7751ARSZRL?
The ADE7751ARSZ and ADE7751ARSZRL are functionally identical devices; the difference is packaging format. ADE7751ARSZ is supplied in tube/tray packaging, while ADE7751ARSZRL is the tape-and-reel version intended for automated SMT assembly lines. Both are the same ADE7751 die in a 20-lead SSOP (RS-20) package.
Are ADE7751ARSZ and ADE7751ARSZRL electrically and functionally interchangeable?
Yes. Both order codes refer to the same ADE7751 energy metering IC in the same 20-lead SSOP package with identical electrical specifications. They differ only in shipping/packaging format (tube vs. tape-and-reel), so they are interchangeable in the target design.
What is the ADE7751 and what is its primary function?
The ADE7751 is an Analog Devices single-phase, bidirectional energy metering IC with on-chip fault detection. It integrates two second-order sigma-delta ADCs, a reference circuit, and a fixed-function DSP to compute active (real) energy, and it provides a fault output for tamper/metering-fault detection.
What package and pin count do ADE7751ARSZ and ADE7751ARSZRL use?
Both parts are offered in a 20-lead SSOP (Shrink Small Outline Package), identified by the "RS" suffix in the order code. The "Z" denotes RoHS-compliant lead-free construction per Analog Devices ordering conventions.
What supply voltage does the ADE7751 require?
The ADE7751 operates from a single 5 V supply (VDD = 5 V ±5%). Designers should confirm the exact limits in the current Analog Devices ADE7751 datasheet before finalizing the power supply.
What is the difference between the "Z" and non-"Z" versions of the ADE7751ARS?
The "Z" suffix in ADE7751ARSZ and ADE7751ARSZRL indicates RoHS-compliant, lead-free packaging per Analog Devices part numbering. Non-Z versions (e.g., ADE7751ARS) are the older leaded (non-RoHS) equivalents; the Z versions are the current recommended order codes.
Which order code should be selected for high-volume automated assembly?
ADE7751ARSZRL should be selected for high-volume automated SMT production because the RL suffix denotes tape-and-reel packaging, which is compatible with pick-and-place feeders. ADE7751ARSZ (tube/tray) is better suited to low-volume or prototype builds.
Does the ADE7751 support bidirectional energy measurement?
Yes. The ADE7751 is a bidirectional energy metering IC designed to measure active energy in both directions of power flow, making it suitable for single-phase utility meters that must detect reverse or exported energy.