Part A
ACS724KMATR-65AB-T
Allegro MicroSystems
- Lifecycle
- Active
- Stock
- 4288 Stückzahl
- Package
- SOIC-W-16
- Series
- Stromsensoren
Replacement verdict
Compatible functional replacement candidate
The ACS724KMATR-65AB-T is not a pin-compatible drop-in for the ACS722LLCTR-05AB-T, but it can serve as a functional replacement candidate in applications where the wider measurement range, higher isolation rating, and different package footprint are acceptable. Both devices share the same analog ratiometric output architecture and bidirectional current sensing principle, enabling straightforward migration with appropriate PCB redesign and validation of the increased current range against system requirements.
Current Sensing Range
Validation required
Output Type
High match
Package Type
Not compatible
Isolation Voltage
Validation required
Parts at a glance
Part B
ACS722LLCTR-05AB-T
Allegro MicroSystems
- Lifecycle
- Active
- Stock
- 7660 Stückzahl
- Package
- SOIC-N-8
- Series
- Stromsensoren
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ACS722LLCTR-05AB-T | ACS724KMATR-65AB-T | Why it matters |
|---|---|---|---|
| Current Sensing Range | ±5 A | ±65 A | Defines the maximum measurable current; a 13x difference means the two parts are not functionally interchangeable for the same load. |
| Sensitivity | 264 mV/A | 30.75 mV/A | Determines output voltage per amp of sensed current; different sensitivity requires different ADC scaling and signal conditioning. |
| Supply Voltage | 3.0 V to 3.6 V | 4.5 V to 5.5 V | Incompatible supply rails mean the parts cannot drop into the same board without a level/power change. |
| Isolation Voltage (Working) | 420 V RMS (basic isolation) | 510 V RMS (basic isolation) | Higher isolation rating allows use in higher-voltage systems; lower-rated part may not meet safety margins in the same application. |
| Package | 8-lead SOIC (LL suffix) | 16-lead SOICW (MA suffix) | Different footprints and pin counts prevent direct PCB drop-in replacement. |
| Operating Temperature Range | -40 °C to 150 °C | -40 °C to 125 °C | Affects thermal derating and suitability for high-temperature environments; the wider-range part offers more margin. |
| Bandwidth | 80 kHz | 120 kHz | Determines maximum signal frequency that can be accurately sensed; affects response time in control loops. |
| Output Type | Analog ratiometric voltage | Analog ratiometric voltage | Both provide ratiometric analog output, so signal interpretation is similar, but scaling differs due to sensitivity. |
| Typical Accuracy (Total Error) | ±2.5% (at 25 °C) | ±1.5% (at 25 °C) | Tighter accuracy improves measurement fidelity; substitution may require recalibration to maintain system precision. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ACS724KMATR-65AB-T | ACS722LLCTR-05AB-T |
|---|---|---|
| Part Status | Active | Active |
| For Measuring | AC/DC | AC/DC |
| Sensor Type | Hall Effect, Differential | Hall Effect, Open Loop |
| Current - Sensing | 65A | 5A |
| Number of Channels | 1 | 1 |
| Output | Ratiometric, Voltage | Ratiometric, Voltage |
| Sensitivity | 30.75mV/A | 264mV/A |
| Frequency | DC ~ 120kHz | DC ~ 80kHz |
| Linearity | ±1% | ±1% |
| Accuracy | ±1% | ±3% |
| Voltage - Supply | 4.5V ~ 5.5V | 3V ~ 3.6V |
| Response Time | 4µs | 5µs |
| Current - Supply (Max) | 14mA | 12mA |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 150°C |
| Polarization | Bidirectional | Bidirectional |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the ACS722LLCTR-05AB-T and the ACS724KMATR-65AB-T?
The ACS722LLCTR-05AB-T is a 5 A bidirectional Hall-effect current sensor in an SOIC-8 package, while the ACS724KMATR-65AB-T is a 65 A bidirectional Hall-effect current sensor in a wider-body SOIC-16 package. The ACS724 also offers higher isolation working voltage and a different sensitivity range compared to the ACS722.
Are the ACS722LLCTR-05AB-T and ACS724KMATR-65AB-T pin-compatible?
No. The ACS722LLCTR-05AB-T uses an SOIC-8 package, and the ACS724KMATR-65AB-T uses an SOIC-16 wide-body package. They have different pin counts, pin functions, and PCB land patterns, so they are not drop-in replacements.
What is the current measurement range of each device?
The ACS722LLCTR-05AB-T has a bidirectional measurement range of ±5 A. The ACS724KMATR-65AB-T has a bidirectional measurement range of ±65 A. Both are factory-trimmed for accuracy over their specified ranges.
What supply voltage do these current sensors require?
Both the ACS722LLCTR-05AB-T and the ACS724KMATR-65AB-T operate from a single 3.3 V supply. The ACS722LLCTR-05AB-T is specified for 3.3 V operation, and the ACS724KMATR-65AB-T is also specified for 3.3 V operation.
What is the isolation voltage rating for each part?
The ACS722LLCTR-05AB-T provides basic isolation with a working voltage of 420 VRMS or 600 VDC and a dielectric strength of 2.4 kVRMS for 1 minute. The ACS724KMATR-65AB-T provides reinforced isolation with a working voltage of 1097 VDC or 776 VRMS and a dielectric strength of 4.8 kVRMS for 1 minute.
What is the sensitivity of each sensor?
The ACS722LLCTR-05AB-T has a typical sensitivity of 264 mV/A. The ACS724KMATR-65AB-T has a typical sensitivity of 30.3 mV/A. These values are factory-programmed and vary slightly between the -05AB and -65AB variants.
Can the ACS724KMATR-65AB-T be used to replace the ACS722LLCTR-05AB-T in an existing design?
No, not without a complete redesign. The two devices differ in package footprint, pinout, current range, sensitivity, and isolation rating. The ACS724KMATR-65AB-T cannot be substituted directly for the ACS722LLCTR-05AB-T on the same PCB without layout changes and validation of the new electrical and isolation parameters.
What are the typical applications for each sensor?
The ACS722LLCTR-05AB-T is typically used in low-current sensing applications such as motor control, load detection, and power management in industrial and consumer equipment. The ACS724KMATR-65AB-T is used in higher-current applications such as automotive systems, industrial motor drives, and high-power battery management where reinforced isolation and a wider current range are required.