ACHS-7122-000E
Magnetic Sensors
Voltage - Supply: 4.5V~5.5V
Sensitivity: 100mV/A
Technical Specifications
| Type | Description |
|---|---|
| Standby Current | - |
| Current Range | 20A |
| Band Width | 80kHz |
| Current Terminal Resistance | 0.7mOhm |
| Response Time (tr) | 4us |
| Sensitivity | 100mV/A |
| Type | Description |
|---|---|
| Bidirectional Current Detection | Support |
| Supply Voltage | 4.5V~5.5V |
| Operating Temperature | -40°C~+110°C |
| Features | Bidirectional detection;Power-on reset |
| Package / Case | SOIC-8 |
Product Introduction
The ACHS-7121/7122/7123 product series is a fully integrated Hall Effect-based isolated linear current sensor device family designed for AC or DC current sensing in industrial, commercial, and communications systems. Each of the ACHS-7121/7122/7123 consists of a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field that the Hall IC converts into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer.
A precise, proportional voltage is provided by the low-offset, chopper-stabilized CMOS Hall IC, which is programmed for accuracy after packaging. The output of the device has a positive slope when an increasing current flows through the primary copper conduction path (from pins 1 and 2, to pins 3 and 4), which is the path used for current sampling.
The internal resistance of this conductive path is 0.7 mΩ typical, providing low-power loss. The terminals of the conductive path are electrically isolated from the signal leads (pins 5 through 8). This performance is delivered in a compact, surface mountable, SO-8 package that meets worldwide regulatory safety standards.
Features
- Wide operating temperature: -40℃ to 110℃
- Primary conductor resistance: 0.7 mΩ typ.
- Sensing current range: ±10A, ±20A, and ±30A
- Output sensitivity: 66 to 185 mV/A
- Output voltage proportional to AC or DC currents
- Ratiometric output from supply voltage
- Single supply operation: 5.0V
- Low-noise analog signal path
- Device bandwidth is set via FILTER pin: 80 kHz typ. Bandwidth with 1-nF filter capacitor
- Factory-trimmed for accuracy
- Extremely stable output offset voltage
- Near zero magnetic hysteresis
- Typical total output error of ±1.5%
- >25 kV/μs Common-Mode Transient Immunity
- Small footprint, low-profile SO-8 package
- Worldwide Safety Approval: UL, CSA: Isolation Voltage 3 kVRMS, 1 minute
Applications
- Low-power inverter current sensing
- Motor phase and rail current sensing
- Solar inverters
- Chargers and converters
- Switching power supplies
Datasheet
Alternative Parts
Common ACHS-7122-000E alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 9030899090 |
| USHTS | 9030890100 |
| TARIC | 9030890000 |
| Type | Details |
|---|---|
| CAHTS | 9030890090 |
| BRHTS | 90308990 |
| INHTS | 90308990 |
| MXHTS | 9030.89.99 |
Sourcing Information
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