Product Overview
The Allegro A1301 and A1302 are continuous-time, ratiometric, linear Hall-effect sensor ICs designed to provide a voltage output proportional to an applied magnetic field. Optimized for accuracy, these devices feature a quiescent output voltage that is 50% of the supply voltage and offer two output sensitivity options: 2.5 mV/G for the A1301 and 1.3 mV/G for the A1302. Integrated Hall circuit, linear amplifier, and CMOS Class A output structure minimize analog signal issues. High precision is achieved through factory-programmed gain and offset trim adjustments. These sensors are ideal for position sensing in linear and rotational motion applications, suitable for industrial environments with extended temperature ranges from 40C to 125C. Available in SOT23W (LH) and SIP (UA) packages, they are lead-free with matte tin plated leadframes.
Product Attributes
- Brand: Allegro MicroSystems, LLC
- Material: Lead (Pb) free with 100% matte tin plated leadframes
Technical Specifications
| Model | Package Type | Operating Temperature Range | Typical Sensitivity | Packing |
|---|---|---|---|---|
| A1301EUA-T | SIP | 40C to 85C | 2.5 mV/G | Bulk, 500 pieces/bag |
| A1301KLHLT-T | Surface Mount (SOT23W) | 40C to 125C | 2.5 mV/G | 7-in. reel, 3000 pieces/reel |
| A1301KLHLX-T | Surface Mount (SOT23W) | 40C to 125C | 2.5 mV/G | 13-in. reel, 10000 pieces/reel |
| A1301KUA-T | SIP | 40C to 125C | 2.5 mV/G | Bulk, 500 pieces/bag |
| A1302ELHLT-T | Surface Mount (SOT23W) | 40C to 85C | 1.3 mV/G | 7-in. reel, 3000 pieces/reel |
| A1302ELHLX-T | Surface Mount (SOT23W) | 40C to 85C | 1.3 mV/G | 13-in. reel, 10000 pieces/reel |
| A1302KLHLT-T | Surface Mount (SOT23W) | 40C to 125C | 1.3 mV/G | 7-in. reel, 3000 pieces/reel |
| A1302KLHLX-T | Surface Mount (SOT23W) | 40C to 125C | 1.3 mV/G | 13-in. reel, 10000 pieces/reel |
| A1302KUA-T | SIP | 40C to 125C | 1.3 mV/G | Bulk, 500 pieces/bag |
Key Features
- Continuous-time operation
- Ratiometric rail-to-rail output
- Low-noise output
- Fast power-on time
- 4.5 to 6.0 V operation
- Solid-state reliability
- Factory-programmed for optimum performance
- Robust ESD performance
Electrical Characteristics (Typical, VCC = 5 V)
| Characteristic | Symbol | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| Supply Voltage | VCC | 4.5 | 6 | V | |
| Supply Current | ICC | 11 | mA | ||
| Output Bandwidth | BW | 20 | kHz | ||
| Power-On Time | tPO | 3 | 5 | s | |
| Output Resistance | ROUT | 2 | 5 | ||
| Wide Band Output Noise (rms) | VOUTN | 150 | V |
Magnetic Characteristics (Typical, TA = 25C)
| Characteristic | Symbol | Model | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|---|
| Quiescent Output Voltage | VOUTQ | 2.5 | V | |||
| Magnetic Sensitivity | Sens | A1301 | 2.0 | 2.5 | 3.0 | mV/G |
| Magnetic Sensitivity | Sens | A1302 | 1.0 | 1.3 | 1.6 | mV/G |
Absolute Maximum Ratings
| Characteristic | Symbol | Rating | Units |
|---|---|---|---|
| Supply Voltage | VCC | 8 | V |
| Output Voltage | VOUT | 8 | V |
| Reverse Supply Voltage | VRCC | 0.1 | V |
| Reverse Output Voltage | VROUT | 0.1 | V |
| Output Sink Current | IOUT | 10 | mA |
| Maximum Junction Temperature | TJ(max) | 165 | C |
| Storage Temperature | Tstg | 65 to 170 | C |
Package Information
Package LH: 3-Pin SOT23W (Surface Mount)
Package UA: 3-Pin SIP (Through-hole Mount)
Note: These parts are classified as LAST TIME BUY and are restricted to existing customer applications. They should not be purchased for new design applications due to obsolescence.
1811141123_ALLEGRO-A1302ELHLT-T_C163317.pdf
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