Product Overview
The Allegro A1318 and A1319 are high-accuracy, temperature-stable linear Hall-effect sensor ICs designed for applications requiring precise displacement and angular position sensing. These devices feature non-volatile memory for end-of-line optimization of sensitivity and quiescent voltage output (QVO), ensuring sustained performance across an extended operating temperature range of 40C to 150C. Available in miniature surface-mount (SOT-23W) and through-hole (SIP) packages, they offer a ratiometric voltage output proportional to the applied magnetic field. Ideal for demanding automotive and industrial applications, they incorporate features like high-bandwidth, low-noise analog output, short-circuit diagnostic capabilities, and immunity to mechanical stress.
Product Attributes
- Brand: Allegro
- Technology: BiCMOS monolithic circuit
- Lead Finish: 100% matte-tin leadframe plating
- Certifications: Enhanced EMC performance for stringent automotive applications
- Package Types: SOT-23W (LH), Ultramini SIP (UA)
Technical Specifications
| Model | Supply Voltage (VCC) | Sensitivity (typ) (mV/G) | Quiescent Voltage Output (QVO) (typ) (V) | Sensitivity Temp. Coeff. (TCSens) (%/C) | Operating Ambient Temp. (C) | Package |
|---|---|---|---|---|---|---|
| A1318LLHLX-1-T | 3.3 V | 1.35 | 1.65 | 0.08 - 0.16 | -40 to 150 | 3-pin SOT-23W |
| A1318LLHLX-2-T | 3.3 V | 2.5 | 1.65 | 0.08 - 0.16 | -40 to 150 | 3-pin SOT-23W |
| A1318LUATN-2-T | 3.3 V | 2.5 | 1.65 | 0.08 - 0.16 | -40 to 150 | 3-pin SIP |
| A1319LLHLX-5-T | 3.3 V | 5 | 1.65 | 0.08 - 0.16 | -40 to 150 | 3-pin SOT-23W |
| A1319LUATN-5-T | 3.3 V | 5 | 1.65 | 0.08 - 0.16 | -40 to 150 | 3-pin SIP |
| General Characteristics: | ||||||
| Supply Voltage (VCC) | 3 to 3.63 V | N/A | N/A | N/A | N/A | N/A |
| Supply Current (ICC) | N/A | N/A | N/A | N/A | 7.7 mA (typ) | N/A |
| Internal Bandwidth (BWi) | N/A | N/A | N/A | N/A | 20 kHz (typ) | N/A |
| Chopping Frequency (fC) | N/A | N/A | N/A | N/A | 400 kHz (typ) | N/A |
| Output Referred Noise (VN) | N/A | N/A | N/A | N/A | 13 mV(p-p) (typ) | N/A |
| Output Voltage Clamp (High) | N/A | N/A | N/A | N/A | 2.842 to 3.069 V (typ) | N/A |
| Output Voltage Clamp (Low) | N/A | N/A | N/A | N/A | 0.264 to 0.462 V (typ) | N/A |
| Linearity Sensitivity Error | N/A | N/A | N/A | 1.5 % | N/A | N/A |
| Symmetry Sensitivity Error | N/A | N/A | N/A | 1.5 % | N/A | N/A |
| Ratiometry Quiescent Voltage Output Error | N/A | N/A | N/A | 1.5 % | N/A | N/A |
| Ratiometry Sensitivity Error | N/A | N/A | N/A | 1.5 % | N/A | N/A |
| Ratiometry Clamp Error | N/A | N/A | N/A | 1.5 % | N/A | N/A |
| Typical Quiescent Voltage Output Drift Across Temp. (A1318) | N/A | N/A | -18 to 8 mV (typ) | N/A | N/A | N/A |
| Typical Quiescent Voltage Output Drift Across Temp. (A1319) | N/A | N/A | -20 to 20 mV (typ) | N/A | N/A | N/A |
| Sensitivity Drift Due to Package Hysteresis | N/A | N/A | N/A | 2 % | N/A | N/A |
| Package LH Dimensions (mm) | N/A | N/A | N/A | N/A | N/A | 2.0 x 3.0 x 1.0 (approx) |
| Package UA Dimensions (mm) | N/A | N/A | N/A | N/A | N/A | 1.5 x 4.0 x 3.0 (approx) |
2410010303_ALLEGRO-A1318LLHLT-2-T_C146416.pdf
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