The A1301 and A1302 are continuous-time, ratiometric, linear Hall-effect sensors. They are optimized to accurately provide a voltage output that is proportional to an applied magnetic field. These devices have a quiescent output voltage that is 50% of the supply voltage. Two output sensitivity options are provided: 2.5 mV/G typical for the A1301, and 1.3 mV/G typical for the A1302. The Hall-effect integrated circuit included in each device includes a Hall sensing element, a linear amplifier, and a CMOS Class A output structure. Integrating the Hall sensing element and the amplifier on a single chip minimizes many of the problems normally associated with low voltage level analog signals. High precision in output levels is obtained by internal gain and offset trim.
The A1301 and A1302 are continuous-time, ratiometric, linear Hall-effect sensors optimized to provide a voltage output proportional to an applied magnetic field. These devices feature a quiescent output voltage of 50% of the supply voltage and offer two sensitivity options: 2.5 mV/G typical for the A1301 and 1.3 mV/G typical for the A1302.
The sensors are available in two package types: LH, a 3-pin SOT-23W type for surface mount applications, and UA, a 3-pin ultramini SIP for through-hole mounting. Both packages are offered in lead-free versions.
| Supply Voltage | 4.5 to 6 V |
|---|---|
| Output Bandwidth | 20 kHz |
| Power-On Time | 3 to 6 us |
| Output Resistance | 2 to 5 Ohms |
| A1301 Sensitivity (Typical) | 2.5 mV/G |
| A1302 Sensitivity (Typical) | 1.3 mV/G |
The devices have a quiescent output voltage that is 50% of the supply voltage.
The sensors are available in LH (3-pin SOT23W) and UA (3-pin ultramini SIP) packages.