CHI612

Description 

The CHI612 is a customer programmable, low noise high accuracy linear Hall effect-based sensor IC. 

It is packaged in subminiature package to allow for easy integration with a magnetic core to create a 

highly accurate current sensing module. The programmable nature of the CHI612 enables it to account 

for manufacturing tolerances in the final current sensing module assembly.

These ratiometric Hall effect sensor ICs provide a voltage output that is proportional to the applied 

magnetic field. The quiescent voltage output is user adjustable around 50% of the supply voltage and the 

output sensitivity is programmable within a range of 1 mV/G to 24 mV/G.

This temperature-stable device is available in a through-hole single in-line package (TO-92S). The 

accuracy of the device is enhanced via programmability on the OUT pin for end of-line optimization 

without the added complexity and cost of a fully programmable device. The device using EERPOM to 

optimize device sensitivity and the quiescent output voltage (QVO) (output with no magnetic field) for a 

given application or circuit. The CHI612 also allow for optimized performance over temperature through 

programming the temperature coefficient for both Sensitivity and QVO at end of line test.

The features of this linear device makes it ideal for use in industrial applications requiring high accuracy 

and are guaranteed over a wide temperature range, –40°C to+150°C.

Features 

• Linear Hall, customer programmable, high resolution offset and 

sensitivity trimming with EEPROM

• Programmable sensitivity range between 1 and 24mV/G

• Factory programmed sensitivity and quiescent output voltage TC 

with extremely stable temperature performance

• Temperature stable quiescent voltage output and sensitivity

• Extremely low noise and high resolution

• 120kHz bandwidth achieved with optimized chopper stabilization 

techniques

• Under-voltage protection

• Output voltage clamp provides short circuit diagnostic 

• Output spiking suppress during fast current step inputs

• Wide temperature range: -40oC to 150oC

• Lead Free Package: Flat TO-92, TO-94, SOT-89-3L

• High ESD Protection

• RoHS Compliant 2011/65/EU

Applications 

• Industrial, Home

appliances

• Current sensing

• Motor control

• Linear Position Detection 

• Rotary Position Sensing

• Magnetic Encoder

• Ferrous metal sensing

• Liquid level sensing

• Vibration sensing

• Weight sensing