The TMAG6180-Q1 is a high-precision angle sensor based on the AMR sensor technology vertically integrated on top of the integrated amplifiers on silicon. The differential output sine and cosine signals from the AMR sensor are proportional to the angle of the applied magnetic field. The sine and cosine signals are internally signal conditioned, temperature compensated, and driven by differential output amplifiers with the ability to drive large capacitive loads. The output voltages of the AMR sensor are ratiometric to the supply voltage, therefore the external ADC can use the supply voltage as a reference.

TMAG6180-Q1 integrates X and Y Hall sensors to provide quadrature outputs on pins Q0 and Q1, respectively. The Hall effect sensors are chopper stabilized, signal conditioned, and multiplexed to provide two digital latched outputs. These outputs can be used to extend the angle sensing range of the AMR sensor from 180 degrees to 360 degrees.

The TMAG6180-Q1 contains the following functional and building blocks:

• The Power Management and Oscillators block contains internal regulators, biasing circuitry, a low-frequency, wake-up oscillator and a high-frequency, wake-up oscillator, overvoltage detection circuitry, and undervoltage detection circuitry
• The AMR sensor contains two Wheatstone bridges made of magnetic resistive sensors, each sensing one of the components of the applied magnetic field, the sine and the cosine components.
• The AMR sensing path contains the signal conditioning amplifiers, offset compensation, automatic gain control circuitry and the output drivers.
• The Quadrature Detection Path contains the X and Y Hall sensors, related biasing circuitry, signal conditioning, logic comparators and digital logic to drive the Q1 and Q0 outputs
• The Internal memory block supports the factory-programmed values
• The diagnostic blocks support background diagnostic checks of the internal circuitry