DESCRIPTION

· The ADAF1080 is a single-axis, high-precision magnetic-field sensor with integrated signal conditioning.

· It incorporates an AMR sensor and an ASIC within one package.

· Provides a precision amplified output signal proportional to the magnetic field strength along the sensitive axis.

· Features electrical-offset cancellation, integrated diagnostics, and an ADC driver.

· Available in a 20-lead LFCSP with an exposed pad.

FEATURES

· Single-axis, high-precision AMR magnetic field sensor.

· Maximum magnetic field strength for linear operation up to ±8 mT.

· Output noise density: 6 nT/√Hz.

· >100 dB dynamic range.

· Temperature compensated output and integrated precision instrumentation amplifier.

· Up to 2.2 MHz bandwidth at gain = 20.

· Programmable chopping and synchronization features.

· Ratiometric output capability and programmable gain for 1.8 V to 5 V ADC range.

· Wide and user-selectable output common-mode voltage.

· Integrated electrical offset cancellation and diagnostics.

· Temperature range: –40°C to +125°C.

· Supply voltage range: 4.5 V to 5.5 V.

APPLICATIONS

· Isolated and contactless current sensing.

· Handheld current clamp meters.

· Motor control current sense.

· AC and DC power applications.

· Precision magnetic field sensing applications.

· Precision linear encoders.

· Low-noise, precision magnetometers.