AK8998W

Preliminary [AK8998/W/D] AK8998/W/D The AK8998 is a pressure sensor interface IC that features compensation for temperature drift and sensor variation. It is designed to excite and interface to a bridge sensor. Variations in the sensor can be corrected via compensation values stored in integrated non-volatile memory (EEPROM). Compensation values are obtained from measurement results for a set of offset voltages and temperature drift, along with a set of bridge voltages and temperature drift, including characteristics of the AK8998. The AK8998 is available in a 16-pin QFN package, in wafer form and in a tray. Features Pressure sensor compensation and excitation IC (Analog output) Supply voltage current: 7.1mA max @10kHz sampling Supply voltage: 3.0V±5%, 3.3V±5%, 5.0V±5% Operating temperature range: -20 to 85ºC Integrated sensor output compensation (AK8998 Input conversion) Offset voltage adjustment - Adjustment range: Rough ±13 to ±373mV / Fine ±1 to ±34mV @5.0V - Adjustment step: Rough 2 to 53mV /step / Fine 0.01 to 0.27mV /step @5.0V Offset voltage temperature drift adjustment (1st order coefficient) - Adjustment range: ±0.04 to ±1.23mV/ºC @5.0V - Adjustment step: 0.2 to 4.8µV/ºC @5.0V Output span voltage adjustment (G1, G2, G3) - Total adjustment range: 5.7 to 261.6mV @5.0V - G1 adjustment step : 0.95 to 74.7mV /step @5.0V - G2 adjustment step : 5.7 to 130.8mV /step @5.0V - G3 adjustment step : 0.01 to 0.40mV /step @5.0V Sensitivity ...