DESCRIPTION
The MAS6502 is equipped with a standby function, i.e. the ADC is in power down between each conversion. By utilizing this and overall low power consumption, current consumption values of 2.5 µA (one pressure conversion in a second with full 14-bit accuracy) or less can be achieved. MAS6502 has an on-chip second order decimator filter to process the output of the second order ∆Σ -modulator. The ADC also has four selectable input signal ranges with one optional offset level. An internal trimmed clock oscillator provides a system clock signal (DCLK) eliminating the need for an external clock signal. A bi-directional I2C® bus compatible 2-wire serial bus is used for configuring conversion parameters, starting conversion and reading out the A/D conversion result. MAS6502 has one input channel suitable for a piezoresistive pressure sensor. In addition to pressure measurement the device can be configured also for temperature measurement. The 256-bit EEPROM memory is available for storing trimming and calibration data on chip.
Micro Analog systems
