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MSCPSI Datasheet(PDF) 1 Page - Mixed Signal Integration |
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MSCPSI Datasheet(HTML) 1 Page - Mixed Signal Integration |
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1 / 17 page  Description The Controller Programmable Sensor Interface (MSCPSI) is a hybrid package containing two CMOS integrated circuits for processing signals from either a sensor or MEMS device. Small analog signals are amplified, anti-aliased, and filtered before being converted into a digital signal output by the MSCP- SI. These processing functions are controlled by an internal PICTM processor through the MSCPSI's on- chip serial interface. The MSCPSI also includes off- set adjust, low power modes and an on-chip tem- perature sensor. The input is fed into a low noise amplifier followed by two 6th order Elliptic switched capacitor anti- aliasing filters. The gain of the filter is controllable via the serial interface up to 18 dB (6 dB steps). The next stage is a 6 pole Butterworth switched capacitor highpass filter, also with up to 18 dB of controllable gain. Following this is a 7th order Elliptic switched capacitor lowpass filter. These inter- nal filters can be bypassed via the serial interface. The 12 bit, 160 ksps A-to-D converter provides a digital output. The MSCPSI operates with a supply voltage from 3.3 VDC up to 5.5 VDC. It is available in a 64 pin LQFP Package with an industrial temperature range. There are 4 current levels that are selectable for the filter and 12-bit Analog-to-Digital Converter. Lower corner or sample frequency settings can be set for lower current operation. When the maxi- mum corner or sample frequency is needed, the currents can be set greater. Features Low Power Modes Low Noise Input: <30 nV/(Hz)1/2 at 100 Hz Anti Alias Filter with Adjustable Gain Lowpass Filter with Adjustable Gain Stage Programmable SC Highpass Filter with Gain Adjust Programmable SC Lowpass Filter with Gain Adjust Temperature Sensor Offset Adjust 12 bit 160 ksps A-to-D Converter 4 input Mux 14-bit PICTM Processor with 2k FLASH memory 10-bit 10 ksps A-to-D Converter w/ 5 input Mux Applications Low Noise Sensors MEMS Interface Accelerometer Sensing Pressure Sensing Vibration Sensing Temperature Sensing Test Equipment Cards/Data Acquisition Cards Absolute Maximum Ratings Power Supply Voltage +6V Storage Temperature Range -60 to +150°C Operating Temperature Range -45 to +85°C Controller Programmable Sensor Interface Preliminary Data Sheet © ©2 20 00 06 6 M Miixxeedd SSiiggnnaall IInntteeggrraattiioonn 1 1 08/2006 W Weebb SSiittee ““w ww ww w..m miixx-ssiigg..ccoom m”” |
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