A250F

The A250F is designed as one kind of high performance analog/digital gate array.The gate array can perform analog and/or digital functions.The gate array is silicon gate construction using a double-poly p-well process.The minimum gate channel length is 4 microns.Customization is done by single layer metal.

Features of the A250F can be summarized as:(1)ultra low noise;(2)fast rise time(4 ns at 0 pf);(3)internal gate pro delay-less than 5 ns;(4)output sink current per transistor 6 mA;(5)op amps with gain over 70 dB;(6)matched resistors and capacitors on chip;(7)300 equivalent gates in digital section;(8)single or dual supply operation.It can be used in (1)voltage reference;(2)phase locked loops,including the loop filter;(3)peak detectors and sample and hold circuits;(4)A to D and D to A converter with up to 8 bits resolution;(5)A set of filters.For example the chip can contain two "MF10" type filters plus other functions.

The absolute maximum ratings of the A250F also can be summarized as:(1)D.C. supply voltage:12 volts;(2)voltage on any pin:Vss-0.3 V to Vdd+0.3 V;(3)input current:+/-20 mA;(4)operating temperature:-10 to 85°C.If you want to know more information about this type,please download the datasheet in www.seekic.com and www.chinaicmart.com