AT1175 Datasheet | Aimtron Technology

Features ˙Resolution: 8-Bit ± 0.5 LSB(DNL) ˙Maximum Conversion Rate: 20 MSPS ˙Built-in Sample and Hold Function ˙Built-in Reference Voltage Self Bias Circuit ˙Single +5.0 V Power Supply ˙Three-State TTL patible Output ˙Direct Replacement for the Sony CXD1175 General Description The AT1175 is a CMOS two-step A/D converter capable of digitizing full-scale analog input signals into 8-bit digital words at sample rate of 20 MSPS. For most application, no external sample-andhold or video driving amplifiers are needed thanks to the device’s narrow aperture time, wide bandwidth, and low input capacitance. The AT1175 operates from a single +5.0V power supply and has an internal voltage reference, which eliminates the need for external reference circuitry. All digital inputs are CMOS patible and the tri-state outputs are TTLpatible. The AT1175 is ideal for most video and image processing applications that require low power dissipation and low cost. Applications ˙Video Digitizing ˙Personal puter Video ˙Multimedia ˙Digital Television Block Diagram Aimtron reserves the right without notice to change this circuitry and specifications. 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 : http://.aimtron..tw Fax: 886-3-563-0879 Email: service@aimtron..tw 1 Preliminary Product Information 8-Bit 20MSPS CMOS VIDEO A/D CONVERTER Pin Configuration Ordering Information Part number. AT1175S AT1175S_GRE Package SOP24( 300 mil) SOP24(300 mil),Green Marking AT1175S AT1175S, date code with one bottom line Pin Description PIN NAME FUNCTION Output Enable Control 1 OE D0~D7 Enabled When OE = Low D0~D7 at Tri-state When OE = High 2,24 3~10 11,13 12 16 DGND Digital GND D0~D7 Digital Output Data D0 (LSB), D7(MSB) 23 17 19 20 21 22 VRB VRT VIN Reference Voltage (Bottom) Reference Voltage (Top) Analog Input PIN 14 15 18 NAME FUNCTION AVDD Analog +5V Supply DVDD Digital +5V Supply CLK Clock Input AGND Analog GND VRBS...