AT1175
Preliminary Product Information
8-Bit 20MSPS CMOS VIDEO A/D CONVERTER
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email: service@aimtron.com.tw
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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 Compatible Output
˙ Direct Replacement for the Sony CXD1175
Applications
˙ Video Digitizing
˙ Personal Computer Video
˙ Multimedia
˙ Digital Television
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-and-
hold 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
compatible and the tri-state outputs are TTL-
compatible. The AT1175 is ideal for most video
and image processing applications that require
low power dissipation and low cost.
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.