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2 / 20 page 1999 Oct 06 2 Philips Semiconductors Preliminary specification 8-bit, low-power, 3 V, 100 Msps Analog-to-Digital Converter (ADC) TDA8793 FEATURES • 8-bit low-power ADC (170 mW typical) • 2.7 to 3.6 V operation • Sampling rate up to 100 Msps • Track-and-hold circuit • CMOS/TTL compatible digital inputs and outputs • Internal references • Adjustable full scale range possibility with external reference • Power-down mode; 5 mW. APPLICATIONS • Radio communications • Digital data storage read channels • Medical imaging • Digital instrumentation. GENERAL DESCRIPTION The TDA8793 is an 8-bit low-power Analog-to-Digital Converter (ADC) which includes a track-and-hold circuit and internal references. The device converts an analog input signal, up to 100 MHz, into 8-bit binary codes at a maximum sample rate of 100 Msps. All digital inputs and output are TTL/CMOS compatible. A sine wave clock input signal can also by used. The Power-down mode enables the device power consumption to be reduced to 5 mW. QUICK REFERENCE DATA ORDERING INFORMATION SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VCCA analog supply voltage 2.7 3.0 3.6 V VCCD digital supply voltage 2.7 3.0 3.6 V VCCO output stages supply voltage 2.7 3.0 3.6 V ICCA analog supply current operating 32 40 48 mA standby 0 5 100 µA ICCD digital supply current operating 13 16 22 mA standby 0 0.65 1.1 mA ICCO output stages supply current − 0.1 − mA INL integral non-linearity ramp input; fCLK = 2 MHz; VCCA =VCCD =3V −±0.8 tbf LSB DNL differential non-linearity ramp input; fCLK = 2 MHz; VCCA =VCCD =3V −±0.25 tbf LSB fCLK(max) maximum clock input frequency 100 −− MHz Ptot total power dissipation VCC =3V − 170 − mW TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TDA8793HL LQFP32 plastic low profile quad flat package; 32 leads; body 5 × 5 × 1.4 mm SOT401-1 |
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