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TDF8704T Datasheet(PDF) 2 Page - NXP Semiconductors |
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TDF8704T Datasheet(HTML) 2 Page - NXP Semiconductors |
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2 / 20 page  June 1994 2 Philips Semiconductors Product specification 8-bit high-speed analog-to-digital converter TDF8704 FEATURES • 8-bit resolution • Sampling rate up to 50 MHz • Extended temperature range (−40 to +85 °C) • High signal-to-noise ratio over a large analog input frequency range (7.4 effective bits at 4.43 MHz full-scale input and at fclk = 50 MHz) • Binary 3-state TTL outputs • Overflow/underflow 3-state TTL output • TTL compatible digital inputs • Low-level AC clock input signal allowed • Stable internal reference voltage regulator included • Power dissipation only 380 mW (typical) • Low analog input capacitance, no buffer amplifier required • No sample-and-hold circuit required. APPLICATIONS • General purpose high-speed analog-to-digital conversion for extended temperature applications • Automotive • RF, satellite and GPS (Global Positioning System) • Medical • General industrial • Digital video (VCR, TV and satellite). GENERAL DESCRIPTION The TDF8704T is an 8-bit high-speed analog-to-digital converter (ADC) for general industrial applications. It converts the analog input signal into 8-bit binary-coded digital words at a maximum sampling rate of 50 MHz. All digital inputs and outputs are TTL compatible, although a low-level AC clock input signal is allowed. QUICK REFERENCE DATA Note 1. Full-scale sine wave (fi = 4.43 MHz; fclk = 50 MHz). ORDERING INFORMATION SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VCCA analog supply voltage 4.75 5.0 5.25 V VCCD digital supply voltage 4.75 5.0 5.25 V VCCO output stages supply voltage 4.75 5.0 5.25 V ICCA analog supply current − 37 46 mA ICCD digital supply current − 23 35 mA ICCO output stages supply current − 16 21 mA ILE DC integral linear error −±0.4 ±1 LSB DLE DC differential linearity error −±0.2 ±0.5 LSB AILE AC integral linearity error note 1 −−±2 LSB fclk(max) maximum clock frequency 50 −− MHz Ptot total power dissipation − 380 535 mW TYPE NUMBER PACKAGE SAMPLING FREQUENCY PINS PIN POSITION MATERIAL CODE TDF8704T/2 24 SO24L plastic SOT137-1 20 MHz TDF8704T/4 24 SO24L plastic SOT137-1 40 MHz TDF8704T/5 24 SO24L plastic SOT137-1 50 MHz |
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