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ADC14C080 Datasheet(PDF) 7 Page - Texas Instruments |
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ADC14C080 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 31 page ADC14C080 www.ti.com SNAS375C – SEPTEMBER 2006 – REVISED APRIL 2013 ADC14C080 Dynamic Converter Electrical Characteristics Unless otherwise specified, the following specifications apply: AGND = DRGND = 0V, VA = +3.0V, VDR = +2.5V, Internal VREF = +1.2V, fCLK = 80 MHz, 50% Duty Cycle, DCS Disabled, VCM = VCMO, CL = 5 pF/pin, . Typical values are for TA = 25°C. Boldface limits apply for TMIN ≤ TA ≤ TMAX. All other limits apply for TA = 25°C (1) (2) Units Parameter Test Conditions Typical(3) Limits (Limits)(4) DYNAMIC CONVERTER CHARACTERISTICS, AIN= -1dBFS FPBW Full Power Bandwidth -1 dBFS Input, −3 dB Corner 1.0 GHz fIN = 10 MHz 74.2 dBFS SNR Signal-to-Noise Ratio fIN = 70 MHz 72 dBFS fIN = 170 MHz 70.5 69 dBFS fIN = 10 MHz 90 dBFS SFDR Spurious Free Dynamic Range fIN = 70 MHz 88 dBFS fIN = 170 MHz 86 82 dBFS fIN = 10 MHz 12 Bits ENOB Effective Number of Bits fIN = 70 MHz 11.6 Bits fIN = 170 MHz 11.4 11.1 Bits fIN = 10 MHz −90 dBFS THD Total Harmonic Disortion fIN = 70 MHz −85 dBFS fIN = 170 MHz −85 -80.5 dBFS fIN = 10 MHz −100 dBFS H2 Second Harmonic Distortion fIN = 70 MHz −95 dBFS fIN = 170 MHz −86 -82 dBFS fIN = 10 MHz −90 dBFS H3 Third Harmonic Distortion fIN = 70 MHz −88 dBFS fIN = 170 MHz −88 -82 dBFS fIN = 10 MHz 74 dBFS SINAD Signal-to-Noise and Distortion Ratio fIN = 70 MHz 71.8 dBFS fIN = 170 MHz 70.2 68.6 dBFS fIN = 19.5MHz and 20.5MHz, each - IMD Intermodulation Distortion -82 dBFS 7dBFS (1) The inputs are protected as shown below. Input voltage magnitudes above VA or below GND will not damage this device, provided current is limited per Note 4 of the Absolute Maximum Ratings Table. However, errors in the A/D conversion can occur if the input goes above 2.6V or below GND as described in the Operating Ratings section. See Figure 2. (2) With a full scale differential input of 2VP-P , the 14-bit LSB is 122.1 µV. (3) Typical figures are at TA = 25°C and represent most likely parametric norms at the time of product characterization. The typical specifications are not ensured. (4) Parameters specified in dBFS indicate the value that would be attained with a full-scale input signal. Copyright © 2006–2013, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: ADC14C080 |
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