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ADS6444MRGCTEP Datasheet(PDF) 6 Page - Texas Instruments |
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ADS6444MRGCTEP Datasheet(HTML) 6 Page - Texas Instruments |
6 / 66 page ADS6445-EP ADS6444-EP SLAS573C – FEBRUARY 2008 – REVISED MAY 2013 www.ti.com ELECTRICAL CHARACTERISTICS Typical values are at 25°C, min and max values are across the full junction temperature range TJ,MIN = –55°C to TJ,MAX = 125°C, AVDD = LVDD = 3.3 V, maximum rated sampling frequency, 50% clock duty cycle, –1 dBFS differential analog input, internal reference mode (unless otherwise noted). ADS6445 ADS6444 UNIT Fs = 125 MSPS Fs = 105 MSPS PARAMETER MIN TYP MAX MIN TYP MAX RESOLUTION 14 14 Bits ANALOG INPUT Differential input voltage range 2.0 2.0 VPP Differential input capacitance 7 7 pF Analog input bandwidth 500 500 MHz Analog input common mode current (per input pin 155 130 μA of each ADC) REFERENCE VOLTAGES VREFB Internal reference bottom voltage 1.0 1.0 V VREFT Internal reference top voltage 2.0 2.0 V ΔVREF Internal reference error (VREFT–VREFB) 0.985 1 1.015 0.985 1 1.015 V VCM Common mode output voltage 1.5 1.5 V VCM output current capability ±4 ±4 mA DC ACCURACY No missing codes Assured Assured EO Offset error, across devices and across channels –15 ±2 15 –15 ±2 15 mV within a device Offset error temperature coefficient, across 0.05 0.05 mV/°C devices and across channels within a device There are two sources of gain error - internal reference inaccuracy and channel gain error EGREF Gain error due to internal reference inaccuracy -0.75 0.1 0.75 -0.75 0.1 0.75 % FS alone, ( ΔVREF /2.0) % Reference gain error temperature coefficient 0.0125 0.0125 Δ%/°C EGCHAN Gain error of channel alone, across devices and ±0.3 ±0.3 % FS across channels within a device Channel gain error temperature coefficient, across 0.005 0.005 Δ%/°C devices and across channels within a device DNL Differential nonlinearity, Fin = 50 MHz –0.99 ±0.6 2.0 –0.99 ±0.6 2.0 LSB INL Integral nonlinearity, Fin = 50 MHz -5 ±3 5 -5 ±3 5 LSB PSRR DC power supply rejection ratio 0.5 0.5 mV/V POWER SUPPLY ICC Total supply current 502 410 mA IAVDD Analog supply current 410 322 mA ILVDD LVDS supply current 92 88 mA Total power 1.65 1.8 1.35 1.5 W Power down (with input clock stopped) 77 150 77 150 mW 6 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: ADS6445-EP ADS6444-EP |
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