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ADS6442IRGCR Datasheet(PDF) 5 Page - Texas Instruments |
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ADS6442IRGCR Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 82 page  ADS6445, ADS6444 ADS6443, ADS6442 www.ti.com SLAS531B – MAY 2007 – REVISED DECEMBER 2009 ELECTRICAL CHARACTERISTICS Typical values are at 25°C, min and max values are across the full temperature range TMIN = –40°C to TMAX = 85°C, AVDD = LVDD = 3.3V, maximum rated sampling frequency, 50% clock duty cycle, –1dBFS differential analog input, internal reference mode (unless otherwise noted). ADS6445 ADS6444 ADS6443 ADS6442 Fs = 125 MSPS Fs = 105 MSPS Fs = 80 MSPS Fs = 65 MSPS PARAMETER UNIT MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX RESOLUTION 14 14 14 14 Bits ANALOG INPUT Differential input voltage 2.0 2.0 2.0 2.0 VPP range Differential input 7 7 7 7 pF capacitance Analog input bandwidth 500 500 500 500 MHz Analog input common mode 155 130 100 81 μA current (per input pin of each ADC) REFERENCE VOLTAGES VREFB Internal reference bottom 1.0 1.0 1.0 1.0 V voltage VREFT Internal reference top 2.0 2.0 2.0 2.0 V voltage ΔVREF Internal reference error -15 ± 2 15 -15 ± 2 15 -15 ± 2 15 -15 ± 2 15 mV (VREFT–VREFB) VCM Common mode output 1.5 1.5 1.5 1.5 V voltage VCM output current ±4 ±4 ±4 ±4 mA capability DC ACCURACY No missing codes Assured Assured Assured Assured EO Offset error, across devices –15 ±2 15 –15 ±2 15 –15 ±2 15 –15 ±2 15 mV and across channels within a device Offset error temperature 0.05 0.05 0.05 0.05 mV/°C coefficient, across 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 -0.75 0.1 0.75 -0.75 0.1 0.75 -0.75 0.1 0.75 -0.75 0.1 0.75 % FS reference inaccuracy alone, ( ΔVREF /2.0) % Reference gain error 0.0125 0.0125 0.0125 0.0125 Δ%/°C temperature coefficient EGCHAN Gain error of channel alone, –1 ±0.3 1 –1 ±0.3 1 –1 ±0.3 1 –1 ±0.3 1 % FS across devices and across channels within a device(1) Channel gain error 0.005 0.005 0.005 0.005 Δ%/°C temperature coefficient, across devices and across channels within a device Differential nonlinearity, Fin –0.9 ±0.6 2.0 –0.9 ±0.6 2.0 –0.9 ±0.5 1.8 –0.9 ±0.5 1.8 LSB DNL = 50 MHz Integral nonlinearity, Fin = -5 ±3 5 -0.5 ±3 5 4.5 ±2 4.5 4.5 ±2 4.5 LSB INL 50 MHz PSRR DC power supply rejection 0.5 0.5 0.5 0.5 mV/V ratio POWER SUPPLY ICC Total supply current 502 410 360 320 mA IAVDD Analog supply current 410 322 280 245 mA (1) This is specified by design and characterization; it is not tested in production. Copyright © 2007–2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): ADS6445, ADS6444 ADS6443, ADS6442 |
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