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ADS4225 Datasheet(PDF) 9 Page - Texas Instruments |
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ADS4225 Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 104 page  ADS4222, ADS4225, ADS4226 ADS4242, ADS4245, ADS4246 www.ti.com SBAS533C – MARCH 2011 – REVISED JUNE 2011 ELECTRICAL CHARACTERISTICS: GENERAL Typical values are at +25 °C, AVDD = 1.8V, DRVDD = 1.8V, 50% clock duty cycle, and –1dBFS differential analog input, unless otherwise noted. Minimum and maximum values are across the full temperature range: TMIN = –40°C to TMAX = +85°C, AVDD = 1.8V, and DRVDD = 1.8V. ADS4246/ADS4226 (160MSPS) ADS4245/ADS4225 (125MSPS) ADS4242/ADS4222 (65MSPS) PARAMETER MIN TYP MAX MIN TYP MAX MIN TYP MAX UNIT ANALOG INPUTS Differential input voltage range (0dB gain) 2 2 2 VPP Differential input resistance (at 200MHz) 0.75 0.75 0.75 k Ω Differential input capacitance (at 200MHz) 3.7 3.7 3.7 pF Analog input bandwidth 550 550 550 MHz (with 50 Ω source impedance, and 50Ω termination) Analog input common-mode current 1.5 1.5 1.5 µA/MSPS (per input pin of each channel) Common-mode output voltage VCM 0.95 0.95 0.95 V VCM output current capability 4 4 4 mA DC ACCURACY Offset error –15 2.5 15 –15 2.5 15 –15 2.5 15 mV Temperature coefficient of offset error 0.003 0.003 0.003 mV/ °C Gain error as a result of internal EGREF –2 2 –2 2 –2 2 %FS reference inaccuracy alone Gain error of channel alone EGCHAN ±0.1 –1 ±0.1 ±0.1 –1 %FS Temperature coefficient of EGCHAN 0.002 0.002 0.002 Δ%/°C POWER SUPPLY IAVDD 123 150 105 130 73 85 mA Analog supply current IDRVDD Output buffer supply current 111 135 99 120 78 95 mA LVDS interface, 350mV swing with 100 Ω external termination, fIN = 2.5MHz IDRVDD Output buffer supply current 61 49 28 mA CMOS interface, no load capacitance (1) fIN = 2.5MHz Analog power 222 189 133 mW Digital power LVDS interface, 350mV swing with 100 Ω external 199 179 131 mW termination, fIN = 2.5MHz Digital power CMOS interface, no load capacitance (1) 109 88 50 mW fIN = 2.5MHz Global power-down 25 25 25 mW (1) In CMOS mode, the DRVDD current scales with the sampling frequency, the load capacitance on output pins, input frequency, and the supply voltage (see the CMOS Interface Power Dissipation section in the Application Information). Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Link(s): ADS4222 ADS4225 ADS4226 ADS4242 ADS4245 ADS4246 |
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