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ADS4229 bảng dữ liệu(PDF) 6 Page - Texas Instruments |
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ADS4229 bảng dữ liệu(HTML) 6 Page - Texas Instruments |
6 / 66 page ADS42B49 SBAS558B – DECEMBER 2012 – REVISED JANUARY 2013 www.ti.com ELECTRICAL CHARACTERISTICS: ADS42B49 (250 MSPS) (continued) Typical values are at +25°C, AVDD = 1.9 V, AVDD_BUF = 3.3 V, DRVDD = 1.8 V, 50% clock duty cycle, –1-dBFS differential analog input, LVDS interface, and 0-dB gain, unless otherwise noted. Minimum and maximum values are across the full temperature range: TMIN = –40°C to TMAX = +85°C, AVDD = 1.9 V, AVDD_BUF = 3.3 V, and DRVDD = 1.8 V. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 10-MHz full-scale signal on channel under observation; Crosstalk > 85 dB 170-MHz full-scale signal on other channel Recovery to within 1% Input overload recovery 1 Clock cycle (of full-scale) for 6-dB overload with sine-wave input AC power-supply rejection PSRR For 50-mVPP signal on AVDD supply 30 dB ratio ENOB Effective number of bits fIN = 170 MHz 11.4 LSBs ELECTRICAL CHARACTERISTICS: GENERAL Typical values are at +25°C, AVDD = 1.9 V, AVDD_BUF = 3.3 V, DRVDD = 1.8 V, 50% clock duty cycle, and –1-dBFS differential analog input, unless otherwise noted. Minimum and maximum values are across the full temperature range: TMIN = –40°C to TMAX = +85°C, AVDD = 1.9 V, AVDD_BUF = 3.3 V, and DRVDD = 1.8 V. PARAMETER MIN TYP MAX UNIT ANALOG INPUTS VID Differential input voltage range 2 VPP Differential input resistance (at 170 MHz) 1.2 k Ω Differential input capacitance (at 170 MHz) 2.2 pF Analog input bandwidth 700 MHz (with 50- Ω source impedance, and 50-Ω termination) VCM Common-mode output voltage 1.9(1) V VCM output current capability 10 mA DC ACCURACY Offset error –20 3 20 mV EGREF Gain error as a result of internal reference inaccuracy alone –2 2 %FS EGCHAN Gain error of channel alone –5 %FS Temperature coefficient of EGCHAN 0.005 Δ%/°C POWER SUPPLY IAVDD Analog supply current 186 225 mA IAVDD_BUF Analog buffer supply current 67 90 mA LVDS interface, 350-mV swing with 100- Ω external termination, 151 180 mA fIN = 2.5 MHz IDRVDD Output buffer supply current CMOS interface, 8-pF external load capacitance, 128 mA fIN = 2.5 MHz (2) Analog power 353 mW Analog buffer power 224 mW Digital power, LVDS interface, 350-mV swing with 100- Ω external termination, fIN = 2.5 MHz 272 mW Digital power, CMOS interface, 8-pF external load capacitance,(2) fIN = 2.5 MHz 230 mW Total power, LVDS interface, 350-mV swing with 100- Ω external termination, fIN = 2.5 MHz 850 925 mW Global power-down 20 mW (1) After the HIGH PERF MODE[10:0] bits are set. (2) 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). 6 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated Product Folder Links: ADS42B49 |
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Mô tả tương tự - ADS4229 |
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