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ADS5474 Arkusz danych(PDF) 3 Page - Texas Instruments |
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ADS5474 Arkusz danych(HTML) 3 Page - Texas Instruments |
3 / 41 page ADS5474 www.ti.com SLAS525B – JULY 2007 – REVISED FEBRUARY 2012 RECOMMENDED OPERATING CONDITIONS ADS5474 UNIT MIN NOM MAX SUPPLIES AVDD5 Analog supply voltage 4.75 5 5.25 V AVDD3 Analog supply voltage 3.1 3.3 3.6 V DVDD3 Output driver supply voltage 3 3.3 3.6 V ANALOG INPUT Differential input range 2.2 VPP VCM Input common mode 3.1 V DIGITAL OUTPUT (DRY, DATA, OVR) Maximum differential output load 10 pF CLOCK INPUT (CLK) CLK input sample rate (sine wave) 20 400 MSPS Clock amplitude, differential sine wave (see Figure 42) 0.5 5 VPP Clock duty cycle (see Figure 46) 40 50 60 % TA Operating free-air temperature –40 +85 °C ELECTRICAL CHARACTERISTICS Typical values at TA = +25°C: minimum and maximum values over full temperature range TMIN = –40°C to TMAX = +85°C, sampling rate = 400 MSPS, 50% clock duty cycle, AVDD5 = 5 V, AVDD3 = 3.3 V, DVDD3 = 3.3 V, –1 dBFS differential input, and 3-VPP differential clock, unless otherwise noted. ADS5474 PARAMETER TEST CONDITIONS UNIT MIN TYP MAX Resolution 14 Bits ANALOG INPUTS Differential input range 2.2 VPP Analog input common-mode voltage Self-biased; see VCM specification below 3.1 V Input resistance (dc) Each input to VCM 500 Ω Input capacitance Each input to GND 2.3 pF Analog input bandwidth ( –3dB) 1.44 GHz Common-mode signal < 50 MHz CMRR Common-mode rejection ratio 100 dB (see Figure 27) INTERNAL REFERENCE VOLTAGE VREF Reference voltage 2.4 V With internal VREF. Provided as an output via the VCM pin for dc-coupled Analog input common-mode voltage VCM applications. If an external VREF is used, 2.9 3.1 3.3 V reference output the VCM pin tracks as illustrated in Figure 39 VCM temperature coefficient –0.8 mV/ °C DYNAMIC ACCURACY No missing codes Assured DNL Differential linearity error fIN = 70 MHz –0.99 ±0.7 1.5 LSB INL Integral linearity error fIN = 70 MHz –3 ±1 3 LSB Offset error –11 11 mV Offset temperature coefficient 0.02 mV/ °C Gain error –5 5 %FS Gain temperature coefficient –0.02 %FS/ °C Copyright © 2007–2012, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): ADS5474 |
Podobny numer części - ADS5474_14 |
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Podobny opis - ADS5474_14 |
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