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ADS901 Datasheet(PDF) 3 Page - Texas Instruments |
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ADS901 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 14 page ADS901 3 SBAS054A ADS901E PARAMETER CONDITIONS TEMP MIN TYP MAX UNITS ELECTRICAL CHARACTERISTICS (Cont.) At TA = +25°C, VS = LVDD = +3V, REFB = 1V, REFT = 2V, Specified Input Range = 1V to 2V, Sampling Rate = 20MHz, unless otherwise specified. DYNAMIC CHARACTERISTICS Differential Linearity Error (Largest Code Error) f = 500kHz Full ±0.8 LSB f = 9MHz Full ±0.9 ±1.0 LSB No Missing Codes Full Guaranteed Integral Nonlinearity Error, f = 500kHz Full ±3.5 LSB Spurious Free Dynamic Range(2) f = 500kHz (–1dBFS(3) input) Full 50 dBFS(3) f = 9MHz (–1dBFS input) Full 45 49 dBFS Signal-to-Noise Ratio (SNR) Referred to Sinewave Input Signal f = 500kHz (–1dBFS input) Full 53 dB f = 9MHz (–1dBFS input) Full 48 53 dB Maximum SNR Referred to DC Full Scale Input Signal f = 9MHz (–1dBFS input) 62 dB Signal-to-(Noise + Distortion) (SINAD) f = 500kHz (–1dBFS input) Full 50 dB f = 3.58MHz (–1dBFS input) Full 50 dB f = 9MHz (–1dBFS input) Full 45 49 dB Effective Number of Bits(4) fIN = 3.58MHz 8.0 Bits Differential Gain Error NTSC, PAL 2.3 % Differential Phase Error NTSC, PAL 1.0 degrees Output Noise Input Grounded 0.2 LSB rms Aperture Delay Time 3ns Aperture Jitter 7 ps rms Analog Input Bandwidth Small Signal –20dBFS Input 350 MHz Full Power 0dBFS Input 100 MHz Overvoltage Recovery Time(5) 2ns DIGITAL OUTPUTS CL = 15pF Logic Family CMOS Compatible Logic Coding Straight Offset Binary High Output Voltage, VOH +2.4 LVDD V Low Output Voltage, VOL +0.4 V 3-State Enable Time OE = L 20 40 ns 3-State Disable Time OE = H 18 10 ns Internal Pull-Down to Gnd 50 k Ω Power-Down Enable Time Pwrdn = L 133 ns Power-Down Disable Time Pwrdn = H 18 ns Internal Pull-Down to Gnd 50 k Ω ACCURACY fS = 2.5MHz Gain Error Full 2.5 %FS Input Offset(6) Full 0.4 %FS Power Supply Rejection (Gain) ∆ V S = +10% Full 56 dB Power Supply Rejection (Offset) Full 68 dB External REFT Voltage Range Full REFB +0.5 2 VS–0.8 V External REFB Voltage Range Full 0.8 1 REFT –0.5 V Reference Input Resistance 4k Ω POWER SUPPLY REQUIREMENTS Supply Voltage: +VS Operating Full +2.7 +3.0 +3.7 V Supply Current: +IS Operating Full 16 mA Power Dissipation Operating Full 49 60 mW Power Dissipation (Power Down) Operating Full 15 mW Thermal Resistance, θ JA 28-Lead SSOP 89 °C/W NOTES: (1) The single-ended input range is set by REFB and REFT values. (2) Spurious Free Dynamic Range refers to the magnitude of the largest harmonic. (3) dBFS is dB relative to full scale. (4) Based on (SINAD - 1.76)/6.02. (5) No “Rollover” of bits. (6) Offset Deviation from Ideal Negative Full Scale. |
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