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EVAL-AD7920CB Datasheet(PDF) 4 Page - Analog Devices |
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EVAL-AD7920CB Datasheet(HTML) 4 Page - Analog Devices |
4 / 24 page AD7910/AD7920 Rev. C | Page 4 of 24 Parameter1 A Grade1, 2 Unit Test Conditions/Comments Power Dissipation6 Normal Mode (Operational) 15 mW max VDD = 5 V, fSAMPLE = 250 kSPS 4.2 mW max VDD = 3 V, fSAMPLE = 250 kSPS Full Power-Down 5 μW max VDD = 5 V 3 μW max VDD = 3 V 1 Temperature range from −40°C to +85°C. 2 Operational from VDD = 2.0 V, with input high voltage (VINH) 1.8 V min. 3 See the Terminology section. 4 SC70 values guaranteed by characterization. 5 Guaranteed by characterization. 6 See the Power vs. Throughput Rate section. AD7920 VDD = 2.35 V to 5.25 V, fSCLK = 5 MHz, fSAMPLE = 250 kSPS, TA = TMIN to TMAX, unless otherwise noted. Table 2. Parameter1 A Grade , 1 2 B Grade1, 2 Unit Test Conditions/Comments DYNAMIC PERFORMANCE fIN = 100 kHz sine wave Signal-to-Noise + Distortion (SINAD)3 70 70 dB min VDD = 2.35 V to 3.6 V, TA = 25°C 69 69 dB min VDD = 2.4 V to 3.6 V 71.5 71.5 dB typ VDD = 2.35 V to 3.6 V 69 69 dB min VDD = 4.75 V to 5.25 V, TA = 25°C 68 68 dB min VDD = 4.75 V to 5.25 V Signal-to-Noise Ratio (SNR)3 71 71 dB min VDD = 2.35 V to 3.6 V, TA = 25°C 70 70 dB min VDD = 2.4 V to 3.6 V 70 70 dB min VDD = 4.75 V to 5.25 V, TA = 25°C 69 69 dB min VDD = 4.75 V to 5.25 V Total Harmonic Distortion (THD)3 −80 −80 dB typ Peak Harmonic or Spurious Noise (SFDR)3 −82 −82 dB typ Intermodulation Distortion (IMD)3 Second-Order Terms −84 −84 dB typ fa = 100.73 kHz, fb = 90.72 kHz Third-Order Terms −84 −84 dB typ fa = 100.73 kHz, fb = 90.72 kHz Aperture Delay 10 10 ns typ Aperture Jitter 30 30 ps typ Full Power Bandwidth 13.5 13.5 MHz typ @ 3 dB 2 2 MHz typ @ 0.1 dB DC ACCURACY B Grade4 Resolution 12 12 Bits Integral Nonlinearity3 ±1.5 LSB max ± 0.75 LSB typ Differential Nonlinearity −0.9/+1.5 LSB max Guaranteed no missed codes to 12 bits ±0.75 LSB typ Offset Error3, 5 ±1.5 LSB max ±1.5 ±0.2 LSB typ Gain Error3, 5 ±1.5 LSB max ±1.5 ±0.5 LSB typ Total Unadjusted Error (TUE)3, 5 ±2 LSB max ANALOG INPUT Input Voltage Ranges 0 to VDD 0 to VDD V DC Leakage Current ±0.5 ±0.5 μA max Input Capacitance 20 20 pF typ Track-and-hold in track, 6 pF typ when in hold |
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