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AD9218BST-105 Datasheet(PDF) 3 Page - Analog Devices |
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AD9218BST-105 Datasheet(HTML) 3 Page - Analog Devices |
3 / 24 page REV. 0 –3– AD9218 DIGITAL SPECIFICATIONS Test AD9218BST-40/-65 AD9218BST-80/-105 Parameter Temp Level Min Typ Max Min Typ Max Unit DIGITAL INPUTS Encode Input Common Mode Full V VD/2 VD/2 V Encode “1” Voltage Full VI 2 2 V Encode “0” Voltage Full VI 0.8 0.8 V Encode Input Resistance Full VI 1.8 2.0 2.3 1.8 2.0 2.3 k Ω Logic “1” Voltage—S1, S2, DFS Full VI 2 2 V Logic “0” Voltage—S1, S2, DFS Full VI 0.8 0.8 V Logic “1” Current—S1 Full VI –50 ±10 +50 –50 ±10 +50 µA Logic “0” Current—S1 Full VI –400 –230 –50 –400 –230 –50 µA Logic “1” Current—S2 Full VI 50 230 400 50 230 400 µA Logic “0” Current—S2 Full VI –50 ±10 +50 –50 ±10 +50 µA Logic “1” Current—DFS Full VI 30 100 200 30 100 200 µA Logic “0” Current—DFS Full VI –400 –230 –50 –400 –230 –50 µA Input Capacitance—S1, S2, Encode Inputs 25 °CV 2 2 pF Input Capacitance DFS 25 °C V 4.5 4.5 pF DIGITAL OUTPUTS Logic “1” Voltage Full VI 2.45 2.45 V Logic “0” Voltage Full VI 0.05 0.05 V Output Coding Two’s Comp. or Offset Binary Two’s Comp. or Offset Binary Specifications subject to change without notice. AC SPECIFICATIONS Test AD9218BST-40/-65 AD9218BST-80/-105 Parameter Temp Level Min Typ Max Min Typ Max Unit DYNAMIC PERFORMANCE 1 Signal-to-Noise Ratio (SNR) (Without Harmonics) fIN = 10.3 MHz 25 °C I 58/55 59/57 57/53 58/55 dB fIN = Nyquist 2 25 °C I -/54 59/56 55/52 57/54 dB Signal-to-Noise Ratio (SINAD) (With Harmonics) fIN = 10.3 MHz 25 °C I 58/54 59/56 56/52 58/53 dB fIN = Nyquist 2 25 °C I -/53 59/55 55/51 57/53 dB Effective Number of Bits fIN = 10.3 MHz 25 °C I 9.4/8.8 9.6/9.1 9.1/8.4 9.4/8.6 Bits fIN = Nyquist 2 25 °C I -/8.6 9.6/8.9 9/8.3 9.3/8.6 Bits Second Harmonic Distortion fIN = 10.3 MHz 25 °C I –72/–66 –89/–77 –69/–60 –77/–68 dBc fIN = Nyquist 2 25 °C I -/–63 –89/–72 –65/–57 –76/–66 dBc Third Harmonic Distortion fIN = 10.3 MHz 25 °C I –68/–62 –79/–68 –62/–57 –71/–63 dBc fIN = Nyquist 2 25 °C I -/–60 –78/–64 –63/–57 –73/–69 dBc Spurious Free Dynamic Range SFDR fIN = 10.3 MHz 25 °C I –68/–62 –79/–67 –62/–57 –69/–62 dBc fIN = Nyquist 2 25 °C I -/–60 –78/–64 –63/–57 –70/–63 dBc Two-Tone Intermod Distortion (IMD) fIN1 = 10 MHz, fIN2 = 11 MHz 25 °C V –74/–73 dBc at –7 dBFS fIN1 = 30 MHz, fIN2 = 31 MHz 25 °C V –73/–73 –77/–67 dBc at –7 dBFS Analog Bandwidth, Full Power 25 °C V 300 300 MHz Crosstalk 25 °C V –75 –75 dBc NOTES 1AC specs based on an analog input voltage of –0.5 dBFS at 10.3 MHz unless otherwise noted. AC specs for -40, -80, -105 grades are tested in 1 V p-p range and driven differentially. AC specs for -65 grade are tested in 2 V p-p range and driven differentially. 2The -65, -80, and -105 grades are tested close to Nyquist for that grade: 31 MHz, 39 MHz, and 51 MHz for the -65, -80, and -105 grades respectively. Specifications subject to change without notice. (VDD = 3.0 V, VD = 3.0 V; external reference, unless otherwise noted.) (VDD = 3.0 V, VD = 3.0 V; external reference, unless otherwise noted.) |
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