AD9224 AC SPECIFICATIONS (AVDD = +5 V, DRVDD = +3 V, f SAMPLE = 40 MSPS, VREF = 2.0 V, TMIN to TMAX, Differential Input unless otherwise noted) Parameter SIGNAL-TO-NOISE AND DISTORTION RATIO (S/N+D) fINPUT = 2.5 MHz fINPUT = 10 MHz SIGNAL-TO-NOISE RATIO (SNR) fINPUT = 2.5 MHz fINPUT = 10 MHz Min Typ 65 63.5 68.3 68.0 dB dB 65.3 64.6 69.1 68.4 dB dB TOTAL HARMONIC DISTORTION (THD) fINPUT = 2.5 MHz fINPUT = 10 MHz Max –80 –78 SPURIOUS FREE DYNAMIC RANGE fINPUT = 2.5 MHz fINPUT = 10 MHz Full Power Bandwidth Small Signal Bandwidth Aperture Delay Aperture Jitter 71.1 67.9 –71 –67.4 81 79 120 120 1 4 Units dB dB dB dB MHz MHz ns ps rms Specifications subject to change without notice. DIGITAL SPECIFICATIONS (AVDD = +5 V, DRVDD = +5 V, unless otherwise noted) Parameters LOGIC INPUTS High Level Input Voltage Low Level Input Voltage High Level Input Current (VIN = DRVDD) Low Level Input Current (VIN = 0 V) Input Capacitance LOGIC OUTPUTS (With DRVDD = 5 V) High Level Output Voltage (IOH = 50 µA) High Level Output Voltage (IOH = 0.5 mA) Low Level Output Voltage (IOL = 1.6 mA) Low Level Output Voltage (IOL = 50 µA) Output Capacitance LOGIC OUTPUTS (With DRVDD = 3 V) High Level Output Voltage (IOH = 50 µA) High Level Output Voltage (IOH = 0.5 mA) Low Level Output Voltage (IOL = 1.6 mA) Low Level Output Voltage (IOL = 50 µA) Symbol Min VIH VIL IIH IIL CIN +3.5 VOH VOH VOL VOL COUT +4.5 +2.4 VOH VOH VOL VOL +2.95 +2.80 Typ Max Units +1.0 +10 +10 5 V V µA µA pF 5 V V V V pF –10 –10 +0.4 +0.1 +0.4 +0.05 V V V V Specifications subject to change without notice. SWITCHING SPECIFICATIONS (T MIN to TMAX with AVDD = + 5 V, DRVDD = +5 V, CL = 20 pF) Parameters Symbol Min Clock Period1 CLOCK Pulsewidth High2 CLOCK Pulsewidth Low Output Delay Pipeline Delay (Latency) tC tCH tCL tOD 25 12.37 12.37 13 3 NOTES 1 The clock period may be extended to 1 ms without degradation in specified performance @ +25 °C. 2 For operation at 40 MHz, the clock must be held to 50% duty cycle. See section on clock shaping in text. Specifications subject to change without notice. REV. A Typ –3– Max Units ns ns ns ns Clock Cycles