Datasheet

–3–REV. A
AD9224
AC SPECIFICATIONS
Parameter Min Typ Max Units
SIGNAL-TO-NOISE AND DISTORTION RATIO (S/N+D)
f
INPUT
= 2.5 MHz 65 68.3 dB
f
INPUT
= 10 MHz 63.5 68.0 dB
SIGNAL-TO-NOISE RATIO (SNR)
f
INPUT
= 2.5 MHz 65.3 69.1 dB
f
INPUT
= 10 MHz 64.6 68.4 dB
TOTAL HARMONIC DISTORTION (THD)
f
INPUT
= 2.5 MHz –80 –71 dB
f
INPUT
= 10 MHz –78 –67.4 dB
SPURIOUS FREE DYNAMIC RANGE
f
INPUT
= 2.5 MHz 71.1 81 dB
f
INPUT
= 10 MHz 67.9 79 dB
Full Power Bandwidth 120 MHz
Small Signal Bandwidth 120 MHz
Aperture Delay 1ns
Aperture Jitter 4 ps rms
Specifications subject to change without notice.
DIGITAL SPECIFICATIONS
Parameters Symbol Min Typ Max Units
LOGIC INPUTS
High Level Input Voltage V
IH
+3.5 V
Low Level Input Voltage V
IL
+1.0 V
High Level Input Current (V
IN
= DRVDD) I
IH
–10 +10 µA
Low Level Input Current (V
IN
= 0 V) I
IL
–10 +10 µA
Input Capacitance C
IN
5pF
LOGIC OUTPUTS (With DRVDD = 5 V)
High Level Output Voltage (I
OH
= 50 µA) V
OH
+4.5 V
High Level Output Voltage (I
OH
= 0.5 mA) V
OH
+2.4 V
Low Level Output Voltage (I
OL
= 1.6 mA) V
OL
+0.4 V
Low Level Output Voltage (I
OL
= 50 µA) V
OL
+0.1 V
Output Capacitance C
OUT
5pF
LOGIC OUTPUTS (With DRVDD = 3 V)
High Level Output Voltage (I
OH
= 50 µA) V
OH
+2.95 V
High Level Output Voltage (I
OH
= 0.5 mA) V
OH
+2.80 V
Low Level Output Voltage (I
OL
= 1.6 mA) V
OL
+0.4 V
Low Level Output Voltage (I
OL
= 50 µA) V
OL
+0.05 V
Specifications subject to change without notice.
SWITCHING SPECIFICATIONS
Parameters Symbol Min Typ Max Units
Clock Period
1
t
C
25 ns
CLOCK Pulsewidth High
2
t
CH
12.37 ns
CLOCK Pulsewidth Low t
CL
12.37 ns
Output Delay t
OD
13 ns
Pipeline Delay (Latency) 3 Clock Cycles
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.
(AVDD = +5 V, DRVDD = +3 V, f
SAMPLE
= 40 MSPS, VREF = 2.0 V, T
MIN
to T
MAX
, Differential Input unless otherwise noted)
(AVDD = +5 V, DRVDD = +5 V, unless otherwise noted)
(T
MIN
to T
MAX
with AVDD = + 5 V, DRVDD = +5 V, C
L
= 20 pF)