Datasheet

AD9225
–3–
Parameter Min Typ Max Unit
SIGNAL-TO-NOISE AND DISTORTION RATIO (S/N+D)
f
INPUT
= 2.5 MHz 67.4 70.7 dB
f
INPUT
= 10 MHz 66.7 69.6 dB
SIGNAL-TO-NOISE RATIO (SNR)
f
INPUT
= 2.5 MHz 69.0 71 dB
f
INPUT
= 10 MHz 68.2 70 dB
TOTAL HARMONIC DISTORTION (THD)
f
INPUT
= 2.5 MHz –82 –72 dB
f
INPUT
= 10 MHz –81 –71.5 dB
SPURIOUS FREE DYNAMIC RANGE
f
INPUT
= 2.5 MHz 73 –85 dB
f
INPUT
= 10 MHz 72.5 –83 dB
Full Power Bandwidth 105 MHz
Small Signal Bandwidth 105 MHz
Aperture Delay 1 ns
Aperture Jitter 1 ps rms
Acquisition to Full-Scale Step 10 ns
Specifications subject to change without notice.
SWITCHING SPECIFICATIONS
(T
MIN
to T
MAX
with AVDD = 5 V, DRVDD = 5 V, C
L
= 20 pF)
Parameter Symbol Min Typ Max Unit
Clock Period* t
C
40 ns
CLOCK Pulse Width High t
CH
18 ns
CLOCK Pulse Width Low t
CL
18 ns
Output Delay t
OD
13 ns
Pipeline Delay (Latency) 3 Clock Cycles
*The clock period may be extended to 1 ms without degradation in specified performance @ 25 ∞C.
Specifications subject to change without notice.
AC SPECIFICATIONS
(AVDD = 5 V, DRVDD = 5 V, f
SAMPLE
= 25 MSPS, VREF = 2.0 V, T
MIN
to T
MAX
, Differential Input unless
otherwise noted.)
DIGITAL SPECIFICATIONS
(AVDD = 5 V, DRVDD = 5 V, unless otherwise noted.)
Parameter Symbol Min Typ Max Unit
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 mA
Low Level Input Current (V
IN
= 0 V) I
IL
–10 +10 mA
Input Capacitance C
IN
5pF
LOGIC OUTPUTS
High Level Output Voltage (I
OH
= 50 mA) 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 mA) V
OL
0.1 V
Output Capacitance C
OUT
5pF
LOGIC OUTPUTS (with DRVDD = 3 V)
High Level Output Voltage (I
OH
= 50 mA) 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 mA) V
OL
0.05 V
Specifications subject to change without notice.
Rev. C