Datasheet

AC SPECIFICATIONS
Parameter AD9240 Units
SIGNAL-TO-NOISE AND DISTORTION RATIO (S/N+D)
f
INPUT
= 500 kHz 75.0 dB min
77.5 dB typ
f
INPUT
= 1.0 MHz 77.5 dB typ
f
INPUT
= 5.0 MHz 75.0 dB typ
EFFECTIVE NUMBER OF BITS (ENOB)
f
INPUT
= 500 kHz 12.2 Bits min
12.6 Bits typ
f
INPUT
= 1.0 MHz 12.6 Bits typ
f
INPUT
= 5.0 MHz 12.2 Bits typ
SIGNAL-TO-NOISE RATIO (SNR)
f
INPUT
= 500 kHz 76.0 dB min
78.5 dB typ
f
INPUT
= 1.0 MHz 78.5 dB typ
f
INPUT
= 5.0 MHz 78.5 dB typ
TOTAL HARMONIC DISTORTION (THD)
f
INPUT
= 500 kHz –78.0 dB max
–85.0 dB typ
f
INPUT
= 1.0 MHz –85.0 dB typ
f
INPUT
= 5.0 MHz –77.0 dB typ
SPURIOUS FREE DYNAMIC RANGE
f
INPUT
= 500 kHz 90.0 dB typ
f
INPUT
= 1.0 MHz 90.0 dB typ
f
INPUT
= 5.0 MHz 80.0 dB typ
DYNAMIC PERFORMANCE
Full Power Bandwidth 70 MHz typ
Small Signal Bandwidth 70 MHz typ
Aperture Delay 1 ns typ
Aperture Jitter 4 ps rms typ
Acquisition to Full-Scale Step (0.0025%) 45 ns typ
Overvoltage Recovery Time 167 ns typ
Specifications subject to change without notice.
DIGITAL SPECIFICATIONS
Parameters Symbol AD9240 Units
CLOCK INPUT
High Level Input Voltage V
IH
+3.5 V min
Low Level Input Voltage V
IL
+1.0 V max
High Level Input Current (V
IN
= DVDD) I
IH
±10 µA max
Low Level Input Current (V
IN
= 0 V) I
IL
±10 µA max
Input Capacitance C
IN
5 pF typ
LOGIC OUTPUTS (with DRVDD = 5 V)
High Level Output Voltage (I
OH
= 50 µA) V
OH
+4.5 V min
High Level Output Voltage (I
OH
= 0.5 mA) V
OH
+2.4 V min
Low Level Output Voltage (I
OL
= 1.6 mA) V
OL
+0.4 V max
Low Level Output Voltage (I
OL
= 50 µA) V
OL
+0.1 V max
Output Capacitance C
OUT
5 pF typ
LOGIC OUTPUTS (with DRVDD = 3 V)
High Level Output Voltage (I
OH
= 50 µA) V
OH
+2.4 V min
Low Level Output Voltage (I
OL
= 50 µA) V
OL
+0.7 V max
Specifications subject to change without notice.
AD9240
REV.
–3–
(AVDD = +5 V, DVDD= +5 V, DRVDD = +5 V, f
SAMPLE
= 10 MSPS, R
BIAS
= 2 k⍀, VREF = 2.5 V, A
IN
= –0.5 dBFS,
AC Coupled/Differential Input, T
MIN
to T
MAX
unless otherwise noted)
(AVDD = +5 V, DVDD = +5 V, T
MIN
to T
MAX
unless otherwise noted)
B