Datasheet
REV. E
AD9221/AD9223/AD9220
–3–
AC SPECIFICATIONS
(AVDD = 5 V, DVDD= 5 V, f
SAMPLE
= Max Conversion Rate, V
REF
= 1.0 V, VINB = 2.5 V, DC Coupled/Single-
Ended Input T
MIN
to T
MAX
, unless otherwise noted.)
Parameter AD9221 AD9223 AD9220 Unit
MAX CONVERSION RATE 1.5 3.0 10.0 MHz min
DYNAMIC PERFORMANCE
Input Test Frequency 1 (VINA = –0.5 dBFS) 100 500 1000 kHz
Signal-to-Noise and Distortion (SINAD) 70.0 70.0 70 dB typ
69.0 68.5 68.5 dB min
Effective Number of Bits (ENOBs) 11.3 11.3 11.3 dB typ
11.2 11.1 11.1 dB min
Signal-to-Noise Ratio (SNR) 70.2 70.0 70.2 dB typ
69.0 68.5 69.0 dB min
Total Harmonic Distortion (THD) –83.4 –83.4 –83.7 dB typ
–77.5 –76.0 –76.0 dB max
Spurious Free Dynamic Range (SFDR) 86.0 87.5 88.0 dB typ
79.0 77.5 77.5 dB max
Input Test Frequency 2 (VINA = –0.5 dBFS) 0.50 1.50 5.0 MHz
Signal-to-Noise and Distortion (SINAD) 69.9 69.4 67.0 dB typ
69.0 68.0 65.0 dB min
Effective Number of Bits (ENOBs) 11.3 11.2 10.8 dB typ
11.2 11.1 10.5 dB min
Signal-to-Noise Ratio (SNR) 70.1 69.7 68.8 dB typ
69.0 68.5 67.5 dB min
Total Harmonic Distortion (THD) –83.4 –82.9 –72.0 dB typ
–77.5 –75.0 –68.0 dB max
Spurious Free Dynamic Range (SFDR) 86.0 85.7 75.0 dB typ
79.0 76.0 69.0 dB max
Full Power Bandwidth 25 40 60 MHz typ
Small Signal Bandwidth 25 40 60 MHz typ
Aperture Delay 111ns typ
Aperture Jitter 444ps rms typ
Acquisition to Full-Scale Step 125 43 30 ns typ
Specifications subject to change without notice.
DIGITAL SPECIFICATIONS
(AVDD = 5 V, DVDD = 5 V, T
MIN
to T
MAX
, unless otherwise noted.)
Parameter Symbol Unit
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
DVDD = 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
DVDD = 3 V
High Level Output Voltage (I
OH
= 50 µA) V
OH
2.95 V min
High Level Output Voltage (I
OH
= 0.5 mA) V
OH
2.80 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
0.05 V max
Output Capacitance C
OUT
5 pF typ
Specifications subject to change without notice.