Datasheet

–3–
REV. 0
AD9750
DYNAMIC SPECIFICATIONS
Parameter Min Typ Max Units
DYNAMIC PERFORMANCE
Maximum Output Update Rate (f
CLOCK
) 125 MSPS
Output Settling Time (t
ST
) (to 0.1%)
1
35 ns
Output Propagation Delay (t
PD
)1ns
Glitch Impulse 5 pV-s
Output Rise Time (10% to 90%)
1
2.5 ns
Output Fall Time (10% to 90%)
1
2.5 ns
Output Noise (I
OUTFS
= 20 mA) 50 pA/√Hz
Output Noise (I
OUTFS
= 2 mA) 30 pA/√Hz
AC LINEARITY
Spurious-Free Dynamic Range to Nyquist
f
CLOCK
= 50 MSPS; f
OUT
= 1.00 MHz
0 dBFS Output
T
A
= +25°C 71 82 dBc
f
CLOCK
= 50 MSPS; f
OUT
= 2.51 MHz 79 dBc
f
CLOCK
= 50 MSPS; f
OUT
= 5.02 MHz 76 dBc
f
CLOCK
= 50 MSPS; f
OUT
= 20.2 MHz 60 dBc
f
CLOCK
= 100 MSPS; f
OUT
= 2.51 MHz 78 dBc
f
CLOCK
= 100 MSPS; f
OUT
= 5.04 MHz 77 dBc
f
CLOCK
= 100 MSPS; f
OUT
= 20.2 MHz 69 dBc
f
CLOCK
= 100 MSPS; f
OUT
= 40.4 MHz 63 dBc
Spurious-Free Dynamic Range within a Window
f
CLOCK
= 50 MSPS; f
OUT
= 1.00 MHz 80 87 dBc
f
CLOCK
= 50 MSPS; f
OUT
= 5.02 MHz; 2 MHz Span 86 dBc
f
CLOCK
= 100 MSPS; f
OUT
= 5.04 MHz; 4 MHz Span 86 dBc
Total Harmonic Distortion
f
CLOCK
= 50 MSPS; f
OUT
= 1.00 MHz
T
A
= +25°C –80 dBc
f
CLOCK
= 50 MHz; f
OUT
= 2.00 MHz –76 dBc
f
CLOCK
= 100 MHz; f
OUT
= 2.00 MHz –76 dBc
NOTES
1
Measured single ended into 50 Ω load.
Specifications subject to change without notice.
(T
MIN
to T
MAX
, AVDD = +5 V, DVDD = +5 V, I
OUTFS
= 20 mA, Differential Transformer Coupled Output,
50 ⍀ Doubly Terminated, unless otherwise noted)