数模转换器 集成电路AD9740ARUZ
地区：广东 深圳
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REV. 0
–3–
AD9740
DYNAMIC SPECIFICATIONS
Parameter
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
Maximum Output Update Rate (f
CLOCK
)
165
MSPS
Output Settling Time (t
ST
) (to 0.1%)
1
11
ns
Output Propagation Delay (t
PD
)
1
ns
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)
2
50
pA/
√
Hz
Output Noise (I
OUTFS
= 2 mA)
2
30
pA/
√
Hz
Noise Spectral Density
3
–143
dBm/Hz
AC LINEARITY
Spurious-Free Dynamic Range to Nyquist
f
CLOCK
= 25 MSPS; f
OUT
= 1.00 MHz
0 dBFS Output
71
79
dBc
–6 dBFS Output
75
dBc
–12 dBFS Output
67
dBc
–18 dBFS Output
61
dBc
f
CLOCK
= 65 MSPS; f
OUT
= 1.00 MHz
84
dBc
f
CLOCK
= 65 MSPS; f
OUT
= 2.51 MHz
80
dBc
f
CLOCK
= 65 MSPS; f
OUT
= 10 MHz
78
dBc
f
CLOCK
= 65 MSPS; f
OUT
= 15 MHz
76
dBc
f
CLOCK
= 65 MSPS; f
OUT
= 25 MHz
75
dBc
f
CLOCK
= 165 MSPS; f
OUT
= 21 MHz
70
dBc
f
CLOCK
= 165 MSPS; f
OUT
= 41 MHz
60
dBc
Spurious-Free Dynamic Range within a Window
f
CLOCK
= 25 MSPS; f
OUT
= 1.00 MHz; 2 MHz Span
80
dBc
f
CLOCK
= 50 MSPS; f
OUT
= 5.02 MHz; 2 MHz Span
90
dBc
f
CLOCK
= 65 MSPS; f
OUT
= 5.03 MHz; 2.5 MHz Span
90
dBc
f
CLOCK
= 125 MSPS; f
OUT
= 5.04 MHz; 4 MHz Span
90
dBc
Total Harmonic Distortion
f
CLOCK
= 25 MSPS; f
OUT
= 1.00 MHz
–79
–71
dBc
f
CLOCK
= 50 MSPS; f
OUT
= 2.00 MHz
–77
dBc
f
CLOCK
= 65 MSPS; f
OUT
= 2.00 MHz
–77
dBc
f
CLOCK
= 125 MSPS; f
OUT
= 2.00 MHz
–77
dBc
Signal-to-Noise Ratio
f
CLOCK
= 65 MSPS; f
OUT
= 5 MHz; I
OUTFS
= 20 mA
70
dB
f
CLOCK
= 65 MSPS; f
OUT
= 5 MHz; I
OUTFS
= 5 mA
81
dB
f
CLOCK
= 125 MSPS; f
OUT
= 5 MHz; I
OUTFS
= 20 mA
65
dB
f
CLOCK
= 125 MSPS; f
OUT
= 5 MHz; I
OUTFS
= 5 mA
76
dB
f
CLOCK
= 165 MSPS; f
OUT
= 5 MHz; I
OUTFS
= 20 mA
64
dB
f
CLOCK
= 165 MSPS; f
OUT
= 5 MHz; I
OUTFS
= 5 mA
71
dB
Multitone Power Ratio (8 Tones at 400 kHz Spacing)
f
CLOCK
= 78 MSPS; f
OUT
= 15.0 MHz to 18.2 MHz
0 dBFS Output
65
dBc
–6 dBFS Output
66
dBc
–12 dBFS Output
60
dBc
–18 dBFS Output
55
dBc
NOTES
1
Measured single-ended into 50
Ω
load.
2
Output noise is measured with a full-scale output set to 20 mA with no conversion activity. It is a measure of the thermal noise only.
3
Noise spectral density is the average noise power normalized to a 1 Hz bandwidth, with the DAC converting and producing an output tone.
Specifications subject to change without notice
