AD6645(Rev0) Ver la hoja de datos (PDF) - Analog Devices
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AD6645 Datasheet PDF : 20 Pages
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AD6645
AC SPECIFICATIONS1 (AVCC = 5 V, DVCC = 3.3 V; ENCODE and ENCODE = 80 MSPS; TMIN = –40؇C, TMAX = +85؇C, unless
otherwise noted.)
Parameter (Conditions)
Temp Test Level Min
AD6645ASQ-80
Typ
Max Unit
SNR
Analog Input
15.5 MHz
25∞C V
75.0
@ –1 dBFS
30.5 MHz
25∞C II
72.5
74.5
70.0 MHz
25∞C II
72.0
73.5
150.0 MHz
25∞C V
73.0
200.0 MHz
25∞C V
72.0
SINAD
Analog Input
15.5 MHz
25∞C V
75.0
@ –1 dBFS
30.5 MHz
25∞C II
72.5
74.5
70.0 MHz
25∞C V
73.0
150.0 MHz
25∞C V
68.5
200.0 MHz
25∞C V
62.5
WORST HARMONIC (2nd or 3rd)
Analog Input
15.5 MHz
25∞C V
93.0
@ –1 dBFS
30.5 MHz
25∞C II
85.0
93.0
70.0 MHz
25∞C V
89.0
150.0 MHz
25∞C V
70.0
200.0 MHz
25∞C V
63.5
WORST HARMONIC (4th or HIGHER)
Analog Input
15.5 MHz
25∞C V
96.0
@ –1 dBFS
30.5 MHz
25∞C II
85.0
95.0
70.0 MHz
25∞C V
90.0
150.0 MHz
25∞C V
90.0
200.0 MHz
25∞C V
88.0
TWO TONE SFDR @ 30.5 MHz2, 3
25∞C V
100
55.0 MHz2, 4
25∞C V
100
TWO TONE IMD REJECTION3, 4
F1, F2 @ –7 dBFS
25∞C V
90
ANALOG INPUT BANDWIDTH
25∞C V
270
NOTES
1All ac specifications tested by driving ENCODE and ENCODE differentially.
2Analog input signal power swept from –10 dBFS to –100 dBFS.
3F1 = 30.5 MHz, F2 = 31.5 MHz.
4F1 = 55.25 MHz, F2 = 56.25 MHz.
Specifications subject to change without notice.
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBFS
dBFS
dBc
MHz
SWITCHING SPECIFICATIONS (AVCC = 5 V, DVCC = 3.3 V; ENCODE and ENCODE = 80 MSPS; TMIN = –40؇C, TMAX = +85؇C, unless
otherwise noted.)
Parameter (Conditions)
Temp
Maximum Conversion Rate
Full
Minimum Conversion Rate
Full
ENCODE Pulsewidth High (tENCH)*
Full
ENCODE Pulsewidth Low (tENCL)*
Full
*Several timing parameters are a function of tENCL and tENCH.
Specifications subject to change without notice.
Test Level Min
II
80
IV
IV
5.625
IV
5.625
AD6645ASQ-80
Typ
Max Unit
MSPS
30
MSPS
ns
ns
REV. 0
–3–
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