AD9272-80 데이터 시트보기 (PDF) - Analog Devices
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AD9272-80 Datasheet PDF : 44 Pages
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AD9272
SPECIFICATIONS
AC SPECIFICATIONS
AVDD1 = 1.8 V, AVDD2 = 3.0 V, DRVDD = 1.8 V, 1.0 V internal ADC reference, fIN = 5 MHz, RS = 50 Ω, LNA gain = 21.3 dB, LNA bias = high,
PGA gain = 27 dB, GAIN− = 0.8 V, AAF LPF cutoff = fSAMPLE/4.5, HPF = LPF cutoff/20.7 (default), full temperature, ANSI-644 LVDS mode,
unless otherwise noted.
Table 1.
Parameter 1
Conditions
AD9272-40
AD9272-65
AD9272-80
Min Typ
Max Min Typ
Max Min Typ
Max Unit
LNA CHARACTERISTICS
Gain
Single-ended
15.6/17.9/21.3
input to
differential output
15.6/17.9/21.3
15.6/17.9/21.3
dB
Single-ended
input to
single-ended
output
9.6/11.9/15.3
9.6/11.9/15.3
9.6/11.9/15.3
dB
Input Voltage Range
LNA gain =
15.6 dB/
17.9 dB/
21.3 dB,
LNA output
limited to
4.4 V p-p
differential output
733/550/367
733/550/367
733/550/367
mV p-p
SE 2
Input Common
Mode
0.9
0.9
0.9
V
Input Resistance
RFB = 250 Ω
50
50
50
Ω
RFB = 500 Ω
100
100
100
Ω
RFB = ∞
15
15
15
kΩ
Input Capacitance LI-x
22
22
22
pF
−3 dB Bandwidth
100
100
100
MHz
Input-Referred
Noise Voltage
Input Noise Current
1 dB Input Com-
pression Point
LNA gain =
15.6 dB/
17.9 dB/
21.3 dB,
RS = 0 Ω,
RFB = ∞
RFB = ∞
LNA gain =
15.6 dB/
17.9 dB/
21.3 dB,
GAIN+ = 0 V
0.98/0.86/0.75
1
1.0/0.8/0.5
0.98/0.86/0.75
1
1.0/0.8/0.5
0.98/0.86/0.75
nV/√Hz
1
1.0/0.8/0.5
pA/√Hz
mV p-p
Noise Figure
LNA gain =
15.6 dB/
17.9 dB/
21.3 dB
Active Termination
Matched
RS = 50 Ω,
RFB = 200 Ω/
250 Ω/350 Ω
4.8/4.1/3.2
4.8/4.1/3.2
4.8/4.0/3.2
dB
Unterminated RFB = ∞
3.4/2.8/2.3
3.4/2.8/2.3
3.4/2.8/2.3
dB
FULL-CHANNEL (TGC)
CHARACTERISTICS
AAF Low-Pass Filter −3 dB,
Cutoff -In Range programmable
8 to 18
8 to 18
8 to 18
MHz
AAF Low-Pass Filter
Cutoff - Out of
Range3
−3 dB,
programmable,
AAF Bandwidth
Tolerance
5 to 8 and
18 to 35
5 to 8 and
18 to 35
5 to 8 and
MHz
18 to 35
AAF Bandwidth
Tolerance -In
Range
±10
±10
±10
%
Rev. C | Page 4 of 44
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