AD9276 查看數據表（PDF） - Analog Devices
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AD9276 Datasheet PDF : 48 Pages
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AD9276
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/3 (Mode I/Mode II), fSAMPLE/4.5 (Mode III), HPF cutoff = LPF cutoff/20.7 (default),
Mode I = fSAMPLE = 40 MSPS, Mode II = fSAMPLE = 65 MSPS, Mode III = fSAMPLE = 80 MSPS, full temperature, ANSI-644 LVDS mode, unless
otherwise noted.
Table 1.
Parameter1
Test Conditions/Comments
Min
LNA CHARACTERISTICS
Gain
Single-ended input to differential output
Single-ended input to single-ended output
Input Voltage Range
(Single-Ended)
LNA output limited to 4.4 V p-p differential
output
LNA gain = 15.6 dB
LNA gain = 17.9 dB
LNA gain = 21.3 dB
Input Common Mode (LI-x, LG-x)
Output Common Mode (LO-x)
Output Common Mode (LOSW-x) Switch off
Switch on
Input Resistance (LI-x)
RFB = 250 Ω
RFB = 500 Ω
RFB = ∞
Input Capacitance (LI-x)
−3 dB Bandwidth
Input Noise Voltage
RS = 0 Ω, RFB = ∞
LNA gain = 15.6 dB
LNA gain = 17.9 dB
LNA gain = 21.3 dB
Input Noise Current
RFB = ∞
1 dB Input Compression Point
GAIN+ = 0 V
LNA gain = 15.6 dB
LNA gain = 17.9 dB
LNA gain = 21.3 dB
Noise Figure
RS = 50 Ω
Active Termination Matched
LNA gain = 15.6 dB, RFB = 200 Ω
LNA gain = 17.9 dB, RFB = 250 Ω
LNA gain = 21.3 dB, RFB = 350 Ω
Unterminated
LNA gain = 15.6 dB, RFB = ∞
LNA gain = 17.9 dB, RFB = ∞
LNA gain = 21.3 dB, RFB = ∞
FULL-CHANNEL (TGC)
CHARACTERISTICS
AAF Low-Pass Cutoff
In Range
−3 dB, programmable
8
In Range AAF Bandwidth
Tolerance
Group Delay Variation
f = 1 MHz to 18 MHz, GAIN+ = 0 V to 1.6 V
Input-Referred Noise Voltage
GAIN+ = 1.6 V, RFB = ∞
LNA gain = 15.6 dB
LNA gain = 17.9 dB
LNA gain = 21.3 dB
Typ
Max
15.6/17.9/21.3
9.6/11.9/15.3
733
550
367
1.0
1.5
High-Z
1.5
50
100
15
22
100
0.98
0.86
0.75
1
1.0
0.8
0.5
4.8
4.1
3.2
3.4
2.8
2.3
18
±10
±0.5
1.26
1.04
0.85
Unit
dB
dB
mV p-p
mV p-p
mV p-p
V
V
Ω
V
Ω
Ω
kΩ
pF
MHz
nV/√Hz
nV/√Hz
nV/√Hz
pA/√Hz
V p-p
V p-p
V p-p
dB
dB
dB
dB
dB
dB
MHz
%
ns
nV/√Hz
nV/√Hz
nV/√Hz
Rev. 0 | Page 4 of 48
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