Specifications; Ac Specifications; Changes To Full-Channel (Tgc) Characteristics Parameter, Table 1 - Analog Devices AD9273 Manual

AD9273

SPECIFICATIONS

AC SPECIFICATIONS

AVDD1 = 1.8 V, AVDD2 = 3.0 V, DRVDD = 1.8 V, 1.0 V internal ADC reference, f
high (default), PGA gain = 24 dB, GAIN− = 0.8 V, AAF LPF cutoff = f
ANSI-644 LVDS mode, unless otherwise noted.
Table 1.
1
Parameter Conditions
LNA CHARACTERISTICS
Gain Single-ended
input to
differential
output
Single-ended
input to
single-ended
output
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
Input Common
Mode
Input Resistance R = 250 Ω
FB
R = 500 Ω
FB
R = ∞
FB
Input Capacitance LI-x
−3 dB Bandwidth
Input-Referred LNA gain =
Noise Voltage 15.6 dB/
17.9 dB/
21.3 dB,
R = 0 Ω,
S
R = ∞
FB
Input Noise Current R = ∞
FB
1 dB Input Com- LNA gain =
pression Point 15.6 dB/
17.9 dB/
21.3 dB,
GAIN+ = 0 V
Noise Figure LNA gain =
15.6 dB/
17.9 dB/
21.3 dB
Active Termina- R = 50 Ω,
S
tion Matched R = 200 Ω/
FB
250 Ω/350 Ω
Unterminated R = ∞
FB
FULL-CHANNEL (TGC)
CHARACTERISTICS
AAF Low-Pass Filter In range, −3 dB,
Cutoff programmable
Out of range,
−3 dB, pro-
grammable,
>>AAF band-
width tolerance
AD9273-25
Min Typ
15.6/17.9/21.3
9.6/11.9/15.3
733/550/367
0.9
50
100
15
22
70
1.6/1.42/1.26
1
1.0/0.8/0.5
5.8/5.1/4.3
6.3/5.3/4.4
8 to 18
3
5 to 8, 18 to 35
Rev. B | Page 4 of 48
= 5 MHz, R
IN
/3 (default), HPF = LPF cutoff/20.7 (default), full temperature,
SAMPLE
AD9273-40
Max Min Typ
15.6/17.9/21.3
9.6/11.9/15.3
733/550/367
0.9
50
100
15
22
70
1.6/1.42/1.26
1
1.0/0.8/0.5
5.8/5.1/4.3
6.3/5.3/4.4
8 to 18
5 to 8, 18 to 35
= 50 Ω, LNA gain = 21.3 dB, LNA bias =mid-
S
AD9273-50
Max Min Typ
15.6/17.9/21.3
9.6/11.9/15.3
733/550/367
0.9
50
100
15
22
70
1.6/1.42/1.26
1
1.0/0.8/0.5
5.8/5.1/4.3
6.3/5.3/4.4
8 to 18
5 to 8, 18 to 35
Max Unit
dB
dB
mV p-p
2
SE
V
Ω
Ω
kΩ
pF
MHz
nV/√Hz
pA/√Hz
mV p-p
dB
dB
MHz
MHz