Datasheet

LTC6400-20
7
640020f
FREQUENCY (MHz)
10
NOISE FIGURE (dB)
15
10
2
4
12
14
6
8
0
11
3
5
13
7
9
1
INPUT REFERRED NOISE VOLTAGE (nV/√Hz)
6
4
2
0
100 1000
640020 G07
NOISE FIGURE
EN
TIME (ns)
0
OUTPUT VOLTAGE (V)
1.35
1.20
1.25
1.30
1.15
2468
10
640020 G08
–OUT
+OUT
R
L
= 87.5Ω PER OUTPUT
TIME (ns)
0
OUTPUT VOLTAGE (V)
2.5
0.5
1.0
2.0
1.5
0
2468
10
640020 G09
–OUT
+OUT
R
L
= 87.5Ω PER OUTPUT
FREQUENCY (MHz)
1
IMPEDANCE MAGNITUDE (Ω)
250
200
150
100
50
0
PHASE (DEGREES)
50
30
10
–10
–30
–50
10 100 1000
640020 G05
Z
IN
Z
OUT
Z
IN
Z
OUT
PHASE
IMPEDANCE MAGNITUDE
FREQUENCY (MHz)
0
PHASE (DEGREE)
0
–100
–200
–300
–400
GROUP DELAY (ns)
1.2
0.9
0.6
0.3
0
200 400 600 800
1000
640020 G03
PHASE
GROUP DELAY
TEST CIRCUIT B
FREQUENCY (MHz)
10 100 1000 3000
GAIN (dB)
25
20
15
10
5
0
640020 G01
TEST CIRCUIT B
TYPICAL PERFORMANCE CHARACTERISTICS
Frequency Response Gain 0.1dB Flatness
S21 Phase and Group Delay vs
Frequency
Input and Output Refl ection and
Reverse Isolation vs Frequency
Input and Output Impedance vs
Frequency PSRR and CMRR vs Frequency
FREQUENCY (MHz)
10 100 1000 3000
GAIN FLATNESS (dB)
1.0
0.8
–0.8
0.6
–0.6
0.4
–0.4
0.2
–0.2
0
–1.0
640020 G02
TEST CIRCUIT B
Noise Figure and Input Referred
Noise Voltage vs Frequency Small Signal Transient Response Large Signal Transient Response
FREQUENCY (MHz)
10
S PARAMETERS (dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
100 1000 3000
640020 G04
S11
S22
S12
TEST CIRCUIT B
FREQUENCY (MHz)
1
PSRR, CMRR (dB)
100
90
80
70
60
50
40
30
0
10
20
10 100 1000
640020 G06
PSRR
CMRR