Datasheet

6
LTC1405
1405fa
TYPICAL PERFORMANCE CHARACTERISTICS
UW
INPUT FREQUENCY (MHz)
0.1
–100
SFDR (dB)
–90
–85
–80
–75
–70
–65
1
10
1405 F07
–60
–55
–50
–95
100
DUAL SUPPLIES
±2.048V RANGE
GAIN = 1×
A
IN
= 0dBFS
INPUT FREQUENCY (MHz)
0.1
–100
SFDR (dB)
–90
–85
–80
–75
–70
–65
1
10
1405 F08
–60
–55
–50
–95
100
SINGLE SUPPLY
±1.024V RANGE
GAIN = 2×
A
IN
= 0dBFS
CODE
N – 1
1570
410554
V
REF
= 4.096V
GAIN = 1×
HITS
N
N + 1
1420 F09
1572
CLOCK FREQUENCY (MHz)
0 0.5 1.5 2.5 3.5 4.5
I
DD
(mA)
23
22
21
20
19
18
17
1.0 2.0 3.0 4.0
1405 G10
5.0
V
REF
= 4.096V
V
REF
= 2.048V
I
SS
(mA)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
CLOCK FREQUENCY (MHz)
0 0.5 1.5 2.5 3.5 4.51.0 2.0 3.0 4.0
1405 G11
5.0
INPUT FREQUENCY (MHz)
0.01
0
CMRR (dB)
10
30
40
50
1
90
1405 G12
20
0.1 10
60
70
80
FREQUENCY (MHz)
0
AMPLITUDE (dB)
0
–20
–40
–60
–80
–100
–120
0.5 1.0 1.5 2.0
1405 • G13
2.5
I
DD
vs Clock Frequency I
SS
vs Clock Frequency
CMRR vs Input Frequency
LTC1405 Nonaveraged 4096
Point FFT
SFDR vs Input Frequency,
Differential Input Grounded Input Histogram
SFDR vs Input Frequency,
Differential Input
f
SAMPLE
= 5Msps
f
IN
= 2.515869141MHz
SFDR = 86.2dB
SINAD = 71.3dB
V
IN
= 4V
P-P
± 5V SUPPLIES