Datasheet

LTC2205-14
11
220514fb
TYPICAL PERFORMANCE CHARACTERISTICS
LTC2205-14: SFDR vs Input
Frequency, RAND = 1, DITH = 1
LTC2205-14: SNR vs Input
Frequency, RAND = 1, DITH = 0
LTC2205-14: SFDR and SNR vs
Sample Rate, f
IN
= 5.1MHz,
RAND = 0, DITH = 0
SAMPLE RATE (Msps)
0
SFDR (dBc) AND SNR (dBFS)
90
100
80
220514 G40
80
70
20
40
50
100
110
60
10
30
90
70
SFDR
SNR
LTC2205-14: SFDR and SNR vs
Supply Voltage, f
IN
= 5.1MHz,
RAND = 0, DITH = 0
SUPPLY VOLTAGE (V)
2.4
70
SFDR (dBc) AND SNR (dBFS)
80
90
100
110
2.6 2.8 3.0
SFDR
SNR
3.2
220514 G41
3.4 3.6
LTC2205-14: I
VDD
vs Sample
Rate, f
IN
= 5.1MHz, RAND = 0,
DITH = 0
LTC2205-14: Gain Drift
with Internal Reference vs
Temperature
SAMPLE RATE (Msps)
I
VDD
(mA)
180
200
220
80
220214 G42
160
140
170
190
210
150
130
20
40
60
10090
30
50
70
100100
V
DD
= 3.47V
V
DD
= 3.13V
V
DD
= 3.3V
TEMPERATURE (°C)
–60
GAIN DRIFT (% FS)
–0.15
–0.05
100
220514 G43
–0.25
–0.35
–20
20
60
–40
0
40
80
0.05
–0.20
–0.10
–0.30
0
INPUT FREQUENCY (MHz)
0
SFDR (dBc)
90
100
200
220414 G38
80
70
50
100
150
250
110
PGA = 1
PGA = 0
INPUT FREQUENCY (MHz)
0
73
SNR (dBFS)
74
75
76
77
78
79
50 100
PGA = 0
PGA = 1
150 200
220514 G39
250
TIME AFTER WAKE-UP OR CLOCK START (μs)
0
FULL-SCALE ERROR (%)
0.2
0.6
1.0
400
2208 G42
–0.2
–0.6
0
0.4
0.8
–0.4
–0.8
–1.0
10050
200150
300 350 450
250
500
TIME FROM WAKE-UP OR CLOCK START (μs)
0
FULL-SCALE ERROR (%)
1
3
5
800
220514 G45
–1
–3
0
2
4
–2
–4
–5
200100
400300
600 700 900
500
1000
Mid-Scale Settling After Wake
Up from Shutdown or Starting
Encode Clock
Full-Scale Settling After Wake
Up from Shutdown or Starting
Encode Clock