Datasheet
LTC2203/LTC2202
11
22032fd
LTC2203: SNR and SFDR
vs Sample Rate
LTC2203: SNR and SFDR vs
Supply Voltage (V
DD
), f
IN
= 5MHz
LTC2203: I
VDD
vs Sample Rate,
5MHz Sine Wave, –1dBFS
SAMPLE RATE (Msps)
0
75
SNR AND SFDR (dBFS)
80
90
95
100
110
5
25
35
22032 G34
85
105
20
45
50
10
15
30 40
SFDR
RATED MAX
SNR
SUPPLY VOLTAGE (V)
2.8
SNR SFDR (dBFS)
95
100
105
3.4 3.5
22032 G35
90
85
2.9 3.0 3.1 3.2 3.3 3.6
80
75
110
SFDR
LOWER LIMIT
UPPER LIMIT
SNR
SAMPLE RATE (Msps)
0
I
VDD
(mA)
65
70
75
20
22032 G36
60
55
50
5
10
15
25
LTC2203: Normalized Full
Scale vs Temperature, Internal
Reference, 5 Units
LTC2203: Offset Voltage
vs Temperature, 5 Units
LTC2203: SFDR vs Input Common
Mode Voltage, f
IN
= 5MHz,
–1dBFS, PGA = 0
LTC2202: Integral Nonlinearity
(INL) vs Output Code
LTC2202: Differential Nonlinearity
(DNL) vs Output Code
LTC2202: AC Grounded Input
Histogram (256K Samples)
TEMPERATURE (°C)
–40
0.99
NORMALIZED FULL SCALE
0.995
1
1.005
1.01
–20 0 20 40
22032 G37
60 80
TEMPERATURE (˚C)
–40
OFFSET VOLTAGE (mV)
2
4
6
20 60
22032 G38
0
–2
–20 0
40 80
–4
–6
INPUT COMMON MODE VOLTAGE (V)
0.5
60
SFDR (dBc)
70
80
90
0.75
1
1.25 1.50
22032 G39
1.75
100
110
65
75
85
95
105
2
CODE
0
INL ERROR (LSB)
0
0.5
1.0
65536
22032 G40
–0.5
–1.0
–2.0
16384
32768
49152
–1.5
2.0
1.5
CODE
0
1.0
DNL ERROR (LSB)
0.8
0.4
0.2
0
1.0
0.4
16384
32768
22032 G41
0.6
0.6
0.8
0.2
49152
65536
OUTPUT CODE
32793
COUNT
40000
35000
30000
25000
15000
5000
45000
50000
32797
22032 G42
20000
10000
0
32801 32805
32809
TYPICAL PERFORMANCE CHARACTERISTICS