Datasheet

LTC2355-12/LTC2355-14
7
2355fa
Differential and Integral Linearity
vs Conversion Rate
SINAD vs Conversion Rate, Input
Frequency = 1.4MHz
2.5V
P-P
Power Bandwidth CMRR vs Frequency PSRR vs Frequency
Internal Reference Voltage vs
Load Current
Internal Reference Voltage
vs V
DD
V
DD
Supply Current vs
Conversion Rate
typical perFormance characteristics
T
A
= 25°C, V
DD
= 3.3V (LTC2355-14)
T
A
= 25°C, V
DD
= 3.3V (LTC2355-12 and LTC2355-14)
CONVERSION RATE (Msps)
2.0
LINEARITY (LSB)
3
4
2
1
0
–1
–2
–3
–4
3.6
2355 G09
2.4 2.8 3.2 4.03.42.2 2.6 3.0 3.8
MAX INL
MAX DNL
MIN INL
MIN DNL
CONVERSION RATE (Msps)
2
SINAD (dB)
73
74
75
3.6
2355 G10
72
71
70
2.2 2.4 2.6
2.8 3
3.2 3.4 3.8
4
FREQUENCY (Hz)
1M 10M 100M 1G
–18
AMPLITUDE (dB)
–12
–6
0
2355 G11
–24
–30
–36
6
12
FREQUENCY (Hz)
100
CMRR (dB)
0
–20
–40
–60
–80
–100
–120
1k
10k 100k 1M
2355 G12
10M 100M
FREQUENCY (Hz)
1 10
–50
PSRR (dB)
–45
–40
–35
–30
100 1k 10k 100k 1M
2355 G13
–55
–60
–65
–70
–25
LOAD CURRENT (mA)
0.4 0.8 1.2 1.6
2355 G14
2.00.20 0.6 1.0 1.4 1.8
2.4890
V
REF
(V)
2.4894
2.4898
2.4902
2.4892
2.4896
2.4900
V
DD
(V)
2.4890
V
REF
(V)
2.4894
2.4898
2.4902
2.4892
2.4896
2.4900
2.8 3.0 3.2 3.4
2355 G15
2.6 3.6
CONVERSION RATE (Mps)
0
0
V
DD
SUPPLY CURRENT (mA)
1
0.5
2
1.5
3
2.5
4
3.5
6
5.5
0.5
1 1.5 2
2355 G16
2.5 3.53 4
5
4.5