LTC1275 LINER [Linear Technology], LTC1275 Datasheet - Page 7

• Manufacturer Part Number: LTC1275
• Description: 12-Bit, 300ksps Sampling A/D Converters with Reference
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFOR
–0.5
–1.0
1.0
0.5
12
11
10
0
9
8
7
6
5
4
3
2
1
0
10k
0
Integral Nonlinearity
ENOBs and S/(N + D)
vs Input Frequency
f
SAMPLE
512 1024 1536 2048
= 300kHz
INPUT FREQUENCY (Hz)
–100
–120
–20
–40
–60
–80
100k
CODE
0
1k
Power Supply Feedthrough
vs Ripple Frequency (LTC1273)
f
SAMPLE
2560 3072 3584 4096
LTC1273/75/76 • TPC04
LTC1273/75/76 • TPC01
= 300kHz
RIPPLE FREQUENCY (Hz)
W
10k
1M
A
U
2M
CE
74
68
62
56
50
(V
(V
100k
RIPPLE
RIPPLE
LTC1273/75/76 • TPC07
DGND
C
V
DD
–0.5
–1.0
HARA TERISTICS
= 1mV)
= 0.1V)
1.0
0.5
0
80
70
60
50
40
30
20
10
0
Differential Nonlinearity
0
1k
Signal-to-Noise Ratio (Without
Harmonics) vs Input Frequency
1M
512 1024 1536 2048
f
SAMPLE
C
= 300kHz
INPUT FREQUENCY (Hz)
10k
CODE
2560 3072 3584 4096
100k
–100
–120
LTC1273/75/76 • TPC02
–20
–40
–60
–80
LTC1273/75/76 • TPC05
0
1k
Power Supply Feedthrough
vs Ripple Frequency (LTC1275/76)
f
SAMPLE
1M
= 300kHz
RIPPLE FREQUENCY (Hz)
10k
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
25
20
15
10
LTC1275/LTC1276
5
0
0
–50
V
DGND (V
V
1k
DD
SS
Supply Current vs Temperature
Distortion vs Input Frequency
f
SAMPLE
(V
(V
–25
RIPPLE
RIPPLE
100k
RIPPLE
LTC1273/75/76 • TPC08
10k
= 300kHz
INPUT FREQUENCY (Hz)
= 10mV)
= 1mV)
0
TEMPERATURE (°C)
= 0.1V)
25
100k
1M
LTC1273
50
THD
2nd HARMONIC
3rd HARMONIC
75
LTC1273/75/76 • TPC03
LTC1273/75/76 • TPC06
1M
100
7
125
10M