LTC1415 Linear Technology, LTC1415 Datasheet - Page 5

• Manufacturer Part Number: LTC1415
• Description: 12-Bit/ 1.25Msps/ 55mW Sampling A/D Converter
• Manufacturer: Linear Technology

TYPICAL PERFORMANCE CHARACTERISTICS
–10
–20
–30
–40
–50
–60
–70
–80
–90
80
70
60
50
40
30
20
10
0
0
10k
1k
S/(N + D) vs Input Frequency
and Amplitude
Spurious-Free Dynamic Range vs
Input Frequency
V
V
V
IN
IN
IN
= 0dB
= –20dB
= –60dB
–0.50
–1.00
1.00
0.50
0.00
INPUT FREQUENCY (Hz)
INPUT FREQUENCY (Hz)
10k
0
Integral Nonlinearity vs
Output Code
100k
512 1024 1536
100k
OUTPUT CODE
W
2048 2560 3072 3584 4096
LTC1415 • TPC04
LTC1415 • TPC01
1M
1M 2M
U
2M
LTC1415 • TPC07
–100
–120
–20
–40
–60
–80
80
70
60
50
40
30
20
10
0
0
1k
Signal-to-Noise Ratio vs
Input Frequency
Intermodulation Distortion Plot
0
fb – fa
2fa – fb
INPUT FREQUENCY (Hz)
10k
100k
100k
2fb – fa
2fa
200k
fa + fb
LTC1415 • TPC02
2fb
1M 2M
–0.50
–1.00
1.00
0.50
0.00
3fa
FREQUENCY (Hz)
0
Differential Nonlinearity vs
Output Code
fa + 2fb
2fa + fb
300k
512 1024 1536
3fb
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
OUTPUT CODE
1k
Distortion vs Input Frequency
400k
2048 2560 3072 3584 4096
INPUT FREQUENCY (Hz)
10k
f
f
f
SAMPLE
IN1
IN2
LTC1415 • TPC06
= 86.97509766kHz
= 113.2202148kHz
500k
= 1.25MHz
LTC1415
100k
LTC1415 • TPC05
THD
3RD
LTC1415 • TPC03
600k
2ND
1M 2M
5