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LTC1196/LTC1198
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Power Supply Feedthrough vs
Ripple Frequency
0
TA = 25°C
VCC (VRIPPLE = 20mV)
fCLK = 12MHz
–10
50
TA = 25°C
VCC (VRIPPLE = 10mV)
fCLK = 5MHz
–10
FEEDTHROUGH(dB)
–20
–30
–40
–50
SIGNAL TO NOISE PLUS DISTORTION (dB)
0
FEEDTHROUGH (dB)
S/(N + D) vs Reference Voltage
and Input Frequency
Power Supply Feedthrough vs
Ripple Frequency
–20
–30
–40
–50
-
–60
–60
–70
–70
10k
100k
RIPPLE FREQUENCY (Hz)
1k
10k
100k
RIPPLE FREQUENCY (Hz)
1k
1M
1M
Intermodulation Distortion at 2.7V
–70
SIGNAL TO NOISE-PLUS-DISTORTION (dB)
MAGNITUDE (dB)
MAGNITUDE (dB)
–60
–30
–40
–50
–60
–70
–80
–80
–90
–90
–100
–100
150
100
FREQUENCY (kHz)
200
250
100
0
300
200
FREQUENCY (kHz)
VREF = VCC = 5V
fIN = 500kHz
fSMPL = 1MHz
30
20
10
70
SPURIOUS-FREE DYNAMIC RANGE (dB)
80
VREF = VCC = 5V
60
VREF = VCC = 2.7V
40
20
VCC = 5V
fCLK = 12MHz
60
50
VCC = 3V
fCLK = 5MHz
40
30
20
10
TA = 25°C
0
1k
100k
10k
1M
INPUT FREQUENCY (Hz)
10M
1k
10k
100k
1M
10M
FREQUENCY (Hz)
1196/98 G34
–5
0
1196/98 G33
Spurious-Free Dynamic Range vs
Frequency
100
PEAK-TO-PEAK OUTPUT (%)
40
0
–40 –35 –30 –25 –20 –15 –10
INPUT LEVEL (dB)
400
Output Amplitude vs
Input Frequency
10
VCC = 5V
25
1.25 1.75 2.25 2.75 3.25 3.75 4.25 4.75 5.25
REFERENCE VOLTAGE (V)
1196/98 G32
1196/98 G31
0
30
S/(N + D) vs Input Level
VCC = 5V
f1 = 200kHz
f2 = 210kHz
fSMPL = 750kHz
–20
–50
50
35
50
–10
–40
0
40
Intermodulation Distortion at 5V
VCC = 2.7V
f1 = 100kHz
f2 = 110kHz
fSMPL = 420kHz
–30
fIN = 500kHz
1196/98 G30
0
0
–20
fIN = 200kHz
fIN = 100kHz
1196/98 G29
1196/98 G28
–10
45
1196/98 G35