LTC1402
TYPICAL PERFOR A CE CHARACTERISTICS
Sine Wave Spectrum Plot
(Bipolar)
±5V
Supply
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
f
SAMPLE
= 2222222.22Hz
f
SINE
= 109592.01Hz
2048 SAMPLES
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
(Bipolar Mode Plots Run with Dual
±5V
Supplies.
Unipolar Mode Plots Run with a Single 5V Supply. V
DD
= 5V, V
SS
= – 5V for Bipolar, V
DD
= 5V, V
SS
= 0V for Unipolar), T
A
= 25°C.
Sine Wave Spectrum Plot
(Bipolar) Dual
±5V
Supply
f
SAMPLE
= 2222222.22Hz
f
SINE
= 1131727.43Hz
2048 SAMPLES
AMPLITUDE (dB)
AMPLITUDE (dB)
AMPLITUDE (dB)
2ND
3RD
4TH
5TH
6TH
0.55
FREQUENCY (MHz)
Sine Wave Spectrum Plot
(Unipolar) 5V Supply
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
f
SAMPLE
= 2222222.22Hz
f
SINE
= 109592.01Hz
2048 SAMPLES
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
AMPLITUDE (dB)
AMPLITUDE (dB)
AMPLITUDE (dB)
2ND
3RD
4TH
5TH
6TH
0.55
FREQUENCY (MHz)
4V
P-P
Power Bandwidth and
100mV
P-P
Small-Signal
Bandwidth
5
0
AMPLITUDE (dB)
–10
INTERNAL REFERENCE VOLTAGE (V)
REJECTION (dB)
–3
–5
4V
P-P
–10
–15
– 20
– 25
0.1
1
10
100
FREQUENCY (MHz)
6
U W
1402 G09
1402 G12
IMD Spectrum Plot (Bipolar)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
f
SAMPLE
= 2352941.18Hz
f
SINEA
= 1250000Hz
±1V
INTO A
IN+
f
SINEB
= 1199449Hz
±1V
INTO A
IN–
IMD = 83.9dB
2048 SAMPLES
2ND
4TH
6TH
3RD
5TH
f
A
– f
B
2f
B
f
A
– f
B
2f
A
f
A
– 2f
B
3f
B
f
A
+ 2f
B
3f
A
1.11
0.55
FREQUENCY (MHz)
1.11
1402 G11
0.59
FREQUENCY (MHz)
2f
A
– f
B
2f
A
+ f
B
1.18
1402 G10
Sine Wave Spectrum Plot
(Unipolar) 5V Supply
f
SAMPLE
= 2222222.22Hz
f
SINE
= 1131727.43Hz
2048 SAMPLES
IMD Spectrum Plot (Unipolar)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
f
SAMPLE
= 2352941.18Hz
f
SINEA
= 1250000Hz INTO A
IN+
,
1.5V TO 3.5V
f
SINEB
= 1199449Hz INTO A
IN–
,
1.5V TO 3.5V
IMD = – 84.1dB
2048 SAMPLES
f
A
– f
B
2f
B
f
A
+ f
B
2f
A
3f
B
2ND
4TH
6TH
3RD
5TH
2f
A
– f
B
, f
A
+ 2f
B
2f
A
+ f
B
3f
A
f
A
– 2f
B
0.59
FREQUENCY (MHz)
1.18
1402 G13
1.11
0
0.55
FREQUENCY (MHz)
1.11
1402 G08
PSRR vs Frequency
0
4.100
Load Regulation for V
REF
4.090
4.080
4070
100mV
P-P
– 20
– 30
– 40
– 50
– 60
–70
V
CC
V
SS
V
DD
DGND
.4.060
4.050
4.040
1000
1402 F07
– 80
0.1
1
10
100
FREQUENCY (MHz)
1000
1402 G18
0
0.4
0.8
1.2
1.6
LOAD CURRENT (mA)
2.0
1402 G20
LINER [ LINEAR TECHNOLOGY ]
