LTC1402 Linear Technology, LTC1402 Datasheet - Page 6

• Manufacturer Part Number: LTC1402
• Description: Serial 12-Bit/ 2.2Msps Sampling ADC with Shutdown
• Manufacturer: Linear Technology

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