LTC1400
W U
TYPICAL PERFOR A CE CHARACTERISTICS
Differential Nonlinearity vs
Output Code
Integral Nonlinearity vs
Output Code
S/(N + D) vs Input Frequency
and Amplitude
80
70
60
50
40
30
20
10
0
1.00
0.75
0.50
0.25
0
1.00
0.75
0.50
0.25
0
V
= 0dB
IN
f
= 400kHz
f
= 400kHz
SAMPLE
SAMPLE
V
= –20dB
IN
–0.25
–0.50
–0.75
–1.00
–0.25
–0.50
–0.75
–1.00
V
= –60dB
IN
f
= 400kHz
SAMPLE
10
100
INPUT FREQUENCY (kHz)
1000
2048 2560
2048 2560
3072 3584 4096
0
512 1024 1536
3072 3584 4096
0
512 1024 1536
OUTPUT CODE
OUTPUT CODE
1400 TPC06
1400 TPC01
1400 TPC02
Signal-to-Noise Ratio (Without
Harmonics) vs Input Frequency
Peak Harmonic or Spurious Noise
vs Input Frequency
Acquisition Time vs
Source Impedance
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
4500
4000
3500
3000
2500
2000
1500
1000
500
80
70
60
50
40
30
20
10
0
T
= 25°C
f
= 400kHz
A
SAMPLE
f
= 400kHz
SAMPLE
0
10
100
INPUT FREQUENCY (kHz)
1000
10
100
1000
(Ω)
10000
10
100
INPUT FREQUENCY (kHz)
1000
R
SOURCE
1400 TPC05
1400 TPC08
1400 TPC07
Reference Voltage vs
Load Current
Power Supply Feedthrough vs
Ripple Frequency
Supply Current vs Temperature
0
2.435
2,430
2.425
2.420
2.415
2.410
2.405
2.400
2.395
2.390
20
15
10
5
f
= 400kHz
SAMPLE
f
= 400kHz
SAMPLE
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
V
(V
= 10mV)
RIPPLE
SS
V
(V
= 1mV)
RIPPLE
CC
0
1
10
100
1000
–50 –25
0
25
50
75 100 125
–8
–1
0
1
2
–7 –6 –5 –4 –3 –2
RIPPLE FREQUENCY (kHz)
TEMPERATURE (°C)
LOAD CURRENT (mA)
1400 TPC07.5
1400 TPC04
1400 TPC03
1400fa
5
Linear [ Linear ]
