Datasheet

LTC1400
5
1400fa
Differential Nonlinearity vs
Output Code
Integral Nonlinearity vs
Output Code
S/(N + D) vs Input Frequency
and Amplitude
Signal-to-Noise Ratio (Without
Harmonics) vs Input Frequency
Peak Harmonic or Spurious Noise
vs Input Frequency
Acquisition Time vs
Source Impedance
Reference Voltage vs
Load Current
Power Supply Feedthrough vs
Ripple Frequency
Supply Current vs Temperature
TYPICAL PERFOR A CE CHARACTERISTICS
U W
OUTPUT CODE
0
DIFFERENTIAL NONLINEARITY (LSBs)
4096
1400 TPC01
1024
2048
3072
1.00
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
512
1536
2560
3584
f
SAMPLE
= 400kHz
OUTPUT CODE
0
INTEGRAL NONLINEARITY (LSBs)
4096
1400 TPC02
1024
2048
3072
1.00
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
512
1536
2560
3584
f
SAMPLE
= 400kHz
LOAD CURRENT (mA)
–8
REFERENCE VOLTAGE (V)
–4
0
2
2.435
2,430
2.425
2.420
2.415
2.410
2.405
2.400
2.395
2.390
1400 TPC03
–6 –2
–5
–1
1
–7 –3
INPUT FREQUENCY (kHz)
80
70
60
50
40
30
20
10
0
100
1400 TPC06
10
1000
SIGNAL/(NOISE + DISTORTION) (dB)
V
IN
= 0dB
V
IN
= –20dB
V
IN
= –60dB
f
SAMPLE
= 400kHz
INPUT FREQUENCY (kHz)
80
70
60
50
40
30
20
10
0
100
1400 TPC07
10
1000
SIGNAL-TO-NOISE RATIO (dB)
f
SAMPLE
= 400kHz
INPUT FREQUENCY (kHz)
10
SPURIOUS-FREE DYNAMIC RANGE (dB)
0
–10
–2
0
–30
–4
0
–5
0
–60
–7
0
–80
–9
0
–100
100 1000
1400 TPC08
f
SAMPLE
= 400kHz
R
SOURCE
(Ω)
10
ACQUISITION TIME (ns)
4500
4000
3500
3000
2500
2000
1500
1000
500
0
100 1000 10000
1400 TPC05
T
A
= 25°C
RIPPLE FREQUENCY (kHz)
1
AMPLITUDE OF POWER SUPPLY FEEDTHROUGH (dB)
0
–1
0
–2
0
–3
0
–4
0
–5
0
–6
0
–7
0
–8
0
–9
0
–100
10 100 1000
1400 TPC07.5
f
SAMPLE
= 400kHz
V
CC
(V
RIPPLE
= 1mV)
V
SS
(V
RIPPLE
= 10mV)
TEMPERATURE (°C)
–5
0
SUPPLY CURRENT (mA)
20
15
10
5
0
–25 0
25
1400 TPC04
50 75 100 125
f
SAMPLE
= 400kHz