Datasheet

5
LTC1401
1401fa
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
CODE
0
–1.0
DNL ERROR (LSBs)
–0.5
0
0.5
1.0
512 1024 1536 2048
LTC1401 • TPC01
2560 3072 3584 4096
f
SAMPLE
= 200kHz
Differential Nonlinearity vs
Output Code
INPUT FREQUENCY (kHz)
10
0
SIGNAL/(NOISE + DISTORTION)(dB)
10
20
30
40
80
100 1000
LTC1401 • TPC03
50
60
70
V
IN
= 0dB
V
IN
= –20dB
V
IN
= –60dB
T
A
= 25°C
f
SAMPLE
= 200kHz
S/(N + D) vs Input Frequency
and Amplitude
Acquisition Time vs
Source Impedance
SOURCE RESISTANCE (Ω)
10
2500
t
ACQ
(ns)
3000
3500
4000
4500
100 1k 10k
LTC1401 • TPC06
2000
1500
500
0
1000
T
A
= 25°C
Signal-to-Noise Ratio (Without
Harmonics) vs Input Frequency
INPUT FREQUENCY (kHz)
10
0
SIGNAL-TO-NOISE RATIO (dB)
10
20
30
40
80
100 1000
LTC1401 • TPC04
50
60
70
T
A
= 25°C
f
SAMPLE
= 200kHz
Reference Voltage vs
Load Current
LOAD CURRENT (mA)
–7
0.90
REFERENCE VOLTAGE (V)
0.95
1.05
1.10
1.15
1.40
1.25
–5
–3
–2 2
LTC1401 • TPC07
1.00
1.30
1.35
1.20
–6 –4
–1
0
1
T
A
= 25°C
TEMPERATURE (˚C)
–50
SUPPLY CURRENT (mA)
8
10
12
25 75
LTC1401 • TPC09
6
4
–25 0
50 100 125
2
0
V
IN
= 3.6V
V
IN
= 3V
V
IN
= 2.7V
f
SAMPLE
= 200kHz
Supply Current vs Temperature
Integral Nonlinearity vs
Output Code
Peak Harmonic or Spurious Noise
vs Input Frequency
INPUT FREQUENCY (kHz)
10
–50
SPURIOUS-FREE DYNAMIC RANGE (dB)
–40
–30
–80
–90
–70
–60
–20
–10
100 1000
LTC1401 • TPC05
0
T
A
= 25°C
f
SAMPLE
= 200kHz
Power Supply Feedthrough vs
Ripple Frequency
CODE
0
–1.0
INL ERROR (LSBs)
–0.5
0
0.5
1.0
512 1024 1536 2048
LTC1401 • TPC02
2560 3072 3584 4096
f
SAMPLE
= 200kHz
RIPPLE FREQUENCY (kHz)
1
–60
POWER SUPPLY FEEDTHROUGH (dB)
–50
–40
–30
–20
10 100 1000
LTC1401 • TPC08
–70
–80
–90
–100
–10
0
f
SAMPLE
= 200kHz
f
IN
= 49.853kHz
V
CC
(V
RIPPLE
= 1mV)