![](http://datasheet.mmic.net.cn/Linear-Technology/LTC1401IS8-TRPBF_datasheet_101438/LTC1401IS8-TRPBF_5.png)
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
fSAMPLE = 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
VIN = 0dB
VIN = –20dB
VIN = –60dB
TA = 25°C
fSAMPLE = 200kHz
S/(N + D) vs Input Frequency
and Amplitude
Acquisition Time vs
Source Impedance
SOURCE RESISTANCE (
)
10
2500
t ACQ
(ns)
3000
3500
4000
4500
100
1k
10k
LTC1401 TPC06
2000
1500
500
0
1000
TA = 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
TA = 25°C
fSAMPLE = 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
TA = 25°C
TEMPERATURE (C)
–50
SUPPLY
CURRENT
(mA)
8
10
12
25
75
LTC1401 TPC09
6
4
–25
0
50
100
125
2
0
VIN = 3.6V
VIN = 3V
VIN = 2.7V
fSAMPLE = 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
TA = 25°C
fSAMPLE = 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
fSAMPLE = 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
fSAMPLE = 200kHz
fIN = 49.853kHz
VCC (VRIPPLE = 1mV)