LTC1450/LTC1450L
W
U
TYPICAL PERFORMANCE CHARACTERISTICS
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
1600
1400
1000
V
= 3V
CC
ALL LOGIC INPUTS
TIED TOGETHER
FULL SCALE
R TIED TO GND
L
125°C
1200
1000
100
25°C
V
= 5V
800
600
CC
10
–55°C
400
200
1
ZERO SCALE
R TIED TO V
L
CC
0
0.1
10
100
1k
10k
0.0001 0.001 0.01
0.1
1
10
100
0
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
LOGIC INPUT VOLTAGE (V)
1450/50L G04
OUTPUT SINK CURRENT (mA)
LOAD RESISTANCE (Ω)
1450/50L G06
1450/50L G05
0.2
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
2
0
0
–0.2
–2
0
2048
3072 3584
3584
3072
4095
–55 –35 –15
5
25 45 65 85 105 125
512 1024 1536
2560
4095
0
2048
512 1024 1536
2560
CODE
TEMPERATURE (°C)
CODE
1450/50L G08
1450/50L G07
1450/50L G09
–40
–50
–60
–70
90
V
= 5V
CODE = FFF
H
CC
CODE = FFF
H
V
V
= 2V
P-P
80
70
60
50
40
30
20
10
0
X1/X2 = GND
REFHI
OUT
P-P
= 4V
BW = 3Hz to 1.2MHz
TOTAL = 0.35mV
RMS
V
REFOUT
OUT
–80
–90
–100
100
1k
10k
100k
1
10
100
1k
10k
10M
5ms/DIV
FREQUENCY (Hz)
FREQUENCY (Hz)
1450/50L G11
1450/50L G10
1450/50L G12
5
Linear [ Linear ]
