Datasheet

5
LTC1451
LTC1452/LTC1453
sn145123 145123fas
LOAD RESISTANCE (Ω)
10
OUTPUT SWING (V)
100 1k 10k
1451/2/3 G05
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
FULL SCALE
R
L
TIED TO GND
ZERO SCALE
R
L
TIED TO V
CC
V
CC
= 5V
OUTPUT SINK CURRENT (mA)
OUTPUT PULL-DOWN VOLTAGE (mV)
1000
100
10
1
0.1
0.0001 0.1 1 10 100
1451/2/3 G06
0.001 0.01
125°C
–55°C
25°C
LOGIC INPUT VOLTAGE (V)
0
SUPPLY CURRENT (mA)
1.15
1.05
0.95
0.85
0.75
0.65
0.55
0.45
0.35
4.0
1451/2/3 G04
1.0 1.5 2.5 3.5 4.50.5
2.0
3.0
5.0
ALL DIGITAL INPUTS
TIED TOGETHER
LTC1451
Supply Current vs Logic Input
Voltage
LTC1451
Output Swing vs Load Resistance
LTC1451
Pull-Down Voltage vs Output Sink
Current Capability
TEMPERATURE (°C)
–55
OFFSET VOLTAGE (µV)
–25
5
35 65
1451/2/3 G07
95
900
800
700
600
500
400
300
125
CODE
0
DNL ERROR (LSB)
0.5
0.0
–0.5
1024 2048 2560
1451/2/3 TA02
512 1536 3072 3584
4095
LTC1451
Differential Nonlinearity (DNL)
CODE
0
ERROR (LSB)
2.0
1.6
1.2
0.8
0.4
0
–0.4
–0.8
–1.2
–1.6
–2.0
1024
2048
2560
1451/2/3 G09
512 1536
3072
3584
4095
V
CC
= 5V
INTERNAL REFERENCE
T
A
= 25°C
LTC1451
Integral Nonlinearity (INL)
0.2LSB/DIV
LTC1452
Total Harmonic Distortion + Noise
vs Frequency
LTC1451
Broadband Output Noise
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION + NOISE (dB)
–40
–50
–60
–70
–80
–90
–100
10050 10k 100k
1451/2/3 G08
1k
V
CC
= 5V
V
IN
= 2V
P-P
V
OUT
= 4V
P-P
LTC1451
Offset Voltage vs Temperature
5ms/DIV
CODE = FFFH
BW = 3Hz TO 1.4MHz
GAIN = 1000
1451/2/3 G10
TYPICAL PERFOR A CE CHARACTERISTICS
UW