Datasheet

4
LTC1454/LTC1454L
TYPICAL PERFORMANCE CHARACTERISTICS
UW
Minimum Supply Headroom for
Full Output Swing vs Load Current
LTC1454 Output Swing vs
Load Resistance
CODE
0
DNL ERROR (LSB)
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
1024
2048
2560
1454 G08
512 1536
3072
3584
4095
CODE
0
INL 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
1454 G07
512 1536
3072
3584
4095
LOAD CURRENT (mA)
V
CC
– V
OUT
(V)
1.0
0.8
0.6
0.4
0.2
0
1454 G03
0
∆V
OUT
< 1LSB
REFLO = GND
X1/X2 = GND
CODE: ALL 1's
V
OUT
= 4.095V
5
10 15 20 25 30
LTC1454 Minimum Output
Voltage vs Output Sink Current
LTC1454 Output Swing vs
Load Resistance
OUTPUT SINK CURRENT (mA)
OUTPUT PULL-DOWN VOLTAGE (mV)
1000
900
800
700
600
500
400
300
200
100
0.1
1454 G04
0
125°C
REFLO = GND
X1/X2 = GND
–55°C
25°C
5
10 15 20 25 30
LOAD RESISTANCE (Ω)
10
OUTPUT SWING (V)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
100 1k 10k
1454 G05
R
L
REFLO = GND
X1/X2 = GND
LOAD RESISTANCE (Ω)
10
OUTPUT SWING (V)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
100 1k 10k
1458 G06
REFLO = GND
X1/X2 = GND
R
L
V
CC
LTC1454 Full-Scale Voltage vs
Temperature
TEMPERATURE (°C)
–55
SFULL-SCALE VOLTAGE (V)
–25
5
1454 G02
95 125
4.110
4.105
4.100
4.095
4.090
4.085
4.080
35 65
TEMPERATURE (°C)
–55
SUPPLY CURRENT (µA)
–25
5
1454 G01
95 125
760
750
740
730
720
710
700
690
35 65
V
CC
= 5.5V
V
CC
= 5V
V
CC
= 4.5V
LTC1454
Supply Current vs Temperature
LOGIC INPUT VOLTAGE (V)
0
SUPPLY CURRENT (mA)
2.6
2.1
1.6
1.1
0.6
1.0
2.0
2.5 4.5 5.0
1454 G09
0.5 1.5
3.0
3.5
4.0
LTC1454 Supply Current vs
Logic Input Voltage
LTC1454
Differential Nonlinearity
LTC1454
Integral Nonlinearity