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
VOUT < 1LSB
REFLO = GND
X1/X2 = GND
CODE: ALL 1's
VOUT = 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 (
)
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
RL
REFLO = GND
X1/X2 = GND
LOAD RESISTANCE (
)
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
RL
VCC
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
(
A)
–25
5
1454 G01
95
125
760
750
740
730
720
710
700
690
35
65
VCC = 5.5V
VCC = 5V
VCC = 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