LTC1669
TYPICAL PERFOR A CE CHARACTERISTICS
U W
Source and Sink Current
Capability with VCC = 5V
Integral Nonlinearity (INL)
Differential Nonlinearity (DNL)
1.0
0.8
1.0
0.8
5.0
4.5
T
= 25°C
V
T
= V = 5V
CC
V
T
= V = 5V
CC
A
REF
A
REF
A
= 25°C
= 25°C
DAC CODE = 1023
0.6
0.6
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0.4
0.4
0.2
0.2
0
0
–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
–0.8
–1.0
DAC CODE = 0
0
512
768 896
0
28 156 384
640
1024
28 156 384
512
640 1024
768 896
0
1
2
3
4
5
6
7
8
9
10
CODE
CODE
OUTPUT CURRENT SOURCE/SINK (mA)
1669 G01
1669 G02
1669 G03
Large-Signal Step Response
Midscale Glitch
Load Regulation vs Output Current
1.0
0.8
V
V
= V
= 5V
CC
REF
5
0
5
4
3
2
1
0
= 2.5V
SDA
OUT
5V
CODE = 512
(VOLTS)
SDA
0.6
T
= 25°C
A
0V
0.4
CODE = 512 TO 511
CODE = 990
0.2
0
V
= 5V
CC
L
L
R
= 4.7k
= 100pF
= 25°C
V
OUT
–0.2
–0.4
–0.6
–0.8
–1.0
C
T
V
(VOLTS)
SOURCE
SINK
OUT
A
10mV/DIV
V
= 5V
CC
L
L
R
= 4.7k
= 100pF
= 25°C
CODE = 32
C
T
A
1669 G04
1669 G05
–4
0
2
3
–3 –2 –1
I
1
4
5µs/DIV
2µs/DIV
(mA)
OUT
1669 G06
Offset Error Voltage vs
Temperature
Full-Scale Output Voltage vs
Temperature
Load Regulation vs Output Current
1.0
0.8
5
4
2.510
2.508
2.506
2.504
2.502
2.500
2.498
2.496
2.494
2.492
2.490
V
V
= V
= 3V
CC
REF
REFERENCE SET TO
INTERNAL BANDGAP
= 1.5V
OUT
CODE = 512
0.6
3
T
= 25°C
A
2
0.4
0.2
1
0
0
–0.2
–0.4
–0.6
–0.8
–1.0
–1
–2
–3
–4
–5
SOURCE
SINK
0.8 1.0
–60
80
80
–1.0
20
TEMPERATURE (°C)
60
–0.8–0.6–0.4–0.2
0
0.2 0.4 0.6
–40 –20
0
40
100
–60 –40
0
20
60
100
–20
40
I
(mA)
TEMPERATURE (°C)
OUT
1669 G07
1669 G08
1669 G09
1669f
4