Datasheet

LTC1669
5
1669fa
Integral Nonlinearity (INL) Differential Nonlinearity (DNL)
Source and Sink Current
Capability with V
CC
= 5V
Large-Signal Step Response Midscale Glitch Load Regulation vs Output Current
CODE
0
–1.0
ERROR (LSB)
–0.8
–0.4
–0.2
0
1.0
0.4
156
512
640
1669 G01
–0.6
0.6
0.8
0.2
28 384
768
896
1024
V
REF
= V
CC
= 5V
T
A
= 25°C
CODE
0
–1.0
ERROR (LSB)
–0.8
–0.4
–0.2
0
1.0
0.4
156
512
640
1669 G02
–0.6
0.6
0.8
0.2
28 384
768
896
1024
V
REF
= V
CC
= 5V
T
A
= 25°C
OUTPUT CURRENT SOURCE/SINK (mA)
01 3
OUTPUT VOLTAGE (V)
3.0
4.0
5.0
4.5
3.5
2.5
1.5
0.5
8
1669 G03
2.0
1.0
0
2
4
6
579
10
DAC CODE = 1023
DAC CODE = 0
T
A
= 25°C
5
5
0
4
3
2
V
OUT
(VOLTS)
SDA
(VOLTS)
1
0
1669 G04
CODE = 990
CODE = 32
5μs/DIV
V
CC
= 5V
R
L
= 4.7k
C
L
= 100pF
T
A
= 25°C
5V
0V
V
OUT
10mV/DIV
SDA
1669 G05
2μs/DIV
V
CC
= 5V
R
L
= 4.7k
C
L
= 100pF
T
A
= 25°C
CODE = 512 TO 511
I
OUT
(mA)
–4
–1.0
ΔV
OUT
(LSB)
–0.8
–0.4
–0.2
0
1.0
0.4
–2
0
1
1669 G06
–0.6
0.6
0.8
0.2
–3 –1
2
3
4
V
CC
= V
REF
= 5V
V
OUT
= 2.5V
CODE = 512
T
A
= 25°C
SOURCE SINK
TYPICAL PERFORMANCE CHARACTERISTICS
Load Regulation vs Output Current
Offset Error Voltage vs
Temperature
Full-Scale Output Voltage vs
Temperature
I
OUT
(mA)
–1.0
–1.0
ΔV
OUT
(LSB)
–0.8
–0.4
–0.2
0
1.0
0.4
–0.6 –0.4
0
0.2
1669 G07
–0.6
0.6
0.8
0.2
–0.8 –0.2
0.60.4
0.8
1.0
V
CC
= V
REF
= 3V
V
OUT
= 1.5V
CODE = 512
T
A
= 25°C
SOURCE SINK
TEMPERATURE (°C)
–60
OFFSET ERROR VOLTAGE (mV)
5
4
3
2
1
0
–1
–2
–3
–4
–5
–20
20
40
1669 G08
–40 0
60
80
100
TEMPERATURE (°C)
–60
OUTPUT VOLTAGE (V)
2.510
2.508
2.506
2.504
2.502
2.500
2.498
2.496
2.494
2.492
2.490
–20
20
40
1669 G09
–40 0
60
80
100
REFERENCE SET TO
INTERNAL BANDGAP