LTC1664
typical perFormance characteristics
Integral Nonlinearity (INL)
Differential Nonlinearity (DNL)
Supply Current vs Temperature
300
280
260
240
220
200
180
160
1.0
0.8
2.5
2.0
V
REF
= V
CC
V
V
= 5V
REF
V
V
= 5V
REF
CC
CC
= 4.096V
= 4.096V
CODE = 1023
0.6
1.5
V
V
= 5.5V
0.4
1.0
CC
CC
0.2
0.5
= 4.5V
= 3.6V
0
0
V
CC
CC
–0.5
–1.0
–1.5
–2.0
–2.5
–0.2
–0.4
–0.6
–0.8
–1.0
V
= 2.7V
–55 –35 –15
5
45 65 85 105 125
25
0
256
512
768
1023
0
256
512
768
1023
TEMPERATURE (°C)
CODE
CODE
1664 G02
1664 G03
1664 G01
Load Regulation vs Output Current
Load Regulation vs Output Current
Large-Signal Step Response
5
4
3
2
1
0
V
CC
= V = 5V
REF
V
= V
= 5V
REF
V
= V
= 3V
REF
2.0
1.5
2.0
1.5
CC
CC
CODE = 512
CODE = 512
10% TO
90% STEP
1.0
1.0
0.5
0.5
0
0
–0.5
–1.0
–1.5
–2.0
–0.5
–1.0
–1.5
–2.0
SOURCE
–1
SINK
SOURCE
SINK
–2
0
1
2
–500
0
500
0
20
40
60
80
100
I
(mA)
I
(µA)
OUT
TIME (µs)
OUT
1664 G04
1664 G05
1664 G06
Supply Current vs Logic Input
Voltage
Mid-Scale Output Voltage
vs Load Current
Mid-Scale Output Voltage
vs Load Current
1.2
1.0
0.8
0.6
0.4
0.2
0
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
V
= V
V
= V
REF CC
REF
CC
ALL DIGITAL INPUTS
SHORTED TOGETHER
CODE = 512
CODE = 512
V
= 3.6V
= 3V
CC
CC
V
V
= 5.5V
= 5V
CC
CC
V
V
= 2.7V
V
= 4.5V
CC
CC
SOURCE
–10
SINK
10
SOURCE
–15 –12 –8 –4
SINK
4
0
1
2
3
4
5
–30
–20
0
20
30
0
8
12 15
LOGIC INPUT VOLTAGE (V)
I
(mA)
I
(mA)
OUT
OUT
1664 G09
1664 G07
1664 G08
1664fa
5