Datasheet

LTC1662
6
1662fa
typical perFormance characteristics
Gain Error vs Temperature
Load Regulation vs Output
Current at 5V
Load Regulation vs Output
Current at 3V
Output Amplifier Current Sourcing
Capability (Mid-Scale)
Output Amplifier Current Sinking
Capability (Mid-Scale)
Max/Min Output Voltage vs Source/
Sink Output Current (V
CC
= 5V)
Max/Min Output Voltage vs Source/
Sink Output Current (V
CC
= 3V) Large-Signal Step Response
Output Minimum Series
Resistance vs Load Capacitance
TEMPERATURE (°C)
–55
–35 –15 5 25 45 65 85 105
GAIN ERROR (mV)
1662 G10
0
–1
–2
–3
–4
–5
V
CC
= 5V
V
REF
= 4.096V
I
OUT
(mA)
–5 –4 –3 –2 –1 0 1 2 3 4 5
∆V
OUT
(LSB)
1662 G11
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
V
REF
= V
CC
= 5V
V
OUT
= 2.5V
CODE = 512
T
A
= 25°C
SOURCE SINK
I
OUT
(mA)
–1 –0.8–0.6–0.4–0.2 0 0.2 0.4 0.6 0.8 1
∆V
OUT
(LSB)
1662 G12
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
V
REF
= V
CC
= 3V
V
OUT
= 1.5V
CODE = 512
T
A
= 25°C
SOURCE SINK
OUTPUT SOURCE CURRENT (A)
1 10 100 1m 10m 100m
V
OUT
(V)
1662 G13
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
V
REF
= V
CC
CODE = 512
T
A
= 25°C
V
CC
= 5.5V
V
CC
= 5V
V
CC
= 4.5V
V
CC
= 3.6V
V
CC
= 3V
V
CC
= 2.7V
OUTPUT SINK CURRENT (A)
1µ 10µ 100µ 1m 10m 100m
V
OUT
(V)
1662 G14
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
V
REF
= V
CC
CODE = 512
T
A
= 25°C
V
CC
= 5.5V
V
CC
= 5V
V
CC
= 4.5V
V
CC
= 3.6V
V
CC
= 3V
V
CC
= 2.7V
OUTPUT SOURCE/SINK CURRENT (mA)
V
OUT
(V)
1662 G15
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
V
REF
= V
CC
T
A
= 25°C
CODE = 1023
CODE = 0
OUTPUT SOURCE/SINK CURRENT (mA)
V
OUT
(V)
1662 G16
3.0
2.7
2.4
2.1
1.8
1.5
1.2
0.9
0.6
0.3
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
V
REF
= V
CC
T
A
= 25°C
CODE = 1023
CODE = 0
TIME (0.5ms/DIV)
V
OUT
(V)
1662 G17
5
4
3
2
1
0
0
V
REF
= V
CC
= 5V
10% TO 90% STEP
CAPACITANCE (F)
100p 1000p 0.01µ 0.1µ 1µ 10µ 100µ
MINIMUM SERIES RESISTANCE (Ω)
1662 G18
180
160
140
120
100
80
60
40
20
0