Datasheet

4
LTC1661
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Integral Nonlinearity (INL) Differential Nonlinearity (DNL)
CODE
0 256 512 768 1023
LSB
1661 G01
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
CODE
0 256 512 768 1023
LSB
1661 G02
0.75
–0.75
0.60
0.40
0.20
0
–0.20
–0.40
–0.60
0246810
V
CC
– V
OUT
(mV)
1661 G03
1400
1200
1000
800
600
400
200
0
–55°C
25°C
125°C
V
REF
= 4.096V
∆V
OUT
< 1LSB
CODE = 1023
| I
OUT
| (mA) (Sourcing)
| I
OUT
| (mA) (Sinking)
0246810
V
OUT
(mV)
1661 G04
1400
1200
1000
800
600
400
200
0
–55°C
25°C
125°C
V
CC
= 5V
CODE = 0
I
OUT
(mA)
–30 –20 –10 0 10 20 30
V
OUT
(V)
1661 G05
3
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2
V
CC
= 4.5V
V
CC
= 5V
V
CC
= 5.5V
V
REF
= V
CC
CODE = 512
SINKSOURCE
I
OUT
(mA)
–15 –4–8–12 0 4 8 12 15
V
OUT
(V)
1661 G06
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
V
CC
= 2.7V
V
CC
= 3V
V
CC
= 3.6V
V
REF
= V
CC
CODE = 512
SINKSOURCE
Midscale Output Voltage vs
Load Current
Midscale Output Voltage vs
Load Current
Minimum Supply Headroom vs
Load Current (Output Sourcing)
Minimum V
OUT
vs
Load Current (Output Sinking)
Note 3: Digital inputs at 0V or V
CC
.
Note 4: Load is 10kΩ in parallel with 100pF.
TI I G CHARACTERISTICS
UW
Note 5: V
CC
= V
REF
= 5V. DAC switched between 0.1V
FS
and 0.9V
FS
,
i.e., codes k = 102 and k = 922.
Note 6: Guaranteed by design and not subject to test.