LTC1661 Linear Technology, LTC1661 Datasheet - Page 4

• Manufacturer Part Number: LTC1661
• Description: Micropower Dual 10-Bit DAC in MSOP
• Manufacturer: Linear Technology

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