Datasheet

4
LTC1658
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the life
a device may be impaired.
Note 2: Nonlinearity is defined from code 50 to code 16383 (full scale).
See Applications Information.
Note 3: DAC switched between code 16383 and code 50.
Note 4: Digital inputs at 0V or V
CC
.
Note 5: V
OUT
can only swing from (GND + V
OS
) to (V
CC
– V
OS
) when
output is unloaded. See Applications Information.
Note 6: Guaranteed by design. Not subject to test.
Note 7: Measured at code 50.
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Differential Nonlinearity (DNL) vs
Input Code
Supply Current vs Logic Input
Voltage
CODE
0
–5
–1
–2
–3
–4
0
1
2
3
4
5
INL ERROR (LSB)
4096 8192
1658 G01
12288
16383
Integral Nonlinearity (INL) vs
Input Code
LOGIC INPUT VOLTAGE (V)
012345
SUPPLY CURRENT (mA)
1658 G03
3




2




1




0
ALL DIGITAL INPUTS
TIED TOGETHER
CODE
0
–1.0
–0.2
–0.4
–0.6
–0.8
0
0.2
0.4
0.6
0.8
1.0
DNL ERROR (LSB)
4096 8192
1658 G02
12288
16383
Minimum Output Voltage vs
Output Sink Current Offset Error vs Temperature
Minimum Supply Headroom for
Full Output Swing vs Load Current
OUTPUT SINK CURRENT (mA)
0 5 10 15
OUTPUT PULL-DOWN VOLTAGE (V)
1658 G05
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
CODE: ALL ZEROS
125°C
25°C
–55°C
LOAD CURRENT (mA)
0 5 10 15
V
CC
– V
OUT
(V)
1658 G04
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
∆V
OUT
< 1LSB
CODE: ALL 1s
V
OUT
= 4.096V
125°C
25°C
–55°C
TEMPERATURE (°C)
–55 –25 5 35 65 95 125
OFFSET ERROR (LSB)
1658 G06
0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0