LTC1658 Просмотр технического описания (PDF) - Linear Technology
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LTC1658 Datasheet PDF : 12 Pages
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LTC1658
ELECTRICAL CHARACTERISTICS
The q 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 VCC.
Note 5: VOUT can only swing from (GND + VOS) to (VCC – VOS) 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
Integral Nonlinearity (INL) vs
Input Code
5
4
3
2
1
0
–1
–2
–3
–4
–5
0
4096
8192 12288 16383
CODE
1658 G01
Minimum Supply Headroom for
Full Output Swing vs Load Current
1.0
0.9 ∆VOUT < 1LSB
CODE: ALL 1s
0.8 VOUT = 4.096V
25°C
0.7
125°C
0.6
0.5
–55°C
0.4
0.3
0.2
0.1
0
0
5
10
15
LOAD CURRENT (mA)
1658 G04
Differential Nonlinearity (DNL) vs
Input Code
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
4096
8192
CODE
12288
16383
1658 G02
Minimum Output Voltage vs
Output Sink Current
1.0
0.9 CODE: ALL ZEROS
0.8
0.7
125°C
0.6
0.5
25°C
0.4
0.3
0.2
–55°C
0.1
0
0
5
10
15
OUTPUT SINK CURRENT (mA)
1658 G05
Supply Current vs Logic Input
Voltage
3
ALL DIGITAL INPUTS
TIED TOGETHER
2
1
0
0
1
2
3
4
5
LOGIC INPUT VOLTAGE (V)
1658 G03
Offset Error vs Temperature
0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0
–55 –25 5
35 65 95 125
TEMPERATURE (°C)
1658 G06
4
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