LTC1663 Ver la hoja de datos (PDF) - Linear Technology
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LTC1663 Datasheet PDF : 12 Pages
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LTC1663
TIMING CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. VCC = 2.7V to 5.5V, VCC set as reference, VOUT unloaded, unless otherwise noted.
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
tSU, DAT
tLOW
tHIGH
tf
tr
Data Setup Time
Clock Low Period
Clock High Period
Clock, Data Fall Time
Clock, Data Rise Time
● 250
●
4.7
●
4.0
●
●
ns
μs
50
μs
300
ns
1000
ns
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Nonlinearity and monotonicity are defined from code 20 to code
1003 (full scale). See Applications Information.
Note 3: Digital inputs at 0V or VCC.
Note 4: Load is 10kΩ in parallel with 100pF.
Note 5: VCC = VREF = 5V. DAC switched between 0.1VFS and 0.9VFS, i.e.,
codes k = 102 and k = 922.
Note 6: All values are referenced to VIH and VIL levels.
Note 7: Guaranteed by design and not subject to test.
Note 8: The LTC1663E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
TYPICAL PERFORMANCE CHARACTERISTICS
Integral Nonlinearity (INL)
1.0
0.8
VREF = VCC = 5V
TA = 25°C
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
28 156 384 512 640 768 896 1024
CODE
1663 G01
Differential Nonlinearity (DNL)
1.0
0.8
VREF = VCC = 5V
TA = 25°C
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
28 156 384 512 640 768 896 1024
CODE
1663 G02
Source and Sink Current
Capability with VCC = 5V
5.0
TA = 25°C
4.5
DAC CODE = 1023
4.0
3.5
3.0
2.5
2.0
1.5
1.0
DAC CODE = 0
0.5
0
0 1 2 3 4 5 6 7 8 9 10
OUTPUT CURRENT SOURCE/SINK (mA)
1663 G03
Large-Signal Step Response
Midscale Glitch
5
SDA
(VOLTS) 0
5
4
3
VOUT
(VOLTS) 2
1
0
CODE = 990
VCC = 5V
RL = 4.7k
CL = 100pF
TA = 25°C
CODE = 32
5V
SDA
0V
VOUT
10mV/DIV
5μs/DIV
1663 G04
CODE = 512 TO 511
2μs/DIV
VCC = 5V
RL = 4.7k
CL = 100pF
TA = 25°C
1663 G05
4
Load Regulation vs Output Current
1.0
0.8
VCC = VREF = 5V
VOUT = 2.5V
0.6
CODE = 512
TA = 25°C
0.4
0.2
0
–0.2
SOURCE
–0.4
SINK
–0.6
–0.8
–1.0
–4 –3 –2 –1 0 1 2 3 4
IOUT (mA)
1663fd
1663 G06
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