LTC1451 데이터 시트보기 (PDF) - Linear Technology
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LTC1451 Datasheet PDF : 12 Pages
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LTC1451
LTC1452/LTC1453
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V (LTC1451LTC1452), VCC = 3V (LTC1453).
SYMBOL PARAMETER
Digital I/O
VIH
Digital Input High Voltage
VIL
Digital Input Low Voltage
VOH
Digital Output High Voltage
VOL
Digital Output Low Voltage
ILEAK
Digital Input Leakage
CIN
Digital Input Capacitance
Switching
t1
DIN Valid to CLK Setup
t2
DIN Valid to CLK Hold
t3
CLK High Time
t4
CLK Low Time
t5
CS/LD Pulse Width
t6
LSB CLK to CS/LD
t7
CS/LD Low to CLK
t8
DOUT Output Delay
t9
CLK Low to CS/LD Low
CONDITIONS
IOUT = – 1mA
IOUT = 1mA
VIN = GND to VCC
Guaranteed by Design
Not Subject to Test
CLOAD = 15pF
LTC1451/LTC1452
MIN TYP MAX
LTC1453
MIN TYP MAX
q 2.4
2.0
q
0.8
0.6
q VCC – 1.0
VCC – 0.7
q
0.4
0.4
q
±10
±10
q
10
10
UNITS
V
V
V
V
µA
pF
q 40
q0
q 40
q 40
q 50
q 40
q 20
q
q 20
60
0
60
60
80
60
30
150
30
ns
ns
ns
ns
ns
ns
ns
220
ns
ns
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Nonlinearity is defined from the first code that is greater than or
equal to the maximum offset specification to code 4095 (full scale).
Note 3: Load is 5kΩ in parallel with 100pF.
Note 4: DAC switched between all 1s and the code corresponding to VOS
for the part, i.e., LTC1451: code 18; LTC1453: code 30.
Note 5: Digital inputs at 0V or VCC.
TYPICAL PERFOR A CE CHARACTERISTICS
LTC1451 Minimum Supply
Voltage vs Load Current
5.4
∆VOUT < 1LSB
5.2
5.0
4.8
4.6
4.4
4.2
4.0
0.0001 0.001 0.01 0.1 1
LOAD CURRENT (mA)
10 100
1451/2/3 G01
LTC1453 Minimum Supply
Voltage vs Load Current
4.50
4.25 ∆VOUT < 1LSB
4.00
3.75
3.50
3.25
3.00
2.75
2.50
2.25
0.0001 0.001 0.01 0.1 1 10 100
LOAD CURRENT (mA)
1451/2/3 G02
LTC1451
Supply Current vs Temperature
450
440
430
420
VCC = 5.5V
410
400
390
VCC = 4.5V
VCC = 5V
380
370
360
350
–55 –25 5
35 65 95 125
TEMPERATURE (°C)
1451/2/3 G03
4
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