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LTC1450LIN Datasheet(PDF) 3 Page - Linear Technology

No. de pieza LTC1450LIN
Descripción Electrónicos  Parallel Input, 12-Bit Rail-to-Rail Micropower DACs in SSOP
PDF  16 Pages
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Fabricante Electrónico  LINER [Linear Technology]
Página de inicio  http://www.linear.com
Logo LINER - Linear Technology

LTC1450LIN Datasheet(HTML) 3 Page - Linear Technology

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LTC1450/LTC1450L
VCC = 4.5V to 5.5V (LTC1450), 2.7V to 5.5V (LTC1450L), VOUT unloaded,
REFOUT = REFHI, REFLO = GND = X1/X2, TA = TMIN to TMAX, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Reference Input (REFLO = GND)
REFHI Input Range
VREFHI ≤ VCC – 1.5V
q
VCC/2
V
REFHI Input Resistance
q
818
30
k
Ω
REFHI Input Capacitance
15
pF
Power Supply
VCC
Positive Supply Voltage
For Specified Performance, LTC1450L
q
2.7
5.5
V
LTC1450
q
4.5
5.5
V
ICC
Supply Current
4.5V
≤ VCC ≤ 5.5V (Note 4) LTC1450
q
300
400
620
µA
2.7V
≤ VCC ≤ 5.5V (Note 4) LTC1450L
q
150
250
500
µA
Op Amp DC Performance
Short-Circuit Current Low
VOUT Shorted to GND
q
100
mA
Short-Circuit Current High
VOUT Shorted to VCC
q
120
mA
Output Impedance to GND
Input Code = 0
q
40
120
Ω
AC Performance
Voltage Output Slew Rate
(Note 2)
q
0.5
1.0
V/
µs
Voltage Output Settling Time
(Notes 2, 3) to
±0.5LSB
14
µs
Digital Feedthrough
LDAC = 1
5
(nV)(s)
AC Feedthrough
REFHI = 1kHz, 2VP–P
–95
dB
SINAD
Signal-to-Noise + Distortion
REFHI = 1kHz, 2VP–P (Code: All 1’s)
85
dB
Digital Inputs
VIH
Digital Input High Voltage
VCC = 3V, LTC1450L
q
2.2
V
VCC = 5V, LTC1450
q
2.4
V
VIL
Digital Input Low Voltage
VCC = 3V, LTC1450L
q
0.8
V
VCC = 5V, LTC1450
q
0.8
V
VLTH
Logic Threshold Voltage
LTC1450L
VCC/2
V
ILEAK
Digital Input Leakage
VCC = 5V, VIN = GND to VCC
q
–10
10
µA
CIN
Digital Input Capacitance
Guaranteed by Design. Not Subject to Test
q
10
pF



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