LTC1450IG データシートの表示（PDF） - Linear Technology
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LTC1450IG Datasheet PDF : 16 Pages
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LTC1450/LTC1450L
ELECTRICAL CHARACTERISTICS 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.
SYMBOL PARAMETER
Reference Input (REFLO = GND)
REFHI Input Range
REFHI Input Resistance
REFHI Input Capacitance
Power Supply
VCC
Positive Supply Voltage
ICC
Supply Current
Op Amp DC Performance
Short-Circuit Current Low
Short-Circuit Current High
Output Impedance to GND
AC Performance
Voltage Output Slew Rate
Voltage Output Settling Time
Digital Feedthrough
AC Feedthrough
SINAD Signal-to-Noise + Distortion
Digital Inputs
VIH
Digital Input High Voltage
VIL
Digital Input Low Voltage
VLTH Logic Threshold Voltage
ILEAK Digital Input Leakage
CIN
Digital Input Capacitance
CONDITIONS
VREFHI ≤ VCC – 1.5V
For Specified Performance, LTC1450L
LTC1450
4.5V ≤ VCC ≤ 5.5V (Note 4) LTC1450
2.7V ≤ VCC ≤ 5.5V (Note 4) LTC1450L
VOUT Shorted to GND
VOUT Shorted to VCC
Input Code = 0
(Note 2)
(Notes 2, 3) to ±0.5LSB
LDAC = 1
REFHI = 1kHz, 2VP–P
REFHI = 1kHz, 2VP–P (Code: All 1’s)
VCC = 3V, LTC1450L
VCC = 5V, LTC1450
VCC = 3V, LTC1450L
VCC = 5V, LTC1450
LTC1450L
VCC = 5V, VIN = GND to VCC
Guaranteed by Design. Not Subject to Test
MIN TYP MAX UNITS
q
VCC / 2
V
q8
18
30
kΩ
15
pF
q 2.7
q 4.5
5.5
V
5.5
V
q 300 400 620
µA
q 150 250 500
µA
q
100
mA
q
120
mA
q
40 120
Ω
q 0.5 1.0
14
5
– 95
85
V/µs
µs
(nV)(s)
dB
dB
q 2.2
V
q 2.4
V
q
0.8
V
q
0.8
V
VCC/2
V
q – 10
10
µA
q
10
pF
3
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