LTC1446IS8 Просмотр технического описания (PDF) - Linear Dimensions Semiconductor
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LTC1446IS8 Datasheet PDF : 12 Pages
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LTC1446/LTC1446L
ELECTRICAL CHARACTERISTICS
The q denotes the specifications which apply over the full operating temperature range. VCC = 4.5V to 5.5V (LTC1446), 2.7V to 5.5V
(LTC1446L), VOUT A and VOUT B unloaded, TA = TMIN to TMAX, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
Op Amp DC Performance
Short-Circuit Current Low
Short-Circuit Current High
Output Impedance to GND
AC Performance
VOUT Shorted to GND
VOUT Shorted to VCC
Input Code = 0
q
55
120
mA
q
70
120
mA
q
40
160
Ω
Voltage Output Slew Rate
Voltage Output Settling Time
(Note 3)
(Notes 3, 4) to ±0.5LSB
q 0.5
1
V/µs
14
µs
The q denotes the specifications which apply over the full operating temperature range.VCC = 5V (LTC1446), VCC = 3V (LTC1446L),
TA = TMIN to TMAX, unless otherwise noted.
SYMBOL
Digital I/O
VIH
VIL
VOH
VOL
ILEAK
CIN
Switching
t1
t2
t3
t4
t5
t6
t7
t8
t9
PARAMETER
CONDITIONS
Digital Input High Voltage
Digital Input Low Voltage
Digital Output High Voltage
Digital Output Low Voltage
Digital Input Leakage
Digital Input Capacitance
IOUT = – 1mA
IOUT = 1mA
VIN = GND to VCC
Guaranteed by Design
DIN Valid to CLK Setup
DIN Valid to CLK Hold
CLK High Time
CLK Low Time
CS/LD Pulse Width
LSB CLK to CS/LD
CS/LD Low to CLK
DOUT Output Delay
CLK Low to CS/LD Low
CLOAD = 15pF
LTC1446
MIN TYP MAX
LTC1446L
MIN TYP MAX UNITS
q 2.4
q
q VCC – 1.0
q
q
q
2
0.8
VCC – 0.7
0.4
± 10
10
V
0.6
V
V
0.4
V
±10
µA
10
pF
q 40
q
0
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 a 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.
Note 5: Digital inputs at 0V or VCC.
3
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