LTC1426IS8 查看數據表（PDF） - Linear Technology
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LTC1426IS8 Datasheet PDF : 8 Pages
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LTC1426
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Total Supply Voltage (VCC) ........................................ 7V
Reference Voltage (VREF) ............................... – 0.3 to 7V
Input Voltage (All Inputs) .............. – 0.3 to (VCC + 0.3V)
DAC Output Short-Circuit Duration.................. Indefinite
IPWM(MAX) .......................................................... 100mA
Operating Temperature Range
LTC1426C................................................ 0°C to 70°C
LTC1426I........................................... – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
TOP VIEW
CLK1 1
CLK2 2
GND 3
PWM1 4
8 SHDN
7 VCC
6 VREF
5 PWM2
MS8 PACKAGE
S8 PACKAGE
8-LEAD PLASTIC MSOP 8-LEAD PLASTIC SO
ORDER PART
NUMBER
LTC1426CMS8
LTC1426CS8
LTC1426IS8
MS8 PART MARKING
LTBQ
TJMAX = 100°C, θJA = 200°C/ W (MS8)
TJMAX = 100°C, θJA = 130°C/ W (S8)
S8 PART MARKING
1426
1426I
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS TA = 25°C, (Note 2) unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
MIN
VCC
Supply Voltage
VREF
Reference Voltage
ICC
Supply Current
q 2.7
q0
Pulse Mode: VSHDN = VCC, VCLK1 = VCLK2 = 0V, PWM1 = PWM2 = NC q
Pushbutton Mode: VSHDN = VCC, VCLK1 = VCLK2 = PWM1 = PWM2 = NC q
SHDN = 0 (Note 3)
q
IREF
Reference Current
Pulse Mode: VSHDN = VCC, VCLK1 = VCLK2 = 0V, PWM1 = PWM2 = NC q
Pushbutton Mode: VSHDN = VCC, VCLK1 = VCLK2 = PWM1 = PWM2 = NC q
SHDN = 0 (Note 3)
q
DAC Resolution
DAC Frequency
DAC Output Impedance
DAC Full-Scale Duty Cycle
0°C ≤ TA ≤ 70°C
– 40°C ≤ TA ≤ 85°C
VCC = 2.7V, VREF = 0.5V
q3
q2
q
DAC Zero-Scale Duty Cycle
DNL
DAC Differential Nonlinearity Monotonicity Guaranteed (Note 4)
q
INL
DAC Integral Nonlinearity (Note 4)
q
FS Error DAC Full-Scale Error
q
IIN
Logic Input Current
Pulse Mode: 0V ≤ VIN ≤ VCC
SHDN
q
CLK1, CLK2
q
Pushbutton Mode: 0V ≤ VIN ≤ VCC
SHDN
q
CLK1, CLK2
q
VIH
CLK High Level
Input Voltage (Note 5)
VCC = 5.5V
SHDN
CLK1, CLK2
q 2.0
q 4.4
VCC = 3.6V
SHDN
CLK1, CLK2
q 1.9
q 2.9
TYP
40
50
0.2
75
75
0.2
6
5
5
20
98.44
0
MAX
5.5
5.5
100
100
±10
150
150
±10
6
6
100
±0.05
±0.05
±0.50
±5
±5
±5
±10
UNITS
V
V
µA
µA
µA
µA
µA
µA
bits
kHz
kHz
Ω
%
%
LSB
LSB
LSB
µA
µA
µA
µA
V
V
V
V
2
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