LTC1272-3ACS 查看數據表（PDF） - Linear Technology
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LTC1272-3ACS Datasheet PDF : 20 Pages
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LTC1272
I TER AL REFERE CE CHARACTERISTICS (Note 4)
PARAMETER
CONDITIONS
VREF Output Voltage (Note 6)
IOUT = 0
VREF Output Tempco
IOUT = 0
q
VREF Line Regulation
4.75V ≤ VDD ≤ 5.25V, IOUT = 0
VREF Load Regulation (Sourcing Current) 0 ≤ IOUT ≤ 1mA
LTC1272-XA
MIN TYP MAX
2.400 2.420 2.440
5
25
0.01
2
LTC1272-XC
MIN TYP MAX
2.400 2.420 2.440
10
45
0.01
2
UNITS
V
ppm/°C
LSB/V
LSB/mA
DIGITAL AND DC ELECTRICAL CHARACTERISTICS (Note 4)
SYMBOL
VIH
VIL
IIN
VOH
VOL
IOZ
COZ
ISOURCE
ISINK
IDD
PD
PARAMETER
High Level Input Voltage CS, RD, HBEN, CLK IN
Low Level Input Voltage CS, RD, HBEN, CLK IN
Input Current CS, RD, HBEN
Input Current CLK IN
High Level Output Voltage All Logic Outputs
Low Level Output Voltage All Logic Outputs
High-Z Output Leakage D11-D0/8
High-Z Output Capacitance (Note 7)
Output Source Current
Output Sink Current
Positive Supply Current
Power Dissipation
CONDITIONS
VDD = 5.25V
VDD = 4.75V
VIN = 0V to VDD
VIN = 0V to VDD
VDD = 4.75V IOUT = – 10µA
IOUT = – 200µA
VDD = 4.75V, IOUT = 1.6mA
VOUT = 0V to VDD
VOUT = 0V
VOUT = VDD
CS = RD = VDD, AIN = 5V
LTC1272-XA/C
MIN TYP MAX
q 2.4
q
0.8
q
±10
q
±20
4.7
q
4.0
q
0.4
q
±10
q
15
– 10
10
q
15
30
75
UNITS
V
V
µA
µA
V
V
V
µA
pF
mA
mA
mA
mW
DY A
SYMBOL
S/(N + D)
THD
IC ACCURACY (Note 4) fSAMPLE = 250kHz (LTC1272-3), 111kHz (LTC1272-8)
PARAMETER
Signal-to-Noise Plus Distortion Ratio
Total Harmonic Distortion (Up to 5th Harmonic)
Peak Harmonic or Spurious Noise
CONDITIONS
10kHz Input Signal
10kHz Input Signal
10kHz Input Signal
LTC1272-XA/C
MIN TYP MAX
72
– 82
– 82
UNITS
dB
dB
dB
A ALOG I PUT (Note 4)
SYMBOL
VIN
IIN
CIN
tACQ
PARAMETER
Input Voltage Range
Input Current
Input Capacitance
Sample-and-Hold Acquisition Time
CONDITIONS
4.75V ≤ VDD ≤ 5.25V
LTC1272-XA/B/C
MIN TYP MAX
q
0
5
q
3.5
50
q
0.45
1
UNITS
V
mA
pF
µs
3
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