LTC1278 Просмотр технического описания (PDF) - Linear Technology
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LTC1278 Datasheet PDF : 16 Pages
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LTC1278
DY A IC ACCURACY (Note 5)
SYMBOL
S/(N + D)
THD
IMD
PARAMETER
Signal-to-Noise Plus Distortion Ratio
Total Harmonic Distortion
First 5 Harmonics
Peak Harmonic or Spurious Noise
Intermodulation Distortion
Full Power Bandwidth
Full Linear Bandwidth (S/(N + D) ≥ 68dB)
CONDITIONS
100kHz Input Signal
250kHz Input Signal
100kHz Input Signal
250kHz Input Signal
100kHz Input Signal
250kHz Input Signal
fIN1 = 99.37kHz, fIN2 = 102.4kHz
fIN1 = 249.37kHz, fIN2 = 252.4kHz
LTC1278-4/LTC1278-5
MIN TYP MAX
UNITS
q 70
72
dB
70
dB
q
– 80 – 78
dB
– 74
dB
q
– 84 – 78
dB
– 74
dB
– 82
dB
– 70
dB
4
MHz
350
kHz
UU
U
I TER AL REFERE CE CHARACTERISTICS (Note 5)
PARAMETER
VREF Output Voltage
VREF Output Tempco
VREF Line Regulation
VREF Load Regulation
CONDITIONS
IOUT = 0
IOUT = 0
4.95V ≤ VDD ≤ 5.25V
– 5.25V ≤ VSS ≤ – 4.95V
0V ≤ |IOUT| ≤ 1mA
LTC1278-4/LTC1278-5
MIN
TYP
MAX
UNITS
2.400 2.420 2.440
V
q
±10
±45 ppm/°C
0.01
LSB/ V
0.01
LSB/ V
2
LSB/mA
U
U
DIGITAL I PUTS A D DIGITAL OUTPUTS (Note 5)
SYMBOL PARAMETER
VIH
High Level Input Voltage
VIL
Low Level Input Voltage
IIN
Digital Input Current
CIN
Digital Input Capacitance
VOH
High Level Output Voltage
VOL
Low Level Output Voltage
IOZ
COZ
ISOURCE
ISINK
High Z Output Leakage D11 to D0
High Z Output Capacitance D11 to D0
Output Source Current
Output Sink Current
CONDITIONS
VDD = 5.25V
VDD = 4.95V
VIN = 0V to VDD
VDD = 4.95V
IO = – 10µA
IO = – 200µA
VDD = 4.95V
IO = 160µA
IO = 1.6mA
VOUT = 0V to VDD, CS High
CS High (Note 9 )
VOUT = 0V
VOUT = VDD
LTC1278-4/LTC1278-5
MIN TYP MAX
q 2.4
q
0.8
q
±10
5
4.7
q
4
0.05
q
0.10 0.4
q
±10
q
15
– 10
10
UNITS
V
V
µA
pF
V
V
V
V
µA
pF
mA
mA
3
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