LTC1279 Просмотр технического описания (PDF) - Linear Technology
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LTC1279 Datasheet PDF : 16 Pages
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DY A IC ACCURACY (Notes 5, 10)
SYMBOL PARAMETER
CONDITIONS
S/(N + D) Signal-to-Noise Plus Distortion Ratio
100kHz Input Signal
300kHz Input Signal
THD
Total Harmonic Distortion
First 5 Harmonics
100kHz Input Signal
300kHz Input Signal
Peak Harmonic or Spurious Noise
100kHz Input Signal
300kHz Input Signal
IMD
Intermodulation Distortion
fIN1 = 94.189kHz, fIN2 = 97.705kHz
2nd Order Terms
3rd Order Terms
fIN1 = 299.26kHz, fIN2 = 305.12kHz
2nd Order Terms
3rd Order Terms
Full Power Bandwidth
Full Linear Bandwidth (S/(N + D) ≥ 68dB)
UU
U
I TER AL REFERE CE CHARACTERISTICS (Note 5)
PARAMETER
CONDITIONS
VREF Output Voltage
IOUT = 0
VREF Output Tempco
IOUT = 0
VREF Line Regulation
4.95V ≤ VDD ≤ 5.25V
– 5.25V ≤ VSS ≤ – 4.95V
VREF Load Regulation
– 5mA ≤ IOUT ≤ 800µA
U
U
DIGITAL I PUTS A D DIGITAL OUTPUTS (Note 5)
SYMBOL
VIH
VIL
IIN
CIN
VOH
PARAMETER
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
Digital Input Capacitance
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
LTC1279
MIN TYP MAX
q 70 72
70
q
– 82 – 78
– 74
q
– 82 – 78
– 80
– 81
– 78
– 77
– 74
5
500
UNITS
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
MHz
kHz
MIN TYP MAX
2.400 2.420 2.440
q
±10 ±45
0.01
0.01
2
UNITS
V
ppm/°C
LSB/ V
LSB/ V
LSB/mA
MIN TYP MAX
q 2.4
q
0.8
q
±10
5
4.9
q 4.0
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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