LTC1403 Просмотр технического описания (PDF) - Linear Technology
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LTC1403 Datasheet PDF : 20 Pages
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LTC1403/LTC1403A
DY A IC ACCURACY The q denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. VDD = 3V
SYMBOL PARAMETER
CONDITIONS
SINAD Signal-to-Noise Plus 100kHz Input Signal
Distortion Ratio
1.4MHz Input Signal
q
100kHz Input Signal, External VREF = 3.3V,
VDD ≥ 3.3V
750kHz Input Signal, External VREF = 3.3V,
VDD ≥ 3.3V
THD
Total Harmonic
100kHz First 5 Harmonics
Distortion
1.4MHz First 5 Harmonics
q
SFDR
IMD
Spurious Free
Dynamic Range
Intermodulation
Distortion
Code-to-Code
Transition Noise
100kHz Input Signal
1.4MHz Input Signal
1.25V to 2.5V 1.25MHz into AIN+, 0V to 1.25V,
1.2MHz into AIN–
VREF = 2.5V (Note 18)
Full Power Bandwidth VIN = 2.5VP-P, SDO = 11585LSBP-P (Note 15)
Full Linear Bandwidth S/(N + D) ≥ 68dB
LTC1403
MIN TYP MAX
70.5
68 70.5
72
72
–87
–83 –76
–87
–83
–82
0.25
50
5
LTC1403A
MIN TYP MAX
73.5
70 73.5
76.3
76.3
UNITS
dB
dB
dB
dB
–90
dB
–86 –78
dB
–90
dB
–86
dB
–82
dB
1
LSBRMS
50
MHz
5
MHz
UU
U
I TER AL REFERE CE CHARACTERISTICS The q denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. VDD = 3V
PARAMETER
VREF Output Voltage
VREF Output Tempco
VREF Line Regulation
VREF Output Resistance
VREF Settling Time
CONDITIONS
IOUT = 0
VDD = 2.7V to 3.6V, VREF = 2.5V
Load Current = 0.5mA
MIN TYP MAX
UNITS
2.5
V
15
ppm/°C
600
µV/V
0.2
Ω
2
ms
DIGITAL I PUTS A D DIGITAL OUTPUTS The q denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. VDD = 3V
SYMBOL
VIH
VIL
IIN
CIN
VOH
VOL
PARAMETER
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
Digital Input Capacitance
High Level Output Voltage
Low Level Output Voltage
IOZ
COZ
ISOURCE
ISINK
Hi-Z Output Leakage DOUT
Hi-Z Output Capacitance DOUT
Output Short-Circuit Source Current
Output Short-Circuit Sink Current
CONDITIONS
VDD = 3.3V
VDD = 2.7V
VIN = 0V to VDD
VDD = 3V, IOUT = – 200µA
VDD = 2.7V, IOUT = 160µA
VDD = 2.7V, IOUT = 1.6mA
VOUT = 0V to VDD
VOUT = 0V, VDD = 3V
VOUT = VDD = 3V
MIN TYP MAX
q 2.4
q
0.6
q
± 10
5
q 2.5
2.9
0.05
q
0.10
0.4
q
± 10
1
20
15
UNITS
V
V
µA
pF
V
V
V
µA
pF
mA
mA
1403af
3
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