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LTC1403/LTC1403A
3
1403fb
The ● denotes the specications which apply over the full operating temperature range,
otherwise specications are at TA = 25°C. VDD = 3V
DYNAMIC ACCURACY
SYMBOL
PARAMETER
CONDITIONS
LTC1403/LTC1403H
LTC1403A/LTC1403AH
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
SINAD
Signal-to-Noise Plus
Distortion Ratio
100kHz Input Signal
1.4MHz Input Signal
1.4MHz Input Signal (H Grade)
100kHz Input Signal, External VREF = 3.3V,
VDD ≥ 3.3V
750kHz Input Signal, External VREF = 3.3V,
VDD ≥ 3.3V
●
68
67
70.5
72
70
69
73.5
73.0
76.3
dB
THD
Total Harmonic
Distortion
100kHz First 5 Harmonics
1.4MHz First 5 Harmonics
●
–87
–83
–76
–90
–86
–78
dB
SFDR
Spurious Free
Dynamic Range
100kHz Input Signal
1.4MHz Input Signal
–87
–83
–90
–86
dB
IMD
Intermodulation
Distortion
1.25V to 2.5V 1.25MHz into AIN+, 0V to 1.25V,
1.2MHz into AIN–
–82
dB
Code-to-Code
Transition Noise
VREF = 2.5V (Note 18)
0.25
1
LSBRMS
Full Power Bandwidth
VIN = 2.5VP-P, SDO = 11585LSBP-P (Note 15)
50
MHz
Full Linear Bandwidth
S/(N + D) ≥ 68dB
5
MHz
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage
VDD = 3.3V
●
2.4
V
VIL
Low Level Input Voltage
VDD = 2.7V
●
0.6
V
IIN
Digital Input Current
VIN = 0V to VDD
●
±10
μA
CIN
Digital Input Capacitance
5pF
VOH
High Level Output Voltage
VDD = 3V, IOUT = –200μA
●
2.5
2.9
V
VOL
Low Level Output Voltage
VDD = 2.7V, IOUT = 160μA
VDD = 2.7V, IOUT = 1.6mA
●
0.05
0.10
0.4
V
IOZ
Hi-Z Output Leakage DOUT
VOUT = 0V to VDD
●
±10
μA
COZ
Hi-Z Output Capacitance DOUT
1pF
ISOURCE
Output Short-Circuit Source Current
VOUT = 0V, VDD = 3V
20
mA
ISINK
Output Short-Circuit Sink Current
VOUT = VDD = 3V
15
mA
The ● denotes the specications which apply over the full
operating temperature range, otherwise specications are at TA = 25°C. VDD = 3V
DIGITAL INPUTS AND DIGITAL OUTPUTS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VREF Output Voltage
IOUT = 0
2.5
V
VREF Output Tempco
15
ppm//°C
VREF Line Regulation
VDD = 2.7V to 3.6V, VREF = 2.5V
600
μV/V
VREF Output Resistance
Load Current = 0.5mA
0.2
Ω
VREF Settling Time
2ms
The ● denotes the specications which apply over the
full operating temperature range, otherwise specications are at TA = 25°C. VDD = 3V
INTERNAL REFERENCE CHHARACTERISTICS