LTC2193 Просмотр технического описания (PDF) - Linear Technology
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LTC2193 Datasheet PDF : 28 Pages
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LTC2195
LTC2194/LTC2193
DYNAMIC ACCURACY The l denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 5)
SYMBOL PARAMETER
CONDITIONS
LTC2195
LTC2194
LTC2193
MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SNR
Signal-to-Noise Ratio
5MHz Input
76.8
76.7
77.1
dBFS
70MHz Input
l 74.5 76.6
74.8 76.5
75.1 76.9
dBFS
140MHz Input
76.1
76
76.4
dBFS
SFDR Spurious Free Dynamic Range 5MHz Input
90
90
90
dBFS
2nd Harmonic
70MHz Input
l 79 89
81 89
81 89
dBFS
140MHz Input
84
84
84
dBFS
Spurious Free Dynamic Range 5MHz Input
90
90
90
dBFS
3rd Harmonic
70MHz Input
l 81 89
81 89
82 89
dBFS
140MHz Input
84
84
84
dBFS
Spurious Free Dynamic Range 5MHz Input
95
95
95
dBFS
4th Harmonic or Higher
70MHz Input
l 88 95
89 95
89 95
dBFS
140MHz Input
95
95
95
dBFS
S/(N+D) Signal-to-Noise Plus
5MHz Input
76.6
76.5
76.9
dBFS
Distortion Ratio
70MHz Input
l 73.3 76.2
74 76.1
74.4 76.5
dBFS
140MHz Input
75.1
75
75.3
dBFS
Crosstalk
10MHz Input
–110
–110
–110
dBc
INTERNAL REFERENCE CHARACTERISTICS The l denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at TA = 25°C. (Note 5)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCM Output Voltage
VCM Output Temperature Drift
VCM Output Resistance
VREF Output Voltage
VREF Output Temperature Drift
VREF Output Resistance
VREF Line Regulation
IOUT = 0
–600µA < IOUT < 1mA
IOUT = 0
–400µA < IOUT < 1mA
1.7V < VDD < 1.9V
0.5 • VDD – 25mV
1.225
0.5 • VDD
±25
4
1.250
±25
7
0.6
0.5 • VDD + 25mV
1.275
V
ppm/°C
Ω
V
ppm/°C
Ω
mV/V
DIGITAL INPUTS AND OUTPUTS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 5)
SYMBOL PARAMETER
ENCODE INPUTS (ENC+, ENC–)
CONDITIONS
MIN
TYP
MAX
UNITS
Differential Encode Mode (ENC– Not Tied to GND)
VID
Differential Input Voltage
VICM
Common Mode Input Voltage
(Note 8)
Internally Set
Externally Set (Note 8)
l
0.2
V
1.2
V
l
1.1
1.6
V
VIN
Input Voltage Range
RIN
Input Resistance
CIN
Input Capacitance
ENC+, ENC– to GND (Note 8)
See Figure 10
(Note 8)
l
0.2
3.6
V
10
kΩ
3.5
pF
219543f
4
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