LTC2250 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC2250' PDF : 24 Pages View PDF
LTC2251/LTC2250
A ALOG I PUT The ● denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Note 4)
SYMBOL
VIN
VIN,CM
IIN
ISENSE
IMODE
tAP
tJITTER
CMRR
PARAMETER
Analog Input Range (AIN+ –AIN–)
Analog Input Common Mode
Analog Input Leakage Current
SENSE Input Leakage
MODE Pin Leakage
Sample-and-Hold Acquisition Delay Time
Sample-and-Hold Acquisition Delay Time Jitter
Analog Input Common Mode Rejection Ratio
Full Power Bandwidth
CONDITIONS
2.85V < VDD < 3.4V (Note 7)
Differential Input (Note 7)
0V < AIN+, AIN– < VDD
0V < SENSE < 1V
Figure 8 Test Circuit
MIN TYP MAX
●
±0.5V to ±1V
● 1 1.5 1.9
● –1
1
● –3
3
● –3
3
0
0.2
80
640
UNITS
V
V
µA
µA
µA
ns
psRMS
dB
MHz
DY A IC ACCURACY The ● denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
LTC2251
LTC2250
MIN TYP MAX MIN TYP MAX
UNITS
SNR
Signal-to-Noise Ratio
5MHz Input
61.6
61.6
dB
30MHz Input
61.6
61.6
dB
70MHz Input
● 60
61.5
60 61.5
dB
140MHz Input
61.4
61.4
dB
SFDR
Spurious Free
Dynamic Range
2nd or 3rd
Harmonic
5MHz Input
30MHz Input
70MHz Input
140MHz Input
85
85
dB
85
85
dB
● 69
82
69 83
dB
77
77
dB
SFDR
Spurious Free
Dynamic Range
4th Harmonic
or Higher
5MHz Input
30MHz Input
70MHz Input
140MHz Input
85
85
dB
85
85
dB
● 75
85
75 85
dB
85
85
dB
S/(N+D)
Signal-to-Noise
Plus Distortion
Ratio
5MHz Input
30MHz Input
70MHz Input
61.5
61.6
dB
61.5
61.6
dB
● 60
61.4
60 61.5
dB
140MHz Input
61.2
61.3
dB
IMD
Intermodulation
Distortion
fIN1 = 28.2MHz,
fIN2 = 26.8MHz
80
80
dB
22510fa
3
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