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