LTC2247 Linear Technology, LTC2247 Datasheet - Page 3

• Manufacturer Part Number: LTC2247
• Description: (LTC2246 - LTC2248) 65/40/25Msps Low Power 3V ADCs
• Manufacturer: Linear Technology

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DY A IC ACCURACY
A ALOG I PUT
otherwise specifications are at T
SYMBOL
V
V
I
I
I
t
t
CMRR
SYMBOL
SNR
SFDR
SFDR
S/(N+D)
I
specifications are at T
IN
SENSE
MODE
AP
JITTER
MD
IN
IN,CM
U
U W
PARAMETER
Signal-to-Noise Ratio
Spurious Free
Dynamic Range
4th Harmonic
or Higher
Signal-to-Noise
Plus Distortion
Ratio
Intermodulation
Distortion
Spurious Free
Dynamic Range
2nd or 3rd
Harmonic
PARAMETER
Analog Input Range (A
Analog Input Common Mode (A
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
U
A
= 25°C. (Note 4)
The
A
CONDITIONS
5MHz Input
12.5MHz Input
20MHz Input
30MHz Input
70MHz Input
140MHz Input
5MHz Input
12.5MHz Input
20MHz Input
30MHz Input
70MHz Input
140MHz Input
5MHz Input
12.5MHz Input
20MHz Input
30MHz Input
70MHz Input
140MHz Input
5MHz Input
12.5MHz Input
20MHz Input
30MHz Input
70MHz Input
140MHz Input
f
f
IN1
IN2
= 25°C. A
●
= 28.2MHz
= 26.8MHz
IN
denotes the specifications which apply over the full operating temperature range, otherwise
+
– A
The
IN
IN
–
IN
)
●
= –1dBFS. (Note 4)
+
+ A
denotes the specifications which apply over the full operating temperature range,
IN
–
)/2
●
●
●
●
●
●
●
●
●
●
●
●
MIN
72.5
76
84
72
CONDITIONS
2.7V < V
Differential Input (Note 7)
Single Ended Input (Note 7)
0V < A
0V < SENSE < 1V
Figure 8 Test Circuit
LTC2248
74.3
74.3
74.3
73.9
74.3
74.2
74.1
71.9
TYP
90
90
85
80
95
95
95
90
90
IN
DD
+
, A
LTC2248/LTC2247/LTC2246
< 3.4V (Note 7)
IN
MAX
–
< V
DD
72.9
72.2
MIN
76
84
LTC2247
74.4
74.4
73.9
73.3
74.4
74.3
73.6
71.9
TYP
90
90
85
80
95
95
95
90
90
MAX
●
●
●
●
●
●
MIN
MIN
72.9
72.2
0.5
–1
–3
–3
76
84
1
±0.5V to ±1V
LTC2246
74.5
74.2
73.4
74.5
74.2
73.4
71.8
TYP
TYP
575
1.5
1.5
0.2
80
73
90
90
85
80
95
95
95
90
90
0
MAX
MAX
1.9
2
1
3
3
224876fa
UNITS
UNITS
ps
3
MHz
RMS
µA
µA
µA
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
V
V
V