LTC2247 Linear Technology, LTC2247 Datasheet - Page 5

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

www.datasheet4u.com
range, otherwise specifications are at T
SYMBOL
f
t
t
t
t
Pipeline
Latency
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All voltage values are with respect to ground with GND and OGND
wired together (unless otherwise noted).
Note 3: When these pin voltages are taken below GND or above V
will be clamped by internal diodes. This product can handle input currents
of greater than 100mA below GND or above V
Note 4: V
25MHz (LTC2246), input range = 2V
otherwise noted.
TI I G CHARACTERISTICS
TYPICAL PERFOR A CE CHARACTERISTICS
s
L
H
AP
D
W
DD
U
PARAMETER
Sampling Frequency (Note 9)
CLK Low Time
CLK High Time
Sample-and-Hold
Aperture Delay
CLK to DATA delay
Data Access Time
After OE↓
BUS Relinquish Time (Note 7)
= 3V, f
SAMPLE
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
0
= 65MHz (LTC2248), 40MHz (LTC2247), or
LTC2248: Typical INL,
2V Range, 65Msps
CONDITIONS
Duty Cycle Stabilizer Off
Duty Cycle Stabilizer On
(Note 7)
Duty Cycle Stabilizer Off
Duty Cycle Stabilizer On
(Note 7)
C
C
4096
L
L
P-P
W
= 5pF (Note 7)
= 5pF (Note 7)
with differential drive, unless
U
CODE
8192
A
DD
= 25°C. (Note 4)
without latchup.
12288
The
●
●
●
●
●
●
●
●
2248 G01
16384
●
DD
denotes the specifications which apply over the full operating temperature
MIN
7.3
7.3
1.4
, they
1
5
5
LTC2248
TYP
7.7
7.7
7.7
7.7
2.7
4.3
3.3
0
5
Note 5: Integral nonlinearity is defined as the deviation of a code from a
straight line passing through the actual endpoints of the transfer curve.
The deviation is measured from the center of the quantization band.
Note 6: Offset error is the offset voltage measured from –0.5 LSB when
the output code flickers between 00 0000 0000 0000 and
11 1111 1111 1111.
Note 7: Guaranteed by design, not subject to test.
Note 8: V
25MHz (LTC2246), input range = 1V
Note 9: Recommended operating conditions.
LTC2248/LTC2247/LTC2246
MAX
500
500
500
500
5.4
8.5
65
10
–0.25
–0.50
–0.75
–1.00
1.00
0.75
0.50
0.25
DD
0
0
= 3V, f
LTC2248: Typical DNL,
2V Range, 65Msps
11.8
11.8
MIN
1.4
1
5
5
SAMPLE
LTC2247
4096
12.5
12.5
12.5
12.5
TYP
2.7
4.3
3.3
0
5
= 65MHz (LTC2248), 40MHz (LTC2247), or
CODE
8192
MAX
500
500
500
500
5.4
8.5
40
10
P-P
12288
with differential drive.
18.9
18.9
MIN
1.4
1
5
5
LTC2246
2248 G02
16384
TYP
2.7
4.3
3.3
20
20
20
20
0
5
MAX
500
500
500
500
5.4
8.5
25
10
224876fa
UNITS
Cycles
5
MHz
ns
ns
ns
ns
ns
ns
ns
ns