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LTC2298CUP 数据表(PDF) 5 Page - Linear Technology

部件名 LTC2298CUP
功能描述  Dual 14-Bit, 65/40/25Msps Low Power 3V ADCs
PDF  28 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC2298CUP 数据表(HTML) 5 Page - Linear Technology

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LTC2298/LTC2297/LTC2296
5
229876f
POWER REQUIRE E TS The ● denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 8)
TI I G CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 4)
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
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 VDD, they
will be clamped by internal diodes. This product can handle input currents
of greater than 100mA below GND or above VDD without latchup.
Note 4: VDD = 3V, fSAMPLE = 65MHz (LTC2298), 40MHz (LTC2297), or
25MHz (LTC2296), input range = 2VP-P with differential drive, unless
otherwise noted.
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: VDD = 3V, fSAMPLE = 65MHz (LTC2298), 40MHz (LTC2297), or
25MHz (LTC2296), input range = 1VP-P with differential drive. The supply
current and power dissipation are the sum total for both channels with
both channels active.
Note 9: Recommended operating conditions.
LTC2298
LTC2297
LTC2296
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
VDD
Analog Supply
(Note 9)
●
2.7
3
3.4
2.7
3
3.4
2.7
3
3.4
V
Voltage
OVDD
Output Supply
(Note 9)
●
0.5
3
3.6
0.5
3
3.6
0.5
3
3.6
V
Voltage
IVDD
Supply Current
Both ADCs at fS(MAX)
●
133
150
78
95
50
60
mA
PDISS
Power Dissipation
Both ADCs at fS(MAX)
●
400
450
235
285
150
180
mW
PSHDN
Shutdown Power
SHDN = H,
2
2
2
mW
(Each Channel)
OE = H, No CLK
PNAP
Nap Mode Power
SHDN = H,
15
15
15
mW
(Each Channel)
OE = L, No CLK
LTC2298
LTC2297
LTC2296
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
fs
Sampling Frequency (Note 9)
●
165
1
40
125
MHz
tL
CLK Low Time
Duty Cycle Stabilizer Off
●
7.3
7.7
500
11.8
12.5
500
18.9
20
500
ns
Duty Cycle Stabilizer On
●
5
7.7
500
5
12.5
500
5
20
500
ns
(Note 7)
tH
CLK High Time
Duty Cycle Stabilizer Off
●
7.3
7.7
500
11.8
12.5
500
18.9
20
500
ns
Duty Cycle Stabilizer On
●
5
7.7
500
5
12.5
500
5
20
500
ns
(Note 7)
tAP
Sample-and-Hold
0
0
0
ns
Aperture Delay
tD
CLK to DATA Delay
CL = 5pF (Note 7)
●
1.4
2.7
5.4
1.4
2.7
5.4
1.4
2.7
5.4
ns
tMD
MUX to DATA Delay CL = 5pF (Note 7)
●
1.4
2.7
5.4
1.4
2.7
5.4
1.4
2.7
5.4
ns
Data Access Time
CL = 5pF (Note 7)
●
4.3
10
4.3
10
4.3
10
ns
After OE↓
BUS Relinquish Time (Note 7)
●
3.3
8.5
3.3
8.5
3.3
8.5
ns
Pipeline
6
6
6
Cycles
Latency



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