LTC2238C Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
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Fabricante
LTC2238C Datasheet PDF : 28 Pages
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LTC2238/LTC2237/LTC2236
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)
SYMBOL PARAMETER
CONDITIONS
LTC2238
LTC2237
LTC2236
MIN TYP MAX MIN TYP MAX MIN TYP MAX
UNITS
VDD
Analog Supply
(Note 9)
Voltage
● 2.7 3 3.4 2.7 3 3.4 2.7 3 3.4
V
OVDD
Output Supply
Voltage
(Note 9)
● 0.5 3 3.6 0.5 3 3.6 0.5 3 3.6
V
IVDD
Supply Current
●
PDISS
Power Dissipation
●
PSHDN
Shutdown Power SHDN = H,
OE = H, No CLK
68.3 80
205 240
2
40 48
120 144
2
25 30
mA
75 90
mW
2
mW
PNAP
Nap Mode Power SHDN = H,
OE = L, No CLK
15
15
15
mW
WU
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)
SYMBOL
fs
tL
tH
tAP
tD
Pipeline
Latency
PARAMETER
CONDITIONS
Sampling Frequency (Note 9)
●
CLK Low Time
Duty Cycle Stabilizer Off ●
Duty Cycle Stabilizer On ●
(Note 7)
CLK High Time
Duty Cycle Stabilizer Off ●
Duty Cycle Stabilizer On ●
(Note 7)
Sample-and-Hold
Aperture Delay
CLK to DATA Delay CL = 5pF (Note 7)
●
Data Access Time CL = 5pF (Note 7)
●
After OE↓
BUS Relinquish Time (Note 7)
●
LTC2238
MIN TYP MAX
1
65
7.3 7.7 500
5 7.7 500
7.3 7.7 500
5 7.7 500
0
1.4 2.7 5.4
4.3 10
3.3 8.5
5
LTC2237
MIN TYP MAX
1
40
11.8 12.5 500
5 12.5 500
11.8 12.5 500
5 12.5 500
0
1.4 2.7 5.4
4.3 10
3.3 8.5
5
LTC2236
MIN TYP MAX
1
25
18.9 20 500
5
20 500
18.9 20 500
5
20 500
0
1.4 2.7 5.4
4.3 10
3.3 8.5
5
UNITS
MHz
ns
ns
ns
ns
ns
ns
ns
ns
Cycles
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 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 (LTC2238), 40MHz (LTC2237), or
25MHz (LTC2236), 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 and 11 1111 1111.
Note 7: Guaranteed by design, not subject to test.
Note 8: VDD = 3V, fSAMPLE = 65MHz (LTC2238), 40MHz (LTC2237), or
25MHz (LTC2236), input range = 1VP-P with differential drive.
Note 9: Recommended operating conditions.
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