Datasheet

LTC2298/LTC2297/LTC2296
5
229876fa
POWER REQUIRE E TS
WU
The ● denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 8)
TI I G CHARACTERISTICS
UW
The ● denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 4)
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
DD
, they
will be clamped by internal diodes. This product can handle input currents
of greater than 100mA below GND or above V
DD
without latchup.
Note 4: V
DD
= 3V, f
SAMPLE
= 65MHz (LTC2298), 40MHz (LTC2297), or
25MHz (LTC2296), input range = 2V
P-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: V
DD
= 3V, f
SAMPLE
= 65MHz (LTC2298), 40MHz (LTC2297), or
25MHz (LTC2296), input range = 1V
P-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
V
DD
Analog Supply (Note 9) ● 2.7 3 3.4 2.7 3 3.4 2.7 3 3.4 V
Voltage
OV
DD
Output Supply (Note 9) ● 0.5 3 3.6 0.5 3 3.6 0.5 3 3.6 V
Voltage
IV
DD
Supply Current Both ADCs at f
S(MAX)
● 133 150 78 95 50 60 mA
P
DISS
Power Dissipation Both ADCs at f
S(MAX)
● 400 450 235 285 150 180 mW
P
SHDN
Shutdown Power SHDN = H, 2 2 2 mW
(Each Channel) OE = H, No CLK
P
NAP
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
f
s
Sampling Frequency (Note 9) ● 165140125MHz
t
L
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)
t
H
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)
t
AP
Sample-and-Hold 0 0 0 ns
Aperture Delay
t
D
CLK to DATA Delay C
L
= 5pF (Note 7) ● 1.4 2.7 5.4 1.4 2.7 5.4 1.4 2.7 5.4 ns
t
MD
MUX to DATA Delay C
L
= 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 C
L
= 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 5 5 5 Cycles
Latency