Datasheet
LTC2225
5
2225fa
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
= 10MHz, 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 0000 0000 0000 and 1111 1111 1111.
Note 7: Guaranteed by design, not subject to test.
Note 8: V
DD
= 3V, f
SAMPLE
= 10MHz, input range = 1V
P-P
with
differential drive.
Note 9: Recommended operating conditions.
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)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
f
s
Sampling Frequency (Note 9) ● 1 10 MHz
t
L
CLK Low Time Duty Cycle Stabilizer Off ● 40 50 500 ns
Duty Cycle Stabilizer On
● 5 50 500 ns
(Note 7)
t
H
CLK High Time Duty Cycle Stabilizer Off ● 40 50 500 ns
Duty Cycle Stabilizer On
● 5 50 500 ns
(Note 7)
t
AP
Sample-and-Hold Aperture Delay 0ns
t
D
CLK to DATA delay C
L
= 5pF (Note 7) ● 1.4 2.7 5.4 ns
Data Access Time After OE↓ C
L
= 5pF (Note 7) ● 4.3 10 ns
BUS Relinquish Time (Note 7) ● 3.3 8.5 ns
Pipeline 5 Cycles
Latency
Typical DNL, 2V RangeTypical INL, 2V Range
8192 Point FFT, f
IN
= 5.1MHz,
–1dB, 2V Range
TYPICAL PERFOR A CE CHARACTERISTICS
UW
CODE
0
–1.0
INL ERROR (LSB)
–0.8
–0.4
–0.2
0
1.0
0.4
1024
2048
2225 G01
–0.6
0.6
0.8
0.2
3072
4096
CODE
0
–1.0
DNL ERROR (LSB)
–0.8
–0.4
–0.2
0
1.0
0.4
1024
2048
2225 G02
–0.6
0.6
0.8
0.2
3072
4096
FREQUENCY (MHz)
0
AMPLITUDE (dB)
–60
–40
–20
0
4
2225 G03
–80
–100
–70
–50
–30
–10
–90
–110
–120
1
2
3
5