ltc1411 Linear Technology Corporation, ltc1411 Datasheet - Page 4

• Manufacturer Part Number: ltc1411
• Description: Single Supply 14-bit 2.5msps Adc
• Manufacturer: Linear Technology Corporation

TI I G CHARACTERISTICS
TYPICAL PERFOR A CE CHARACTERISTICS
LTC1411
range, otherwise specifications are T
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 DGND, OGND,
AVM and AGND wired together unless otherwise noted.
Note 3: When these pin voltages are taken below AGND or above V
they will be clamped by internal diodes. This product can handle input
currents greater than 100mA without latchup.
Note 4: When these pin voltages are taken below AGND, they will be
clamped by internal diodes. This product can handle input currents greater
than 100mA below AGND without latchup. These pins are not clamped to
V
Note 5: V
t
Note 6: Linearity, offset and full-scale specifications apply for a single-
ended A
SYMBOL
f
t
t
t
t
t
t
t
t
t
4
SAMPLE(MAX)
CONV
ACQ
0
1
2
3
4
5
6
r
DD
= t
W U
.
62
56
50
44
38
32
26
20
14
86
80
74
68
f
= 5ns unless otherwise specified.
10
S/(N + D) vs Input Frequency
IN
DD
+
input with A
= 5V, PGA1 = PGA0 = 5V, f
INPUT FREQUENCY (kHz)
PARAMETER
Maximum Sampling Frequency
Conversion Time
Acquisition Time
SLP to CONVST Wake-Up Time
NAP to CONVST Wake-Up Time
CONVST Low Time
CONVST to BUSY Delay
Data Ready After BUSY
CONVST High Time
Aperture Delay of Sample-and-Hold
100
IN
–
tied to an external 2.5V reference voltage.
1000
W
SAMPLE
1411 G01
A
U
10000
= 25 C. (Notes 5) (See Figures 11a, 11b)
= 2.5MHz at 25 C and
62
56
50
44
38
32
26
20
14
86
80
74
68
10
Signal-to-Noise Ratio
vs Input Frequency
The
CONDITIONS
(Note 9)
10 F Bypass Capacitor at REFCOM2 Pin
(Note 10)
C
(Note 10)
L
= 25pF
DD
denotes specifications which apply over the full operating temperature
,
INPUT FREQUENCY (kHz)
100
Note 7: 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 8: Bipolar offset is the offset voltage measured from – 0.5LSB
when the output code flickers between 0000 0000 0000 00 and
1111 1111 1111 11.
Note 9: Recommended operating conditions.
Note 10: The falling CONVST edge starts a conversion. If CONVST returns
high at a critical point during the conversion it can create small errors. For
best performance ensure that CONVST returns high within 20ns after
conversion start of after BUSY rises.
Note 11: SLP and NAP have an internal pull-down so the pins will draw
approximately 7 A when tied high and less than 1 A when tied low.
1000
1411 G02
10000
–100
–110
–20
–30
–40
–50
–60
–70
–80
–90
–10
0
10
Distortion vs Input Frequency
MIN
2.5
20
20
2ND
INPUT FREQUENCY (kHz)
100
THD
TYP
250
100
210
250
12
7
7
3RD
1000
MAX
350
1411 G03
UNITS
10000
MHz
1411f
ms
ns
ns
ns
ns
ns
ns
ns
ns