LTC1416 Linear Technology, LTC1416 Datasheet - Page 4

• Manufacturer Part Number: LTC1416
• Description: Low Power 14-Bit/ 400ksps Sampling ADC
• Manufacturer: Linear Technology

TI I G CHARACTERISTICS
LTC1416
POWER REQUIRE E TS
P
SYMBOL
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
The
temperature range; all other limits and typicals at 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 and
AGND wired together unless otherwise noted.
Note 3: When these pin voltages are taken below V
will be clamped by internal diodes. This product can handle input currents
greater than 100mA below V
Note 4: When these pin voltages are taken below V
by internal diodes. This product can handle input currents greater than
100mA below V
Note 5: V
otherwise specified.
SYMBOL
4
SAMPLE(MAX)
CONV
ACQ
ACQ+CONV
1
2
3
4
5
6
7
8
9
10
11
12
13
DISS
W U
denotes specifications which apply over the full operating
DD
= 5V, V
SS
PARAMETER
Power Dissipation
Power Dissipation, Nap Mode
Power Dissipation, Sleep Mode
PARAMETER
Maximum Sampling Frequency
Conversion Time
Acquisition Time
Acquisition + Conversion Time
CS to RD Setup Time
CS to CONVST Setup Time
CS to SHDN Setup Time
SHDN to CONVST Wake-Up Time
CONVST Low Time
CONVST to BUSY Delay
Data Ready Before BUSY
Delay Between Conversions
Wait Time RD After BUSY
Data Access Time After RD
Bus Relinquish Time
RD Low Time
CONVST High Time
without latchup. These pins are not clamped to V
SS
= – 5V, f
SS
SAMPLE
or above V
W U
= 400kHz, t
DD
without latchup.
r
A
SS
SS
= t
= 25 C.
, they will be clamped
or above V
f
= 5ns unless
(Note 5)
SHDN = 0V, CS = 0V
SHDN = 0V, CS = 5V
CONDITIONS
(Note 9)
(Notes 9, 10)
(Notes 9, 10)
(Notes 9, 10)
(Note 10)
(Notes 10, 11)
C
(Note 10)
C
C
0 C T
– 40 C T
CONDITIONS
L
L
L
(Note 5, see Figures 15 to 21)
= 25pF
= 25pF
= 100pF
DD
, they
DD
A
.
A
70 C
85 C
Note 6: Linearity, offset and full-scale specifications apply for a single-
ended A
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: Guaranteed by design, not subject to test.
Note 10: Recommended operating conditions.
Note 11: 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 results ensure that CONVST returns high either within 900ns after the
start of the conversion or after BUSY rises.
IN
+
input with A
IN
–
grounded.
MIN
400
1.5
– 5
t
10
10
40
75
50
40
40
0
MIN
10
TYP
TYP
100
400
100
0.1
1.9
70
25
15
20
4
2
8
MAX
MAX
400
100
2.2
2.5
50
25
35
35
50
20
25
30
6
UNITS
UNITS
mW
mW
mW
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s