LTC1863 LINER [Linear Technology], LTC1863 Datasheet - Page 4

• Manufacturer Part Number: LTC1863
• Description: 12-/16-Bit, 8-Channel 200ksps ADCs
• Manufacturer: LINER [Linear Technology]

POWER REQUIRE E TS
LTC1863/LTC1867
range, otherwise specifications are at T
SYMBOL
V
I
P
range, otherwise specifications are at T
SYMBOL
f
t
t
f
t
t
t
t
t
t
t
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 GND (unless otherwise
noted).
Note 3: When these pin voltages are taken below GND or above V
will be clamped by internal diodes. This product can handle input currents
of greater than 100mA without latchup.
Note 4: When these pin voltages are taken below GND, they will be
clamped by internal diodes. This product can handle input currents of
greater than 100mA below GND without latchup. These pins are not
clamped to V
Note 5: V
V
TI I G CHARACTERISTICS
4
DD
SAMPLE
CONV
ACQ
SCK
1
2
3
4
5
6
7
8
DD
DISS
IN
– = 2.5V for bipolar mode unless otherwise specified.
W
DD
U
= 5V, f
DD
.
SAMPLE
PARAMETER
Supply Voltage
Supply Current
Power Dissipation
PARAMETER
Maximum Sampling Frequency
Conversion Time
Acquisition Time
SCK Frequency
CS/CONV High Time
SDO Valid After SCK
SDO Valid Hold Time After SCK
SDO Valid After CS/CONV
SDI Setup Time Before SCK
SDI Hold Time After SCK
SLEEP Mode Wake-Up Time
Bus Relinquish Time After CS/CONV
= 200ksps at 25 C, t
W U
A
A
r
= 25 C. (Note 5)
= 25 C. (Note 5)
= t
f
= 5ns and
The
The
denotes the specifications which apply over the full operating temperature
CONDITIONS
(Note 9)
f
NAP Mode
SLEEP Mode
CONDITIONS
Short CS/CONV Pulse Mode
C
C
C
C
C
SAMPLE
DD
L
L
L
REFCOMP
L
= 25pF (Note 11)
= 25pF
= 25pF
= 25pF
denotes the specifications which apply over the full operating temperature
, they
= 200ksps
= 10 F, C
Note 6: Linearity, offset and gain error specifications apply for both
unipolar and bipolar modes. The INL and DNL are tested in bipolar mode.
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: Unipolar offset is the offset voltage measured from +1/2LSB
when the output code flickers between 0000 0000 0000 0000 and
0000 0000 0000 0001 for LTC1867 and between 0000 0000 0000 and
0000 0000 0001 for LTC1863. Bipolar offset is the offset voltage
measured from –1/2LSB when output code flickers between 0000 0000
0000 0000 and 1111 1111 1111 1111 for LTC1867, and between
0000 0000 0000 and 1111 1111 1111 for LTC1863.
Note 9: Recommended operating conditions. The input range of 2.048V
for bipolar mode is measured with respect to V
Note 10: Guaranteed by design, not subject to test.
Note 11: t
with 50% duty cycle and f
setup time for the receiving logic).
VREF
= 2.2 F
2
of 25ns maximum allows f
SCK
up to 40MHz for falling capture (with 3ns
LTC1863/LTC1867/LTC1867A
LTC1863/LTC1867/LTC1867A
MIN
4.75
MIN
200
1.5
40
15
10
SCK
5
up to 20MHz for rising capture
IN
TYP
TYP
150
100
1.3
0.2
6.5
1.1
13
11
10
–6
60
20
– = 2.5V.
3
4
MAX
MAX
5.25
1.8
3.5
40
22
30
40
3
9
UNITS
UNITS
18637f
MHz
mW
kHz
mA
ms
ns
ns
ns
ns
ns
ns
ns
V
A
A
s
s