LTC1287CCN8 Linear Technology, LTC1287CCN8 Datasheet - Page 3

• Manufacturer Part Number: LTC1287CCN8
• Description: IC DATA ACQ SYS 12BIT 3V 8-DIP
• Manufacturer: Linear Technology
• Type: Data Acquisition System (DAS)r

Specifications of LTC1287CCN8

• Resolution (bits): 12 b
• Sampling Rate (per Second): 30k
• Data Interface: Serial, Parallel
• Voltage Supply Source: Single Supply
• Voltage - Supply: 3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AC CHARACTERISTICS
otherwise specifications are at T
SYMBOL
t
t
t
t
t
t
t
t
C
apply over the full operating temperature range, otherwise specifications are 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 (unless otherwise
noted).
Note 3: V
Note 4: One LSB is equal to V
= 2.5V, 1LSB = 2.5V/4096 = 0.61mV.
Note 5: Integral nonlinearity error 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: Recommended operating conditions.
DIGITAL A D
SYMBOL
V
V
I
I
V
V
I
I
I
I
I
hDO
f
r
WHCLK
WLCLK
suCS
WHCS
WLCS
IH
IL
OZ
SOURCE
SINK
CC
REF
IN
IH
IL
OH
OL
CC
= 3V, V
PARAMETER
Time Output Data Remains Valid After CLK
D
D
CLK High Time
CLK Low Time
Setup Time, CS Before CLK
CS High Time Between Data Transfer Cycles
CS Low Time During Data Transfer
Input Capacitance
PARAMETER
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
High Level Output Voltage
Low Level Output Voltage
High Z Output Leakage
Output Source Current
Output Sink Current
Positive Supply Current
Reference Current
OUT
OUT
Fall Time
Rise Time
REF
= 2.5V, CLK = 500kHz unless otherwise specified.
U
REF
DC
divided by 4096. For example, when V
A
= 25 C. (Note 3)
ELECTRICAL C
The
denotes the specifications which apply over the full operating temperature range,
CONDITIONS
See Test Circuits
See Test Circuits
V
V
V
V
V
Analog Inputs On Channel
Analog Inputs Off Channel
Digital Inputs
CONDITIONS
V
V
V
V
V
V
V
V
V
V
CS High
V
CC
CC
CC
CC
CC
CC
CC
IN
IN
CC
CC
OUT
OUT
OUT
OUT
REF
HARA TER STICS
= V
= 0V
= 3V (Note 6)
= 3V (Note 6)
= 3V (Note 6)
= 3V (Note 6)
= 3V (Note 6)
= 3.6V
= 3.0V
= 3.0V, I
= 3.0V, I
= 2.5V
= V
REF
= 0V, CS High
= 0V
= V
CC
CC
CC
, CS High
I
I
O
O
O
O
Note 7: Two on-chip diodes are tied to each analog input which will
conduct for analog voltages one diode drop below GND or one diode drop
above V
inputs can cause this input diode to conduct, especially at elevated
temperature, and cause errors for inputs near full scale. This spec allows
50mV forward bias of either diode. This means that as long as the analog
input does not exceed the supply voltage by more than 50mV, the output
code will be correct.
Note 8: Channel leakage current is measured after the channel selection.
Note 9: Increased leakage currents at elevated temperatures cause the
S/H to droop, therefore it is recommended that f
f
= 20 A
= 400 A
= 20 A
= 400 A
CLK
C
3kHz at 25 C.
CC
. Be careful during testing at low V
I
A
= 25 C. (Note 3)
The
denotes the specifications which
LTC1287B/LTC1287C
MIN
600
800
100
MIN
5.0
LTC1287B/LTC1287C
14
2.1
2.7
TYP
100
2.90
2.85
0.05
0.10
TYP
–10
50
40
40
1.5
CC
10
5
5
9
levels, as high level analog
CLK
MAX
MAX
100
100
0.45
–2.5
2.5
0.3
–3
50
30kHz at 85 C and
3
5
LTC1287
CLK Cycles
UNITS
UNITS
1287fa
3
mA
mA
mA
ns
ns
ns
ns
ns
ns
pF
pF
pF
s
V
V
A
A
V
V
V
V
A
A
A