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LTC1286CS8#TR

Description
IC adc 12bit sampl mcrpwr 8soic
CategoryAnalog mixed-signal IC    converter   
File Size285KB,24 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric View All

LTC1286CS8#TR Overview

IC adc 12bit sampl mcrpwr 8soic

LTC1286CS8#TR Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSOIC
package instructionSOP, SOP8,.25
Contacts8
Manufacturer packaging codeS8
Reach Compliance Codenot_compliant
ECCN codeEAR99
Maximum analog input voltage5.05 V
Minimum analog input voltage-0.05 V
Converter typeADC, SUCCESSIVE APPROXIMATION
JESD-30 codeR-PDSO-G8
JESD-609 codee0
length4.9 mm
Maximum linear error (EL)0.0488%
Humidity sensitivity level1
Number of analog input channels1
Number of digits12
Number of functions1
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Output bit codeBINARY
Output formatSERIAL
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)235
power supply4.5/9 V
Certification statusNot Qualified
Sampling rate0.0125 MHz
Sample and hold/Track and holdSAMPLE
Maximum seat height1.75 mm
Maximum slew rate0.5 mA
Nominal supply voltage5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3.9 mm
Base Number Matches1
FEATURES
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s
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LTC1286/LTC1298
Micropower Sampling
12-Bit A/D Converters In
S0-8 Packages
DESCRIPTION
The LTC1286/LTC1298 are micropower, 12-bit, succes-
sive approximation sampling A/D converters. They typi-
cally draw only 250µA of supply current when converting
and automatically power down to a typical supply current
of 1nA whenever they are not performing conversions.
They are packaged in 8-pin SO packages and operate on
5V to 9V supplies. These 12-bit, switched-capacitor, suc-
cessive approximation ADCs include sample-and-holds.
The LTC1286 has a single differential analog input. The
LTC1298 offers a software selectable 2-channel MUX.
On-chip serial ports allow efficient data transfer to a wide
range of microprocessors and microcontrollers over three
wires. This, coupled with micropower consumption, makes
remote location possible and facilitates transmitting data
through isolation barriers.
These circuits can be used in ratiometric applications or
with an external reference. The high impedance analog
inputs and the ability to operate with reduced spans (to
1.5V full scale) allow direct connection to sensors and
transducers in many applications, eliminating the need for
gain stages.
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12-Bit Resolution
8-Pin SOIC Plastic Package
Low Cost
Low Supply Current: 250µA Typ.
Auto Shutdown to 1nA Typ.
Guaranteed
±3/4LSB
Max DNL
Single Supply 5V to 9V Operation
On-Chip Sample-and-Hold
60µs Conversion Time
Sampling Rates:
12.5 ksps (LTC1286)
11.1 ksps (LTC1298)
I/O Compatible with SPI, Microwire, etc.
Differential Inputs (LTC1286)
2-Channel MUX (LTC1298)
3V Versions Available: LTC1285/LTC1288
APPLICATIONS
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Battery-Operated Systems
Remote Data Acquisition
Battery Monitoring
Handheld Terminal Interface
Temperature Measurement
Isolated Data Acquisition
TYPICAL APPLICATIONS
N
25µW, S0-8 Package, 12-Bit ADC
Samples at 200Hz and Runs Off a 5V Supply
4.7µF
5V
Supply Current vs Sample Rate
1000
T
A
= 25°C
V
CC
= V
REF
= 5V
f
CLK
= 200kHz
100
MPU
(e.g., 8051)
1
ANALOG INPUT
0V TO 5V RANGE
2
3
4
V
REF
+IN
–IN
GND
V
CC
LTC1286 CLK
D
OUT
CS/SHDN
8
7
6
5
SERIAL DATA LINK
LTC1286/98 • TA01
P1.4
P1.3
P1.2
SUPPLY CURRENT (µA)
10
1
0.1k
1k
10k
SAMPLE FREQUENCY (Hz)
100k
U
U
U
LTC1286/98 • TA02
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