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LTC1861LCS8#PBF

Description
IC ADC 2CH 12BT 3V 150KSPS 8SOIC
CategoryAnalog mixed-signal IC    converter   
File Size227KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LTC1861LCS8#PBF Overview

IC ADC 2CH 12BT 3V 150KSPS 8SOIC

LTC1861LCS8#PBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
Parts packaging codeSOIC
package instructionSOP, SOP8,.25
Contacts8
Manufacturer packaging codeS8
Reach Compliance Codecompliant
ECCN codeEAR99
Maximum analog input voltage2.7 V
Minimum analog input voltage
Maximum conversion time4.66 µs
Converter typeADC, SUCCESSIVE APPROXIMATION
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.9025 mm
Maximum linear error (EL)0.0244%
Humidity sensitivity level1
Number of analog input channels2
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)260
power supply3/3.3 V
Certification statusNot Qualified
Sampling rate0.15 MHz
Sample and hold/Track and holdSAMPLE
Maximum seat height1.752 mm
Nominal supply voltage2.7 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3.899 mm
Base Number Matches1
LTC1860L/LTC1861L
µPower,
3V, 12-Bit, 150ksps
1- and 2-Channel ADCs in MSOP
FEATURES
s
s
s
s
DESCRIPTIO
s
s
s
s
s
s
12-Bit 150ksps ADCs in MSOP Package
Single 3V Supply
Low Supply Current: 450µA (Typ)
Auto Shutdown Reduces Supply Current
to 10µA at 1ksps
True Differential Inputs
1-Channel (LTC1860L) or 2-Channel (LTC1861L)
Versions
SPI/MICROWIRE
TM
Compatible Serial I/O
High Speed Upgrade to LTC1285/LTC1288
Pin Compatible with 16-Bit LTC1864L/LTC1865L
No Minimum Data Transfer Rate
The LTC
®
1860L/LTC1861L are 12-bit A/D converters that
are offered in MSOP and SO-8 packages and operate on a
single 3V supply. At 150ksps, the supply current is only
450µA. The supply current drops at lower speeds because
the LTC1860L/LTC1861L automatically power down be-
tween conversions. These 12-bit switched capacitor suc-
cessive approximation ADCs include sample-and-holds.
The LTC1860L has a differential analog input with an
external reference pin. The LTC1861L offers a software-
selectable 2-channel MUX and an external reference pin on
the MSOP version.
The 3-wire, serial I/O, MSOP or SO-8 package and
extremely high sample rate-to-power ratio make these
ADCs ideal choices for compact, low power, high speed
systems.
These ADCs can be used in ratiometric applications or with
external references. The high impedance analog inputs
and the ability to operate with reduced spans down to 1V
full scale allow direct connection to signal sources in many
applications, eliminating the need for external gain stages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
MICROWIRE is a trademark of National Semiconductor Corporation.
APPLICATIO S
s
s
s
s
High Speed Data Acquisition
Portable or Compact Instrumentation
Low Power Battery-Operated Instrumentation
Isolated and/or Remote Data Acquisition
TYPICAL APPLICATIO
1µF
Supply Current vs Sampling Frequency
Single 3V Supply, 150ksps, 12-Bit Sampling ADC
1000
CONV LOW = 1.5µs
T
A
= 25°C
V
CC
= 2.7V
LTC1860L
1
2
ANALOG INPUT
0V TO 3V
3
4
V
REF
IN
+
IN
GND
V
CC
SCK
SDO
CONV
8
7
6
5
1860L TA01
SUPPLY CURRENT (µA)
3V
100
10
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP
OR SHIFT REGISTERS
1
0.1
0.01
1
10
0.1
100
SAMPLING FREQUENCY (kHz)
U
1000
1860L/61L TA02
U
U
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