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LTC1860IS8-PBF 数据表(PDF) 1 Page - Linear Technology

部件名 LTC1860IS8-PBF
功能描述  Î¼Power, 12-Bit, 250ksps 1- and 2-Channel ADCs in MSOP
Download  16 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC1860IS8-PBF 数据表(HTML) 1 Page - Linear Technology

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LTC1860/LTC1861
1
18601fa
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
µPower, 12-Bit, 250ksps
1- and 2-Channel ADCs in MSOP
The LTC®1860/LTC1861 are 12-bit A/D converters that are
offered in MSOP and SO-8 packages and operate on a single
5V supply. At 250ksps, the supply current is only 850μA.
The supply current drops at lower speeds because the
LTC1860/LTC1861 automatically power down to a typical
supply current of 1nA between conversions. These 12-bit
switched capacitor successive approximation ADCs include
sample-and-holds. The LTC1860 has a differential analog
input with an adjustable reference pin. The LTC1861 offers
a software-selectable 2-channel MUX and an adjustable
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 in-
puts 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.
Single 5V Supply, 250ksps, 12-Bit Sampling ADC
n 12-Bit 250ksps ADCs in MSOP Package
n Single 5V Supply
n Low Supply Current: 850μA (Typ)
n Auto Shutdown Reduces Supply Current
to 2μA at 1ksps
n True Differential Inputs
n 1-Channel (LTC1860) or 2-Channel (LTC1861)
Versions
n SPI/MICROWIRETM Compatible Serial I/O
n High Speed Upgrade to LTC1286/LTC1298
n Pin Compatible with 16-Bit LTC1864/LTC1865
n Guaranteed Operation to 125°C (MSOP Package)
n High Speed Data Acquisition
n Portable or Compact Instrumentation
n Low Power Battery-Operated Instrumentation
n Isolated and/or Remote Data Acquisition
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Supply Current vs Sampling Frequency
1
2
3
4
8
7
6
5
VREF
IN+
IN
GND
VCC
SCK
SDO
CONV
LTC1860
1860 TA01
ANALOG INPUT
0V TO 5V
5V
1 F
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP
OR SHIFT REGISTERS
SAMPLING FREQUENCY (kHz)
0.01
1000
100
10
1
0.1
0.01
100
1860 TA02
0.1
1
10
1000


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