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LTC1864L Datasheet(PDF) 1 Page - Linear Technology

Part No. LTC1864L
Description  μPower, 3V, 16-Bit, 150ksps 1- and 2-Channel ADCs in MSOP
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LTC1864L Datasheet(HTML) 1 Page - Linear Technology

 
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LTC1864L/LTC1865L
sn18645L 18645Lfs
APPLICATIO S
FEATURES
DESCRIPTIO
TYPICAL APPLICATIO
µPower, 3V, 16-Bit, 150ksps
1- and 2-Channel ADCs in MSOP
Single 3V Supply, 150ksps, 16-Bit Sampling ADC
Supply Current vs Sampling Frequency
The LTC
®1864L/LTC1865L are 16-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 LTC1864L/LTC1865L automatically power down
between conversions. These 16-bit switched capacitor
successive approximation ADCs include sample-and-holds.
The LTC1864L has a differential analog input with an
external reference pin. The LTC1865L offers a software-
selectable 2-channel MUX and an external reference pin on
the MSOP version.
The 3-wire, serial I/O, small 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.
16-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 (LTC1864L) or 2-Channel (LTC1865L)
Versions
SPI/MICROWIRE
TM Compatible Serial I/O
16-Bit Upgrade to 12-Bit LTC1285/LTC1288
Pin Compatible with 12-Bit LTC1860L/LTC1861L
No Minimum Data Transfer Rate
, LTC and LT are registered trademarks of Linear Technology Corporation.
High Speed Data Acquisition
Portable or Compact Instrumentation
Low Power Battery-Operated Instrumentation
Isolated and/or Remote Data Acquisition
1
2
3
4
8
7
6
5
VREF
IN+
IN
GND
VCC
SCK
SDO
CONV
LTC1864L
1864 TA01
ANALOG INPUT
0V TO 3V
3V
1µF
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP
OR SHIFT REGISTERS
MICROWIRE is a trademark of National Semiconductor Corporation.
SAMPLING FREQUENCY (kHz)
0.1
1
10
100
1000
0.01
1
10
1000
1864L/65L TA02
0.1
100
CONV LOW = 2µs
TA = 25°C
VCC = 2.7V


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