Datasheet

LTC2309
26
2309fd
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
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FAX: [phone]
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www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2008
LT 0710 REV D • PRINTED IN USA
ReLAteD pARts
tYpICAL AppLICAtIOn
PART NUMBER DESCRIPTION COMMENTS
LTC1417 14-Bit, 400ksps Serial ADC 20mW, Unipolar or Bipolar, Internal Reference, SSOP-16 Package
LTC1468/LTC1469 Single/Dual 90MHz, 22V/µs, 16-Bit Accurate
Op Amps
Low Input Offset: 75µV/125µV
LTC1609 16-Bit, 200ksps Serial ADC 65mW, Configurable Bipolar and Unipolar Input Ranges, 5V Supply
LTC1790 Micropower Low Dropout Reference 60µA Supply Current, 10ppm/°C, SOT-23 Package
LTC1850/LTC1851 10-Bit/12-Bit, 8-Channel, 1.25Msps ADCs Parallel Output, Programmable MUX and Sequencer, 5V Supply
LTC1852/LTC1853 10-Bit/12-Bit, 8-Channel, 400ksps ADCs Parallel Output, Programmable MUX and Sequencer, 3V or 5V Supply
LTC1860/LTC1861 12-Bit, 1-/2-Channel 250ksps ADCs in MSOP 850µA at 250ksps, 2µA at 1ksps, SO-8 and MSOP Packages
LTC1860L/LTC1861L 3V, 12-bit, 1-/2-Channel 150ksps ADCs 450µA at 150ksps, 10µA at 1ksps, SO-8 and MSOP Packages
LTC1863/LTC1867 12-/16-Bit, 8-Channel 200ksps ADCs 6.5mW, Unipolar or Bipolar, Internal Reference, SSOP-16 Package
LTC1863L/LTC1867L 3V, 12-/16-bit, 8-Channel 175ksps ADCs 2mW, Unipolar or Bipolar, Internal Reference, SSOP-16 Package
LTC1864/LTC1865 16-Bit, 1-/2-Channel 250ksps ADCs in MSOP 850µA at 250ksps, 2µA at 1ksps, SO-8 and MSOP Packages
LTC1864L/LTC1865L 3V, 16-Bit, 1-/2-Channel 150ksps ADCs in MSOP 450µA at 150ksps, 10µA at 1ksps, SO-8 and MSOP Packages
LTC2302/LTC2306 12-Bit, 1-/2-Channel 500ksps SPI ADCs in
3mm × 3mm DFN
14mW at 500ksps, Single 5V Supply, Software Compatible with LTC2308
LTC2308 12-Bit, 8-Channel 500ksps SPI ADC
5V, Internal Reference, 4mm × 4mm QFN Package, Software Compatible with
LTC2302/LTC2306
LTC2453 Easy-to-Use, Ultratiny 16-Bit I
2
C Delta Sigma ADC
2LSB INL, 50nA Sleep Current, 60Hz Output Rate, 3mm × 2mm DFN Package
LTC2487/LTC2489/
LTC2493
2-/4-Channel Easy Drive™ I
2
C Delta Sigma ADCs
16-/24 Bits, PGA and Temperature Sensor, 15Hz Output Rate, 4mm × 3mm
DFN Packages
LTC2495/LTC2497/
LTC2499
8-/16-Channel Easy Drive I
2
C Delta Sigma ADCs
16-/24-Bits, PGA and Temperature Sensor, 15Hz Output Rate, 5mm × 7mm
QFN Packages
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
2309 TA02
I
2
C
PORT
ANALOG
INPUT
MUX
REFCOMP
CONTROL
LOGIC
(FPGA, CPLD,
DSP, ETC)
INTERNAL
2.5V REF
V
DD
5V
10V
–10V
±10V
INPUT
SIGNAL
GND
LTC2309
0.1µF
12-BIT
SAR ADC
+
–
2.2µF
10µF0.1µF
10µF
1µF
0.1µF
47pF
7
4 5
6
8
1
9
10
100Ω
450k
LT1790-2.5
5V
IN OUT
GND
50k
150k
450k
150k
450k
4pF
V
REF
SDA
SCL
1.7k 1.7k
AD1 AD0
CH0
450k
4pF
3
2
50k
–
+
LT1991
Driving the LTC2309 with ±10V Input Signals Using a Precision Attenuator