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LTC2312CTS8-12#TRPBF

Description
1-Channel Single ADC SAR 500ksps 12-bit Serial Automotive 8-Pin TSOT-23 T/R
File Size481KB,22 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC2312CTS8-12#TRPBF Overview

1-Channel Single ADC SAR 500ksps 12-bit Serial Automotive 8-Pin TSOT-23 T/R

LTC2312CTS8-12#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Converter TypeGeneral Purpose
ArchitectureSAR
Resolution12bit
Number of ADCs1
Number of Input Channels1
Sampling Rate500ksps
Digital Interface TypeSerial (3-Wire, SPI)
Input TypeVoltage
Input Signal TypeSingle-Ended
Voltage ReferenceInternal|External
Polarity of Input VoltageUnipolar
Voltage Supply SourceSingle
Input Voltage2.048V/4.096V
Minimum Single Supply Voltage (V)2.7
Typical Single Supply Voltage (V)3|5
Maximum Single Supply Voltage (V)5.25
Typical Power Dissipation (mW)17
Maximum Power Dissipation (mW)21.5
Integral Nonlinearity Error±1.5LSB
Full Scale Error±12LSB
Signal to Noise Ratio73dB(Typ)
No Missing Codes (bit)12
Sample and HoldYes
Single-Ended InputYes
Digital Supply SupportNo
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
PackagingTape and Reel
Supplier Temperature GradeCommercial
Pin Count8
Standard Package NameSOT-23
Supplier PackageTSOT-23
MountingSurface Mount
Package Height0.9(Max)
Package Length2.9
Package Width1.75(Max)
PCB changed8
Lead ShapeGull-wing
LTC2312-12
12-Bit, 500ksps Serial
Sampling ADC in TSOT
FeaTures
n
n
n
n
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DescripTion
The
LTC
®
2312-12
is a 12-bit, 500ksps, serial sampling
A/D converter that draws only 3mA from a single 3V or
5V supply. The LTC2312-12 contains an integrated low
drift reference and reference buffer providing a low cost,
high performance (20ppm/°C maximum) and space sav-
ing solution. The LTC2312-12 achieves outstanding AC
performance of 72.7dB SINAD and –84dB THD while
sampling at 500ksps. The extremely high sample rate-to-
power ratio makes the LTC2312-12 ideal for compact, low
power, high speed systems. The supply current decreases
at lower sampling rates as the device automatically enters
nap mode after conversions.
The LTC2312-12 has a high speed SPI-compatible serial
interface that supports 1.8V, 2.5V, 3V and 5V logic. The
fast 500ksps throughput with no-cycle latency makes
the LTC2312-12 ideally suited for a wide variety of high
speed applications.
Complete 14-/12-Bit Pin-Compatible SAR ADC Family
500ksps
14-Bit
12-Bit
2.5Msps
4.5Msps
5Msps
LTC2315-12
LTC2312-14 LTC2313-14 LTC2314-14
LTC2312-12 LTC2313-12
n
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500ksps Throughput Rate
No Cycle Latency
Guaranteed 12-Bit No Missing Codes
Single 3V or 5V Supply
Low Noise: 73dB SNR
Low Power: 8mW at 500ksps and 3V Supply
Low Drift (20ppm/°C Maximum) 2.048V or 4.096V
Internal Reference
Sleep Mode with < 1µA Typical Supply Current
Nap Mode with Quick Wake-Up < 1 Conversion
Separate 1.8V to 5V Digital I/O Supply
High Speed SPI-Compatible Serial I/O
Guaranteed Operation from –40°C to 125°C
8-Lead TSOT-23 Package
applicaTions
n
n
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Communication Systems
High Speed Data Acquisition
Handheld Terminal Interface
Medical Imaging
Uninterrupted Power Supplies
Battery Operated Systems
Automotive
Power 3V/5V 9mW/15mW 14mW/25mW 18mW/31mW 19mW/32mW
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Typical applicaTion
5V Supply, Internal Reference, 500ksps, 12-Bit Sampling ADC
5V
2.2µF
2.2µF
REF
GND
ANALOG INPUT
0V TO 4.096V
A
IN
SCK
SDO
OV
DD
2.2µF
LTC2312-12
AMPLITUDE (dBFS)
V
DD
CONV
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP
OR SHIFT REGISTERS
16k Point FFT, f
S
= 500ksps, f
IN
= 259kHz
0
–20
–40
–60
–80
–100
–120
–140
–160
0
50
100
200
150
INPUT FREQUENCY (kHz)
250
231212
TA01b
V
DD
= 5V
SNR = 73dBFS
SINAD = 72.7dBFS
THD = –84dB
SFDR = 88dB
DIGITAL OUTPUT SUPPLY
1.8V TO 5V
231212 TA01a
231212fa
For more information
www.linear.com/LTC2312-12
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