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LTC2381IDE-16#PBF

Description
1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin DFN EP Tube
File Size2MB,26 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC2381IDE-16#PBF Overview

1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin DFN EP Tube

LTC2381IDE-16#PBF 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
Resolution16bit
Number of ADCs1
Number of Input Channels1
Sampling Rate250ksps
Digital Interface TypeSerial (SPI)
Input TypeVoltage
Input Signal TypeDifferential
Voltage ReferenceExternal
Polarity of Input VoltageBipolar
Voltage Supply SourceDigital
Input Voltage±2.5V
Typical Power Dissipation (mW)3.25
Maximum Power Dissipation (mW)4.25
Integral Nonlinearity Error±2LSB
Full Scale Error±14LSB
Signal to Noise Ratio92dB(Typ)
No Missing Codes (bit)16
Sample and HoldNo
Single-Ended InputNo
Digital Supply SupportYes
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
PackagingTube
Supplier Temperature GradeIndustrial
Supplier PackageDFN EP
Pin Count16
Standard Package NameDFN
MountingSurface Mount
Package Height0.75(Max)
Package Length4
Package Width3
PCB changed16
Lead ShapeNo Lead
LTC2381-16
16-Bit, 250ksps, Low Power
SAR ADC with Serial Interface
FEATURES
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DESCRIPTION
The
LTC
®
2381-16
is a low noise, low power, high speed
16-bit successive approximation register (SAR) ADC.
Operating from a 2.5V supply, the LTC2381-16 has a
±2.5V fully differential input range. The LTC2381-16
consumes only 3.25mW and achieves ±2LSB INL max,
no missing codes at 16-bits and 92dB SNR.
The LTC2381-16 has a high speed SPI-compatible serial
interface that supports 1.8V, 2.5V, 3.3V and 5V logic
while also featuring a daisy-chain mode. The fast 250ksps
throughput with no cycle latency makes the LTC2381-16
ideally suited for a wide variety of high speed applications.
An internal oscillator sets the conversion time, easing exter-
nal timing considerations. The LTC2381-16 automatically
powers down between conversions, leading to reduced
power dissipation that scales with the sampling rate.
The LTC2381-16 features a proprietary sampling archi-
tecture that enables the ADC to begin acquiring the next
sample during the current conversion. The resulting
extended acquisition time of 3.25µs allows the use of
extremely low power ADC drivers.
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.
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250ksps Throughput Rate
±2LSB INL (Max)
Guaranteed 16-Bit No Missing Codes
Low Power: 3.25mW at 250ksps, 13µW at 1ksps
92dB SNR (Typ) at f
IN
= 20kHz
Extended Acquisition Time of 3.25µs Allows Use of
Lower Power Drivers
Guaranteed Operation to 125°C
2.5V Supply
Fully Differential Input Range ±2.5V
External 2.5V Reference Input
No Pipeline Delay, No Cycle Latency
1.8V to 5V I/O Voltages
SPI-Compatible Serial I/O with Daisy-Chain Mode
Internal Conversion Clock
16-Pin MSOP and 4mm
×
3mm DFN Packages
APPLICATIONS
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Medical Imaging
High Speed Data Acquisition
Portable or Compact Instrumentation
Industrial Process Control
Low Power Battery-Operated Instrumentation
ATE
TYPICAL APPLICATION
2.5V
ANALOG INPUT
0V TO 2.5V
50
LT6350
50
SINGLE-ENDED-
TO-DIFFERENTIAL
DRIVER
100
3300pF
100
IN
REF
2.5V
GND
IN
+
10µF
V
DD
LTC2381-16
OV
DD
1.8V TO 5V
0.1µF
AMPLITUDE (dBFS)
CHAIN
RDL/SDI
SDO
SCK
BUSY
CNV
238116 TA01
32k Point FFT f
S
= 250ksps, f
IN
= 20kHz
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
0
25
50
75
FREQUENCY (kHz)
100
125
SNR = 91.8dB
THD = –106dB
SINAD = 91.6dB
SFDR = 107dB
SAMPLE CLOCK
47µF
(X5R, 0805 SIZE)
238116 TA02a
238116fa
For more information
www.linear.com/LTC2381-16
1

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Description 1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin DFN EP Tube 1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin DFN EP Tube 1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin DFN EP T/R 1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin MSOP Tube 1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin MSOP T/R 1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin MSOP Tube 1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin MSOP T/R 1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin DFN EP T/R 1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin MSOP Tube 1-Channel Single ADC SAR 250ksps 16-bit Serial 16-Pin MSOP T/R
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Compliant Compliant Compliant Compliant Compliant Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Active Active Active Active Active Active Active
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01
Converter Type General Purpose General Purpose General Purpose General Purpose General Purpose General Purpose General Purpose General Purpose General Purpose General Purpose
Architecture SAR SAR SAR SAR SAR SAR SAR SAR SAR SAR
Resolution 16bit 16bit 16bit 16bit 16bit 16bit 16bit 16bit 16bit 16bit
Number of ADCs 1 1 1 1 1 1 1 1 1 1
Number of Input Channels 1 1 1 1 1 1 1 1 1 1
Sampling Rate 250ksps 250ksps 250ksps 250ksps 250ksps 250ksps 250ksps 250ksps 250ksps 250ksps
Digital Interface Type Serial (SPI) Serial (SPI) Serial (SPI) Serial (SPI) Serial (SPI) Serial (SPI) Serial (SPI) Serial (SPI) Serial (SPI) Serial (SPI)
Input Type Voltage Voltage Voltage Voltage Voltage Voltage Voltage Voltage Voltage Voltage
Input Signal Type Differential Differential Differential Differential Differential Differential Differential Differential Differential Differential
Voltage Reference External External External External External External External External External External
Polarity of Input Voltage Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar
Voltage Supply Source Digital Digital Digital Digital Digital Digital Digital Digital Digital Digital
Input Voltage ±2.5V ±2.5V ±2.5V ±2.5V ±2.5V ±2.5V ±2.5V ±2.5V ±2.5V ±2.5V
Typical Power Dissipation (mW) 3.25 3.25 3.25 3.25 3.25 3.25 3.25 3.25 3.25 3.25
Maximum Power Dissipation (mW) 4.25 4.25 4.25 4.25 4.25 4.25 4.25 4.25 4.25 4.25
Integral Nonlinearity Error ±2LSB ±2LSB ±2LSB ±2LSB ±2LSB ±2LSB ±2LSB ±2LSB ±2LSB ±2LSB
Full Scale Error ±14LSB ±14LSB ±14LSB ±14LSB ±14LSB ±14LSB ±14LSB ±14LSB ±14LSB ±14LSB
Signal to Noise Ratio 92dB(Typ) 92dB(Typ) 92dB(Typ) 92dB(Typ) 92dB(Typ) 92dB(Typ) 92dB(Typ) 92dB(Typ) 92dB(Typ) 92dB(Typ)
No Missing Codes (bit) 16 16 16 16 16 16 16 16 16 16
Sample and Hold No No No No No No No No No No
Single-Ended Input No No No No No No No No No No
Digital Supply Support Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Minimum Operating Temperature (°C) -40 - - - - -40 -40 -40 -40 -40
Maximum Operating Temperature (°C) 85 70 70 70 70 125 125 85 85 85
Packaging Tube Tube Tape and Reel Tube Tape and Reel Tube Tape and Reel Tape and Reel Tube Tape and Reel
Supplier Temperature Grade Industrial Commercial Commercial Commercial Commercial Automotive Automotive Industrial Industrial Industrial
Supplier Package DFN EP DFN EP DFN EP MSOP MSOP MSOP MSOP DFN EP MSOP MSOP
Pin Count 16 16 16 16 16 16 16 16 16 16
Standard Package Name DFN DFN DFN MSOP MSOP MSOP MSOP DFN MSOP MSOP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.75(Max) 0.75(Max) 0.75(Max) 0.86 0.86 0.86 0.86 0.75(Max) 0.86 0.86
Package Length 4 4 4 4.04 4.04 4.04 4.04 4 4.04 4.04
Package Width 3 3 3 3 3 3 3 3 3 3
PCB changed 16 16 16 16 16 16 16 16 16 16
Lead Shape No Lead No Lead No Lead Gull-wing Gull-wing Gull-wing Gull-wing No Lead Gull-wing Gull-wing
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