Electronic Components Datasheet Search |
|
LTC2378CDE-20PBF Datasheet(PDF) 1 Page - Linear Technology |
|
LTC2378CDE-20PBF Datasheet(HTML) 1 Page - Linear Technology |
1 / 28 page LTC2378-20 1 237820f For more information www.linear.com/LTC2378-20 Typical applicaTion FeaTures DescripTion 20-Bit, 1Msps, Low Power SAR ADC with 0.5ppm INL The LTC®2378-20 is a low noise, low power, high speed 20-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2378-20 has a ±VREF fully differential input range with VREF ranging from 2.5V to 5.1V. The LTC2378-20 consumes only 21mW and achieves ±2ppm INL maximum, no missing codes at 20 bits with 104dB SNR. The LTC2378-20 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 1Msps throughput with no cycle latency makes the LTC2378-20 ideally suited for a wide variety of high speed applications. Aninternaloscillatorsetstheconversiontime,easingexter- nal timing considerations. The LTC2378-20 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate. The LTC2378-20 features a unique digital gain compres- sion(DGC)function,whicheliminatesthedriveramplifier’s negative supply while preserving the full resolution of the ADC. When enabled, the ADC performs a digital scaling function that maps zero-scale code from 0V to 0.1 • VREF and full-scale code from VREF to 0.9 • VREF. For a typical reference voltage of 5V, the full-scale input range is now 0.5V to 4.5V, which provides adequate headroom for powering the driving amplifier from a single 5.5V supply. Integral Nonlinearity vs Output Code applicaTions n 1Msps Throughput Rate n ±0.5ppm INL (Typ) n Guaranteed 20-Bit No Missing Codes n Low Power: 21mW at 1Msps, 21µW at 1ksps n 104dB SNR (Typ) at fIN = 2kHz n –125dB THD (Typ) at fIN = 2kHz n Digital Gain Compression (DGC) n Guaranteed Operation to 85°C n 2.5V Supply n Fully Differential Input Range ±VREF n VREF Input Range from 2.5V to 5.1V n No Pipeline Delay, No Cycle Latency n 1.8V to 5V I/O Voltages n SPI-Compatible Serial I/O with Daisy-Chain Mode n Internal Conversion Clock n 16-Lead MSOP and 4mm × 3mm DFN Packages n Medical Imaging n High Speed Data Acquisition n Portable or Compact Instrumentation n Industrial Process Control n Low Power Battery-Operated Instrumentation n ATE OUTPUT CODE 0 262144 524288 786432 1048576 –2.0 0.5 1.0 1.5 0 –0.5 –1.0 –1.5 2.0 237820 TA02 10 VREF 0V VREF 0V 10 3300pF 6800pF 6800pF – + VREF SAMPLE CLOCK 237820 TA01 10µF 0.1µF 2.5V REF 1.8V TO 5V 2.5V TO 5.1V 47µF (X7R, 1210 SIZE) REF GND CHAIN RDL/SDI SDO SCK BUSY CNV REF/DGC LTC2378-20 VDD OVDD IN+ IN– L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Patents Pending. Protected by U.S. Patents, including 7705765, 7961132, 8319673. |
Similar Part No. - LTC2378CDE-20PBF |
|
Similar Description - LTC2378CDE-20PBF |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |