Datasheet Linear Technology LTC2494IUHF#PBF — Даташит

Производитель	Linear Technology
Серия	LTC2494
Модель	LTC2494IUHF#PBF

16-Bit 8-/16-Channel Delta Sigma ADC with PGA and Easy Drive Input Current Cancellation

Datasheets

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PDF, 1.1 Мб, Язык: анг., Файл закачен: 21 авг 2017, Страниц: 38
16-Bit 8-/16-Channel ΔΣ ADC with PGA and Easy Drive Input Current Cancellation

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Цены

Купить LTC2494IUHF#PBF на РадиоЛоцман.Цены — от 307 до 1 523 ₽ 28 предложений от 17 поставщиков LINEAR TECHNOLOGY LTC2494IUHF#PBF Analog to Digital Converter, 16Bit, 15 SPS, Single, 2.7V, 5.5V, QFN
EIS Components Весь мир	LTC2494IUHF#PBF Analog Devices	307 ₽
AiPCBA Весь мир	LTC2494IUHF#TRPBF Linear Technology	351 ₽
Akcel Весь мир	LTC2494IUHF#PBF Analog Devices	от 760 ₽
ЗУМ-СМД Россия	LTC2494IUHF#PBF Linear Technology	по запросу

Выбираем схему BMS для заряда литий-железофосфатных (LiFePO4) аккумуляторов

Корпус / Упаковка / Маркировка

Корпус	5x7 QFN-38
Код корпуса	UHF
Индекс корпуса	05-08-1701

Параметры

ADC INL	0.13 LSB
ADCs	1
Архитектура	Delta Sigma
Bipolar/Unipolar Input	Unipolar
Bits	16 bits
Количество каналов	16
DNL	1 LSB
Demo Boards	DC1011A-C
Экспортный контроль	нет
Основные особенности	No Latency, MUXOUT/ADCIN, Easy Drive, Temp Sensor, 50Hz & 60Hz Rejection
I/O	Serial SPI
INL ppm	2 ppm
Input Drive	Differential, Single-Ended
Input Span	В±0.5VREF/GAIN, 0V to 0.5VREF/GAIN (COM=GND), 0V to VREF/GAIN (COM=VREF/2)
Internal Reference	нет
Рабочий диапазон температур	от -40 до 85 °C
Power	0.48 mW
Simultaneous	нет
Speed	0.015 ksps
Диапазон напряжения питания	2.7V to 5.5V

Экологический статус

RoHS

Совместим

Design Notes

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вЂњEasy DriveвЂќ Delta-Sigma Analog-to-Digital Converters Cancel Input Current Errors &mdash DN368
PDF, 75 Кб, Файл опубликован: 2 июн 2005
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вЂњEasy DriveвЂќ Delta-Sigma Analog-to-Digital Converters
Cancel Input Current Errors вЂ“ Design Note 368
Mike Mayes
Introduction
It is now possible to place large RC networks directly in front of high resolution в€†ОЈ analog-to-digital
converters without degrading their DC accuracy
(see Figure 1). The LTC В®248x family of converters
solves this problem with Easy Driveв„ў technology,
a fully passive sampling network that automatically
cancels the differential input current. Easy Drive
technology does not use on-chip buffers, which
compromise performance (see What is Wrong with
On-Chip Buffers?), but instead uses a new architecture
that maintains 0.002% full-scale error with input RC
networks up to 100kО© and 10ОјF. This new technology
offers many advantages over previous generation в€†ОЈ
ADCs: Rail-to-rail common mode input range Direct digitization of high impedance sensors Elimination of sampling spikes seen at the ADC input
pins Simple external lowpass п¬Ѓltering Noise/power reduction Cancellation of external RC settling errors Easy interface to external ampliп¬Ѓers Removal of transmission line effects for remote
sensors
RSOURCE
SENSOR IDIFF = 0
RSOURCE VIN+
CEXT Easy Drive …
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Easy Drive ADCs Simplify Measurement of High Impedance Sensors &mdash DN379
PDF, 146 Кб, Файл опубликован: 26 окт 2005
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advertisement Easy Driveв„ў ADCs Simplify Measurement of
High Impedance Sensors вЂ“ Design Note 379
Mark Thoren
Delta-sigma ADCs, with their high accuracy and high noise
immunity, are ideal for directly measuring many types
of sensors. Nevertheless, input sampling currents can
overwhelm high source impedances or low-bandwidth,
micropower signal conditioning circuits. The LTCВ®2484
family of delta sigma converters solves this problem by
balancing the input currents, thus simplifying or eliminating the need for signal conditioning circuits.
A common application for a delta-sigma ADC is thermistor
measurement. Figure 1 shows the LTC2484 connections
for direct measurement of thermistors up to 100kО©. Data
I/O is through a standard SPI interface and the sampling
current in each input is approximately:
вЋ› VREF вЋћ
вЋњвЋќ
вЋџ вЂ“ VCM
V + + VINвЂ“
2 вЋ
, where VCM = IN
1.5Mв„¦
2 …

Статьи

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Easy Drive Delta-Sigma ADCs Deliver Powerful Features and Reduce Design Effort &mdash LT Journal
PDF, 346 Кб, Файл опубликован: 28 янв 2008
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LINEAR TECHNOLOGY MArch 2007 IN THIS ISSUEвЂ¦
Cover Article
Easy Drive Delta-Sigma ADCs Deliver
Powerful Features and Reduce Design
Effort.1
Mark Thoren Linear Technology in the NewsвЂ¦.2
Design Features
Current Mode Flyback DC/DC Controller
Provides Tremendous Design Flexibility
.8
Arthur Kelley Isolated Forward Controllers Offer
Buck Simplicity and Performance.10
Charles Hawkes and Arthur Kelley Rugged 3.3V RS485/RS422
Transceivers with Integrated
Switchable Termination.14
Steven Tanghe and Ray Schuler Tiny High Efficiency 2A Buck Regulator
Directly Accepts Automotive, Industrial
and Other Wide Ranging Inputs.18
Kevin Huang 36V Dual 1.4A Monolithic
Step-Down Converter has Start-Up
Tracking and Sequencing.21 VOLUME XVII NUMBER 1 Easy Drive Delta-Sigma
ADCs Deliver Powerful
Features and Reduce …

Модельный ряд

Серия: LTC2494 (4)

LTC2494CUHF#PBF LTC2494CUHF#TRPBF LTC2494IUHF#PBF LTC2494IUHF#TRPBF

Классификация производителя

Data Conversion > Analog-to-Digital Converters (ADC) > Precision ADCs (Fs < 10Msps) > Multi Channel ADCs

Варианты написания:

LTC2494IUHFPBF, LTC2494IUHF PBF