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Datasheet Linear Technology LTC1294

ManufacturerLinear Technology
SeriesLTC1294

Single Chip 12-Bit Data Acquisition System

Datasheets

  • Download » Datasheet PDF, 398 Kb, Revision: S, File uploaded: Aug 16, 2017
    LTC1293/LTC1294/LTC1296 - Single Chip 12-Bit Data Acquisition System
    Docket ↓
    LTC1293/LTC1294/LTC1296
    Single Chip 12-Bit
    Data Acquisition System
    U DESCRIPTIO FEATURES
    в–  в– 
    в– 
    в– 
    в– 
    в–  Software Programmable Features
    Unipolar/Bipolar Conversion
    Differential/Single Ended Inputs
    MSB-First or MSB/LSB Data Sequence
    Power Shutdown
    Built-In Sample and Hold
    Single Supply 5V or В±5V Operation
    Direct 4-Wire Interface to Most MPU Serial
    Ports and All MPU Parallel Ports
    46.5kHz Maximum Throughput Rate
    System Shutdown Output (LTC1296) The LTC1293/4/6 is a family of data acquisition systems
    which contain a serial I/O successive approximation A/D
    converter. It uses LTCMOSTM switched capacitor technology to perform either 12-bit unipolar, or 11-bit plus sign
    bipolar A/D conversions. The input multiplexer can be
    configured for either single ended or differential inputs (or ...

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Packaging

Parametrics

LTC1294BCN#PBFLTC1294BCSW#PBFLTC1294BCSW#TRPBFLTC1294CCN#PBFLTC1294CCSW#PBFLTC1294CCSW#TRPBFLTC1294DCN#PBFLTC1294DCSW#PBFLTC1294DCSW#TRPBF
ADC INL, LSB0.50.50.50.50.50.50.50.50.5
ADCs111111111
ArchitectureSARSARSARSARSARSARSARSARSAR
Bipolar/Unipolar InputUnipolar, Bipolar, True BipolarUnipolar, Bipolar, True BipolarUnipolar, Bipolar, True BipolarUnipolar, Bipolar, True BipolarUnipolar, Bipolar, True BipolarUnipolar, Bipolar, True BipolarUnipolar, Bipolar, True BipolarUnipolar, Bipolar, True BipolarUnipolar, Bipolar, True Bipolar
Bits, bits121212121212121212
Number of Channels888888888
DNL, LSB111111111
Export Controlnonononononononono
I/OSerial SPISerial SPISerial SPISerial SPISerial SPISerial SPISerial SPISerial SPISerial SPI
Input DrivePseudo-Differential, Single-EndedPseudo-Differential, Single-EndedPseudo-Differential, Single-EndedPseudo-Differential, Single-EndedPseudo-Differential, Single-EndedPseudo-Differential, Single-EndedPseudo-Differential, Single-EndedPseudo-Differential, Single-EndedPseudo-Differential, Single-Ended
Input Span0V to 5V, В±5V0V to 5V, В±5V0V to 5V, В±5V0V to 5V, В±5V0V to 5V, В±5V0V to 5V, В±5V0V to 5V, В±5V0V to 5V, В±5V0V to 5V, В±5V
Internal Referencenonononononononono
Operating Temperature Range, °C0 to 700 to 700 to 700 to 700 to 700 to 700 to 700 to 700 to 70
Power, mW303030303030303030
SINAD, dB72.772.772.772.772.772.772.772.772.7
Simultaneousnonononononononono
Speed, ksps464646464646464646
Supply Voltage Range5V, В±5V5V, В±5V5V, В±5V5V, В±5V5V, В±5V5V, В±5V5V, В±5V5V, В±5V5V, В±5V

Eco Plan

Other Options

LTC1293 LTC1296

Application Notes

  • Download » Application Notes - AN62 PDF, 349 Kb, File published: Oct 1, 1994
    Data Acquisition Circuit Collection
    This application note presents a wide variety of data acquisition circuits. The detailed circuit schematics cover 8-, 10-, and 12- bit ADC and DAC applications, serial and parallel digital interfaces, battery monitoring, temperature sensing, isolated interfaces, and connections to various popular microprocessors and microcontrollers. An appendix covers suggested voltage references.
    Docket ↓
    Application Note 62
    October 1994
    Data Acquisition Circuit Collection
    Kevin R. Hoskins
    INTRODUCTION
    This application note features 8-, 10-, and 12-bit data
    acquisition components in various circuit configurations.
    The circuits include battery monitoring, temperature sensing, isolated serial interfaces, and microprocessor and
    microcontroller serial and parallel interfaces. Also included are voltage reference circuits (Application Note 42
    contains more voltage reference circuits). Additional circuit information is located in the information
    references listed in the Circuit Index. Each information
    reference refers to either an application note (example:
    AN42 = Application Note 42), a data sheet (example:
    LTCВ®1292 DS = LTC1292 Data Sheet), or a design note
    (example: DN66 = Design Note 66).
    and LTC are registered trademarks and LT is a trademark of Linear Technology Corporation. CIRCUIT INDEX
    FIGURE TITLE
    FIGURE NO.
    General Analog-to-Digital Application Circuits
    Two-Quadrant 150kHz Bandwidth Analog Multiplier . Figure 1 .
    Infinite Hold-Time Sample-and-Hold (tACQ = 240ns) . Figure 2 .
    Four-Quadrant 250kHz Bandwidth Analog Multiplier . Figure 3 .
    Demodulating a Signal Using Undersampling . Figure 4 . ...

Design Notes

  • Download » Design Notes - DN22 PDF, 240 Kb, File published: May 1, 1989
    New 12-Bit Data Acquisition Systems Communicate with Microprocessors Over 4 Wires
    Docket ↓
    New 12-Bit Data Acquisition Systems Communicate with
    Microprocessors Over 4 Wires – Design Note 22
    As board space and semiconductor package pins become
    more valuable, serial data transfer methods between
    microprocessors (MPUs) and their peripherals become
    more and more attractive. Not only does this save lines
    in the transmission medium, but, because of the savings
    in the package pins, more function can be packed into
    both the MPU and the peripheral. Users are increasingly
    able to take advantage of these savings as more MPU
    manufacturers develop serial ports for their products (1-3).
    However, peripherals which are able to communicate with
    these MPUs must be available in order for users to take full
    advantage. Also, MPU serial formats are not standardized
    so not all peripherals can talk to all MPUs.
    The LTCВ®1290 Family
    A new family of 12-bit data acquisition circuits has been
    developed to communicate over just 4 wires to the recently
    developed MPU synchronous serial formats as well as
    to MPUs which do not have serial ports. These circuits
    feature software configurable analog circuitry including analog multiplexers, sample and holds, bipolar and
    unipolar conversion modes and the ability to shut power
    completely off. They also have serial ports which can be ...
  • Download » Design Notes - DN29 PDF, 455 Kb, File published: Dec 1, 1989
    A Single Supply RS232 Interface for Bipolar A to D Converters
    Docket ↓
    A Single Supply RS232 Interface for Bipolar A to D Converters
    Design Note 29
    Sean Gold
    system. Construction also requires close attention to the
    layout of the system grounds and other aspects of circuit
    board design to avoid noise problems.2 Designing circuitry for single supply operation is often an
    attractive simplification for reducing production costs. Yet
    many applications call for just a few additional supplies to
    solve simple interface problems. The example presented
    here describes how an advanced RS232 interface can simplify an A to D converter which processes bipolar signals. To accommodate bipolar inputs (–5 < VIN < 5), the
    LTC1094’s negative rail must be biased beyond the extreme
    signal swing, but below absolute maximum ratings for
    supplies. A 5.6V Zener diode, D1, provides a sufficient
    bias because the V– pin draws very little current. The LT®1180 RS232 transceiver includes a charge pump
    which produces low ripple supplies with sufficient surplus
    current to drive a CMOS A to D converter and precision
    voltage reference. The circuit in Figure 1 operates from
    a single 5V supply, and draws a total quiescent current
    of only 37mA. These features make the circuit ideal for
    applications which must process bipolar signals with
    minimal support electronics. The A to D converter communicates with a remote controller via three wires, which carry the clock, the configuration
    word, and the output data. The chip select signal, CS, is
    generated from the incoming clock with a peak detector, ...

Moldel Line

Series: LTC1294 (9)

Manufacturer's Classification

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

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