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TLV2556 - 产品图解:
TLV2556-具有内部参考的 12 位 200KSPS 11 通道低功耗串行 ADC
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TI产品 - TLV2556介绍
TLV2556 - 具有内部参考的 12 位 200KSPS 11 通道低功耗串行 ADC

TLV2556是TI公司的一款精密ADC(<=10MSPS)产品,TLV2556是具有内部参考的 12 位 200KSPS 11 通道低功耗串行 ADC,本页介绍了TLV2556的产品说明、应用、特性等,并给出了与TLV2556相关的TI元器件型号供参考。

TLV2556 - 具有内部参考的 12 位 200KSPS 11 通道低功耗串行 ADC - 精密ADC(<=10MSPS) - 模数转换器 - TI公司(Texas Instruments,德州仪器)

产品描述

The TLV2556 is a 12-bit, switched-capacitor, successive-approximation, analog-to-digital converter. The ADC has three control inputs [chip select (CS)\, the input-output clock, and the address/control input (DATAIN)], designed for communication with the serial port of a host processor or peripheral through a serial 3-state output.

In addition to the high-speed converter and versatile control capability, the device has an on-chip 14-channel multiplexer that can select any one of 11 inputs or any one of three internal self-test voltages using configuration register 1. The sample-and-hold function is automatic. At the end of conversion, when programmed as EOC, the pin 19 output goes high to indicate that conversion is complete. If pin 19 is programmed as INT\, the signal goes low when the conversion is complete. The converter incorporated in the device features differential, high-impedance reference inputs that facilitate ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noise. A switched-capacitor design allows low-error conversion over the full operating temperature range. An internal reference is available and its voltage level is programmable via configuration register 2 (CFGR2).

The TLV2556I is characterized for operation from TA = –40°C to 85°C. See available options table for package options.

产品特性

  • 12-Bit-Resolution A/D Converter
  • Up to 200-KSPS (150-KSPS for 3 V) Throughput Bit With 12-Output Mode Over Operating Temperature Range
  • 11 Analog Input Channels
  • 3 Built-In Self-Test Modes
  • Programmable Reference (2.048/4.096 V Internal, External)
  • Inherent Sample and Hold Function
  • Linearity Error ...±1 LSB Max
  • On-Chip Conversion Clock
  • Programmable Conversion Status Output: INT\ or EOC
  • Unipolar or Bipolar Output Operation
  • Programmable MSB or LSB First
  • Programmable Power Down
  • Programmable Output Data Length
  • SPI Compatible Serial Interface With I/O Clock Frequencies up to 15 MHz (CPOL=0, CPHA=0)
  • APPLICATIONS
    • Industrial Process Control
    • Portable Data Logging
    • Battery Powered Instruments
    • Automotive

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