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LTC1598是8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converter

LTC1598 - 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converter

LTC1598 - 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converter - Linear Technology(凌力尔特)

功能描述

The LTC1594/LTC1598 are micropower, 12-bit sampling A/D converters that feature 4- and 8-channel multiplexers, respectively. They typically draw only 320µA of supply current when converting and automatically power down to a typical supply current of 1nA between conversions. The LTC1594 is available in a 16-pin SO package and the LTC1598 is packaged in a 24-pin SSOP. Both operate on a 5V supply. The 12-bit, switched-capacitor, successive approximation ADCs include a sample-and-hold.

On-chip serial ports allow efficient data transfer to a wide range of microprocessors and microcontrollers over three or four wires. This, coupled with micropower consumption, makes remote location possible and facilitates transmitting data through isolation barriers.

The circuit can be used in ratiometric applications or with an external reference. The high impedance analog inputs and the ability to operate with reduced spans (to 1.5V full scale) allow direct connection to sensors and transducers in many applications, eliminating the need for gain stages.

特点
  • 12-Bit Resolution
  • Auto Shutdown to 1nA
  • Low Supply Current: 320µA
  • Guaranteed ±3/4LSB Max DNL
  • Single Supply 5V Operation (3V Versions Available: LTC1594L/LTC1598L)
  • Multiplexer: 4-Channel MUX (LTC1594) 8-Channel MUX (LTC1598)
  • Separate MUX Output and ADC Input Pins
  • MUX and ADC May Be Controlled Separately
  • Sampling Rate: 16.8ksps
  • I/O Compatible with QSPI, SPI, MICROWIRE ™, etc.
  • Small Package: 16-Pin Narrow SO (LTC1594) 24-Pin SSOP (LTC1598)
  • 应用
  • Pen Screen Digitizing
  • Battery-Operated Systems
  • Remote Data Acquisition
  • Isolated Data Acquisition
  • Battery Monitoring
  • Temperature Measurement
  • 以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格(美元)
    器件型号 封装 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量)
    LTC1598CG SSOP-24 C $7.15 $5.80
    LTC1598CG#PBF SSOP-24 C $7.15 $5.80
    LTC1598CG#TR SSOP-24 C $5.90
    LTC1598CG#TRPBF SSOP-24 C $5.90
    LTC1598IG SSOP-24 I $8.15 $6.65
    LTC1598IG#PBF SSOP-24 I $8.15 $6.65
    LTC1598IG#TR SSOP-24 I $6.75
    LTC1598IG#TRPBF SSOP-24 I $6.75
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