LTC6915CDE

• Product introduction

peculiarity

• 14 programmable gains
• 125dB CMRR independent of gain
• Gain Accuracy: 0.1% Typical
• Maximum offset voltage: 10uV
• Maximum offset voltage drift: 50nV/°C
• Rail-to-rail inputs and outputs
• Parallel and serial (SPI) interfaces for gain setting
• Operating supply: 2.7V to ±5.5V
• Typical noise: 2.5uV_P-P(0.01Hz to 10Hz)
• Available in 16-lead SSOP and 12-lead DFN packages

• description

  LTC^®The 6915 is a precision oneProgrammable gain amplifier。 The gain can be set to 0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, or 4096 through a parallel or serial interface. With a single 5V supply and any set gain, the CMRR is typically 125dB. The voltage offset is less than 10uV and the temperature drift is less than 50nV/°C.

  The LTC6915 uses charge-balanced sampling data to convert a differential input voltage into a single-ended signal, which is then amplified by a zero-drift op amp.

  The differential input operates from rail to rail, while the single-ended output oscillates from rail to rail. The LTC6915 can be used in single supply applications as low as 2.7V or in applications with dual ±5V supplies. The LTC6915 is available in a 16-lead SSOP package and a 12-lead DFN surface mount package.

  
  

  apply

  • Thermocouple amplifiers
  • Electronic scales
  • Medical instruments
  • Strain gauge amplifiers
  • High-resolution data acquisition