Analog Products

概要

The ISL26102 and ISL26104 provide a low-noise programmable gain amplifier along with a 24-bit Delta-Sigma Analog-to-Digital Converter with two channel (ISL26102) or four channel (ISL26104) differential, multiplexed inputs. The devices feature exceptional noise performance for conversion rates ranging from 2. 5Sps to 4kSps. The on-chip low-noise programmable-gain amplifier provides gains ranging from 1 to 128, which supports ±19. 5mVFS from a 5V reference. The high input impedance allows direct connection of sensors such as load cell bridges to ensure the specified measurement accuracy without additional circuitry. The Delta-Sigma ADC features a 3rd-order modulator providing up to 21. 5 bit noise-free performance (10Sps), with user-selectable word rates. The converter can be operated from an external clock source, an external crystal (typically 4. 9152MHz), or the on-chip oscillator. The ISL26102 and ISL26104 offer a simple-to-use serial interface. The ISL26102 and ISL26104 are available in a Thin Shrink Small Outline Package (TSSOP). The devices are specified for operation over the automotive temperature range (-40°C to +105°C).

  • Programmable gain amplifier with gains of 1 to 128
  • Low noise: 7nV/√Hz @ PGA = 128
  • Linearity error: 0.0002% FS
  • Output word rates up to 4kSps
  • Low-side switch for load cell power management
  • +5V analog and +2.7V to +5V digital supplies
  • ISL26102 in 24 Ld TSSOP
  • ISL26104 in 28 Ld TSSOP
  • ESD 7.5kV - HBM
  • Weigh scales
  • Temperature monitors and controls
  • Load safety systems
  • Industrial process control
  • Pressure sensors

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