AD74115BCPZ-RL7

AD74115 is a single-channel, software-configurable, input and output device for industrial control applications. It provides a wide range of use cases, integrated on a single chip. This use case includes analogue output, analogue input, digital output, digital input, resistance temperature detector (RTD), and thermocouple measurement capability. A serial peripheral interface (SPI) is used to handle all communications to the device. The digital input and digital outputs can be accessed via the SPI or the general-purpose input and output (GPIO) pins to support higher-speed data rates. The device features a 16-bit, Σ-Δ analogue-to-digital converter (ADC) and a 14-bit digital-to-analogue converter (DAC). It contains a high accuracy 2.5V on-chip reference that can be used as the DAC and ADC reference. Application includes isolated industrial control systems, process control, factory automation, building control systems.

• Multiple configurable modes to a single pin, auxiliary high voltage sense pins
• Overvoltage tolerant on screw terminal facing pins, powered or unpowered
• On-chip diagnostics including open-circuit and short-circuit detection
• Unipolar and bipolar capability, SPI-compatible, programmable power control
• Resolution is 14bits (AVDD = +6V to +28.8V, AVSS = -2.5V to -18V, TA = -40°C to +105°C) minimum
• Output range from -12 to +12V (AVDD = +6V to +28.8V, AVSS = -2.5V to -18V, TA = -40°C to +105°C)
• Differential nonlinearity range from −1.0 to +1.0LSB (guaranteed monotonic, TA = -40°C to +105°C)
• Gain error range from −0.2 to +0.2%FSR (AVDD= +6V to +28.8V, AVSS= -2.5V to -18V, TA= -40 to +105°C)
• Typ output noise is 0.17LSB p-p (0.1Hz to 10Hz bandwidth, 100Kohm load, TA= -40 to +105°C)
• 48-lead LFCSP package, temperature range from -40°C to +105°C

บันทึก

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