ADT7411:  SPI®-/I2C®-Compatible, 10-Bit Digital Temperature Sensor and 8-Channel A/D Converter

The ADT7411* combines a 10-bit temperature-to-digital converter and a 10-bit 8-channel ADC in a 16-lead QSOP. This includes a band gap temperature sensor and a 10-bit ADC to monitor and digitize the ...More

ADT7411:  SPI®-/I2C®-Compatible, 10-Bit Digital Temperature Sensor and 8-Channel A/D Converter

Product Description

The ADT7411* combines a 10-bit temperature-to-digital converter and a 10-bit 8-channel ADC in a 16-lead QSOP. This includes a band gap temperature sensor and a 10-bit ADC to monitor and digitize the temperature reading to a resolution of 0.25°C. The ADT7411 operates from a single 2.7 V to 5.5 V supply. The input voltage on the ADC channels has a range of 0 V to 2.25 V and the input bandwidth is dc. The reference for the ADC channels is derived internally. The ADT7411 provides two serial interface options: a 4-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, and a 2-wire SMBus/I2C interface. It features a standby mode that is controlled via the serial interface.

The ADT7411’s wide supply voltage range, low supply current, and SPI-/I2C-compatible interface make it ideal for a variety of applications, including PCs, office equipment, and domestic appliances.

Applications

  • Portable battery-powered instruments
  • PCs
  • Smart battery chargers
  • Telecommunications systems electronic test equipment
  • Domestic appliances
  • Process controls
  • 1*Protected by U.S. Patent Numbers: 6,169,442; 5,867,012; 5,764174. Other patents pending.

    Features

    • 10-bit temperature-to-digital converter
    • 10-bit 8-channel ADC
      DC input bandwidth
      Input range: 0 V to 2.25 V and 0 V to VDD
    • Temperature range: −40°C to +120°C
    • Temperature sensor accuracy of ±0.5°C
    • Supply range: 2.7 V to 5.5 V
    • Power-down current : <10 μA
    • Internal 2.228 VREF option
    • Double-buffered input logic I2C, SPI, QSPI™, MICROWIRE™, and DSP compatible
    • 4-wire serial interface
    • SMBus packet error checking (PEC) compatible
    • 16-lead QSOP

    Diagrams

    ADT7411 Diagram
    Functional Block Diagram for ADT7411

    Specifications

    Output Type Digital
    Sensor Output DSP Serial,I²C ®,MICROWIRE (TM),QSPI (TM),SPI (TM)
    Temp Res(°C/LSB) 0.25°C/LSB
    Supply Voltage Range +2.7V to +5.5V
    Temp Range(s) -40 to +120

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