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MAX1298A, MAX1298B, MAX1298C

12位串行输出温度传感器,带有5通道ADC

12位ADC,内置±1°C温度传感器,并可测量远端温度

产品详情

主要特征

应用/用途

简化框图

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主要特征

  • Local and Remote Temperature Sensing
  • 12-Bit Resolution for Temperature and Voltage Inputs
  • ±1°C Accuracy from -40°C to +85°C
  • Fully Differential Inputs
  • Single-Supply Operation
    • +4.75V to +5.25V (MAX1298)
    • +2.7V to +3.6V (MAX1299)
  • 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
  • Internal Precision Voltage Reference
    • 2.50V (MAX1298)
    • 1.20V (MAX1299)
  • Space-Saving 16-Pin SSOP Package

应用/用途

  • 手持式仪表(PDA、掌上电脑)
  • 工业过程控制
  • 医疗装置

描述

The MAX1298/MAX1299 implement local and remote temperature sensing with 12-bit resolution, using +5V and +3V supply voltages, respectively. Accuracy is ±1°C from 0 to +70°C, with no calibration needed. The devices feature an algorithmic switched-capacitor analog-to-digital converter (ADC), an on-chip clock, and a 3-wire serial interface compatible with SPI, QSPI™, and MICROWIRE®.

The MAX1298/MAX1299 also perform fully differential voltage measurements with 12-bit resolution and separate track-and-hold (T/H) for positive and negative inputs. Both devices accept versatile input modes consisting of two 3-channel signal pairs, five 1-channel signals relative to an AIN5, or VDD/4 relative to ground. An external reference may be used for more accurate voltage measurements.

Typical power consumption is only 1.3mW (MAX1299). A shutdown mode and two standby modes provide multiple strategies for prolonging battery life in portable applications that require limited sampling throughput.

The MAX1298/MAX1299 are available in 16-pin SSOP packages.

简化框图

MAX1298、MAX1298A、MAX1298B、MAX1298C、MAX1299、MAX1299A、MAX1299B、MAX1299C:功能框图 MAX1298、MAX1298A、MAX1298B、MAX1298C、MAX1299、MAX1299A、MAX1299B、MAX1299C:功能框图 Zoom icon

技术文档

支持和培训

在Maxim的知识库中搜索技术问题的答案

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Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心