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低成本、2通道、±14位串行ADC

产品详情

主要特征

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 14
# Input Channels 2
Conv. Rate (ksps) (max) 0.05
Data Bus SPI
ADC Architecture Sigma-Delta
Diff/S.E. Input Both
External VREF (V) (min) 0
External VREF (V) (max) 5.3
Unipolar VIN (V) (max) 1.8
Bipolar VIN (±V) (max) 5.3
INL (±LSB) 4.9
Package/Pins PDIP/16
SOIC (W)/16
SSOP/20
Budgetary
Price (See Notes)
8.93
缩小

简化框图

Technical Docs

数据资料 低成本、2通道、±14位串行ADC Nov 01, 1998

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参量

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 14
# Input Channels 2
Conv. Rate (ksps) (max) 0.05
Data Bus SPI
ADC Architecture Sigma-Delta
Diff/S.E. Input Both
External VREF (V) (min) 0
External VREF (V) (max) 5.3
Unipolar VIN (V) (max) 1.8
Bipolar VIN (±V) (max) 5.3
INL (±LSB) 4.9
Package/Pins PDIP/16
SOIC (W)/16
SSOP/20
Budgetary
Price (See Notes)
8.93

主要特征

  • Single +5V Supply (MAX111)
  • Two Differential Input Channels
  • 14-Bit Resolution Plus Sign and Overrange
  • 0.03% Linearity (MAX110)
    0.05% Linearity (MAX111)
  • Low Power Consumption:
    • 550µA (MAX110)
    • 640µA (MAX111)
    • 4µA Shutdown Current
  • Up to 50 Conversions/sec
  • 50Hz/60Hz Rejection
  • Auto-Calibration Mode
  • No External Components Required
  • 16-Pin DIP/SO, 20-Pin SSOP

应用/用途

  • 数据采集
  • 面板表
  • 过程控制
  • 温度测量
  • 称重仪

描述

The MAX110/MAX111 analog-to-digital converters (ADCs) use an internal auto-calibration technique to achieve 14-bit resolution plus overrange, with no external components. Operating supply current is only 550µA (MAX110) and reduces to 4µA in power-down mode, making these ADCs ideal for high-resolution battery-powered or remote-sensing applications. A fast serial interface simplifies signal routing and opto-isolation, saves microcontroller pins, and offers compatibility with SPI™, QSPI™, and MICROWIRE™. The MAX110 operates with ±5V supplies, and converts differential analog signals in the -3V to +3V range. The MAX111 operates with a single +5V supply and converts differential analog signals in the ±1.5V range, or single-ended signals in the 0V to +1.5V range.

Internal calibration allows for both offset and gain-error correction under microprocessor (µP) control. Both devices are available in space-saving 16-pin DIP and SO packages, as well as an even smaller 20-pin SSOP package.

简化框图

MAX110、MAX111:典型工作电路 MAX110、MAX111:典型工作电路 Zoom icon

Technical Docs

数据资料 低成本、2通道、±14位串行ADC Nov 01, 1998

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

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