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+2.7V至+5.25V、低功耗、10位串行ADC,SO-8封装

产品详情

主要特征

应用/用途

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 10
# Input Channels 1
Conv. Rate (ksps) (max) 73
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) 1
External VREF (V) (max) 5.25
Unipolar VIN (V) (max) 2.5
INL (±LSB) 0.5
Package/Pins PDIP/8
SOIC (N)/8
Budgetary
Price (See Notes)
3.86
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参量

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 10
# Input Channels 1
Conv. Rate (ksps) (max) 73
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) 1
External VREF (V) (max) 5.25
Unipolar VIN (V) (max) 2.5
INL (±LSB) 0.5
Package/Pins PDIP/8
SOIC (N)/8
Budgetary
Price (See Notes)
3.86

主要特征

  • +2.7V to +5.25V Single-Supply Operation
  • 10-Bit Resolution
  • Internal 2.5V Reference (MAX1242)
  • Small Footprint: 8-Pin PDIP and SO Packages
  • Low Power:
    • 3.7mW (73ksps, MAX1242)
    • 3mW (73ksps, MAX1243)
    • 66µW (1ksps, MAX1243)
    • 5µW (Power-Down Mode)
  • Internal Track/Hold
  • SPI/QSPI/MICROWIRE 3-Wire Serial Interface
  • Pin-Compatible 12-Bit Upgrades: MAX1240/MAX1241

应用/用途

  • 隔离型数据采集
  • 便携式数据记录
  • 过程控制监视
  • 温度测量
  • 测试设备

描述

The MAX1242/MAX1243 are low-power, 10-bit analog-to-digital converters (ADCs) available in 8-pin packages. They operate with a single +2.7V to +5.25V supply and feature a 7.5µs successive-approximation ADC, a fast track/hold (1.5µs), an on-chip clock, and a high-speed, 3-wire serial interface.

Power consumption is only 3mW (VDD = 3V) at the 73ksps maximum sampling speed. A 2µA shutdown mode reduces power at slower throughput rates.

The MAX1242 has an internal 2.5V reference, while the MAX1243 requires an external reference. The MAX1243 accepts signals from 0V to VREF, and the reference input range includes the positive supply rail. An external clock accesses data from the 3-wire interface, which connects directly to standard microcontroller I/O ports. The interface is compatible with SPI, QSPI, and MICROWIRE®.

Excellent AC characteristics and very low power combined with ease of use and small package size make these converters ideal for remote-sensor and data-acquisition applications, or for other circuits with demanding power consumption and space requirements. The MAX1242/MAX1243 are available in 8-pin PDIP and SO packages.

简化框图

MAX1242、MAX1243:功能框图 MAX1242、MAX1243: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