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+2.7V、低功耗、2通道、108ksps、串行10位ADC,8引脚µMAX封装

尺寸最小的2通道、10位ADC

产品详情

主要特征

应用/用途

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 10
# Input Channels 2
Conv. Rate (ksps) (max) 108
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) 0
External VREF (V) (max) 5.25
Unipolar VIN (V) (max) 5.25
INL (±LSB) 1
Package/Pins PDIP/8
UMAX/8
Budgetary
Price (See Notes)
4.96
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参量

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 10
# Input Channels 2
Conv. Rate (ksps) (max) 108
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) 0
External VREF (V) (max) 5.25
Unipolar VIN (V) (max) 5.25
INL (±LSB) 1
Package/Pins PDIP/8
UMAX/8
Budgetary
Price (See Notes)
4.96

主要特征

  • Single-Supply Operation (+2.7V to +5.25V)
  • Two Single-Ended Channels (MAX157)
  • Single Pseudo-Differential Channel (MAX159)
  • Low Power
    • 0.9mA (at 108ksps, +3V)
    • 100µA (at 10ksps, +3V)
    • 10µA (at 1ksps,+3V)
    • < 0.2µA (power-down mode)
  • Internal Track/Hold
  • 108ksps Sampling Rate
  • SPI/QSPI/MICROWIRE-Compatible 3-Wire Serial Interface
  • Space-Saving 8-Pin µMAX Package
  • Pin-Compatible 12-Bit Upgrades Available

应用/用途

  • 电池供电应用
  • 仪表
  • 隔离型数据采集
  • 医疗仪器
  • 便携式数据记录
  • 过程控制监视
  • 系统监控
  • 测试设备

描述

The MAX157/MAX159 low-power, 10-bit analog-to-digital converters (ADCs) are available in 8-pin µMAX® and DIP packages. Both devices operate with a single +2.7V to +5.25V supply and feature a 7.4µs successive-approximation ADC, automatic power-down, fast wake-up (2.5µs), an on-chip clock, and a high-speed, 3-wire serial interface.

Power consumption is only 3.2mW (VDD = +3.6V) at the maximum sampling rate of 108ksps. At slower throughput rates, the 0.2µA automatic shutdown further reduces power consumption.

The MAX157 provides 2-channel, single-ended operation and accepts input signals from 0 to VREF. The MAX159 accepts pseudo-differential inputs ranging from 0 to VREF. An external clock accesses data through the 3-wire serial interface, which is SPI™, QSPI™, and MICROWIRE™ compatible.

Excellent dynamic performance and low power, combined with ease of use and a small package size, make these converters ideal for battery-powered and data acquisition applications, or for other circuits with demanding power-consumption and space requirements. For pin-compatible 12-bit upgrades, see the MAX144/MAX145 data sheet.

简化框图

MAX157、MAX159:引脚配置 MAX157、MAX159:引脚配置 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