MAX145

+2.7V、低功耗、2通道、108ksps、串行12位ADC,8引脚µMAX封装


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说明

The MAX144/MAX145 low-power, 12-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 automatic shutdown (0.2µA) further reduces power consumption.

The MAX144 provides 2-channel, single-ended operation and accepts input signals from 0 to VREF. The MAX145 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 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 10-bit ADCs, see the MAX157 and MAX159 data sheets.
MAX144、MAX145:引脚配置 MAX144、MAX145:引脚配置 放大+

关键特性

  • Single-Supply Operation (+2.7V to +5.25V)
  • Two Single-Ended Channels (MAX144) One Pseudo-Differential Channel (MAX145)
  • Low Power
    • 0.9mA (108ksps, +3V Supply)
    • 100µA (10ksps, +3V Supply)
    • 10µA (1ksps, +3V Supply)
    • 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 10-Bit Versions Available

应用

  • 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
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputExternal VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxminmaxmaxSee Notes
MAX144 122108SARSPIS.E. Only05.255.25-801
PDIP/8
UMAX/8
$7.76 @1k
MAX145 1
PDIP/8
UMAX/8
$7.04 @1k
查看所有Precision ADCs (< 5Msps) (440)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

质量和环境数据

产品可靠性报告: MAX145.pdf 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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