MAX189

+5V、低功耗、12位串行ADC

对于3V应用,请参考MAX1240


点击查看特定型号的库存状况。

说明

The MAX187/MAX189 serial 12-bit analog-to-digital converters (ADCs) operate from a single +5V supply and accept a 0 to 5V analog input. Both parts feature an 8.5µs successive-approximation ADC, a fast track/hold (1.5µs), an on-chip clock, and a high-speed 3-wire serial interface.

The MAX187/MAX189 digitize signals at a 75ksps throughput rate. An external clock accesses data from the interface, which communicates without external hardware to most digital signal processors and microcontrollers. The interface is compatible with SPI, QSPI™, and MICROWIRE®.

The MAX187 has an on-chip buffered reference, and the MAX189 requires an external reference. Both the MAX187 and MAX189 save space with 8-pin PDIP and 16-pin SO packages. Power consumption is 7.5mW and reduces to only 10µW in shutdown.

Excellent AC characteristics and very low power consumption combined with ease of use and small package size make these converters ideal for remote DSP and sensor applications, or for circuits where power consumption and space are crucial.

MAX187、MAX189:功能框图 MAX187、MAX189:功能框图 放大+

关键特性

  • 12-Bit Resolution
  • ±½ LSB Integral Nonlinearity (MAX187A/MAX189A)
  • Internal Track/Hold, 75kHz Sampling Rate
  • Single +5V Operation
  • Low Power
    • 2µA Shutdown Current
    • 1.5mA Operating Current
  • Internal 4.096V Buffered Reference (MAX187)
  • 3-Wire Serial Interface, Compatible with SPI, QSPI, and MICROWIRE
  • Small-Footprint 8-Pin PDIP and 16-Pin SO

应用

  • 高精度过程控制
  • 隔离型数据采集
  • 便携式数据记录
  • 远端数字信号处理
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
THD
(dB)
Package/PinsBudgetary
Price
ADCmaxnominalminmaxmaxSee Notes
MAX187 12175SARSPIS.E. Only4.0962.55.254.096-80
CDIP/8
PDIP/8
SOIC (W)/16
$9.61 @1k
MAX189 -
PDIP/8
SOIC (W)/16
$6.97 @1k
查看所有Precision ADCs (< 5Msps) (443)
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。


MAX187EVKIT: MAX187评估板

质量和环境数据

产品可靠性报告: MAX189.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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相关资料

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