MAX121

308ksps ADC,带有DSP接口和78dB SINAD


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说明

The MAX121 is a complete, BiCMOS, serial-output, sampling 14-bit analog-to-digital converter (ADC) that combines an on-chip track/hold and a low-drift, low-noise, buried-zener voltage reference with fast conversion speed and low power consumption. The throughput rate is as high as 308k samples per second (ksps). The full-scale analog input range is ±5V.

The MAX121 utilizes the successive-approximation architecture with a high-speed DAC to achieve both fast conversion speeds and low-power operation. Operating with +5V and -12V or -15V power supplies, power consumption is only 210mW.

The MAX121 can be directly interfaced to the serial port of most popular digital-signal processors, and comes in space-saving 16-pin DIP and SO and smaller 20-pin SSOP packages. The MAX121 operates with TTL- and CMOS-compatible clocks in the frequency range from 1.1MHz to 5.5MHz. All logic inputs and outputs are TTL- and CMOS-compatible. This data sheet includes application notes for easy interface to TMS320, µPD77230, and ADSP2101 digital-signal processors, as well as µPs using the Motorola SPI and QSPI interface standards.
MAX121:引脚配置 MAX121:引脚配置 放大+

关键特性

  • 14-Bit Resolution
  • 2.9µs Conversion Time/308ksps Throughput
  • 400ns Acquisition Time
  • Low Noise and Distortion
    • 78dB SINAD
    • -85dB THD
  • ±5V Bipolar Input Range, Overvoltage Tolerant to ±15V
  • 210mW Power Dissipation
  • Continuous-Conversion Mode Available
  • 30ppm/°C, -5V Internal Reference
  • Interfaces to DSP Processors
  • 16-Pin DIP and SO Packages, 20-Pin SSOP Package

应用

  • null
  • 数字信号处理
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  • 频谱分析
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Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
Bipolar VIN
(±V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalmaxSee Notes
MAX121 141308SARSPIS.E. Only5578-852
CDIP/16
PDIP/16
SOIC (W)/16
SSOP/20
$19.64 @1k
查看所有Precision ADCs (< 5Msps) (444)
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。


MAX121EVKIT: MAX121评估板

质量和环境数据

产品可靠性报告: MAX121.pdf 
无铅封装的锡(Sn)晶须报告

CAD Symbols and Footprints

  • MAX121CAP+
  • MAX121CAP+T
  • MAX121CPE+
  • MAX121CWE+
  • MAX121CWE+T
  • MAX121EAP+
  • MAX121EPE+
  • MAX121EWE+
  • MAX121EWE+T
  • MAX121MJE
  • 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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