10位、20Msps ADC

低功耗、低失真、10位ADC,提供61dB SNR



The MAX1425 10-bit, monolithic analog-to-digital converter (ADC) is capable of a 20Msps sampling rate. This device features an internal track-and-hold (T/H) amplifier for excellent dynamic performance; at the same time, it minimizes the number of external components. Low input capacitance of only 8pF minimizes input drive requirements. A wide input bandwidth (up to 150MHz) makes this device suitable for digital RF/IF downconverter applications employing undersampling techniques.

The MAX1425 employs a differential pipelined architecture with a wideband T/H amplifier to maximize throughput while limiting power consumption to only 172mW. The MAX1425 generates an internal +2.5V reference that supplies three additional reference voltages (+3.25V, +2.25V, and +1.25V). These reference voltages provide a differential input range of +2V to -2V. The analog inputs are biased internally to correct the DC level, eliminating the need for external biasing on AC-coupled applications.

A separate +3V digital logic supply input allows for separation of digital and analog circuitry. The output data is in two's complement format. The MAX1425 is available in the space-saving 28-pin SSOP package. For a pin-compatible version at a lower data rate, refer to the MAX1426 data sheet. For a higher data rate, refer to the MAX1424 data sheet.
MAX1425:功能框图 MAX1425:功能框图 放大+


  • Differential Inputs for High Common-Mode Noise Rejection
  • Signal-to-Noise Ratio
    • 61dB (at fIN = 2MHz)
    • 59.3dB (at fIN = 10MHz)
  • Internal +2.5V Reference
  • 150MHz Input Bandwidth
  • Wide ±2V Input Range
  • Low Power Consumption: 172mW
  • Separate Digital Supply Input for 3V Logic Compatibility
  • Single +5V Supply Operation Possible


  • CCD像素处理
  • 中频与基带数字化
  • IR焦平面矩阵
  • 医疗超声成像
  • 雷达
  • 机顶盒

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


应用笔记 3292 Crunching FFTs with Microsoft Excel
设计指南 1023 Understanding Pipelined ADCs
申请可靠性报告: MAX1425 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

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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类型 编号 标题
应用笔记 3292 Crunching FFTs with Microsoft Excel
设计指南 1023 Understanding Pipelined ADCs
类型 编号 标题
评估板2505MAX1425EVKIT MAX1425MAX1426评估板
评估板2505MAX1426EVKIT MAX1425MAX1426评估板