低噪声、低失真(80dB SNR @ 500ksps) 14位、1Msps ADC



The MAX1205 is a 14-bit, monolithic, analog-to-digital converter (ADC) capable of conversion rates up to 1Msps. This integrated circuit, built on a CMOS process, uses a fully differential, pipelined architecture with digital error correction and a short self-calibration procedure that corrects for capacitor and gain mismatches and ensures 14-bit linearity at full sample rates. An on-chip track/hold (T/H) maintains superb dynamic performance up to the Nyquist frequency. The MAX1205 operates from a single +5V supply.

The fully differential inputs allow an input swing of ±VREF. The reference is also differential, with the positive reference (RFPF) typically connected to +4.096V and the negative reference (RFNF) connected to analog ground. Additional sensing pins (RFPS, RFNS) are provided to compensate for any resistive-divider action that may occur due to finite internal and external resistances in the reference traces and the on-chip resistance of the reference pins. A single-ended input is also possible using two operational amplifiers.

The power dissipation is typically 257mW at +5V, at a sampling rate of 1Msps. The device employs a CMOS-compatible, 14-bit parallel, two's complement output data format. For higher sampling rates, the MAX1201 is a 2.2Msps pin-compatible upgrade to the MAX1205.

The MAX1205 is available in an MQFP package, and operates over the commercial (0°C to +70°C) and the extended (-40°C to +85°C) temperature ranges.
MAX1205:引脚配置 MAX1205:引脚配置 放大+


  • Monolithic, 14-Bit, 1Msps ADC
  • +5V Single Supply
  • SNR of 80dB for fIN = 500kHz
  • SFDR of 87dB for fIN = 500kHz
  • Low Power Dissipation: 257mW
  • On-Demand Self-Calibration
  • Differential Nonlinearity Error: ±0.3LSB
  • Integral Nonlinearity Error: ±1.2LSB
  • Three-State, Two's Complement Output Data


  • 通信系统
  • 数据采集
  • 成像
  • 医疗
  • 扫描仪

请查看具体的参数规格 Precision ADCs (< 5Msps) (434)

Part NumberResolution
Input ChannelsConv. Rate
Data BusDiff/S.E. InputExternal VREF
External VREF
Bipolar VIN
ADCmaxminmaxmaxSee Notes
MAX1205 1411000µP/14Both4.0964.52.04880-841.2
$14.72 @1k

Pricing Notes:


设计指南 1023 Understanding Pipelined ADCs
设计指南 634 Pipeline ADCs Come of Age
申请可靠性报告: MAX1205 
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
设计指南 1023 Understanding Pipelined ADCs
设计指南 634 Pipeline ADCs Come of Age
类型 编号 标题
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