回到顶部

+5V单电源、1Msps、14位自校准ADC

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

产品详情

主要特征

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 14
# Input Channels 1
Conv. Rate (ksps) (max) 1000
Data Bus µP/14
Diff/S.E. Input Both
External VREF (V) (min) 4.096
External VREF (V) (max) 4.5
Bipolar VIN (±V) (max) 2.048
INL (±LSB) 1.2
Package/Pins MQFP/44
Budgetary
Price (See Notes)
15.6
缩小

简化框图

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心

参量

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 14
# Input Channels 1
Conv. Rate (ksps) (max) 1000
Data Bus µP/14
Diff/S.E. Input Both
External VREF (V) (min) 4.096
External VREF (V) (max) 4.5
Bipolar VIN (±V) (max) 2.048
INL (±LSB) 1.2
Package/Pins MQFP/44
Budgetary
Price (See Notes)
15.6

主要特征

  • 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

应用/用途

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

描述

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.

简化框图

MAX1205:引脚配置 MAX1205:引脚配置 Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心