添加到信号链设计器

AD7495:  1 MSPS, 12-Bit A/D Converter in MSOP-8 or SOIC-8

产品详情

The AD7475/AD7495 are 12-bit, high speed, low power, successive-approximation ADCs that operate from a single 2.7 V to 5.25 V power supply with throughput rates up to 1 MSPS. They contain a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies above 1 MHz.

The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and conversion is initiated at this point. The conversion time is determined by the SCLK frequency. There are no pipeline delays associated with the part.

The AD7475/AD7495 use advanced design techniques to achieve very low power dissipation at high throughput rates. With 3 V supplies and a 1 MSPS throughput rate, the AD7475 consumes just 1.5 mA, while the AD7495 consumes 2 mA. With 5 V supplies and 1 MSPS, the current consumption is 2.1 mA for the AD7475 and 2.6 mA for the AD7495.

The analog input range for the parts is 0 V to REF IN. The 2.5 V reference for the AD7475 is applied externally to the REF IN pin, while the AD7495 has an on-board 2.5 V reference.

Product Highlights

  1. The AD7475 offers 1 MSPS throughput rates with 4.5 mW power consumption.
  2. Single-supply operation with VDRIVE function. The AD7475/AD7495 operate from a single 2.7 V to 5.25 V supply. The VDRIVE function allows the serial interface to connect directly to either 3 V or 5 V processor systems independent of VDD.
  3. Flexible power/serial clock speed management. The con-version rate is determined by the serial clock, allowing the conversion time to be reduced through the serial clock speed increase. The parts also feature shutdown modes to maximize power efficiency at lower throughput rates. This allows the average power consumption to be reduced while not converting. Power consumption is 1 μA when in full shutdown.
  4. No pipeline delay. The parts feature a standard successive approximation ADC with accurate control of the sampling instant via a CS input and once-off conversion control.

Applications

  • Battery-powered systems
  • Personal digital assistants
  • Medical instruments
  • Mobile communications
  • Instrumentation and control systems
  • Data acquisition systems
  • Optical sensors

特点和优势

  • Specified for VDD of 2.7 V to 5.25 V
  • Low Power:
    4.5 mW Max at 1 MSPS with 3 V Supplies
    10.5 mW Max at 1 MSPS with 5 V Supplies
  • Wide Input Bandwidth: 68 dB SNR at 300 kHz Input Frequency
  • Flexible Power/Serial Clock Speed Management
  • Fast Throughput Rate: 1 MSPS
  • No Pipeline Delays
  • High-Speed Serial Interface
    SPI®/QSPI™/MICROWIRE™/DSP-Compatible
  • On-Board Reference 2.5 V (AD7495 Only)
  • Standby Mode: 1 µA Max
  • 8-lead MSOP and SOIC Packages

Functional Block Diagram for AD7495

类似产品

 低分辨率、单通道单极性/双极性8/10/12位PulSAR ADC

文档

快讯名称 内容类型 文件类型
AD7475/AD7495: 1 MSPS, 12-Bit ADCs Data Sheet (Rev B, 05/2005) (pdf, 446 kB) 产品数据手册 PDF
MS-2210:高速ADC的电源设计  (pdf, 327 kB) 技术文章 PDF
8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog  (pdf, 1885 kB)
8- to 18-Bit SAR ADCs with Sample Rates up to 3 MSPS -- The latest additions to ADI’s ADC portfolio offer unrivaled functionality in terms of channel count and power supply voltage, optimal power/speed ratios, and the smallest packages to meet the demands of any data acquisition application, including portable, industrial, medical, wireless, and communications.
概况 PDF
RAQs index 非常见问题解答 HTML
术语表 专业词汇表 HTML

设计工具,模型,驱动及软件

快讯名称 内容类型 文件类型
AD74xx - No-OS Driver for Renesas Microcontroller Platforms 设备驱动 HTML
AD74xx - No-OS Driver for Microchip Microcontroller Platforms 设备驱动 HTML
IIO Single Channel Serial ADC Linux Driver (Wiki Site) 设备驱动 HTML

评估套件,原理图符号和PCB封装

原理图符号和PCB封装— ADI公司提供与当今众多CAD系统兼容的原理图符号和PCB封装(Symbols & Footprints),以便更广泛、更轻松地使用。

Sample样片申请及购买

价格,封装及供货状态

AD7495 型号选项
产品型号 封装 引脚 温度范围 包装和数量 报价*(100-499) 报价*1000 pcs RoHS 查看PCN/PDN 查看库存/
购买/样片
AD7495AR 产品状态: 量产 8 ld SOIC 8 工业 Tube, 98 $ 7.14 $ 6.07 N  材料信息 查看PCN 订购
AD7495AR-REEL 产品状态: 量产 8 ld SOIC 8 商业 Reel, 2500 - $ 6.07 N  材料信息 查看PCN 订购
AD7495AR-REEL7 产品状态: 量产 8 ld SOIC 8 商业 Reel, 1000 - $ 6.07 N  材料信息 查看PCN 订购
AD7495ARM 产品状态: 量产 8 ld MSOP 8 工业 Tube, 50 $ 7.14 $ 6.07 N  材料信息 查看PCN 订购
AD7495ARMZ 产品状态: 量产 8 ld MSOP 8 工业 Tube, 50 $ 6.18 $ 5.25 Y  材料信息 查看PCN 订购
AD7495ARMZ-REEL 产品状态: 最后订购时间 8 ld MSOP 8 工业 Reel, 3000 - $ 5.25 Y  材料信息 查看PCN/PDN 订购
AD7495ARMZ-REEL7 产品状态: 量产 8 ld MSOP 8 工业 Reel, 1000 - $ 5.25 Y  材料信息 查看PCN 订购
AD7495ARZ 产品状态: 量产 8 ld SOIC 8 工业 Tube, 98 $ 6.18 $ 5.25 Y  材料信息 查看PCN 订购 样片
AD7495ARZ-REEL7 产品状态: 量产 8 ld SOIC 8 商业 Reel, 1000 - $ 5.25 Y  材料信息 查看PCN 订购
AD7495BRM-REEL 产品状态: 最后订购时间 8 ld MSOP 8 工业 Reel, 3000 - $ 6.89 N  材料信息 查看PCN/PDN 订购
AD7495BRMZ 产品状态: 量产 8 ld MSOP 8 工业 Tube, 50 $ 7.02 $ 5.96 Y  材料信息 查看PCN 订购
AD7495BRZ 产品状态: 量产 8 ld SOIC 8 工业 Tube, 98 $ 7.02 $ 5.96 Y  材料信息 查看PCN 订购
AD7495BRZ-REEL 产品状态: 最后订购时间 8 ld SOIC 8 商业 Reel, 2500 - $ 5.96 Y  材料信息 查看PCN/PDN 订购
AD7495BRZ-REEL7 产品状态: 量产 8 ld SOIC 8 商业 Reel, 1000 - $ 5.96 Y  材料信息 查看PCN 订购
帮助

这里所列出的美国报价单仅供预算参考,指美元报价(规定订量的每片美元,美国离岸价),如有修改不再另行通知。由于地区关税、商业税、汇率及手续费原因,国际报价可能不同。对于特殊批量报价,请与您当地的ADI公司办事处或代理商联络。对于评估板和套件的报价是指一个单位价格。

沪ICP备09046653号
产品评价 X
content here.
content here.

产品评价

关闭