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AD7278:  3 MSPS,8-Bit ADC in 6-Lead TSOT

产品详情

The AD7278 is an 8-bit, high speed, low power, successive-approximation ADC. The parts operate from a single 2.35 V to 3.6 V power supply and feature throughput rates of up to 3 MSPS. The parts contain a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 55 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 the conversion is also initiated at this point. There are no pipeline delays associated with the part.

The AD7278 uses advanced design techniques to achieve very low power dissipation at high throughput rates.

The reference for the part is taken internally from VDD. This allows the widest dynamic input range to the ADC; therefore, the analog input range for the part is 0 to VDD. The conversion rate is determined by the SCLK

Product Highlights

  1. 3 MSPS ADCs in a 6-lead TSOT package
  2. AD7476/AD7477/AD7478 and AD7476A/AD7477A/ AD7478A pin-compatible
  3. High throughput with low power consumption
  4. Flexible power/serial clock speed management. This allows maximum power efficiency at low throughput rates
  5. Reference derived from the power supply
  6. 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.

特点和优势

  • Throughput rate: 3 MSPS
  • Specified for VDD of 2.35 V to
    3.6 V
  • Power consumption
    12.6 mW at 3 MSPS with 3 V supplies
  • Wide input bandwidth
    70 dB SNR at 1 MHz input frequency
  • Flexible power/serial clock speed management
  • No pipeline delays
  • Temperature range: −40°C to +125°C
  • Please see data sheet for additional features.

Functional Block Diagram for AD7278

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
AD7276/AD7277/AD7278: 3 MSPS, 12-/10-/8-Bit ADCs in 6-Lead TSOT Data Sheet  (Rev C, 05/2011) (pdf, 596 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

评估套件,原理图符号和PCB封装

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产品推荐及参考设计

推荐配套产品

建议配套产品


推荐AD7278使用的输入缓冲放大器

推荐AD7278使用的精密基准电压源
  • 如需高精度和更好的电源性能,推荐使用REF193.
  • 如需提高3V时的信噪比(SNR),推荐使用AD780.
推荐电源解决方案

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Sample样片申请及购买

价格,封装及供货状态

AD7278 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
AD7278ARMZ 产品状态: 量产 8 ld MSOP 8 工业 Tube, 50 $ 1.94 $ 1.65 Y  材料信息 查看PCN 订购
AD7278ARMZ-RL 产品状态: 量产 8 ld MSOP 8 工业 Reel, 3000 - $ 1.65 Y  材料信息 查看PCN 订购
AD7278AUJZ-500RL7 产品状态: 量产 6 ld TSOT 6 工业 Reel, 500 $ 1.94 $ 1.65 Y  材料信息 查看PCN 订购
AD7278AUJZ-RL7 产品状态: 最后订购时间 6 ld TSOT 6 工业 Reel, 3000 - $ 1.65 Y  材料信息 查看PCN/PDN 订购
AD7278BRMZ 产品状态: 量产 8 ld MSOP 8 工业 Tube, 50 $ 2.21 $ 1.87 Y  材料信息 查看PCN 订购 样片
AD7278BRMZ-REEL 产品状态: 量产 8 ld MSOP 8 工业 Reel, 3000 - $ 1.87 Y  材料信息 查看PCN 订购
AD7278BUJZ-500RL7 产品状态: 量产 6 ld TSOT 6 工业 Reel, 500 $ 2.21 $ 1.87 Y  材料信息 查看PCN 订购
AD7278BUJZ-REEL7 产品状态: 量产 6 ld TSOT 6 工业 Reel, 3000 - $ 1.87 Y  材料信息 查看PCN 订购 样片
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。

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