AD1671S: Aerospace 12-Bit 1.25 MSPS ADC

The AD1671 is a monolithic 12-bit, 1.25 MSPS analog-to-digital converter with an on-board, high performance sample-and-hold amplifier (SHA) and voltage reference. The AD1671 guarantees no missing codes over the full operating temperature range. The combination of a merged high speed bipolar / CMOS process and a novel architecture results in a combination of speed and power consumption far superior to previously available hybrid implementations. Additionally, the greater reliability of monolithic construction offers improved system reliability and lower costs than hybrid designs.

The fast settling input SHA is equally suited for both multiplexed systems that switch negative to positive full-scale voltage levels in successive channels and sampling inputs at frequencies up to and beyond the Nyquist rate. The AD1671 provides both reference output and reference input pins, allowing the on-board reference to serve as a system reference. An external reference can also be chosen to suit the dc accuracy and temperature drift requirements of the application.

The AD1671 uses a subranging flash conversion technique, with digital error correction for possible errors introduced in the first part of the conversion cycle. An on-chip timing generator provides strobe pulses for each of the four internal flash cycles. A single ENCODE pulse is used to control the converter. The digital output data is presented in twos complement or offset binary output format. An out-of-range signal indicates an overflow condition. It can be used with the most significant bit to determine low or high overflow.

The performance of the AD1671 is made possible by using high speed, low noise bipolar circuitry in the linear sections and low power CMOS for the logic sections. Analog Devices' ABCMOS-1 process provides both high speed bipolar and 2-micron CMOS devices on a single chip. Laser trimmed thin-film resistors are used to provide accuracy and temperature stability.

功能框图

AD1671S 功能框图

技术特性
  • Conversion Time: 800 ns
  • 1.25 MHz Throughput Rate
  • Complete: On-Chip Sample-and-Hold Amplifier and Voltage Reference
  • Low Power Dissipation
  • No Missing Codes Guaranteed
  • Pin Configurable Input Voltage Ranges
  • Signal-to-Noise Plus Distortion Ratio fIN = 100 kHz: 70 dB typical
  • Twos Complement or Offset Binary Output Data
  • Out of Range Indicator
订购指南
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
AD16710703D 产品状态: 量产 S/B OR B/B CERAMIC DIP 28 军用 Tube, 13 $ 0.00 $ 0.00 N  材料信息
AD16710703F 产品状态: 量产 CER. FLATPACK WITH LEADS 28 军用 Tray, 12 $ 0.00 $ 0.00 N  材料信息
AD16710713F 产品状态: 量产 CER. FLATPACK WITH LEADS 28 军用 Tray, 12 $ 0.00 $ 0.00 N  材料信息
AD1671S 应用技术支持与电子电路设计开发资源下载
  1. AD1671S 数据手册DataSheet 下载 Rev I, 08/2009 (pdf 325kB). pdf
  2. ADI 模拟器件公司比较器产品选型指南 . pdf
  3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .pdf