ADG5298

• Complete high temperature data acquisition reference platform with all components and assembly materials rated to at least 200°C
• 10 channels of high precision analog to digital conversion
  • (2) Direct channels, 400ksps max
  • (8) Multiplexed channels, 16ksps max (including temp sensor)
  • Multiple GPIO for external control and optional external triggering
• Complete software package including
  • Optimized firmware with RTOS for multiple modes of data acquisition
  • PC Host software for control, viewing and logging data
  • Source code available for all software
• Form factor compatible with downhole oil/gas exploration instrumentation
• Kit includes analog and digital/power breakout boards for rapid evaluation

EV-HT-200CDAQ1 builds on the CN0365 analog front end reference design from with the goal of providing a foundation for a high temperature, low power microcontroller-based data acquisition and control solution that meets the requirements for many downhole instrumentation and other high temperature applications. Based upon the AD7981 analog-to-digital SAR converter, this reference design demonstrates a full featured system with two high speed simultaneously sampled channels along with 8 additional multiplexed channels suitable for covering the acquisition requirements of a broad range of downhole tools (10 channels total). This analog front end is connected to the VORAGO Technologies VA10800 ARM® Cortex^®-M0 based microcontroller via multiple SPI ports. Once acquired, the data can be processed locally or transmitted via a UART or optional RS485 communications interface. Other supporting components on the board, including memory, clock, power and passives are all rated for high temperature operation by their respective suppliers and verified to operate reliably at 200°C or higher. In addition to the hardware, open source firmware is supplied for the project using FreeRTOS with optimized drivers and data acqusition protocol with multiple modes of operation. Open source PC software included allows the users to connect to the board via UART to control acquisition modes, view data, log data and perform signal analysis. This platform is suitable for reference design, rapid prototyping (such as new sensor techniques) and lab testing of high temperature instrumentation systems.

• 最高 210°C の高温動作
• 電源電圧
• 両電源: ±5 V ～ ±22 V
• 単電源: 8 V ～ 44 V
• 3 V ロジック互換のパラレル・インターフェース

EVAL-ADG5298EB1Z は ADG5298 高温 8:1 マルチプレクサの評価用ボードです。ボード・アセンブリは全体に高温に対応した素材で構築されており、最高 210°C の短時間のデバイス評価に適しています。

ADG5298 は EVALADG5298EB1Z 評価用ボードの中央にハンダ付けされており、ソースと各ドレイン・ピンに接続するためにヘッダーが用意されています。4 ピンのヘッダーがデバイスに電力を供給し、ユーザ定義のデジタル・ロジック電源電圧を提供します。

ADG5298 の詳細な仕様は、ADG5298 のデータシートに記載されています。EVAL-ADG5298EB1Z 評価用ボードを使用する際は、ユーザー・ガイド（UG-1038）と併せて参照してください。