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resources:tools-software:uc-drivers:renesas:ad7746 [11 May 2012 14:20] – Created Dragos Bogdanresources:tools-software:uc-drivers:renesas:ad7746 [08 Apr 2021 16:48] (current) – link to newer project page Darius B
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 ====== AD7746 - Microcontroller No-OS Driver ====== ====== AD7746 - Microcontroller No-OS Driver ======
 +
 +<note important>
 +You're looking at a legacy page. A newer driver and reference project demo are available at [[resources/tools-software/uc-drivers/ad7746|this page]].
 +</note>
  
 ===== Supported Devices ===== ===== Supported Devices =====
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 ===== Overview ===== ===== Overview =====
 +The [[adi>AD7745]]/[[adi>AD7746]] are a high resolution, Σ-Δ capacitance-to-digital converter (CDC). The capacitance to be measured is connected directly to the device inputs. The architecture fea-tures inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high linearity (±0.01%), and high accuracy (±4 fF factory calibrated). The [[adi>AD7745]]/[[adi>AD7746]] capacitance input range is ±4 pF (changing), while it can accept up to 17 pF common-mode capacitance (not changing), which can be balanced by a programmable on-chip, digital-to-capacitance converter (CAPDAC).
 +
 +The [[adi>AD7745]] has one capacitance input channel, while the [[adi>AD7746]] has two channels. Each channel can be configured as single-ended or differential. The [[adi>AD7745]]/[[adi>AD7746]] are designed for floating capacitive sensors. For capacitive sensors with one plate connected to ground, the [[adi>AD7747]] is recommended.
 +
 +The parts have an on-chip temperature sensor with a resolution of 0.1°C and accuracy of ±2°C. The on-chip voltage reference and the on-chip clock generator eliminate the need for any external components in capacitive sensor applications. The parts have a standard voltage input, which together with the differential reference input allows easy interface to an external temperature sensor, such as an RTD, thermistor, or diode.
 +
 +The [[adi>AD7745]]/[[adi>AD7746]] have a 2-wire, I2C-compatible serial interface. Both parts can operate with a single power supply from 2.7 V to 5.25 V. They are specified over the automotive temperature range of –40°C to +125°C and are housed in a 16-lead TSSOP package.
 +
 +== Applications ==
 +Automotive, Industrial and Medical Systems for:
 +  * Pressure Measurement
 +  * Position Sensors
 +  * Level Sensors
 +  * Flowmeters
 +  * Humidity Sensors
 +  * Impurity Detection
 +
 +{{ :resources:tools-software:uc-drivers:ad7746_eval_ebz.jpg? |}}
 +
 The goal of this project (Microcontroller No-OS) is to be able to provide reference projects for lower end processors, which can't run Linux, or aren't running a specific operating system, to help those customers using microcontrollers with ADI parts. Here you can find a generic driver which can be used as a base for any microcontroller platform and also specific drivers for Renesas platforms. The goal of this project (Microcontroller No-OS) is to be able to provide reference projects for lower end processors, which can't run Linux, or aren't running a specific operating system, to help those customers using microcontrollers with ADI parts. Here you can find a generic driver which can be used as a base for any microcontroller platform and also specific drivers for Renesas platforms.
  
 **HW Platform(s):** **HW Platform(s):**
-  * [[http://am.renesas.com/products/tools/introductory_evaluation_tools/renesas_demo_kits/yrdkrl78g13/index.jsp|Renesas Demo Kit for RL78G13 (Renesas)]]+  * [[https://www.renesas.com/us/en/products/microcontrollers-microprocessors/rl78-low-power-8-16-bit-mcus/yrdkrl78g13-yrdkrl78g13-demonstration-kit-rl78g13|Renesas Demo Kit for RL78G13 (Renesas)]]
  
 ===== Driver Description ===== ===== Driver Description =====
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 ==== Required Hardware ==== ==== Required Hardware ====
-  * [[http://am.renesas.com/products/tools/introductory_evaluation_tools/renesas_demo_kits/yrdkrl78g13/index.jsp|Renesas Demo Kit for RL78G13 (Renesas)]]+  * [[https://www.renesas.com/us/en/products/microcontrollers-microprocessors/rl78-low-power-8-16-bit-mcus/yrdkrl78g13-yrdkrl78g13-demonstration-kit-rl78g13|Renesas Demo Kit for RL78G13 (Renesas)]]
   * [[adi>AD7746|EVAL-AD7746EBZ(ADI)]]   * [[adi>AD7746|EVAL-AD7746EBZ(ADI)]]
  
 ==== Required Software ==== ==== Required Software ====
   * [[http://www.iar.com/en/Products/IAR-Embedded-Workbench/Renesas-RL78/|IAR Embedded Workbench for Renesas RL78 Kickstart]]   * [[http://www.iar.com/en/Products/IAR-Embedded-Workbench/Renesas-RL78/|IAR Embedded Workbench for Renesas RL78 Kickstart]]
-  * [[http://am.renesas.com/|Applilet3 for RL78G13]]+  * [[https://www.renesas.com/us/en/software-tool/ap4-applilet|Applilet4 for RL78G13]]
  
 ==== Hardware Setup ==== ==== Hardware Setup ====
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 ==== Software Project Setup ==== ==== Software Project Setup ====
 {{page>rl78g13_software_tutorial}} {{page>rl78g13_software_tutorial}}
 +
 +====== More information ======
 +{{page>more-information}}
resources/tools-software/uc-drivers/renesas/ad7746.1336738838.txt.gz · Last modified: 11 May 2012 14:20 by Dragos Bogdan

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