MPC57xx SAR ADC Implementation and Use
●Analog-to-Digital Converters (ADCs) are used in a rapidly increasing number of automotive applications. From simply monitoring DC voltages to supporting radar detection of obstacles in ADAS solutions, ADCs find wide acceptance in automotive Micro Controller Units (MCUs). The highly integrated MPC57xx MCUs on the market today incorporate high performance ADCs supporting up to 84 channels with various combinations of Sigma Delta (SD) ADC, enhanced queued eQADC, and Successive Approximation (SAR) ADC architectures in the same device. In these advanced MCUs, conversions from multiple types of analog inputs are supported in real time with a minimum of control required by the CPUs inside the MCU.
●Depending on the system application requirements, the MPC57xx devices use three different ADC architectures:
■eQADC (an RSD solution)
■Successive Approximation Register (SAR)
■Sigma Delta modulator (SD)
●The SAR is available in two speed variants - a 1 MSPS (Mega Samples Per Second) SAR and 400 KSPS (Kilo Samples Per Second) SAR.
●This application note discusses SAR ADC implementation and use in the MPC57xx family of devices. The document includes the following topics:
■MPC57xx Device Family ADC implementation
■MPC57xx SAR ADC features
■Designing for best ADC performance
■Calibrating the SAR to minimize gain error and offset error
■Initializing the SAR ADC
|
MPC57xx 、 MPC574xG 、 MPC577xK 、 MPC574xP 、 MPC5746M 、 MPC5777M 、 MPC5776C 、 MPC5746R |
|
|
|
|
|
Application note & Design Guide |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
|
|
|
English Chinese Chinese and English Japanese |
|
|
06/2014 |
|
|
Rev 0 |
|
|
AN4881 |
|
|
1.4 MB |
- +1 Like
- Add to Favorites
Recommend
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
