Datasheet AD7790 (Analog Devices)
| Hersteller | Analog Devices |
| Beschreibung | 16-Bit, Single-Channel, Ultra Low Power, Sigma Delta A/D Converter |
| Seiten / Seite | 6 / 1 — Key Sheet. AD7790 |
| Dateiformat / Größe | PDF / 127 Kb |
| Dokumentensprache | Englisch |
Key Sheet. AD7790
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Key Sheet AD7790 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com Highlights of the AD7790— Low Power, 16-Bit, Buffered Sigma-Delta ADC GND V REFIN DD VDD INTERNAL CLOCK 16-BIT SERIAL AIN DIGITAL BUF ADC INTERFACE PGA
001
AD7790 GND
11264- Figure 1. Functional Block Diagram
GENERAL DESCRIPTION FEATURES AND BENEFITS
This key sheet1 provides users with an overview of the AD7790. The AD7790 offers the following features and benefits: Key attributes of the part include the fol owing: • Simultaneous 50 Hz and 60 Hz rejection at 16.6 SPS ODR • Designed for the measurement of wide dynamic range, low • Optional internal rail-to-rail input buffer frequency signals, such as those in pressure transducers, weigh • Three MCLK divide options, allowing further reduction in scales, and temperature measurement applications. power dissipation • Low power, flexible, high performance, low noise, 16-bit • Ultralow noise performance across the ODR range sigma-delta (Σ-Δ) ADC suitable for converting low input • Fully compatible with SPI, QSPI™, MICROWIRE®, and DSP bandwidth analog signals with a fully flexible output data • SPI configuration control rate (ODR) between 9.5 SPS and 120 SPS. • 3-wire serial digital interface (Schmitt trigger on SCLK) • Single fully differential analog channel with ultralow power consumption. • With an ODR of 9.5 SPS, the AD7790 boasts an rms noise of 1.1 µV. • User friendly, with the part being fully configurable over a 4-wire serial interface. • Available in a 10-lead MSOP package, allowing a reduced board size. 1 This document provides users with an overview of the AD7790; it is not a notice of performance or intent. Refer to the AD7790 data sheet for performance and more specific information about this product.
Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2013 Analog Devices, Inc. All rights reserved.
Document Outline General Description Features and Benefits Key Characteristics Fundamental Specifications Noise Operating the AD7790 Data Interface Data Modes Continuous Conversion Mode (Default) Continuous Read Mode Single Conversion Mode Typical Application Diagram Frequently Asked Questions Learn More and Start Designing Compatible Devices Package Diagram Getting Started
001
AD7790 GND
11264- Figure 1. Functional Block Diagram
GENERAL DESCRIPTION FEATURES AND BENEFITS
This key sheet1 provides users with an overview of the AD7790. The AD7790 offers the following features and benefits: Key attributes of the part include the fol owing: • Simultaneous 50 Hz and 60 Hz rejection at 16.6 SPS ODR • Designed for the measurement of wide dynamic range, low • Optional internal rail-to-rail input buffer frequency signals, such as those in pressure transducers, weigh • Three MCLK divide options, allowing further reduction in scales, and temperature measurement applications. power dissipation • Low power, flexible, high performance, low noise, 16-bit • Ultralow noise performance across the ODR range sigma-delta (Σ-Δ) ADC suitable for converting low input • Fully compatible with SPI, QSPI™, MICROWIRE®, and DSP bandwidth analog signals with a fully flexible output data • SPI configuration control rate (ODR) between 9.5 SPS and 120 SPS. • 3-wire serial digital interface (Schmitt trigger on SCLK) • Single fully differential analog channel with ultralow power consumption. • With an ODR of 9.5 SPS, the AD7790 boasts an rms noise of 1.1 µV. • User friendly, with the part being fully configurable over a 4-wire serial interface. • Available in a 10-lead MSOP package, allowing a reduced board size. 1 This document provides users with an overview of the AD7790; it is not a notice of performance or intent. Refer to the AD7790 data sheet for performance and more specific information about this product.
Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2013 Analog Devices, Inc. All rights reserved.
Document Outline General Description Features and Benefits Key Characteristics Fundamental Specifications Noise Operating the AD7790 Data Interface Data Modes Continuous Conversion Mode (Default) Continuous Read Mode Single Conversion Mode Typical Application Diagram Frequently Asked Questions Learn More and Start Designing Compatible Devices Package Diagram Getting Started