PDF AD7400 Data sheet ( Hoja de datos )

Número de pieza	AD7400
Descripción	Isolated Sigma-Delta Modulator
Fabricantes	Analog Devices
Logotipo
Hay una vista previa y un enlace de descarga de AD7400 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas
No Preview Available ! Preliminary Technical Data FEATURES Up to 20 MHz Data Rate (AD7401) 10 MHz Data Rate (AD7400) 2nd Order Modulator ±4 LSB INL @16 Bits Onboard Digital Isolator Onboard Reference Low Power Operation: 15 mA @ 5 V -40ЊC to +105ЊC Operating Range 16-ld SOIC Package Safety and Regulatory Approvals UL Recognition 3750 VRMS for 1 minute per UL 1577 CSA Component Acceptance Notice ~5A VDE Certificate of Conformity DIN EN 60747-5-2 (VDE 0884 Part 2):2003-01 DIN EN 60950 (VDE 0805): 2001-12; EN 60950:2000 VIORM = 840VPEAK Isolated Sigma-Delta Modulator AD7400/AD7401 APPLICATIONS AC Motor Control Data Acquisition Systems A/D + Opto-Isolator Replacement GENERAL DESCRIPTION The AD7400/AD7401 are 2nd order sigma-delta modulators that convert an analog input signal into a high speed 1-bit data stream with onboard digital isolation based on Analog Devices’ iCoupler® technology. The AD7400/AD7401 operate from a 5 V power supply and accept a differential input signal of ±200 mV. The analog input is continuously sampled by the analog modulator, eliminating the need for external sample and hold circuitry. The input information is contained in the output stream as a density of ones with data rates up to 20MHz. The original information can be reconstructed with an appropriate digital filter. The serial I/O may use a 5V or 3V supply (VDD2). The serial interface is digitally isolated. High-speed CMOS, FUNCTIONAL BLOCK DIAGRAM VDD1 VDD2 VIN+ VIN- T/H Σ-∆ ADC BUF REF CONTROL LOGIC UPDATE ENCODE UPDATE ENCODE WATCHDOG DECODE WATCHDOG DECODE MDAT MCLKOUT* *MCLKIN pin on AD7401 GND1 GND2 Rev. PrH 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 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved. 1 page Preliminary Technical Data AD7400/AD7401 TIMING SPECIFICATIONS1 Table 3. AD7400/AD7401 Timing Specifications (VDD1 = VDD2 = 4.5V to 5.5V, TA = TMAX to TMIN unless otherwise noted.) Parameter Limit at TMIN, TMAX Unit Description FMCLKOUT 10 MHz typ AD7400 8.2/13.2 MHz min/max TMCLKIN2 1 MHz min AD7401 20 MHz max t13 30 ns max Data Access Time after MCLK Rising Edge t23 15 ns min Data Hold Time after MCLK Rising Edge t3 0.4 x tMCLKIN ns max Master Clock Low Time t4 0.4 x tMCLKIN ns max Master Clock High Time NOTES 1 Sample tested @ 25ЊC to ensure compliance. All input signals are specified with tr = tf = 5ns (10% to 90% of VDD1) and timed form a voltage level of 1.6 Volts. See Figure 1. 2 Mark Space ratio for the MCLKIN input is 40/60 to 60/40. 3 Measured with the load circuit of Figure 1 and defined as the time required for the output to cross 0.8V or 2.0V. 200µA IOL TO OUTPUT PIN CL 50pF 200µA IOH +1.6V Figure 1. Load Circuit for Digital Output Timing Specifications MCLKIN / MCLKOUT MDAT t4 t1 t2 t3 Figure 2. Data Timing Rev. PrH \| Page 5 of 10 5 Page

Páginas	Total 10 Páginas
PDF Descargar	[ Datasheet AD7400.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
AD7400	Isolated Sigma-Delta Modulator	Analog Devices
AD7400A	Isolated Sigma-Delta Modulator	Analog Devices
AD7401	Isolated Sigma-Delta Modulator	Analog Devices
AD7401A	Isolated Sigma-Delta Modulator	Analog Devices

Número de pieza	Descripción	Fabricantes
SLA6805M	High Voltage 3 phase Motor Driver IC.	Sanken
SDC1742	12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.	Analog Devices

DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.

DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar