Motore di ricerca datesheet componenti elettronici |
|
AD7441BRT Scheda tecnica(PDF) 1 Page - Analog Devices |
|
AD7441BRT Scheda tecnica(HTML) 1 Page - Analog Devices |
1 / 15 page REV. PrC 24/05/02 PreliminaryTechnicalData PRELIMINARY TECHNICAL DATA 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a AD7451/AD7441 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 © Analog Devices, Inc., 2002 Pseudo Differential, 1MSPS, 12- & 10-Bit ADCs in 8-lead SOT-23 FEATURES Fast Throughput Rate: 1MSPS Specified for VDD of 2.7 V to 5.25 V Low Power at max Throughput Rate: 3.75 mW typ at 1MSPS with VDD = 3 V 9 mW typ at 1MSPS with VDD = 5 V Pseudo Differential Analog Input Wide Input Bandwidth: 70dB SINAD at 300kHz Input Frequency Flexible Power/Serial Clock Speed Management No Pipeline Delays High Speed Serial Interface - SPITM/QSPITM/ MICROWIRETM/ DSP Compatible Power-Down Mode: 1µA max 8 Pin SOT-23 and µSOIC Packages APPLICATIONS Transducer Interface Battery Powered Systems Data Acquisition Systems Portable Instrumentation Motor Control Communications GENERAL DESCRIPTION The AD7451/AD7441 are respectively 12- and 10-bit, high speed, low power, successive-approximation (SAR) analog-to-digital converters that feature a pseudo differen- tial analog input. These parts operate from a single 2.7 V to 5.25 V power supply and feature throughput rates up to 1MSPS. The parts contains a low-noise, wide bandwidth, differen- tial track and hold amplifier (T/H) which can handle input frequencies in excess of 1MHz with the -3dB point being 20MHz typically. The reference voltage is 2.5 V and is applied externally to the VREF pin. The conversion process and data acquisition are controlled using CS and the serial clock allowing the device to inter- face with Microprocessors or DSPs. The input signals are sampled on the falling edge of CS and the conversion is also initiated at this point. The SAR architecture of these parts ensures that there are no pipeline delays. FUNCTIONAL BLOCK DIAGRAM The AD7451/41 use advanced design techniques to achieve very low power dissipation at high throughput rates. PRODUCT HIGHLIGHTS 1.Operation with 2.7 V to 5.25 V power supplies. 2.High Throughput with Low Power Consumption. With a 3V supply, the AD7451/41 offer 3.75mW typ power consumption for 1MSPS throughput. 3.Pseudo Differential Analog Input. The VIN- input can be used as an offset from ground 4.Flexible Power/Serial Clock Speed Management. The conversion rate is determined by the serial clock, allowing the power to be reduced as the conversion time is reduced through the serial clock speed increase. These parts also feature a shutdown mode to maximize power efficiency at lower throughput rates. 5.No Pipeline Delay. 6.Accurate control of the sampling instant via a CS input and once off conversion control. MICROWIRE is a trademark of National Semiconductor Corporation. SPI and QSPI are trademarks of Motorola, Inc. 12-BIT SUCCESSIVE APPROXIMATION ADC CONTROL LOGIC AD7451/ AD7441 VIN+ VIN- VREF GND SCLK SDATA +5 VDD T/H |
Codice articolo simile - AD7441BRT |
|
Descrizione simile - AD7441BRT |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |