Electronic Components Datasheet Search |
|
AD7322 Datasheet(PDF) 1 Page - ATMEL Corporation |
|
AD7322 Datasheet(HTML) 1 Page - ATMEL Corporation |
1 / 18 page Software Selectable True Bipolar Input, 2-Channel, 12-Bit Plus Sign ADC Preliminary Technical Data AD7322* FEATURES • 12-Bit Plus Sign SAR ADC • True Bipolar Analog Inputs • Software Selectable Input Ranges ± 10V, ± 5V, ± 2.5V, 0 to 10V • Two Analog Inputs with Channel Sequencer • Single Ended, True Differential and Pseudo Differential Capability. • High Analog Input Impedance • Low Power:- 6 mW • Full Power Signal Bandwidth: >13 MHz • Internal 2.5 V Reference • High Speed Serial Interface • Power Down Modes • 14-Lead TSSOP • For 8 and 4 channel equivalent devices see AD7328 and AD7324 respectively. GENERAL DESCRIPTION The AD7322 is a 2-Channel, 12-Bit Plus Sign, 1 MSPS Successive Approximation ADC. The ADC has a high speed serial interface that can operate at throughput rates up to 1 MSPS. The AD7322 can handle True Bipolar Analog input signals. The Bipolar ranges are software selectable by programming the on board Range Register. Bipolar input ranges include ± 10V, ± 5V, ± 2.5V. The AD7322 can also handle a 0 to 10 V uniploar input range, which is also software selectable. Each analog input channel can be independently programmed to one of the input ranges by setting the appropriate bits in the Range Register. The Analog Input Channels can be configured as Single-Ended, Fully Differential or Pseudo Differential. Dedicated Control Register bits are used to configure the Analog inputs. The AD7322 contains a Channel Sequencer, allowing automatic conversions between each analog input channel. The ADC contains a 2.5V Internal reference. The AD7322 also allows for external Reference operation. If a 3V external reference is applied to the REFIN/OUT pin, the ADC can handle a True Bipolar ± 12 V Analog input range. Minimum VDD and VSS supplies of ± 12V are required for this ± 12 V input range. * Patent Pending FUNCTIONAL BLOCK DIAGRAM Figure 1. The Serial clock frequency, SCLK, applied to the ADC will determine the maximum throughput rate the ADC can operate at. The SCLK signal is used as the conversion clock and also to transfer data to and from the ADC. The Serial interface is SPITM, QSPITM, MICROWIRETM and DSP compatible. The AD7322 offers power down modes to reduce the power consumption of the ADC at lower throughput rates. PRODUCT HIGHLIGHTS 1. The AD7322 can accept True Bipolar Analog Input signals, ±10V, ±5V, ±2.5V and 0 to 10V unipolar signals. 2. The Two Analog Inputs can be configured as Two Single- Ended inputs, One True Differential or One Pseudo Differential Input. The AD7322 has high Impedance Analog Inputs. 3. The AD7322 features a High Speed Serial Interface. Throughput Rates up to 1 MSPS can be achieved on the AD7322. 4. Low Power, 12 mW at maximum throughput rate of 1 MSPS. 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. Rev. PrE |
Similar Part No. - AD7322 |
|
Similar Description - AD7322 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |