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AD7324 Dataheets PDF



Part Number AD7324
Manufacturers Analog Devices
Logo Analog Devices
Description 12-Bit Plus Sign ADC
Datasheet AD7324 DatasheetAD7324 Datasheet (PDF)

www.DataSheet4U.com 4-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC AD7324 FEATURES 12-bit plus sign SAR ADC True bipolar input ranges Software-selectable input ranges ±10 V, ±5 V, ±2.5 V, 0 V to +10 V 1 MSPS throughput rate Four analog input channels with channel sequencer Single-ended, true differential, and pseudo differential analog input capability High analog input impedance Low power: 21 mW Full power signal bandwidth: 22 MHz Internal 2.5 V reference High speed s.

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www.DataSheet4U.com 4-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC AD7324 FEATURES 12-bit plus sign SAR ADC True bipolar input ranges Software-selectable input ranges ±10 V, ±5 V, ±2.5 V, 0 V to +10 V 1 MSPS throughput rate Four analog input channels with channel sequencer Single-ended, true differential, and pseudo differential analog input capability High analog input impedance Low power: 21 mW Full power signal bandwidth: 22 MHz Internal 2.5 V reference High speed serial interface Power-down modes 16-lead TSSOP package iCMOS™ process technology FUNCTIONAL BLOCK DIAGRAM VDD REFIN/OUT VCC AD7324 2.5V VREF I/P MUX T/H VIN0 VIN1 VIN2 VIN3 13-BIT SUCCESSIVE APPROXIMATION ADC DOUT CHANNEL SEQUENCER CONTROL LOGIC AND REGISTERS SCLK CS DIN VDRIVE AGND VSS DGND 04864-001 Figure 1. GENERAL DESCRIPTION The AD7324 is a 4-channel, 12-bit plus sign, successive approximation ADC designed on the iCMOS (industrial CMOS) process. iCMOS is a process combining high voltage silicon with submicron CMOS and complementary bipolar technologies. It enables the development of a wide range of high performance analog ICs capable of 33 V operation in a footprint that no previous generation of high voltage parts could achieve. Unlike analog ICs using conventional CMOS processes, iCMOS components can accept bipolar input signals while providing increased performance, dramatically reduced power consumption, and reduced package size. The AD7324 can accept true bipolar analog input signals. The AD7324 has four software-selectable input ranges, ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V. Each analog input channel can be independently programmed to one of the four input ranges. The analog input channels on the AD7324 can be programmed to be single-ended, true differential, or pseudo differential. The ADC contains a 2.5 V internal reference. The AD7324 also allows for external reference operation. If a 3 V reference is applied to the REFIN/OUT pin, the AD7324 can accept a true bipolar ±12 V analog input. Minimum ±12 V VDD and VSS supplies are required for the ±12 V input range. The ADC has a high speed serial interface that can operate at throughput rates up to 1 MSPS. 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 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 owners. 1 PRODUCT HIGHLIGHTS 1. 2. The AD7324 can accept true bipolar analog input signals, ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V unipolar signals. The four analog inputs can be configured as four singleended inputs, two true differential input pairs, two pseudo differential inputs, or three pseudo differential i.


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