Datasheet > EVAL-AD7322CBZ

EVAL-AD7322CBZ

更新时间： 2024-12-01 12:53:47

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
36页	592K
描述
2-Channel, Software-Selectable, True Bipolar Input, 1 MSPS, 12-Bit Plus Sign ADC

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EVAL-AD7322CBZ 数据手册

2-Channel, Software-Selectable, True

Bipolar Input, 1 MSPS, 12-Bit Plus Sign ADC

AD7322

FUNCTIONAL BLOCK DIAGRAM

FEATURES

REFIN/OUT

12-bit plus sign SAR ADC

True bipolar input ranges

AD7322

Software-selectable input ranges

10 V, 5 V, 2.5 V, 0 V to +10 V

1 MSPS throughput rate

Two analog input channels with channel sequencer

Single-ended, true differential, and pseudo differential

analog input capability

2.5V

VREF

13-BIT

I/P

MUX

SUCCESSIVE

APPROXIMATION

ADC

T/H

High analog input impedance

Low power: 21 mW

Full power signal bandwidth: 22 MHz

Internal 2.5 V reference

DOUT

SCLK

CONTROL LOGIC

AND REGISTERS

CHANNEL

SEQUENCER

DIN

High speed serial interface

Power-down modes

DRIVE

14-lead TSSOP package

AGND

DGND

iCMOS process technology

Figure 1.

GENERAL DESCRIPTION

PRODUCT HIGHLIGHTS

The AD7322¹is a 2-channel, 12-bit plus sign, successive approx-

imation analog-to-digital converter (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 develop-

ment 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.

1. The AD7322 can accept true bipolar analog input signals,

±1ꢀ V, ±± V, and ±2.± V, and ꢀ V to +1ꢀ V unipolar signals.

2. The two analog inputs can be configured as two single-

ended inputs, one true differential input, or one pseudo

differential input.

3. 1 MSPS serial interface. SPI-/QSPI™-/DSP-/MICROWIRE™-

compatible interface.

4. Low power, 31 mW maximum, at 1 MSPS throughput rate.

±. Channel sequencer.

Table 1. Similar Devices

Device

Number Rate

Throughput

Number of

Channels

The AD7322 can accept true bipolar analog input signals. The

AD7322 has four software-selectable input ranges, ±1ꢀ V, ±± V,

±2.± V, and ꢀ V to +1ꢀ V. Each analog input channel can be

independently programmed to one of the four input ranges.

The analog input channels on the AD7322 can be programmed

to be single-ended, true differential, or pseudo differential.

Number of bits

12-bit plus sign

AD7329

AD7328

AD7327

AD7324

AD7323

AD7321

1000 kSPS

500 kSPS

1000 kSPS

500 kSPS

The ADC contains a 2.± V internal reference. The AD7322 also

allows for external reference operation. If a 3 V reference is

applied to the REFIN/OUT pin, the AD7322 can accept a true

bipolar ±12 V analog input. Minimum ±12 V V_DDand V_SS

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.

¹Protected by U.S. Patent No. 6,731,232.

Rev. A

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 registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700 www.analog.com

12 3 4 5 6 7...36

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与EVAL-AD7322CBZ相关器件

型号	品牌	获取价格	描述	数据表
EVAL-AD7323CB	ADI	获取价格	500 kSPS, 4-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC
EVAL-AD7324CB	ADI	获取价格	4-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC
EVAL-AD7327CB	ADI	获取价格	500 kSPS, 8-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC
EVAL-AD7328CB	ADI	获取价格	8-Channel, Software-Selectable True Bipolar Input, 12-Bit Plus Sign ADC
EVAL-AD7329SDZ	ADI	获取价格	1 MSPS, 8-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC
EVAL-AD73311EB	ADI	获取价格	Low Cost, Low Power CMOS General Purpose Analog Front End
EVAL-AD73311EZ	ADI	获取价格	Low Cost, Low Power CMOS General Purpose Analog Front End
EVAL-AD73311LEB	ADI	获取价格	Low Cost, Low Power CMOS General Purpose Analog Front End
EVAL-AD73322EB	ADI	获取价格	EvaluationBoardforLowCost,LowPower, CMOSGerneralPurposeDualAnalogFrontEnd
EVAL-AD73322EZ	ADI	获取价格	Low Cost, Low Power CMOS General-Purpose Dual Analog Front End

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