AD7322BRUZ

更新时间： 2024-02-08 05:23:54

品牌	Logo	应用领域
亚德诺 - ADI		转换器模数转换器光电二极管 PC
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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AD7322BRUZ 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	TSSOP
包装说明：	ROHS COMPLIANT, MO-153AB-1, TSSOP-14	针数：	14
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.43
Is Samacsys：	N	最大模拟输入电压：	10 V
最小模拟输入电压：	-10 V	最长转换时间：	0.8 µs
转换器类型：	ADC, SUCCESSIVE APPROXIMATION	JESD-30 代码：	R-PDSO-G14
JESD-609代码：	e3	长度：	5 mm
最大线性误差 (EL)：	0.0269%	湿度敏感等级：	1
模拟输入通道数量：	2	位数：	12
功能数量：	1	端子数量：	14
最高工作温度：	85 °C	最低工作温度：	-40 °C
输出位码：	BINARY, 2'S COMPLEMENT BINARY	输出格式：	SERIAL
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装等效代码：	TSSOP14,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
电源：	3/5,-+12/-+16.5 V	认证状态：	Not Qualified
采样速率：	1 MHz	采样并保持/跟踪并保持：	TRACK
座面最大高度：	1.2 mm	子类别：	Analog to Digital Converters
标称供电电压：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	4.4 mm
Base Number Matches：	1

AD7322BRUZ 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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