Datasheet > AD8284WCSVZ-RL

AD8284WCSVZ-RL

更新时间： 2024-01-15 22:38:02

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
29页	685K
描述
Radar Receive Path AFE: 4-Channel MUX with LNA, PGA, AAF, and ADC

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AD8284WCSVZ-RL 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFP
包装说明：	HTFQFP,	针数：	64
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.57
其他特性：	ALSO OPERATES WITH SUPPLY VOLTAGE 3.1 TO 3.5V	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
JESD-30 代码：	S-PQFP-G64	长度：	10 mm
湿度敏感等级：	3	功能数量：	1
端子数量：	64	最高工作温度：	105 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HTFQFP	封装形状：	SQUARE
封装形式：	FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH	峰值回流温度（摄氏度）：	260
座面最大高度：	1.2 mm	最大供电电压 (Vsup)：	1.9 V
最小供电电压 (Vsup)：	1.7 V	标称供电电压 (Vsup)：	1.8 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	30	宽度：	10 mm
Base Number Matches：	1

AD8284WCSVZ-RL 数据手册

Radar Receive Path AFE: 4-Channel Mux

with LNA, PGA, AAF, and ADC

Data Sheet

AD8284

FEATURES

FUNCTIONAL BLOCK DIAGRAM

4-channel mux to LNA, PGA, AAF

1 direct-to-ADC channel

Programmable gain amplifier (PGA)

Includes low noise preamplifier (LNA)

SPI-programmable gain = 17 dB to 35 dB in 6 dB steps

Antialiasing filter (AAF)

Programmable third-order low-pass elliptic filter (LPF) from

9 MHz to 15 MHz

Analog-to-digital converter (ADC)

12 bits of accuracy of up to 60 MSPS

SNR = 67 dB

REFERENCE

INA+

INA–

AD8284

SATURATION

DETECTION

INB+

INB–

MUX

LNA

PGA

AAF

INC+

INC–

SFDR = 68 dBc

D11

12-BIT

ADC

MUX

Low power, 345 mW at 12 bits per 60 MSPS

Low noise, 3.5 nV/√Hz maximum of input referred

voltage noise

IND+

IND–

INADC+

INADC–

Power-down mode

64-lead, 10 mm × 10 mm TQFP package

Specified from −40°C to +105°C

Qualified for automotive applications

SPI

APPLICATIONS

Automotive radar

Adaptive cruise control

Collision avoidance

Blind spot detection

Self parking

Figure 1.

Electronic bumper

GENERAL DESCRIPTION

The AD8284 is an integrated analog front end designed for low

cost, compact size, flexibility, and ease of use. It contains a

4-channel differential multiplexer (mux), a 1-channel low noise

preamplifier (LNA) with a programmable gain amplifier (PGA)

and an antialiasing filter (AAF), as well as one direct-to-ADC

channel, all integrated with a single, 12-bit analog-to-digital

converter (ADC). The AD8284 also incorporates a saturation

detection circuit for high frequency overvoltage conditions that

would otherwise be filtered by the AAF.

for dynamic performance and low power in applications where

a small package size is critical.

Fabricated in an advanced CMOS process, the AD8284 is available

in a 10 mm × 10 mm, RoHS compliant, 64-lead TQFP. It is speci-

fied over the automotive temperature range of −40°C to +105°C.

Table 1. Related Devices

Part No.

Description

AD8285

4-Channel LNA/PGA/AAF, pseudosimultaneous

channel sampling with ADC

The analog channel features a gain range of 17 dB to 35 dB in

6 dB increments, and an ADC with a conversion rate of up to

60 MSPS. The combined input referred voltage noise of the entire

channel is 3.5 nV/√Hz at maximum gain. The channel is optimized

AD8283

6-Channel LNA/PGA/AAF, pseudosimultaneous

channel sampling with ADC

ADA8282 4-Channel LNA/PGA

Rev. D

Document Feedback

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

rightsof third parties that may result fromits 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 andregisteredtrademarks are the property of their respective owners.

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

Technical Support

www.analog.com

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