Datasheet > AD9271BSVZ-25

AD9271BSVZ-25

更新时间： 2024-10-28 03:18:23

品牌	Logo	应用领域
亚德诺 - ADI		开关
页数	文件大小	规格书
58页	1208K
描述
Octal LNA/VGA/AAF/ADC and Crosspoint Switch

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数据手册
替代型号

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AD9271BSVZ-25 数据手册

Octal LNA/VGA/AAF/ADC

and Crosspoint Switch

AD9271

Preliminary Technical Data

The LNA has a single-ended-to-differential gain that is selectable

through the SPI. The LNA input noise is typically 1.2 nV/√Hz,

FEATURES

8 channels of LNA, VGA, AAF, and ADC

Low noise preamplifier (LNA)

Input-referred noise = 1.2 nV/√Hz @ 7.5 MHz typical

SPI-programmable gain = 14 dB/15.6 dB/18 dB

Single-ended input; V_INmaximum = 400 mV p-p/

333 mV p-p/250 mV p-p

Dual mode, active input impedance match

Bandwidth (BW) > 70 MHz

FUNCTIONAL BLOCK DIAGRAM

LOSW-A

AD9271

LO-A

12-BIT

LI-A

DOUT + A

DOUT – A

SERIAL

LVDS

LNA

VGA

PIPELINE

ADC

LG-A

Full-scale (FS) output = 2 V p-p diff

Variable gain amplifier (VGA)

Gain range = −6 dB to +24 dB

AAF

LOSW-B

LO-B

12-BIT

PIPELINE

ADC

LI-B

DOUT + B

DOUT – B

SERIAL

LVDS

Linear-in-dB gain control

LG-B

LOSW-C

LO-C

Antialiasing filter (AAF)

3^rd-order Butterworth cutoff

12-BIT

PIPELINE

ADC

LI-C

DOUT + C

DOUT – C

SERIAL

LVDS

VGA

Programmable from 8 MHz to 18 MHz

Analog-to-digital converter (ADC)

12 bits at 10 MSPS to 50 MSPS

SNR = 70 dB

SFDR = 80 dB

Serial LVDS (ANSI-644, IEEE 1596.3 reduced range link)

Data and frame clock outputs

Includes crosspoint switch to support

continuous wave (CW) Doppler

Low power, 150 mW/channel at 12 bits/40 MSPS (TGC)

60 mW/channel in CW Doppler

Single 1.8 V supply (3.3 V supply for CW Doppler output bias)

Flexible power-down modes

Overload recovery in <10 ns

LG-C

LOSW-D

LO-D

12-BIT

PIPELINE

ADC

LI-D

DOUT + D

DOUT – D

SERIAL

LVDS

LG-D

LOSW-E

LO-E

12-BIT

PIPELINE

ADC

LI-E

DOUT + E

DOUT – E

SERIAL

LVDS

VGA

LG-E

LOSW-F

LO-F

12-BIT

PIPELINE

ADC

LI-F

DOUT + F

DOUT – F

SERIAL

LVDS

VGA

LG-F

LOSW-G

LO-G

12-BIT

PIPELINE

ADC

LI-G

DOUT + G

DOUT – G

SERIAL

LVDS

LG-G

Fast recovery from low power standby mode, <2 μs

100-pin TQFP

LO-H

LOSW-H

LI-H

12-BIT

PIPELINE

ADC

DOUT + H

DOUT – H

SERIAL

LVDS

VGA

LG-H

APPLICATIONS

g_m

Medical imaging/ultrasound

Automotive radar

FCO+

FCO–

DCO+

DCO–

REFERENCE

SWITCH

ARRAY

GENERAL DESCRIPTION

The AD9271 is designed for low cost, low power, small size, and

ease of use. It contains eight channels of a variable gain amplifier

(VGA) with low noise preamplifier (LNA); an antialiasing filter

(AAF); and a 12-bit, 10 MSPS to 50 MSPS analog-to-digital

converter (ADC).

Figure 1.Block Diagram

Each channel features a variable gain range of 30 dB, a fully

differential signal path, an active input preamplifier termination, a

maximum gain of up to 40 dB, and an ADC with a conversion

rate of up to 50 MSPS. The channel is optimized for dynamic

performance and low power in applications where a small

package size is critical.

and the combined input-referred noise of the entire channel

is 1.4 nV/√Hz at maximum gain. Assuming a 15 MHz noise

bandwidth (NBW) and a 15.6 dB LNA gain, the input SNR is

roughly 86 dB. In CW Doppler mode, the LNA output drives a

transconductance amp that is switched through an 8 × 6,

differential crosspoint switch. The switch is programmable

through the SPI.

Rev. PrA

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

Fax: 781.461.3113

www.analog.com

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中文翻译

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AD9271BSVZ-25 替代型号

型号	品牌	替代类型	描述	数据表
AD9271BSVZRL-40	ADI	类似代替	Octal LNA/VGA/AAF/ADC and Crosspoint Switch
AD9271BSVZ-50	ADI	类似代替	Octal LNA/VGA/AAF/ADC and Crosspoint Switch
AD9271BSVZ-40	ADI	类似代替	Octal LNA/VGA/AAF/ADC and Crosspoint Switch

与AD9271BSVZ-25相关器件

型号	品牌	获取价格	描述	数据表
AD9271BSVZ-40	ADI	获取价格	Octal LNA/VGA/AAF/ADC and Crosspoint Switch
AD9271BSVZ-50	ADI	获取价格	Octal LNA/VGA/AAF/ADC and Crosspoint Switch
AD9271BSVZRL-25	ADI	获取价格	Octal LNA/VGA/AAF/ADC and Crosspoint Switch
AD9271BSVZRL-40	ADI	获取价格	Octal LNA/VGA/AAF/ADC and Crosspoint Switch
AD9271BSVZRL-50	ADI	获取价格	Octal LNA/VGA/AAF/ADC and Crosspoint Switch
AD9271BSVZRL7-25	ADI	获取价格	Octal LNA/VGA/AAF/ADC and Crosspoint Switch
AD9271BSVZRL7-40	ADI	获取价格	Octal LNA/VGA/AAF/ADC and Crosspoint Switch
AD9271BSVZRL7-50	ADI	获取价格	Octal LNA/VGA/AAF/ADC and Crosspoint Switch
AD9272	ADI	获取价格	Octal LNA/VGA/AAF/ADC and Crosspoint Switch
AD9272_09	ADI	获取价格	Octal LNA/VGA/AAF/ADC and Crosspoint Switch

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