AD8337-EVALZ

更新时间： 2024-02-27 08:38:34

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
24页	800K
描述
General-Purpose, Low Cost, DC-Coupled VGA

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AD8337-EVALZ 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SON
包装说明：	VSON,	针数：	8
Reach Compliance Code：	unknown	风险等级：	5.58
Is Samacsys：	N	其他特性：	ALSO OPERATE WITH 4.5V TO 10V SINGLE SUPPLY
模拟集成电路 - 其他类型：	ANALOG CIRCUIT	JESD-30 代码：	S-XDSO-N8
JESD-609代码：	e3	长度：	3 mm
湿度敏感等级：	3	负电源电压最大值（Vsup）：	-2.25 V
负电源电压最小值（Vsup）：	-5 V	标称负供电电压 (Vsup)：	-2.5 V
功能数量：	1	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	UNSPECIFIED	封装代码：	VSON
封装形状：	SQUARE	封装形式：	SMALL OUTLINE, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	座面最大高度：	0.9 mm
最大供电电压 (Vsup)：	5 V	最小供电电压 (Vsup)：	2.25 V
标称供电电压 (Vsup)：	2.5 V	表面贴装：	YES
技术：	BIPOLAR	温度等级：	INDUSTRIAL
端子面层：	MATTE TIN	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	3 mm
Base Number Matches：	1

AD8337-EVALZ 数据手册

General-Purpose, Low Cost,

DC-Coupled VGA

AD8337

FUNCTIONAL BLOCK DIAGRAM

FEATURES

VPOS

Low noise

Voltage noise = 2.2 nV/√Hz

AD8337

Current noise = 4.8 pA/√Hz (positive input)

Wide bandwidth (−3 dB) = 280 MHz

Nominal gain range: 0 dB to 24 dB (preamp gain = 6 dB)

Gain scaling: 19.7 dB/V

GAIN CONTROL

INTERFACE

GAIN

18dB

1 VOUT

PREAMP

(PRA)

DC-coupled

8 SECTIONS

–

INPP

INPN

Single-ended input and output

High speed uncommitted op amp input

Supplies: +5 V, 2.5 V, or 5 V

Low power: 78 mW with 2.5 V supplies

VCOM

PRAO

VNEG

Figure 1.

APPLICATIONS

Gain trim

PET scanners

High performance AGC systems

I/Q signal processing

Video

Industrial and medical ultrasound

Radar receivers

GENERAL DESCRIPTION

The AD8337 includes an uncommitted operational current-

feedback preamplifier (PrA) that operates in inverting or

noninverting configurations. Using external resistors, the

device can be configured for gains of 6 dB or greater. The

AD8337 is characterized by a noninverting PrA gain of 2× using

two external 100 Ω resistors. The attenuator has a range of

24 dB, and the output amplifier has a fixed gain of 8× (18.06 dB).

The lowest nominal gain range is 0 dB to 24 dB and can

be shifted up or down by adjusting the preamp gain. Multiple

AD8337s can be connected in series for larger gain ranges, and

for interstage filtering to suppress noise and distortion, and for

nulling offset voltages.

The AD8337 is a low noise, single-ended, linear-in-dB, general-

purpose variable gain amplifier (VGA) usable at frequencies

from dc to 100 MHz; the −3 dB bandwidth is 280 MHz.

Excellent bandwidth uniformity across the entire gain range

and low output-referred noise makes the AD8337 ideal for

gain trim applications and for driving high speed analog-to-

digital converters (ADCs).

Excellent dc characteristics combined with high speed make

the AD8337 particularly suited for industrial ultrasound, PET

scanners, and video applications. Dual-supply operation enables

gain control of negative-going pulses such as generated by

photodiodes or photomultiplier tubes.

The operating temperature range is –40°C to +85°C, and it is

available in an 8-lead, 3 mm × 3 mm LFCSP.

The AD8337 uses the popular and versatile X-AMP® architecture,

exclusively from Analog Devices, Inc., with a gain range of 24 dB.

The gain control interface provides precise linear-in-dB scaling

of 19.7 dB/V, referenced to VCOM.

Rev. B

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

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