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AD8335ACPZ-REEL7

更新时间： 2024-01-01 18:50:26
品牌 Logo 应用领域
亚德诺 - ADI 消费电路商用集成电路放大器
页数 文件大小 规格书
24页 887K
描述
Quad Low Noise, Low Cost Variable Gain Amplifier

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AD8335ACPZ-REEL7 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：QFN
包装说明：HVQCCN,针数：64
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.31.00.01风险等级：5.06
Is Samacsys：N商用集成电路类型：CONSUMER CIRCUIT
JESD-30 代码：S-XQCC-N64JESD-609代码：e3
长度：9 mm湿度敏感等级：3
功能数量：1端子数量：64
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：HVQCCN
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：4.5 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：NO LEAD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：40
宽度：9 mmBase Number Matches：1

AD8335ACPZ-REEL7 数据手册

 浏览型号AD8335ACPZ-REEL7的Datasheet PDF文件第2页浏览型号AD8335ACPZ-REEL7的Datasheet PDF文件第3页浏览型号AD8335ACPZ-REEL7的Datasheet PDF文件第4页浏览型号AD8335ACPZ-REEL7的Datasheet PDF文件第5页浏览型号AD8335ACPZ-REEL7的Datasheet PDF文件第6页浏览型号AD8335ACPZ-REEL7的Datasheet PDF文件第7页 
Quad Low Noise, Low Cost  
Variable Gain Amplifier  
AD8335  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
Low noise preamplifier (PrA)  
Voltage noise = 1.3 nV/√Hz typical  
Current noise = 2.4 pA/√Hz typical  
NF = 7 dB (RS = RIN = 50 Ω)  
Single-ended input; VIN max = 625 mV p-p  
Active input match  
Input SNR (noise bandwidth = 20 MHz) = 92 dB  
VGA  
Differential output  
61 60  
59 58  
53 55  
52  
51  
49  
47  
VOH1  
PIP1 63  
ATTEN  
–48dB TO  
0dB  
20dB  
TO  
28dB  
VMD1  
18dB  
PMD1 64  
46  
VOL1  
VGN1  
SL12  
VGN2  
PMD2  
PIP2  
1
2
4
5
6
7
INTERPOLATOR GAIN INT 56  
50  
VMD2  
18dB  
PON2  
POP2  
VIP2  
INTERPOLATOR GAIN INT 54  
VOUT max = 5 V p-p, RL = 500 Ω differential  
43  
VOL2  
Gain range (8 dB output gain step)  
−10 dB to +38 dB—LO gain mode  
−2 dB to +46 dB—HI gain mode  
Accurate linear-in-dB gain control  
PrA + VGA performance  
−3 dB bandwidth of 70 MHz  
Excellent overload performance  
Supply: 5 V  
ATTEN  
–48dB TO  
0dB  
20dB  
TO  
28dB  
VIN2  
42  
39  
VOH2  
VOH3  
AD8335  
VIN3 10  
VIP3 11  
ATTEN  
–48dB TO  
0dB  
20dB  
TO  
28dB  
38  
VOL3  
VGN3  
POP3 12  
PON3 13  
GAIN INT 27  
31  
INTERPOLATOR  
INTERPOLATOR  
Power consumption  
SL34  
VGN4  
VOL4  
PIP3 15  
95 mW/channel (380 mW total)  
65 mW/channel (PrA off; 260 mW total)  
Power-down  
VMD3  
VMD4  
18dB  
18dB  
25  
35  
GAIN INT  
PMD3 16  
PMD4 17  
PIP4 18  
ATTEN  
–48dB TO  
0dB  
20dB  
TO  
28dB  
34  
VOH4  
APPLICATIONS  
Medical imaging (ultrasound, gamma cameras)  
20 21  
22  
23 28 26  
29  
30  
32  
Sonar  
Test and measurement  
Figure 1.  
Precise, stable wideband gain control  
GENERAL DESCRIPTION  
The AD8335 is a quad variable gain amplifier (VGA) with low  
noise preamplifier intended for cost and power sensitive  
applications. Each channel features a gain range 48 dB, fully  
differential signal paths, active input preamplifier matching, and  
user-selectable maximum gains of 46 dB and 38 dB. Individual  
gain controls are provided for each channel.  
Assuming a 20 MHz noise bandwidth (NBW), the Nyquist  
frequency for a 40 MHz ADC, the input SNR is 92 dB. The  
HILO pin optimizes the output SNR for 10-bit and 12-bit  
ADCs with 1 V p-p or 2 V p-p full-scale (FS) inputs.  
Channels 1 and 2 are enabled through the EN12 pin while  
Channels 3 and 4 are enabled through the EN34 pin. For VGA  
only applications, the PrAs can be powered down, significantly  
reducing power consumption.  
The preamplifier (PrA) has a single-ended to differential gain  
of ×8 (18.06 dB) and accepts input signals ≤ 625 mV p-p. PrA  
noise is 1.2 nV/√Hz and the combined input referred voltage  
noise of the PrA and VGA is 1.3 nV/√Hz at maximum gain.  
The AD8335 is available in a 64-lead lead frame chip scale  
(9 mm × 9 mm) package for the industrial temperature range  
of −40°C to +85°C.  
Rev. 0  
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  
registered trademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.326.8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  
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