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AD8332ACPZ-R7 PDF预览

AD8332ACPZ-R7

更新时间: 2024-01-03 06:07:11
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
40页 876K
描述
Ultralow Noise VGAs with Preamplifier and Programmable RIN

AD8332ACPZ-R7 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:VQCCN,针数:32
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.31.00.01风险等级:0.69
商用集成电路类型:CONSUMER CIRCUITJESD-30 代码:S-XQCC-N32
JESD-609代码:e3长度:5 mm
湿度敏感等级:3功能数量:1
端子数量:32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:VQCCN封装形状:SQUARE
封装形式:CHIP CARRIER, 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:5 mm
Base Number Matches:1

AD8332ACPZ-R7 数据手册

 浏览型号AD8332ACPZ-R7的Datasheet PDF文件第2页浏览型号AD8332ACPZ-R7的Datasheet PDF文件第3页浏览型号AD8332ACPZ-R7的Datasheet PDF文件第4页浏览型号AD8332ACPZ-R7的Datasheet PDF文件第5页浏览型号AD8332ACPZ-R7的Datasheet PDF文件第6页浏览型号AD8332ACPZ-R7的Datasheet PDF文件第7页 
Ultralow Noise VGAs with  
Preamplifier and Programmable RIN  
AD8331/AD8332/AD8334  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
LON LOP VIP VIN  
VCM  
HILO  
Ultralow noise preamplifier  
Voltage noise = 0.74 nV/√Hz  
Current noise = 2.5 pA/√Hz  
3 dB bandwidth  
AD8331: 120 MHz  
3.5dB/15.5dB  
V
MID  
LNA  
INH  
ATTENUATOR  
VOH  
VOL  
+
48dB  
19dB  
21dB  
PA  
LMD  
+
AD8332, AD8334: 100 MHz  
Low power  
AD8331: 125 mW/channel  
CLAMP  
GAIN  
LNA VCM  
BIAS  
VGA BIAS AND  
INTERPOLATOR  
RCLMP  
CONTROL  
INTERFACE  
AD8331/AD8332/AD8334  
AD8332, AD8334: 145 mW/channel  
Wide gain range with programmable postamp  
−4.5 dB to +43.5 dB  
ENB  
GAIN  
Figure 1. Signal Path Block Diagram  
+7.5 dB to +55.5 dB  
60  
50  
40  
30  
20  
10  
0
Low output-referred noise: 48 nV/√Hz typical  
Active input impedance matching  
Optimized for 10-bit/12-bit ADCs  
Selectable output clamping level  
Single 5 V supply operation  
AD8332 and AD8334 available in lead frame chip scale package  
V
= 1V  
GAIN  
HIGH GAIN  
MODE  
V
= 0.8V  
= 0.6V  
= 0.4V  
GAIN  
GAIN  
GAIN  
GAIN  
V
V
V
= 0.2V  
= 0V  
APPLICATIONS  
V
GAIN  
Ultrasound and sonar time-gain controls  
High performance AGC systems  
I/Q signal processing  
–10  
100k  
High speed, dual ADC drivers  
1M  
10M  
FREQUENCY (Hz)  
100M  
1G  
GENERAL DESCRIPTION  
Figure 2. Frequency Response vs. Gain  
The AD8331/AD8332/AD8334 are single-, dual-, and quad-  
channel ultralow noise, linear-in-dB, variable gain amplifiers  
(VGAs). Optimized for ultrasound systems, they are usable as a  
low noise variable gain element at frequencies up to 120 MHz.  
Differential signal paths result in superb second- and third-  
order distortion performance and low crosstalk.  
The VGA’s low output-referred noise is advantageous in driving  
high speed differential ADCs. The gain of the postamplifier can  
be pin selected to 3.5 dB or 15.5 dB to optimize gain range and  
output noise for 12-bit or 10-bit converter applications. The  
output can be limited to a user-selected clamping level,  
preventing input overload to a subsequent ADC. An external  
resistor adjusts the clamping level.  
Included in each channel are an ultralow noise preamplifier  
(LNA), an X-AMP® VGA with 48 dB of gain range, and a  
selectable gain postamplifier with adjustable output limiting.  
The LNA gain is 19 dB with a single-ended input and  
differential outputs. Using a single resistor, the LNA input  
impedance can be adjusted to match a signal source without  
compromising noise performance.  
The operating temperature range is −40°C to +85°C. The  
AD8331 is available in a 20-lead QSOP package, the AD8332 is  
available in 28-lead TSSOP and 32-lead LFCSP packages, and  
the AD8334 is available in a 64-lead LFCSP package.  
The 48 dB gain range of the VGA makes these devices suitable  
for a variety of applications. Excellent bandwidth uniformity is  
maintained across the entire range. The gain control interface  
provides precise linear-in-dB scaling of 50 dB/V for control  
voltages between 40 mV and 1 V. Factory trim ensures excellent  
part-to-part and channel-to-channel gain matching.  
Rev. E  
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  
©2006 Analog Devices, Inc. All rights reserved.  
 

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