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| 型號： | AD8335ACPZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/28頁 |
| 文件大小： | 0K |
| 描述： | IC AMP VGA QUAD 64LFCSP |
| 產品變化通告： | AD8335 Metal Mask Change 12/Jul/2010 |
| 標準包裝： | 2,500 |
| 系列： | X-AMP® |
| 類型： | 可變增益放大器 |
| 應用： | 信號處理 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-VFQFN 裸露焊盤，CSP |
| 供應商設備封裝： | 64-LFCSP-VQ（9x9） |
| 包裝： | 帶卷 (TR) |
| 配用： | AD8335-EVALZ-ND - BOARD EVALUATION FOR AD8335 |
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Quad Low Noise, Low Cost
Variable Gain Amplifier
Data Sheet
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2004–2012 Analog Devices, Inc. All rights reserved.
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 maximum = 625 mV p-p
Active input match
Input SNR (noise bandwidth = 20 MHz) = 92 dB
VGA
Differential output
VOUT maximum = 5 V p-p, RL = 500 Ω differential
Gain range (8 dB output gain step)
10 dB to +38 dB—low gain mode
2 dB to +46 dB—high gain mode
Accurate linear-in-dB gain control
PrA + VGA performance
3 dB bandwidth of 85 MHz
Excellent overload performance
Supply: 5 V
Power consumption
95 mW/channel (380 mW total)
65 mW/channel (PrA off; 260 mW total)
Power-down
APPLICATIONS
Medical imaging (ultrasound, gamma cameras)
Sonar
Test and measurement
Precise, stable wideband gain control
FUNCTIONAL BLOCK DIAGRAM
PIP1
PMD1
PMD2
PIP2
PON2
POP2
VIP2
VIN2
VIN3
VIP3
VCM3
POP3
PON3
PIP3
PMD3
PMD4
PIP4
PO
N
1
PO
P1
VI
P1
VI
N
1
VCM2
VC
M1
EN
12
SP1
2
HL
12
VOH1
VOL1
VGN1
SL12
VGN2
VOL2
VOH2
VOH3
VOL3
VGN3
SL34
VGN4
VOL4
VOH4
PO
N
4
PO
P4
VI
P4
VI
N
4
VCM4
EN
34
SP3
4
HL
34
18dB
VMD1
VMD2
VMD3
VMD4
INTERPOLATOR
20dB
TO
28dB
20dB
TO
28dB
20dB
TO
28dB
20dB
TO
28dB
ATTEN
–48dB TO
0dB
ATTEN
–48dB TO
0dB
ATTEN
–48dB TO
0dB
ATTEN
–48dB TO
0dB
GAIN INT
AD8335
04
976
-001
Figure 1.
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 of 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.
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.
Assuming a 20 MHz noise bandwidth (NBW), the Nyquist
frequency for a 40 MHz ADC, the input SNR is 92 dB. The
HLxx 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.
Channel 1 and Channel 2 are enabled through the EN12 pin, and
Channel 3 and Channel 4 are enabled through the EN34 pin.
For VGA only applications, the PrAs can be powered down,
significantly reducing power consumption.
The AD8335 is available in a 64-lead lead frame chip scale
package (9 mm × 9 mm) for the industrial temperature range
of 40°C to +85°C.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD8335ACPZ-REEL7 | 功能描述:IC AMP VGA QUAD 64LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:X-AMP® 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:60 系列:- 類型:可變增益放大器 應用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應商設備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
| AD8335EVAL | 制造商:Analog Devices 功能描述:EVAL BOARD ((NS)) |
| AD8335-EVAL | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Low Noise, Low Cost Variable Gain Amplifier |
| AD8335-EVALZ | 功能描述:BOARD EVALUATION FOR AD8335 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 運算放大器 系列:X-AMP® 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
| AD8336 | 制造商:AD 制造商全稱:Analog Devices 功能描述:General-Purpose, −55 to +125, Wide Bandwidth, DC-Coupled VGA |
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