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VCA8617PAGT Datasheet

  • VCA8617PAGT

  • 8-Channel VARIABLE GAIN AMPLIFIER

  • 26頁

  • BB

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VCA8617
SBOS308B 鈭?AUGUST 2004 鈭?REVISED NOVEMBER 2004
8-Channel
VARIABLE GAIN AMPLIFIER
FEATURES
D
3V OPERATION
D
LOW INPUT NOISE: 1.0nV//Hz at f
IN
= 5MHz
D
EXTREMELY LOW POWER OPERATION:
D
100mW/CHANNEL
INTEGRATED LOW-PASS, 2-POLE FILTER
15MHz BANDWIDTH
D
D
D
D
D
INTEGRATED INPUT CLAMP DIODES
DIFFERENTIAL OUTPUT
INTEGRATED INPUT LNA
READABLE CONTROL REGISTERS
INTEGRATED CONTINUOUS WAVE (CW)
PROCESSOR
DESCRIPTION
The VCA8617 is an 8-channel variable gain amplifier
ideally suited to portable ultrasound applications.
Excellent dynamic performance enables use in
low-power, high-performance portable applications.
Each channel consists of a 20dB gain Low-Noise
pre-Amplifier (LNA) and a Variable Gain Amplifier
(VGA). The differential outputs of the LNA can be
switched through the 8x10 cross-point switch, which is
programmable through the serial interface input port.
The output of the LNA is fed directly into the VGA stage.
The VGA consists of two parts, a Voltage-Controlled
Attenuator (VCA) and a Programmable Gain Amplifier
(PGA). The gain and gain range of the PGA can be
digitally configured separately. The gain of the PGA can
vary between four discrete settings of 25dB, 30dB,
35dB, and 40dB. The VCA has four programmable
maximum attenuation settings: 29dB, 33dB, 36.5dB,
and 40dB. Also, the VCA can be continuously varied by
a control voltage from 0dB to a maximum of 29dB,
33dB, 36.5dB, and 40dB.
The output of the PGA feeds directly into an integrated
two-pole, low-pass filter.
D(0鈭?)
DATA
CLK
CS
Serial
Interface
鈥⑩€⑩€?/div>
Analog
Control
+
OutP
(1)
OutN
(1)
鈥⑩€⑩€?/div>
10x8
FIFO
CW Processor
CW(0鈭?)
LNAIN1
LNA
1
鈭?/div>
鈥⑩€⑩€?/div>
Attenuator
PGA
2鈭?/div>
Pole
Filter
鈥⑩€⑩€?/div>
V
LNA
+
LNAIN8
LNA
8
鈭?/div>
Attenuator
PGA
2鈭?/div>
Pole
Filter
OutP
(8)
OutN
(8)
Analog
Control
V
LNA
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright
錚?/div>
2004, Texas Instruments Incorporated
www.ti.com
鈥⑩€⑩€?/div>
鈥⑩€⑩€?/div>

VCA8617PAGT 產(chǎn)品屬性

  • 1

  • 集成電路 (IC)

  • Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

  • -

  • 可變?cè)鲆?/p>

  • 8

  • 差分

  • 300 V/µs

  • 100MHz

  • -

  • 1nA

  • -

  • -

  • -

  • 2.85 V ~ 3.15 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 64-TQFP

  • 64-TQFP（10x10）

  • 剪切帶 (CT)

  • 296-18579296-18579-1296-18579-ND

VCA8617PAGT相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    High Gain Adjust Range, Wideband, Voltage-Controlled Amplifi...
    BB
  • 英文版
    High Gain Adjust Range, Wideband, Voltage-Controlled Amplifi...
    BURR-BROWN ...
  • 英文版
    Wideband, > 40dB Gain Adjust Range, Linear in V/V VARIABLE G...
    TI [Texas ...
  • 英文版
    Wideband, > 40dB Gain Adjust Range, Linear in V/V VARIABLE G...
    TI [Texas ...
  • 英文版
  • 英文版
    Wideband, > 40dB Gain Adjust Range, Linear in V/V VARIABLE G...
    TI [Texas ...
  • 英文版
    8-Channel, Ultra-Low Power Variable Gain Amplifier with Low-...
    TI [Texas ...
  • 英文版
    8-Channel VARIABLE GAIN AMPLIFIER
    TI
  • 英文版
    8-Channel VARIABLE GAIN AMPLIFIER
    TI [Texas ...
  • 英文版
    8-Channel VARIABLE GAIN AMPLIFIER
    BB
  • 英文版
    8-Channel VARIABLE GAIN AMPLIFIER
    BURR-BROWN ...
  • 英文版
    High Gain Adjust Range, Wideband, Voltage-Controlled Amplifi...
    BB
  • 英文版
    Variable Gain Amplifier 1 Circuit 8-SOIC
  • 英文版
    High Gain Adjust Range, Wideband, Voltage-Controlled Amplifi...
    BURR-BROWN ...
  • 英文版
    Variable Gain Amplifier 1 Circuit 14-SOIC
  • 英文版
    150MHz BW with linear in dB gain control variable gain ampli...
    Texas Instruments
  • 英文版
    Variable Gain Amplifier 1 Circuit 14-SOIC
  • 英文版
    Variable Gain Amplifier 1 Circuit 14-SOIC
  • 英文版
    Wideband, > 40dB Gain Adjust Range, Linear in V/V VARIABLE G...
    TI [Texas ...
  • 英文版
    Variable Gain Amplifier 1 Circuit 14-SOIC

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