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VCA810IDR Datasheet

  • VCA810IDR

  • High Gain Adjust Range, Wideband, Voltage-Controlled Amplifi...

  • 25頁

  • BB

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VCA810
SBOS275C 鈭?JUNE 2003 鈭?REVISED OCTOBER 2004
High Gain Adjust Range, Wideband,
Voltage-Controlled Amplifier
FEATURES
D
D
D
D
D
D
D
D
D
HIGH GAIN ADJUST RANGE:
+
40dB
DIFFERENTIAL IN/SINGLE-ENDED OUT
LOW INPUT NOISE VOLTAGE: 2.4nV//Hz
CONSTANT BANDWIDTH vs GAIN: 35MHz
HIGH dB/V GAIN LINEARITY:
+
0.3dB
GAIN CONTROL BANDWIDTH: 25MHz
LOW OUTPUT DC ERROR: <
+
40mV
HIGH OUTPUT CURRENT:
+
60mA
LOW SUPPLY CURRENT: 24.8mA (max for
鈭?05C to +855C temperature range)
DESCRIPTION
The VCA810 is a DC-coupled, wideband, continuously
variable, voltage-controlled gain amplifier. It provides a
differential input to single-ended output conversion with a
high-impedance gain control input used to vary the gain over
a 鈥?0dB to +40dB range linear in dB/V.
Operating from
鹵5V
supplies, the gain control voltage for the
VCA810 will adjust the gain from 鈥?0dB at 0V input to +40dB
at 鈥?V input. Increasing the control voltage above ground will
attenuate the signal path to > 80dB. Signal bandwidth and
slew rate remain constant over the entire gain adjust range.
This 40dB/V gain control is accurate within
鹵1.5dB
(鹵0.9dB
for High Grade), allowing the gain control voltage in an AGC
application to be used as a Received Signal Strength
Indicator (RSSI) with
鹵1.5dB
accuracy.
Excellent common-mode rejection and common-mode input
range at the two high-impedance inputs allow the VCA810 to
provide a differential receiver operation with gain adjust. The
output signal is referenced to ground. Zero differential input
voltage gives a 0V output with a small DC offset error. Low
input noise voltage ensures good output SNR at the highest
gain settings.
In applications where pulse edge information is critical, and
the VCA810 is being used to equalize varying channel loss,
minimal change in group delay over gain setting will retain
excellent pulse edge information.
An improved output stage provides adequate output current
to drive the most demanding loads. While principally intended
to drive analog-to-digital converters (ADCs) or 2nd-stage
amplifiers, the
鹵60mA
output current will easily drive
doubly-terminated 50鈩?lines or a passive post filter stage
over the
鹵1.7V
output voltage range.
APPLICATIONS
D
D
D
D
D
D
D
OPTICAL RECEIVER TIME GAIN CONTROL
SONAR SYSTEMS
VOLTAGE-TUNABLE ACTIVE FILTERS
LOG AMPLIFIER
PULSE AMPLITUDE COMPENSATION
AGC RECEIVER WITH RSSI
IMPROVED REPLACEMENT FOR THE
VCA610
+5V
6
V+
V
鈭?/div>
1
8
Gain
Adjust
+
X1
5
V
OUT
VCA810
VCA810 RELATED PRODUCTS
SINGLES
VCA811
鈥?/div>
DUALS
鈥?/div>
VCA2612
VCA2613
VCA2614
VCA2616
VCA2618
GAIN ADJUST
RANGE (dB)
80
45
45
45
45
45
INPUT
NOISE
(nV//Hz)
2.4
1.25
1
3.6
3.3
5.5
SIGNAL
BANDWIDTH
(MHz)
80
80
80
40
40
30
2
3
V
C
0
鈫?鈭?/div>
2V
鈭?/div>
40dB
鈫?/div>
+40dB Gain
鈥?/div>
鈥?/div>
7
鈭?/div>
5V
鈥?/div>
鈥?/div>
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>
2003鈭?004, Texas Instruments Incorporated
www.ti.com

VCA810IDR 產(chǎn)品屬性

  • 2,500

  • 集成電路 (IC)

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

  • -

  • 可變增益

  • 1

  • -

  • 350 V/µs

  • -

  • 35MHz

  • 6µA

  • 100µV

  • 20mA

  • 60mA

  • ±4 V ~ 6 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOIC

  • 帶卷 (TR)

  • 296-19684-ND - BOARD DEMO FOR 8SOIC VCA'S

VCA810IDR相關(guān)型號PDF文件下載

  • 型號
    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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