參數(shù)資料
型號(hào)： VCA810AID
英文描述： High Gain Adjust Range, Wideband, Voltage-Controlled Amplifier
中文描述： 高增益調(diào)整范圍，寬帶，電壓控制放大器
文件頁(yè)數(shù)： 1/25頁(yè)
文件大小： 417K
代理商： VCA810AID
FEATURES
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
40 C to +85 C temperature range)
APPLICATIONS
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
5V
V
OUT
V
C
0
→
2V
40dB
→
+40dB Gain
VCA810
X1
2
3
V+
V
1
6
7
5
8
Gain
Adjust
+
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 –40dB to +40dB range linear in dB/V.
Operating from
±
5V supplies, the gain control voltage for the
VCA810 will adjust the gain from –40dB at 0V input to +40dB
at –2V 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
±
1.5dB (
±
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
±
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
±
60mA output current will easily drive
doubly-terminated 50
lines or a passive post filter stage
over the
±
1.7V output voltage range.
VCA810 RELATED PRODUCTS
SINGLES
DUALS
GAIN ADJUST
RANGE (dB)
INPUT
NOISE
(nV/ Hz)
SIGNAL
BANDWIDTH
(MHz)
VCA811
—
80
2.4
80
—
VCA2612
45
1.25
80
—
VCA2613
45
1
80
—
VCA2614
45
3.6
40
—
VCA2616
45
3.3
40
—
VCA2618
45
5.5
30
All trademarks are the property of their respective owners.
VCA810
SBOS275C JUNE 2003 REVISED OCTOBER 2004
High Gain Adjust Range, Wideband,
Voltage-Controlled Amplifier
www.ti.com
Copyright
20032004, Texas Instruments Incorporated
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.
!
!
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
VCA810AIDG4 功能描述:特殊用途放大器 High-Gain Adj Range Wideband Vltg-Cntrl RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
VCA810AIDR 功能描述:特殊用途放大器 High-Gain Adj Range Wideband Vltg-Cntrl RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
VCA810AIDRG4 功能描述:特殊用途放大器 High-Gain Adj Range Wideband Vltg-Cntrl RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
VCA810ID 功能描述:特殊用途放大器 High-Gain Adj Range Wideband Vltg-Cntrl RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
VCA810IDG4 功能描述:特殊用途放大器 High-Gain Adj Range Wideband Vltg-Cntrl RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
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