产品详情

Features Analog Gain Set, Differential to Single-ended conversion PGA/VGA VGA Number of channels 1 Vs (max) (V) 10 Vs (min) (V) 10 BW at Acl (MHz) 35 Acl, min spec gain (V/V) 0.01 Slew rate (typ) (V/µs) 350 Gain (max) (dB) 40 Rating Catalog Operating temperature range (°C) -40 to 85
Features Analog Gain Set, Differential to Single-ended conversion PGA/VGA VGA Number of channels 1 Vs (max) (V) 10 Vs (min) (V) 10 BW at Acl (MHz) 35 Acl, min spec gain (V/V) 0.01 Slew rate (typ) (V/µs) 350 Gain (max) (dB) 40 Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² 4.9 x 6
  • High Gain Adjust Range: ±40 dB
  • Differential In, Single-Ended Out
  • Low Input Noise Voltage: 2.4 nV/√Hz
  • Constant Bandwidth vs Gain: 35 MHz
  • High dB/V Gain Linearity: ±0.3 dB
  • Gain Control Bandwidth: 25 MHz
  • Low Output DC Error: < ±40 mV
  • High Output Current: &plsumn;60 mA
  • Low Supply Current: 24.8 mA
    (Maximum for –40°C to 85°C Temperature Range)
  • APPLICATIONS
    • Optical Receiver Time Gain Control
    • Sonar Systems
    • Voltage-Tunable Active Filters
    • Log Amplifiers
    • Pulse Amplitude Compensation
    • AGC receivers With RSSI
    • Improved Replacement for VCA610

All other trademarks are the property of their respective owners

  • High Gain Adjust Range: ±40 dB
  • Differential In, Single-Ended Out
  • Low Input Noise Voltage: 2.4 nV/√Hz
  • Constant Bandwidth vs Gain: 35 MHz
  • High dB/V Gain Linearity: ±0.3 dB
  • Gain Control Bandwidth: 25 MHz
  • Low Output DC Error: < ±40 mV
  • High Output Current: &plsumn;60 mA
  • Low Supply Current: 24.8 mA
    (Maximum for –40°C to 85°C Temperature Range)
  • APPLICATIONS
    • Optical Receiver Time Gain Control
    • Sonar Systems
    • Voltage-Tunable Active Filters
    • Log Amplifiers
    • Pulse Amplitude Compensation
    • AGC receivers With RSSI
    • Improved Replacement for VCA610

All other trademarks are the property of their respective owners

The VCA810 is a DC-coupled, wideband, continuously variable, voltage-controlled gain amplifier. The device provides a differential input to single-ended output conversion with a high-impedance gain control input used to vary the gain over a –40-dB to 40-dB range linear in dB/V.

Operating from ±5-V supplies, the device gain control voltage adjusts the gain from –40 dB at a 0-V input to 40 dB at a –2-V input. Increasing the control voltage above ground attenuates the signal path to greater than 80 dB. Signal bandwidth and slew rate remain constant over the entire gain adjust range. This 40-dB/V gain control is accurate within ±1.5 dB (±0.9 dB for high grade), allowing the gain control voltage in an AGC application to be used as a received signal strength indicator (RSSI) with ±1.5-dB accuracy.

Excellent common-mode rejection and common-mode input range at the two high-impedance inputs allow the device to provide a differential receiver operation with gain adjust. The output signal is referenced to ground. Zero differential input voltage gives a 0-V 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 device is being used to equalize varying channel loss, minimal change in group delay over gain setting retains excellent pulse edge information.

An improved output stage provides adequate output current to drive the most demanding loads. Although principally intended to drive analog-to-digital converters (ADCs) or second-stage amplifiers, the ±60-mA output current easily drives doubly-terminated 50-Ω lines or a passive post-filter stage over the ±1.7-V output voltage range.

The VCA810 is a DC-coupled, wideband, continuously variable, voltage-controlled gain amplifier. The device provides a differential input to single-ended output conversion with a high-impedance gain control input used to vary the gain over a –40-dB to 40-dB range linear in dB/V.

Operating from ±5-V supplies, the device gain control voltage adjusts the gain from –40 dB at a 0-V input to 40 dB at a –2-V input. Increasing the control voltage above ground attenuates the signal path to greater than 80 dB. Signal bandwidth and slew rate remain constant over the entire gain adjust range. This 40-dB/V gain control is accurate within ±1.5 dB (±0.9 dB for high grade), allowing the gain control voltage in an AGC application to be used as a received signal strength indicator (RSSI) with ±1.5-dB accuracy.

Excellent common-mode rejection and common-mode input range at the two high-impedance inputs allow the device to provide a differential receiver operation with gain adjust. The output signal is referenced to ground. Zero differential input voltage gives a 0-V 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 device is being used to equalize varying channel loss, minimal change in group delay over gain setting retains excellent pulse edge information.

An improved output stage provides adequate output current to drive the most demanding loads. Although principally intended to drive analog-to-digital converters (ADCs) or second-stage amplifiers, the ±60-mA output current easily drives doubly-terminated 50-Ω lines or a passive post-filter stage over the ±1.7-V output voltage range.

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类型 标题 下载最新的英语版本 日期
* 数据表 VCA810 High Gain Adjust Range, Wideband and Variable Gain Amplifier 数据表 (Rev. G) PDF | HTML 2016年 1月 4日
用户指南 DEM-VCA-SO-1A User's Guide (Rev. B) 2010年 4月 22日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日
应用手册 Measuring Board Parasitics in High-Speed Analog Design 2003年 7月 7日

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DEM-VCA-SO-1A — DEM-VCA-SO-1A 演示固定装置

The DEM-VCA-SO-1A demonstration fixture helps designers evaluate the operation and performance of TI's single, wideband, voltage-controlled amplifiers. This unpopulated PC board is compatible with products offered in the SO-8 (D) package.

For more information on these types of high speed devices, as (...)

用户指南: PDF
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仿真模型

VCA810 PSpice Model (Rev. B)

SBOC069B.ZIP (36 KB) - PSpice Model
仿真模型

VCA810 TINA-TI Reference Design

SBOM869.TSC (3302 KB) - TINA-TI Reference Design
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VCA810 TINA-TI Spice Model

SBOM870.ZIP (4 KB) - TINA-TI Spice Model
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PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®

PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

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TINA-TI — 基于 SPICE 的模拟仿真程序

TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能,允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。

TINA-TI 安装需要大约 500MB。直接安装,如果想卸载也很容易。我们相信您肯定会爱不释手。

TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能,但不支持完整版 TINA 所提供的某些其他功能。

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用户指南: PDF
英语版 (Rev.A): PDF
封装 引脚 下载
SOIC (D) 8 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

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