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可编程和可变增益放大器（PGA 和 VGA）

THS770012

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具有从 10dB 到 13dB 的可选增益的高速全差分 ADC 驱动器放大器

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数据表

THS770012

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数据表 立即订购

产品详情

PGA/VGA PGA Number of channels 1 Vs (min) (V) 4.75 Vs (max) (V) 5 Input type Differential Output type Differential Interface type Resistance BW at Acl (MHz) 900 Acl, min spec gain (V/V) 3 Voltage gain (min) (V/V) 3 Voltage gain (max) (V/V) 4.8 Gain (max) (dB) 13.7 Architecture Fully Differential ADC Driver Features On chip gain resistors, Shutdown Input voltage noise (typ) (µV√Hz) 0.0015 Slew rate (typ) (V/µs) 3400 Iq per channel (typ) (mA) 100 Rating Catalog Operating temperature range (°C) -40 to 85
PGA/VGA PGA Number of channels 1 Vs (min) (V) 4.75 Vs (max) (V) 5 Input type Differential Output type Differential Interface type Resistance BW at Acl (MHz) 900 Acl, min spec gain (V/V) 3 Voltage gain (min) (V/V) 3 Voltage gain (max) (V/V) 4.8 Gain (max) (dB) 13.7 Architecture Fully Differential ADC Driver Features On chip gain resistors, Shutdown Input voltage noise (typ) (µV√Hz) 0.0015 Slew rate (typ) (V/µs) 3400 Iq per channel (typ) (mA) 100 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGE) 24 16 mm² (4 mm × 4 mm)
  • 900MHz Bandwidth at Gain of +10dB
  • 3300V/µs Slew Rate, VOUT = 2V step
  • Adjustable Gain: +10dB to +13.7dB
  • IMD3: –100dBc, VOUT = 2VPP, RL = 400Ω,
    f = 100MHz
  • OIP3: 47dBm, f = 100MHz
  • Noise Figure: 10.7 dB, f = 100MHz
  • 900MHz Bandwidth at Gain of +10dB
  • 3300V/µs Slew Rate, VOUT = 2V step
  • Adjustable Gain: +10dB to +13.7dB
  • IMD3: –100dBc, VOUT = 2VPP, RL = 400Ω,
    f = 100MHz
  • OIP3: 47dBm, f = 100MHz
  • Noise Figure: 10.7 dB, f = 100MHz

The THS770012 is a wideband, fully-differential amplifier, with adjustable gain range from +10dB to +13.7dB (with external components). It is designed and optimized specifically for driving 16-bit analog-to-digital converters (ADCs) at input frequencies up to 130MHz, and 14-bit ADCs at input frequencies up to 200MHz. This device provides high bandwidth, high-voltage output with low distortion and low noise, critical in high-speed data acquisition systems that require very high dynamic range, such as wireless base stations and test and measurement applications. This device also makes an excellent differential amplifier for general-purpose, high-speed differential signal chain and short line driver applications.

The THS770012 operates on a nominal +5V single supply, offers very fast, 7.5ns maximum recovery time from overdrive conditions, and has a power-down mode for power saving. The THS770012 is offered in a Pb-free (RoHS compliant) and green, QFN-24 thermally-enhanced package. It is characterized for operation over the industrial temperature range of –40°C to +85°C.

The THS770012 is a wideband, fully-differential amplifier, with adjustable gain range from +10dB to +13.7dB (with external components). It is designed and optimized specifically for driving 16-bit analog-to-digital converters (ADCs) at input frequencies up to 130MHz, and 14-bit ADCs at input frequencies up to 200MHz. This device provides high bandwidth, high-voltage output with low distortion and low noise, critical in high-speed data acquisition systems that require very high dynamic range, such as wireless base stations and test and measurement applications. This device also makes an excellent differential amplifier for general-purpose, high-speed differential signal chain and short line driver applications.

The THS770012 operates on a nominal +5V single supply, offers very fast, 7.5ns maximum recovery time from overdrive conditions, and has a power-down mode for power saving. The THS770012 is offered in a Pb-free (RoHS compliant) and green, QFN-24 thermally-enhanced package. It is characterized for operation over the industrial temperature range of –40°C to +85°C.
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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 Broadband, Fully Differential 14-/16-Bit ADC Driver Amplifier.. 数据表 (Rev. C) 2012-1-23
电子书 The Signal e-book: 有关运算放大器设计主题的博客文章汇编 PDF | HTML 英语版 PDF | HTML 2018-1-31
用户指南 TSW3725 Evaluation Module 2011-10-25

设计与开发

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评估板

THS770012EVM — THS770012 评估模块

THS770012 评估模块 (EVM) 用于测试 THS770012 高速、全差动、放大器器件的性能。THS770012EVM 原理图如 THS770012 数据表中所示。THS770012EVM 配置为连接 50Ω 标准的实验室设备，以便快速轻松地评估器件性能。可配置 EVM 来测试以下项：频率响应、s 参数（s11、s22、s12）、具有电容负载的频率响应、失真、噪声数值、断电、输出阻抗、输出平衡错误、共模抑制、VOCM 频率响应以及 VOCM 转换率和脉冲响应等。在某些情况下需要进行少量的 PCB 修改，包括把电容器改为电阻器，把电阻器改为电容器以及将组件短路/开路等。
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仿真模型

THS770012 ADS Model

SLOJ180.ZIP (46 KB) - SPICE 模型
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仿真模型

THS770012 PSpice Model

SLOM197.ZIP (19 KB) - PSpice 模型
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仿真模型

THS770012 TINA-TI Reference Design

SLOM196.TSC (99 KB) - TINA-TI 参考设计
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仿真模型

THS770012 TINA-TI Spice Model

SLOM195.ZIP (18 KB) - TINA-TI Spice 模型
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封装 引脚 CAD 符号、封装和 3D 模型
VQFN (RGE) 24 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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