The THS4509 device is a wideband, fully-differential op amp designed for 5-V data acquisition systems. It has a low noise at 1.9 nV/√Hz, and low harmonic distortion of –75 dBc HD₂ and –80 dBc HD₃ at 100 MHz with 2 V_PP, G = 10 dB, and 1-kΩ load. Slew rate is high at 6600 V/µs, and with settling time of 2 ns to 1% (2-V step), it is ideal for pulsed applications. It is designed for a minimum gain of 6 dB, but is optimized for gains of 10 dB.

To allow for DC coupling to analog-to-digital converters (ADCs), its unique output common-mode control circuit maintains the output common-mode voltage within 3-mV offset (typical) from the set voltage, when set within 0.5-V of midsupply, with less than 4-mV differential offset voltage. The common-mode set point is set to midsupply by internal circuitry, which may be overdriven from an external source.

The input and output are optimized for best performance with the common-mode voltages set to midsupply. Along with high performance at low power-supply voltage, this design makes it ideal for high-performance, single-supply 5-V data acquisition systems. The combined performance of the THS4509 in a gain of 10 dB driving the ADS5500 ADC, sampling at 125 MSPS, is 81-dBc SFDR and 69.1-dBc SNR with a –1 dBFS signal at 70 MHz.

The THS4509 is offered in a quad, leadless VQFN-16 package (RGT), and is characterized for operation over the full industrial temperature range from –40°C to +85°C.

• Fully-Differential Architecture
• Centered Input Common-Mode Range
• Output Common-Mode Control
• Minimum Gain of 2 V/V (6 dB)
• Bandwidth: 1900 MHz
• Slew Rate: 6600 V/μs
• 1% Settling Time: 2 ns
• HD2: –75 dBc at 100 MHz
• HD3: –80 dBc at 100 MHz
• OIP3: 37 dBm at 70 MHz
• Input Voltage Noise: 1.9 nV/√Hz (f > 10 MHz)
• Power-Supply Voltage: 3 V to 5 V
• Power-Supply Current: 37.7 mA
• Power-Down Current: 0.65 mA
• APPLICATIONS
  • 5-V Data Acquisition Systems High Linearity ADC Amplifiers
  • Wireless Communication
  • Medical Imaging
  • Test and Measurement

All other trademarks are the property of their respective owners

• Number of channels (#)
• 1
• Total supply voltage (Min) (+5V=5, +/-5V=10)
• 3
• Total supply voltage (Max) (+5V=5, +/-5V=10)
• 5.25
• BW @ Acl (MHz)
• 2000
• Acl, min spec gain (V/V)
• 2
• Slew rate (Typ) (V/us)
• 6600
• Architecture
• Fully Differential ADC Driver, Bipolar
• Vn at flatband (Typ) (nV/rtHz)
• 1.9
• Iq per channel (Typ) (mA)
• 37.7
• Rail-to-rail
• No
• Vos (offset voltage @ 25 C) (Max) (mV)
• 4
• Operating temperature range (C)
• -40 to 85
• Output current (Typ) (mA)
• 96
• 2nd harmonic (dBc)
• 104
• 3rd harmonic (dBc)
• 108
• @ MHz
• 10
• GBW (Typ) (MHz)
• 3000
• Input bias current (Max) (pA)
• 15500000
• Features
• Shutdown, Decompensated
• CMRR (Typ) (dB)
• 90
• Rating
• Catalog

THS4509的完整型号有：THS4509RGTR、THS4509RGTT，以下是这些产品的关键参数及官网采购报价：

THS4509RGTR，工作温度：-40 to 85，封装：VQFN (RGT)-16，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网THS4509RGTR的批量USD价格：3.388（1000+）

THS4509RGTT，工作温度：-40 to 85，封装：VQFN (RGT)-16，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网THS4509RGTT的批量USD价格：4.066（1000+）

ADS6142EVM — ADS6142 评估模块

The ADS6142EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS6142 device, a low power 14-bit 65 MSPS analog to digital converter. The ADC features a configurable parallel DDR LVDS or CMOS outputs. The EVM provides a flexible environment to test (...)

ADS6422EVM — ADS6422 评估模块

The ADS6422EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS6422 device, a quad channel 12-bit 65MSPS analog to digital converter. The ADC features a configurable serialized LVDS outputs which can be directly deserialized using TI‘s (...)

ADS6425EVM — ADS6425 评估模块

The ADS6425EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS6425 device, a quad channel 12-bit 125 MSPS analog to digital converter. The ADC features a configurable serialized LVDS outputs which can be directly deserialized using TI‘s (...)

ADS6442EVM — ADS6442 评估模块

The ADS6442EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS6442 device, a quad channel 14-bit 65MSPS analog to digital converter. The ADC features a configurable serialized LVDS outputs which can be directly deserialized using TI‘s (...)

ADS6445EVM — ADS6445 评估模块

The ADS6445 EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS6445 device, a quad channel 14-bit 125MSPS analog to digital converter. The ADC features a configurable serialized LVDS outputs which can be directly deserialized using (...)

THS4508EVM — THS4508 evaluation module

THS4508EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4508EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 10 dB and 50 ohm input and (...)

THS4509EVM — THS4509 evaluation module

THS4509RGT Eval 1 EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4509RGT Eval 1 EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 10dB (...)

THS4511EVM — THS4511 evaluation module

THS4511EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4511EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0 dB and 50 ohm input and (...)

THS4513EVM — THS4513 evaluation module

THS4513EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4513EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0dB and 50 ohm input and (...)

THS4520EVM — THS4520 evaluation module

THS4520EVM is an evaluation Module for the RGT (16pin leadless QFN) package.

The THS4520EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0dB and 50Ω (...)

THS4509 PSpice Model (Rev. D)

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。

借助?PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。

在?PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)

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。

如需获取可用 TINA-TI 模型的完整列表，请参阅：SpiceRack - 完整列表

需要 HSpice (...)

TI FDA Calculator

此参考设计展示了高速放大器 THS4509 执行单端至差动转换以驱动高速模数转换器 (ADC)，同时保持卓越的噪声和失真性能的能力。为交流和直流耦合应用显示了连接到 ADS4449 四通道、250 MSPS、14 位 ADC 时的性能与输入频率之间的关系。讨论了用于共模电压、电源和接口的各种选项，这些选项经过测量，满足各种应用的要求。显示了抗混叠滤波器示例以及它们所提供的性能改进。

TIDA-00092 — 优化 LMH6554 以驱动高速 ADC

此参考设计展示了高速放大器 LMH6554 执行单端至差动转换以驱动高速模拟至数字转换器 (ADC)，同时保持卓越的噪声和失真性能的能力。为交流和直流耦合应用显示了连接到 ADS4449 四通道、250 MSPS、14 位 ADC 时的性能与输入频率之间的关系。讨论了用于共模电压、电源和接口的各种选项，这些选项经过测量，满足各种应用的要求。显示了抗混叠滤波器示例以及它们所提供的性能改进。