THS4551

現行

低雜訊、精密、150MHz、全差分放大器

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產品規格表

document-pdfAcrobat THS4551 Low-Noise, Precision, 150-MHz, Fully Differential Amplifier datasheet (Rev. D) (英文) PDF | HTML

THS4551

現行

產品規格表

立即訂購

產品詳細資料

Number of channels

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

2.7

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

5.4

BW at Acl (MHz)

150

Acl, min spec gain (V/V)

Slew rate (typ) (V/µs)

220

Architecture

Bipolar, Fully Differential ADC Driver

Vn at flatband (typ) (nV√Hz)

3.3

Iq per channel (typ) (mA)

1.35

Rail-to-rail

In to V-, Out

Vos (offset voltage at 25°C) (max) (mV)

0.175

Operating temperature range (°C)

-40 to 125

Iout (typ) (mA)

2nd harmonic (dBc)

128

3rd harmonic (dBc)

139

Frequency of harmonic distortion measurement (MHz)

0.1

GBW (typ) (MHz)

135

Input bias current (max) (pA)

1500000

Features

Shutdown

CMRR (typ) (dB)

110

Rating

Catalog

Number of channels

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

2.7

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

5.4

BW at Acl (MHz)

150

Acl, min spec gain (V/V)

Slew rate (typ) (V/µs)

220

Architecture

Bipolar, Fully Differential ADC Driver

Vn at flatband (typ) (nV√Hz)

3.3

Iq per channel (typ) (mA)

1.35

Rail-to-rail

In to V-, Out

Vos (offset voltage at 25°C) (max) (mV)

0.175

Operating temperature range (°C)

-40 to 125

Iout (typ) (mA)

2nd harmonic (dBc)

128

3rd harmonic (dBc)

139

Frequency of harmonic distortion measurement (MHz)

0.1

GBW (typ) (MHz)

135

Input bias current (max) (pA)

1500000

Features

Shutdown

CMRR (typ) (dB)

110

Rating

Catalog

WQFN (RUN)

4 mm² (2 mm × 2 mm)

VQFN (RGT)

9 mm² (3 mm × 3 mm)

VSSOP (DGK)

14.7 mm² (3 mm × 4.9 mm)

Bandwidth: 150 MHz (G = 1 V/V)
Differential Output Slew Rate: 220 V/µs
Gain Bandwidth Product: 135 MHz
Negative Rail Input (NRI), Rail-to-Rail Output (RRO)
Wide Output Common-Mode Control Range
Single-Supply Operating Range: 2.7 V to 5.4 V
Trimmed-Supply Current: 1.37 mA at 5 V
25°C Input Offset: ±175 µV (max)
Input Offset Voltage Drift: ±1.8 µV/°C (max)
Differential Input Voltage Noise: 3.3 nV/√ Hz
HD2: –128 dBc at 2 V_PP, 100 kHz
HD3: –139 dBc at 2 V_PP, 100 kHz
< 50-ns Settling Time: 4-V Step to 0.01%
18-Bit Settling Time: 4-V Step, < 500 ns

Bandwidth: 150 MHz (G = 1 V/V)
Differential Output Slew Rate: 220 V/µs
Gain Bandwidth Product: 135 MHz
Negative Rail Input (NRI), Rail-to-Rail Output (RRO)
Wide Output Common-Mode Control Range
Single-Supply Operating Range: 2.7 V to 5.4 V
Trimmed-Supply Current: 1.37 mA at 5 V
25°C Input Offset: ±175 µV (max)
Input Offset Voltage Drift: ±1.8 µV/°C (max)
Differential Input Voltage Noise: 3.3 nV/√ Hz
HD2: –128 dBc at 2 V_PP, 100 kHz
HD3: –139 dBc at 2 V_PP, 100 kHz
< 50-ns Settling Time: 4-V Step to 0.01%
18-Bit Settling Time: 4-V Step, < 500 ns

The THS4551 fully differential amplifier offers an easy interface from single-ended sources to the differential output required by high-precision analog-to-digital converters (ADCs). Designed for exceptional dc accuracy, low noise, and robust capacitive load driving, this device is well suited for data acquisition systems where high precision is required along with the best signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR) through the amplifier and ADC combination.

The THS4551 features the negative rail input required when interfacing a dc-coupled, ground-centered, source signal to a single-supply differential input ADC. Very low dc error and drift terms support the emerging 16- to 20-bit successive-approximation register (SAR) input requirements. A wide-range output common-mode control supports the ADC running from 1.8-V to 5-V supplies with ADC common-mode input requirements from 0.7 V to greater than 3.0 V.

The THS4551 device is characterized for operation over the wide temperature range of –40°C to +125°C, and is available in 8-pin VSSOP, 16-pin VQFN, and 10-pin WQFN packages.

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重要文件	類型	標題	格式選項	日期
*	資料表	THS4551 Low-Noise, Precision, 150-MHz, Fully Differential Amplifier datasheet (Rev. D)	PDF \| HTML	2021/4/23
	技術文章	Go Differential to Differentiate Your Precision Design (Rev. A)	PDF \| HTML	2026/2/10
	Application brief	Why Use an FDA to Drive an ADC?	PDF \| HTML	2026/1/8
	Application brief	Active Filter Design for Differential ADCs (Rev. A)	PDF \| HTML	2025/10/8
	Product overview	High Speed Amplifiers for Motor Encoders and Position Sensing	PDF \| HTML	2025/4/11
	Product overview	High Speed Amplifiers for In-Vitro Diagnostics (IVD) Analog Front End	PDF \| HTML	2025/4/10
	Circuit design	High-input impedance, true differential, AFE attenuator circuit for SAR ADCs (Rev. B)	PDF \| HTML	2024/9/25
	Circuit design	True differential, 4 × 2 MUX, analog front end, simultaneous-sampling ADC circui (Rev. B)	PDF \| HTML	2024/9/20
	Circuit design	High-current battery monitor circuit: 0–10A, 0-10kHz, 18 bit (Rev. A)	PDF \| HTML	2024/9/12
	應用說明	Continuous Wave Doppler Signal Chain Designs for TI’s Ultrasound AFE (Rev. A)	PDF \| HTML	2024/5/22
	Product overview	Pairing ADC Drivers With Fully-Differential Input ADCs for Wide Bandwidth Data Acquisition		2024/4/1
	Product overview	PLC Analog Input Front-End Architectures	PDF \| HTML	2022/7/31
	技術文章	Balancing ADC size, power, resolution and bandwidth in precision data-acquisition	PDF \| HTML	2021/12/3
	Application brief	Optimizing LCR Meter Front-End Design for Accurate Impedance Measurements	PDF \| HTML	2021/1/20
	Application brief	Setting a Constant Common-Mode Voltage for Fully-Differential SAR ADC Inputs		2019/9/6
	Application brief	Maximizing System Total Harmonic Distortion Using High Speed Amplifiers		2018/6/20
	應用說明	Attenuator Amplifier Design to Maximize the Input Voltage of Differential ADCs		2018/6/14
	應用說明	Precision Sum Circuit Support Hi Output Current Multiple AFEs in Ultasound App		2017/11/20
	技術文章	Powering up the performance of sensitive test and measurement systems	PDF \| HTML	2017/10/17
	電子書	The Signal e-book: A compendium of blog posts on op amp design topics	PDF \| HTML	2017/3/28
	技術文章	What you need to know about input bias current – and why	PDF \| HTML	2016/12/8

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ADS8900BEVM-PDK — ADS8900B 全差動輸入、20 位元 SAR ADC EVM 性能展示套件 (PDK)

ADS8900B 評估模組 (EVM) 和性能展示套件 (PDK) 是評估 ADS8900B 連續近似暫存器 (SAR) 類比轉數位轉換器 (ADC) 效能的平台、這是一款全差動輸入、20 位元、1MSPS 裝置。ADS8900BEVM-PDK 包括 ADS8900B EVM 板和精密主機介面 (PHI) 控制器板，可啟用隨附的電腦軟體。

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DEM-FDA-RUN-EVM — 採用 WQFN (RUN) 封裝的全差分放大器評估模組

DEM-FDA-RUN-EVM 是適用於 RUN 封裝（WQFN 10 接腳）全差動放大器 (FDA) 的評估模組，支援多個高速 FDA。此電路板支援快速示範功能和能力，包括為方便使用的 SMA 連接器，並支援多種板載可配置選項：MFB 主動濾波器、負載網路至 FDA、輸出變壓器、用於關機的外部驅動及輸出共模電壓。

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THS4551DGKEVM — THS4551DGK 評估模組

THS4551DGKEVM 是一款採用 DGK (VSSOP-8) 封裝的評估模組，適用於單 THS4551 放大器。此評估模組可快速且輕鬆展示放大器的功能性和多元用途。EVM 隨時可透過板載連接器來連接電源、訊號源和測試儀器。EVM 已配置為可透過其輸入與輸出，輕鬆連接常見的 50-Ω 實驗室設備。

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THS4551RGTEVM — THS4551RGT 評估模組

THS4551RGTEVM 是一款採用 RGT (WQFN-10) 封裝的評估模組，適用於單 THS4551 放大器。此評估模組可快速且輕鬆展示放大器的功能性和多元用途。EVM 隨時可透過板載連接器來連接電源、訊號源和測試儀器。EVM 已配置為可透過其輸入與輸出，輕鬆連接常見的 50-Ω 實驗室設備。

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THS4551RUNEVM — THS4551RUN 評估模組

THS4551RUNEVM 是一款採用 RUN (WQFN-10) 封裝的評估模組，適用於單 THS4551 放大器。此評估模組可快速且輕鬆展示放大器的功能性和多元用途。EVM 隨時可透過板載連接器來連接電源、訊號源和測試儀器。EVM 已配置為可透過其輸入與輸出，輕鬆連接常見的 50-Ω 實驗室設備。

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