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運算放大器 (op amps)
高速運算放大器 (GBW ≥ 50 MHz)

THS4031

現行

100-MHz 單通道低雜訊電壓回饋放大器

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最新 OPA891 現行 具有超低總諧波失真 (THD) 的 180MHz 0.95nV√Hz 運算放大器 Lower noise (0.95 nV/Hz), lower Iq (7.5 mA), higher precision (1 mV), and improved THD+N (-137 dBc)

THS4031

現行
產品規格表 立即訂購

產品詳細資料

Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 10 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 30 GBW (typ) (MHz) 120 BW at Acl (MHz) 100 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 100 Vn at flatband (typ) (nV√Hz) 1.6 Vn at 1 kHz (typ) (nV√Hz) 1.6 Iq per channel (typ) (mA) 8.5 Vos (offset voltage at 25°C) (max) (mV) 2 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 95 Input bias current (max) (pA) 6000000 Offset drift (typ) (µV/°C) 2 Iout (typ) (mA) 90 2nd harmonic (dBc) 81 3rd harmonic (dBc) 81 Frequency of harmonic distortion measurement (MHz) 1
Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 10 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 30 GBW (typ) (MHz) 120 BW at Acl (MHz) 100 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 100 Vn at flatband (typ) (nV√Hz) 1.6 Vn at 1 kHz (typ) (nV√Hz) 1.6 Iq per channel (typ) (mA) 8.5 Vos (offset voltage at 25°C) (max) (mV) 2 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 95 Input bias current (max) (pA) 6000000 Offset drift (typ) (µV/°C) 2 Iout (typ) (mA) 90 2nd harmonic (dBc) 81 3rd harmonic (dBc) 81 Frequency of harmonic distortion measurement (MHz) 1
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9 SOIC (D) 8 29.4 mm² 4.9 x 6
  • Ultra-low 1.2nV/√ Hz voltage noise
  • High Speed:
    • 100MHz bandwidth [G = 2 (–1), –3dB]
    • 100V/µs slew rate
  • Very low distortion
    • THD = –81dBc (f = 1MHz, RL = 150Ω)
    • THD = –96dBc (f = 1MHz, RL = 1kΩ)
  • Low 0.3mV (typical) input offset voltage
  • 200mA output current drive (typical)
  • Typical operation from ±4.5V to ±16V
  • Offset nulling pins on the THS4031
  • Ultra-low 1.2nV/√ Hz voltage noise
  • High Speed:
    • 100MHz bandwidth [G = 2 (–1), –3dB]
    • 100V/µs slew rate
  • Very low distortion
    • THD = –81dBc (f = 1MHz, RL = 150Ω)
    • THD = –96dBc (f = 1MHz, RL = 1kΩ)
  • Low 0.3mV (typical) input offset voltage
  • 200mA output current drive (typical)
  • Typical operation from ±4.5V to ±16V
  • Offset nulling pins on the THS4031

The THS4031 and THS4032 (THS403x) are ultra-low voltage noise, high-speed voltage feedback amplifiers that are an excellent choice for applications requiring low voltage noise, including communications and imaging. The single-amplifier THS4031 and the dual-amplifier THS4032 offer very good AC performance with 100MHz bandwidth (G = 2), 100V/µs slew rate, and 70ns settling time (0.1%). The THS403x are unity-gain stable with 120MHz bandwidth. These amplifiers have a high drive capability of 200mA and draw only 7.5mA supply current per channel. With –96dBc of total harmonic distortion (THD) at f = 1MHz and a very low noise of 1.2nV/√ Hz, the THS403x are designed for applications requiring low distortion and low noise such as buffering analog-to-digital converters.

The THS4031 and THS4032 (THS403x) are ultra-low voltage noise, high-speed voltage feedback amplifiers that are an excellent choice for applications requiring low voltage noise, including communications and imaging. The single-amplifier THS4031 and the dual-amplifier THS4032 offer very good AC performance with 100MHz bandwidth (G = 2), 100V/µs slew rate, and 70ns settling time (0.1%). The THS403x are unity-gain stable with 120MHz bandwidth. These amplifiers have a high drive capability of 200mA and draw only 7.5mA supply current per channel. With –96dBc of total harmonic distortion (THD) at f = 1MHz and a very low noise of 1.2nV/√ Hz, the THS403x are designed for applications requiring low distortion and low noise such as buffering analog-to-digital converters.
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類型 標題 日期
* Data sheet THS403x 100MHz Low-Noise High-Speed Amplifiers datasheet (Rev. J) PDF | HTML 2024年 2月 22日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
Analog Design Journal Accurately measuring ADC driving-circuit settling time (Rev. A) 2015年 5月 18日
Application note Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) 2015年 5月 8日
Application note Low Power Input and Reference Driver Circuit for ADS8318 and ADS8319 2009年 6月 24日
Application note Noise Analysis for High Speed Op Amps (Rev. A) 2005年 1月 17日
More literature THS4031M/5962-9959501QxA 120-MHz Low-Noise, High-Speed Amplifier 2000年 5月 18日
User guide THS4031 High-Speed Operational Amplifier EVM User's Guide 1999年 6月 24日

設計與開發

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開發板

THS4031EVM — 適用於 100-MHz 單通道低雜訊電壓回饋放大器的 THS4031 評估模組

THS4031 高速運算放大器評估模組 (EVM) 為完整的高速放大器電路。其由 THS4031 高速低功耗運算放大器 IC 及少量被動零件組成，並安裝在體積約為 1.7 英吋乘 1.4 英吋的小型電路板上。EVM 使用標準 SMA 微型 RF 連接器進行輸入和輸出，經過完整組裝、完全測試且隨時可用，只需將其連接至電源、信號源和負載 (如果需要) 即可使用。

使用指南: PDF
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模擬型號

THS4031 PSpice Model (Rev. A)

SLOJ005A.ZIP (6 KB) - PSpice Model
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計算工具

ANALOG-ENGINEER-CALC — 類比工程師計算機

The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
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計算工具

VOLT-DIVIDER-CALC — Voltage divider calculation tool

The voltage divider calculation tool (VOLT-DIVIDER-CALC) quickly determines a set of resistors for a voltage divider. This KnowledgeBase JavaScript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. VOLT-DIVIDER-CALC can also be used to (...)
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
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