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

OPA2863A

現行

雙路、高精密度、低功率、105MHz、12V RRIO 電壓回饋放大器

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產品規格表

OPA2863A

現行
產品規格表 立即訂購

產品詳細資料

Architecture Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.6 GBW (typ) (MHz) 50 BW at Acl (MHz) 105 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 100 Vn at flatband (typ) (nV√Hz) 5.9 Vn at 1 kHz (typ) (nV√Hz) 5.9 Iq per channel (typ) (mA) 0.75 Vos (offset voltage at 25°C) (max) (mV) 0.095 Rail-to-rail In, Out Features Output short-circuit protection, Overload power limit, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 120 Input bias current (max) (pA) 730000 Offset drift (typ) (µV/°C) 0.3 Iout (typ) (mA) 30 2nd harmonic (dBc) 129 3rd harmonic (dBc) -138 Frequency of harmonic distortion measurement (MHz) 0.02
Architecture Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.6 GBW (typ) (MHz) 50 BW at Acl (MHz) 105 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 100 Vn at flatband (typ) (nV√Hz) 5.9 Vn at 1 kHz (typ) (nV√Hz) 5.9 Iq per channel (typ) (mA) 0.75 Vos (offset voltage at 25°C) (max) (mV) 0.095 Rail-to-rail In, Out Features Output short-circuit protection, Overload power limit, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 120 Input bias current (max) (pA) 730000 Offset drift (typ) (µV/°C) 0.3 Iout (typ) (mA) 30 2nd harmonic (dBc) 129 3rd harmonic (dBc) -138 Frequency of harmonic distortion measurement (MHz) 0.02
SOIC (D) 8 29.4 mm² 4.9 x 6 USON (DSN) 10 9 mm² 3 x 3 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Gain-bandwidth product: 50MHz
  • High precision:
    • Input offset voltage: 95µV (maximum)
    • Offset drift: 1.2µV/°C (maximum)
  • Low power:
    • Quiescent current: 800µA/ch (typical)
    • Supply voltage: 2.7V to 12.6V
  • Input voltage noise: 6.3nV/√Hz
  • Slew rate: 100V/µs
  • Rail-to-rail input and output
  • HD2 and HD3:
    • –129dBc and –138dBc at 20kHz (2VPP)
  • Operating temperature range: –40°C to +125°C
  • Additional features:
    • Overload power limit
    • Output short-circuit protection
  • Gain-bandwidth product: 50MHz
  • High precision:
    • Input offset voltage: 95µV (maximum)
    • Offset drift: 1.2µV/°C (maximum)
  • Low power:
    • Quiescent current: 800µA/ch (typical)
    • Supply voltage: 2.7V to 12.6V
  • Input voltage noise: 6.3nV/√Hz
  • Slew rate: 100V/µs
  • Rail-to-rail input and output
  • HD2 and HD3:
    • –129dBc and –138dBc at 20kHz (2VPP)
  • Operating temperature range: –40°C to +125°C
  • Additional features:
    • Overload power limit
    • Output short-circuit protection

The OPA863A and OPA2863A devices (OPAx863A) are low-power, unity-gain stable, rail-to-rail input and output, voltage-feedback operational amplifiers. These devices are trimmed in package to offer high-precision performance with a maximum input offset voltage of 95µV and offset drift of 1.2µV/°C for high accuracy measurements over temperature.

Consuming only 800µA per channel, the OPAx863A offer a gain-bandwidth product of 50MHz, slew rate of 100V/µs, and a voltage noise density of 6.3nV/√Hz. The rail-to-rail input stage with 2.7V supply operation is useful in portable, battery-powered applications. The rail-to-rail input stage is well matched for gain-bandwidth product and noise across the full input common-mode voltage range, enabling excellent performance with wide-input dynamic range.

The OPAx863A include overload power limiting to limit the increase in IQ with saturated outputs, thereby preventing excessive power dissipation in power-conscious, battery-operated systems. The output stage is short-circuit protected, making these devices conducive to ruggedized environments.

The OPA863A and OPA2863A devices (OPAx863A) are low-power, unity-gain stable, rail-to-rail input and output, voltage-feedback operational amplifiers. These devices are trimmed in package to offer high-precision performance with a maximum input offset voltage of 95µV and offset drift of 1.2µV/°C for high accuracy measurements over temperature.

Consuming only 800µA per channel, the OPAx863A offer a gain-bandwidth product of 50MHz, slew rate of 100V/µs, and a voltage noise density of 6.3nV/√Hz. The rail-to-rail input stage with 2.7V supply operation is useful in portable, battery-powered applications. The rail-to-rail input stage is well matched for gain-bandwidth product and noise across the full input common-mode voltage range, enabling excellent performance with wide-input dynamic range.

The OPAx863A include overload power limiting to limit the increase in IQ with saturated outputs, thereby preventing excessive power dissipation in power-conscious, battery-operated systems. The output stage is short-circuit protected, making these devices conducive to ruggedized environments.
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重要文件 類型 標題 格式選項 日期
* Data sheet OPAx863A High-Precision, 105MHz, Rail-to-Rail Input/Output Amplifiers datasheet (Rev. G) PDF | HTML 2024年 12月 24日
Circuit design Circuit for driving high-voltage SAR ADC with a buffered instrumentation (Rev. A) PDF | HTML 2024年 9月 20日
Circuit design Driving a low-voltage single-ended SAR ADC circuit with high-voltage input (Rev. A) PDF | HTML 2024年 9月 19日
Circuit design Inverting circuit for high-to-low voltage level translation to drive ADC (Rev. A) PDF | HTML 2024年 9月 19日
Application brief How to Design MFB Filters with Amplifier Bandwidth Limitations PDF | HTML 2024年 1月 4日
Certificate DEM-OPA-DSN-EVM EU RoHS Declaration of Conformity (DoC) 2021年 12月 6日
Application brief Higher accuracy using an external amplifier in ultrasonic flow measurement 2019年 2月 5日
Design guide High-Speed, High-Side Current Sense Reference Design 2017年 7月 19日
Application note ADC Input Protection 2013年 9月 4日
Application note A Walk Along the Signal Path (High-Speed Signal Path) 2005年 3月 30日

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DEM-OPA-DSN-EVM — 適用於採用 DSN 封裝之雙路運算放大器的評估模組

DEM-OPA-DSN-EVM 評估模組 (EVM) 是一種展示固定裝置，可協助設計人員評估 Texas Instruments Incorporated 高速、寬頻運算放大器的運作和性能。此未組裝 PC 基板相容於以 10 針腳 SON (DSN) 封裝提供的雙通道放大器產品。EVM 的設計旨在配合多種放大器配置，提供最大彈性及易用性。

使用指南: PDF | HTML
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模擬型號

OPA2863A PSpice Model (Rev. H)

SBOMBG1H.ZIP (22 KB) - PSpice Model
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OPA2863A TINA-TI Reference Design (Rev. D)

SBOMBH9D.TSC (23 KB) - TINA-TI Reference Design
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計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

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 operational-amplifier (...)

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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 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

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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 (...)
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
USON (DSN) 10 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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