OPA725

現行

單路、12V、20MHz 運算放大器

現在提供此產品的更新版本

open-in-new 比較替代產品
引腳對引腳且具備與所比較裝置相同的功能
TLV9161 現行 單路、16-V、11-MHz、軌對軌輸入/輸出、低偏移電壓、低雜訊運算放大器 Rail-to-rail I/O, wider supply range (2.7 V to 16 V), faster slew rate (33 V/us), lower offset voltage (1 mV), lower power (2.48 mA), lower noise (6.8 nV/√Hz), higher output current (73 mA),

產品詳細資料

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4 Rail-to-rail In to V-, Out GBW (typ) (MHz) 20 Slew rate (typ) (V/µs) 30 Vos (offset voltage at 25°C) (max) (mV) 3 Iq per channel (typ) (mA) 4.3 Vn at 1 kHz (typ) (nV√Hz) 10 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 4 Input bias current (max) (pA) 200 CMRR (typ) (dB) 94 Iout (typ) (A) 0.04 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -2 Output swing headroom (to negative supply) (typ) (V) 0.1 Output swing headroom (to positive supply) (typ) (V) -0.1
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4 Rail-to-rail In to V-, Out GBW (typ) (MHz) 20 Slew rate (typ) (V/µs) 30 Vos (offset voltage at 25°C) (max) (mV) 3 Iq per channel (typ) (mA) 4.3 Vn at 1 kHz (typ) (nV√Hz) 10 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 4 Input bias current (max) (pA) 200 CMRR (typ) (dB) 94 Iout (typ) (A) 0.04 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -2 Output swing headroom (to negative supply) (typ) (V) 0.1 Output swing headroom (to positive supply) (typ) (V) -0.1
SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • BANDWIDTH: 20MHz
  • SLEW RATE: 30V/µs
  • FAST 16-Bit SETTLING TIME
  • LOW NOISE: 6nV/Hz (typ) at 100kHz
  • EXCELLENT CMRR, PSRR, and AOL
  • RAIL-TO-RAIL OUTPUT
  • CM RANGE INCLUDES GND
  • THD+N: 0.0003% (typ) at 1kHz
  • QUIESCENT CURRENT: 5.5mA/ch (max)
  • SUPPLY VOLTAGE: 4V to 12V
  • SHUTDOWN MODE (OPAx726): 6µA/ch
  • APPLICATIONS
    • OPTICAL NETWORKING
    • TRANSIMPEDANCE AMPLIFIERS
    • INTEGRATORS
    • ACTIVE FILTERS
    • A/D CONVERTER BUFFERS
    • I/V CONVERTER FOR DACs
    • PORTABLE AUDIO
    • PROCESS CONTROL
    • TEST EQUIPMENT

All trademarks are the property of their respective owners.

  • BANDWIDTH: 20MHz
  • SLEW RATE: 30V/µs
  • FAST 16-Bit SETTLING TIME
  • LOW NOISE: 6nV/Hz (typ) at 100kHz
  • EXCELLENT CMRR, PSRR, and AOL
  • RAIL-TO-RAIL OUTPUT
  • CM RANGE INCLUDES GND
  • THD+N: 0.0003% (typ) at 1kHz
  • QUIESCENT CURRENT: 5.5mA/ch (max)
  • SUPPLY VOLTAGE: 4V to 12V
  • SHUTDOWN MODE (OPAx726): 6µA/ch
  • APPLICATIONS
    • OPTICAL NETWORKING
    • TRANSIMPEDANCE AMPLIFIERS
    • INTEGRATORS
    • ACTIVE FILTERS
    • A/D CONVERTER BUFFERS
    • I/V CONVERTER FOR DACs
    • PORTABLE AUDIO
    • PROCESS CONTROL
    • TEST EQUIPMENT

All trademarks are the property of their respective owners.

The OPA725 and OPA726 series op amps use a state-of-the-art 12V analog CMOS process, and combine outstanding ac performance with low bias current and excellent CMRR, PSRR, and AOL. The 20MHz Gain-Bandwidth (GBW) Product is achieved by using a proprietary and patent-pending output stage design. These characteristics allow excellent 16-bit settling times for driving 16-bit Analog-to-Digital Converters (ADCs).

Excellent ac characteristics, such as 20MHz GBW, 30V/µs slew rate and 0.0003% THD+N make the OPA725 and OPA726 well-suited for communication, high-end audio, and active filter applications. With bias current of less than 200pA, they are well-suited for use as transimpedance (I/V-conversion) amplifiers for monitoring optical power in ONET applications.

The OPA725 and OPA726 op amps can be used in single-supply applications from 4V up to 12V, or dual-supply from ±2V to ±6V. The output swings to within 150mV of the rails, maximizing dynamic range. The shutdown versions (OPAx726) reduce the quiescent current to less than 6µA and feature a reference pin for easy shutdown operation with standard CMOS logic in dual supply applications.

The OPA725 (single) is available in SOT23-5 and SO-8 [ackages, and the OPA2725 (dual) is available in MSOP-8 (Q1 ’04) and SO-8 packages. The OPA726 (single with shutdown) is available in MSOP-8 and SO-8. The OPA2726 (dual with shutdown) is available in MSOP-10. All versions are specified for operation from –40°C to +125°C.

The OPA725 and OPA726 series op amps use a state-of-the-art 12V analog CMOS process, and combine outstanding ac performance with low bias current and excellent CMRR, PSRR, and AOL. The 20MHz Gain-Bandwidth (GBW) Product is achieved by using a proprietary and patent-pending output stage design. These characteristics allow excellent 16-bit settling times for driving 16-bit Analog-to-Digital Converters (ADCs).

Excellent ac characteristics, such as 20MHz GBW, 30V/µs slew rate and 0.0003% THD+N make the OPA725 and OPA726 well-suited for communication, high-end audio, and active filter applications. With bias current of less than 200pA, they are well-suited for use as transimpedance (I/V-conversion) amplifiers for monitoring optical power in ONET applications.

The OPA725 and OPA726 op amps can be used in single-supply applications from 4V up to 12V, or dual-supply from ±2V to ±6V. The output swings to within 150mV of the rails, maximizing dynamic range. The shutdown versions (OPAx726) reduce the quiescent current to less than 6µA and feature a reference pin for easy shutdown operation with standard CMOS logic in dual supply applications.

The OPA725 (single) is available in SOT23-5 and SO-8 [ackages, and the OPA2725 (dual) is available in MSOP-8 (Q1 ’04) and SO-8 packages. The OPA726 (single with shutdown) is available in MSOP-8 and SO-8. The OPA2726 (dual with shutdown) is available in MSOP-10. All versions are specified for operation from –40°C to +125°C.

下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件,然後再試一次。
檢視所有 4
重要文件 類型 標題 格式選項 日期
* Data sheet OPA725 and OPA726 Series: Very Low-Noise, High-Speed, 12V CMOS Op Amp datasheet (Rev. B) 2004年 1月 8日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
Application note High-Voltage Signal Conditioning for Low-Voltage ADCs (Rev. B) PDF | HTML 2015年 5月 18日
Application note OPA725, OPA2725, OPA726, OPA2726 EMI Immunity Performance (Rev. A) 2012年 11月 2日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

AMP-PDK-EVM — 放大器性能開發套件評估模組

放大器性能開發套件 (PDK) 是一款評估模組 (EVM) 套件,可測試通用運算放大器 (op amp) 參數,並與大多數運算放大器和比較器相容。EVM 套件提供主板和多個插槽式子卡選項,可滿足封裝需求,使工程師能夠快速評估和驗證裝置性能。

AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝,包括:

  • D (SOIC-8 和 SOIC-14)
  • PW (TSSOP-14)
  • DGK (VSSOP-8)
  • DBV (SOT23-5 和 SOT23-6)
  • DCK (SC70-5 和 SC70-6)
使用指南: PDF | HTML
開發板

DIP-ADAPTER-EVM — DIP 轉接器評估模組

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

使用指南: PDF
TI.com 無法提供
開發板

DIYAMP-EVM — 通用自製 (DIY) 放大器電路評估模組

DIYAMP-EVM 是一系列評估模組 (EVM),提供工程師與自組愛好者 (DIYers) 實作型放大器電路,協助快速驗證設計概念並模擬結果。提供三種業界標準封裝(SC70、SOT-23 和 SOIC)與 12 種常見放大器配置,支援單電源與雙電源架構的放大器、濾波器、穩定補償與比較器應用。

DIYAMP-EVM 可快速製作電路原型,並採用常見的 0805 或 0603 表面裝載元件。透過多種組合方式,此 EVM 可建立從簡單放大器電路到複雜訊號鏈的各種評估電路。此 EVM 支援模擬板、超微型 A 版 (SMA)、接頭和有線介面連接方式,並與大多數類比數位轉換器 (ADC) (...)

使用指南: PDF | HTML
模擬型號

OPA725 PSpice Model (Rev. B)

SBOC028B.ZIP (57 KB) - PSpice Model
模擬型號

OPA725 TINA-TI Reference Design (Rev. B)

SBOC089B.TSC (105 KB) - TINA-TI Reference Design
模擬型號

OPA725 TINA-TI Spice Model (Rev. B)

SBOM171B.ZIP (6 KB) - TINA-TI Spice Model
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 (...)

支援產品和硬體

支援產品和硬體

設計工具

CIRCUIT060013 — 具有 T 網路回饋電路的反相放大器

此設計可反轉輸入訊號 VIN,並使用 1000 V/V 或 60 dB 訊號增益。具有 T 回饋網路的反相放大器可在沒有較小 R4 值或超大回饋電阻器值的情況下獲得高增益。
設計工具

CIRCUIT060015 — 可調式參考電壓電路

此電路結合反相及非反相放大器,讓參考電壓可從負輸入電壓向上調整至輸入電壓。可加入增益以提高最大負參考位準。
設計工具

CIRCUIT060074 — 具有比較器電路的高壓側電流感測

此高壓側電流感測解決方案使用一個具有軌對軌輸入共模範圍的比較器,若負載電流上升到 1 A 以上,便在比較器輸出 (COMP OUT) 建立過電流警示 (OC 警示) 訊號。此實作中的 OC 訊號為低電位作動。因此當超過 1-A 閾值時,比較器輸出會變低。實作磁滯後會在負載電流降低至 0.5 A (減少 50%) 時,讓 OC-Alert 返回邏輯高狀態。此電路利用開漏輸出比較器,為控制數位邏輯輸入針腳而進行電平轉換輸出高邏輯電平。對於需要驅動 MOSFET 開關閘極的應用,建議使用具推挽輸出的比較器。
模擬工具

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。 

在 PSpice for TI 設計與模擬工具中,您可以搜尋 TI (...)
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
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

內容係由 TI 和社群貢獻者依「現狀」提供,且不構成 TI 規範。檢視使用條款

若有關於品質、封裝或訂購 TI 產品的問題,請參閱 TI 支援。​​​​​​​​​​​​​​

影片