OPA344
- RAIL-TO-RAIL INPUT
- RAIL-TO-RAIL OUTPUT (within 1mV)
- LOW QUIESCENT CURRENT: 150µA typ
- MicroSIZE PACKAGES
- SOT23-5
- MSOP-8
- TSSOP-14
- GAIN-BANDWIDTH
- OPA344: 1MHz, G ≥ 1
- OPA345: 3MHz, G ≥ 5
- SLEW RATE
- OPA344: 0.8V/µs
- OPA345: 2V/µs
- THD + NOISE: 0.006%
- APPLICATIONS
- PCMCIA CARDS
- DATA ACQUISITION
- PROCESS CONTROL
- AUDIO PROCESSING
- COMMUNICATIONS
- ACTIVE FILTERS
- TEST EQUIPMENT
All trademarks are the property of their respective owners.
The OPA344 and OPA345 series rail-to-rail CMOS operational amplifiers are designed for precision, low-power, miniature applications. The OPA344 is unity gain stable, while the OPA345 is optimized for gains greater than or equal to five, and has a gain-bandwidth product of 3MHz.
The OPA344 and OPA345 are optimized to operate on a single supply from 2.5V and up to 5.5V with an input common-mode voltage range that extends 300mV beyond the supplies. Quiescent current is only 250µA (max).
Rail-to-rail input and output make them ideal for driving sampling analog-to-digital converters. They are also well suited for general purpose and audio applications and providing I/V conversion at the output of D/A converters. Single, dual and quad versions have identical specs for design flexibility.
A variety of packages are available. All are specified for operation from 40°C to 85°C. A SPICE macromodel for design analysis is available for download from www.ti.com.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | Low Power, Single-Supply, Rail-To-Rail Operational MicroAmplifier™ Series datasheet (Rev. A) | 2008/8/27 | |||
| * | 勘誤表 | Errata for OPAx344, OPAx345 Data Sheet Literature Number SBOS107 (Revision A) | 2013/4/9 | |||
| Circuit design | Single-ended input to differential output circuit (Rev. B) | PDF | HTML | 2024/10/15 | |||
| 電子書 | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | 2017/3/28 | |||
| 電子書 | The Best of Baker's Best – Amplifiers eBook | 2014/1/14 | ||||
| 類比設計期刊 | Low-cost current-shunt monitor IC revives moving-coil meter design | 2006/4/18 |
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)。
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)
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 (...)
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) (...)
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面,列出各種常見計算,從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。
除了作為獨立工具使用外,此計算機還與類比工程師口袋參考中描述的概念相得益彰。
CIRCUIT060061 — 單端輸入至差分輸出電路
SBOC510 — Simulation for Single-Ended Input to Differential Output
PMP20587 — 反相降壓升壓參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| PDIP (P) | 8 | Ultra Librarian |
| SOT-23 (DBV) | 5 | Ultra Librarian |