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運算放大器 (op amps)
一般用途運算放大器

LPV521

現行

單路、5.5V、6.2kHz、350nA 靜態電流、1.6V 供應 (最小值)、RRIO 運算放大器

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產品規格表

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open-in-new 比較替代產品
功能相同，但針腳輸出與所比較的裝置不同。
TLV8541 現行 單路、3.6-V、8-kHz、超低靜態電流 (550-nA)、RRIO 運算放大器 Higher GBW (0.008 MHz), faster slew rate (0.0035 V/us), higher output current (30 mA)

LPV521

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.6 Rail-to-rail In, Out GBW (typ) (MHz) 0.0062 Slew rate (typ) (V/µs) 0.0024 Vos (offset voltage at 25°C) (max) (mV) 1 Iq per channel (typ) (mA) 0.000351 Vn at 1 kHz (typ) (nV√Hz) 255 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.4 Features EMI Hardened Input bias current (max) (pA) 1 CMRR (typ) (dB) 102 Iout (typ) (A) 0.022 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.0004 Input common mode headroom (to positive supply) (typ) (V) 0.000351 Output swing headroom (to negative supply) (typ) (V) 0.003 Output swing headroom (to positive supply) (typ) (V) -0.003
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.6 Rail-to-rail In, Out GBW (typ) (MHz) 0.0062 Slew rate (typ) (V/µs) 0.0024 Vos (offset voltage at 25°C) (max) (mV) 1 Iq per channel (typ) (mA) 0.000351 Vn at 1 kHz (typ) (nV√Hz) 255 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.4 Features EMI Hardened Input bias current (max) (pA) 1 CMRR (typ) (dB) 102 Iout (typ) (A) 0.022 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.0004 Input common mode headroom (to positive supply) (typ) (V) 0.000351 Output swing headroom (to negative supply) (typ) (V) 0.003 Output swing headroom (to positive supply) (typ) (V) -0.003
SOT-SC70 (DCK) 5 4.2 mm² (2 mm × 2.1 mm) PDIP (P) 8 92.5083 mm² (9.81 mm × 9.43 mm)
  • For VS = 5V, typical unless otherwise noted:
    • Supply current at VCM = 0.3V: 400nA (max)
    • Operating voltage range: 1.6V to 5.5V
    • Low TCVOS: 3.5µV/°C (max)
    • VOS: 1mV (max)
    • Input bias current: 40fA
    • PSRR: 109dB
    • CMRR: 102dB
    • Open-loop gain: 132dB
    • Gain bandwidth product: 6.2kHz
    • Slew rate: 2.4V/ms
    • Input voltage noise at f = 100Hz: 255nV/√Hz
    • Temperature range: −40°C to +125°C
  • For VS = 5V, typical unless otherwise noted:
    • Supply current at VCM = 0.3V: 400nA (max)
    • Operating voltage range: 1.6V to 5.5V
    • Low TCVOS: 3.5µV/°C (max)
    • VOS: 1mV (max)
    • Input bias current: 40fA
    • PSRR: 109dB
    • CMRR: 102dB
    • Open-loop gain: 132dB
    • Gain bandwidth product: 6.2kHz
    • Slew rate: 2.4V/ms
    • Input voltage noise at f = 100Hz: 255nV/√Hz
    • Temperature range: −40°C to +125°C

The LPV521 is a single, nanopower, 552nW amplifier designed for ultra-long-life battery applications. The operating voltage range of 1.6V to 5.5V coupled with typically 351nA of supply current make this device an excellent choice for RFID readers and remote-sensor nanopower applications. The device has an input common-mode voltage 0.1V over the rails, specified TCVOS, and voltage-swing-to-the-rail output performance. The LPV521 has a carefully designed CMOS input stage that outperforms competitors with typically 40fA IBIAS currents. This low input current significantly reduces IBIAS and IOS errors introduced in megohm resistance, high-impedance photodiode and charge sense applications. The LPV521 is a member of the PowerWise family, and has an exceptional power-to-performance ratio.

The wide input common-mode voltage range, specified 1mV VOS and 3.5µV/°C TCVOS enables accurate and stable measurement for both high-side and low-side current sensing.

EMI protection is designed into the device to reduce sensitivity to unwanted RF signals from cell phones or other RFID readers.

The LPV521 is offered in 5-pin SC70 and 8-pin PDIP packages.

The LPV521 is a single, nanopower, 552nW amplifier designed for ultra-long-life battery applications. The operating voltage range of 1.6V to 5.5V coupled with typically 351nA of supply current make this device an excellent choice for RFID readers and remote-sensor nanopower applications. The device has an input common-mode voltage 0.1V over the rails, specified TCVOS, and voltage-swing-to-the-rail output performance. The LPV521 has a carefully designed CMOS input stage that outperforms competitors with typically 40fA IBIAS currents. This low input current significantly reduces IBIAS and IOS errors introduced in megohm resistance, high-impedance photodiode and charge sense applications. The LPV521 is a member of the PowerWise family, and has an exceptional power-to-performance ratio.

The wide input common-mode voltage range, specified 1mV VOS and 3.5µV/°C TCVOS enables accurate and stable measurement for both high-side and low-side current sensing.

EMI protection is designed into the device to reduce sensitivity to unwanted RF signals from cell phones or other RFID readers.

The LPV521 is offered in 5-pin SC70 and 8-pin PDIP packages.
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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 LPV521 NanoPower, 1.8V, RRIO, CMOS Input, Operational Amplifier datasheet (Rev. E) PDF | HTML 2024/7/12
Application brief Simplifying Environmental Measurements in Power Conscious Factory and Building A (Rev. A) 2018/1/9
應用說明 Advantages of using Nanopower Zero Drift Amp for Mobile Phone Battery Voltage Mo (Rev. A) 2017/12/21
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28

設計與開發

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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 (...)

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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
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模擬型號

LPV521 PSpice Model (Rev. A)

SNOM024A.ZIP (100 KB) - PSpice 模型
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模擬型號

LPV521 TINA-TI Reference Design

SNOM784 (18 KB) - TINA-TI 參考設計
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模擬型號

LPV521 TINA-TI Spice Model

SNOM785.ZIP (7 KB) - TINA-TI Spice 模型
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參考設計

TIDA-00759 — 支援 Bluetooth Smart 可實現 10 年鈕扣電池壽命的低功耗 PIR 動作偵測器參考設計

此參考設計使用毫微功率運算放大器、比較器與 SimpleLink™ 超低功率 2.4GHz 無線微控制器 (MCU) 平台，展示低功率無線運動偵測器實作。  這些技術可實現超長電池壽命，使用標準 CR2032 鋰離子鈕釦電池的時間可超過 10 年，可用於運動偵測或透過占用偵測進行照明控制等應用。  PIR 感測器的靈敏度高達 30 英呎，關機電流為 1.63µA。  該設計指南包含系統設計技巧、詳細測試結果和關於快速啟動和執行設計的資訊。

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參考設計

TIDA-01546 — 電池供電智慧流量計的電池和系統健全狀況監控參考設計

此參考設計展示電池供電智慧流量表的電池和系統健康狀態監控所適用的創新解決方案。  電池監控子系統提供高度準確的能源測量和健康狀態 (SOH) 預測，可預測電池使用壽命。系統監控子系統可防護會造成電池使用壽命大幅降低的過電流情況。  此處示範的技術有助於延長電池供電電表的有效使用壽命，並為公用事業操作員最佳化整體擁有成本。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-SC70 (DCK) 5 Ultra Librarian
PDIP (P) 8 Ultra Librarian
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