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運算放大器 (op amps)
精密運算放大器 (Vos < 1mV)

LMP2231

現行

具 CMOS 輸入的單微功耗、1.6V、精密運算放大器

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產品規格表

LMP2231

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 Vos (offset voltage at 25°C) (max) (mV) 0.15 Offset drift (typ) (µV/°C) 0.3 Input bias current (max) (pA) 1 GBW (typ) (MHz) 0.13 Slew rate (typ) (V/µs) 0.048 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.01 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 97 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.022 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -0.8 Output swing headroom (to negative supply) (typ) (V) 0.017 Output swing headroom (to positive supply) (typ) (V) -0.017 THD + N at 1 kHz (typ) (%) 0.002
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 Vos (offset voltage at 25°C) (max) (mV) 0.15 Offset drift (typ) (µV/°C) 0.3 Input bias current (max) (pA) 1 GBW (typ) (MHz) 0.13 Slew rate (typ) (V/µs) 0.048 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.01 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 97 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.022 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -0.8 Output swing headroom (to negative supply) (typ) (V) 0.017 Output swing headroom (to positive supply) (typ) (V) -0.017 THD + N at 1 kHz (typ) (%) 0.002
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • (For VS = 5V, TA = 25°C, Typical Unless Otherwise Noted)

  • Supply Current 10 µA
  • Operating Voltage Range 1.6V to 5.5V
  • TCVOS (LMP2231A) ±0.4 µV/°C (max)
  • TCVOS (LMP2231B) ±2.5µV/°C (max)
  • VOS ±150 µV (max)
  • Input Bias Current 20 fA
  • PSRR 120 dB
  • CMRR 97 dB
  • Open Loop Gain 120 dB
  • Gain Bandwidth Product 130 kHz
  • Slew Rate 58 V/ms
  • Input Voltage Noise, f = 1 kHz 60 nV/√Hz
  • Temperature Range –40°C to 125°C

All trademarks are the property of their respective owners.

  • (For VS = 5V, TA = 25°C, Typical Unless Otherwise Noted)

  • Supply Current 10 µA
  • Operating Voltage Range 1.6V to 5.5V
  • TCVOS (LMP2231A) ±0.4 µV/°C (max)
  • TCVOS (LMP2231B) ±2.5µV/°C (max)
  • VOS ±150 µV (max)
  • Input Bias Current 20 fA
  • PSRR 120 dB
  • CMRR 97 dB
  • Open Loop Gain 120 dB
  • Gain Bandwidth Product 130 kHz
  • Slew Rate 58 V/ms
  • Input Voltage Noise, f = 1 kHz 60 nV/√Hz
  • Temperature Range –40°C to 125°C

All trademarks are the property of their respective owners.

The LMP2231 is a single micropower precision amplifier designed for battery powered applications. The 1.6V to 5.5V operating supply voltage range and quiescent power consumption of only 16 μW extend the battery life in portable battery operated systems. The LMP2231 is part of the LMP precision amplifier family. The high impedance CMOS input makes it ideal for instrumentation and other sensor interface applications.

The LMP2231 has a maximum offset of 150 µV and maximum offset voltage drift of only 0.4 µV/°C along with low bias current of only ±20 fA. These precise specifications make the LMP2231 a great choice for maintaining system accuracy and long term stability.

The LMP2231 has a rail-to-rail output that swings 15 mV from the supply voltage, which increases system dynamic range. The common mode input voltage range extends 200 mV below the negative supply, thus the LMP2231 is ideal for use in single supply applications with ground sensing.

The LMP2231 is offered in 5-Pin SOT-23 and 8-pin SOIC packages.

The dual and quad versions of this product are also available. The dual, LMP2232 is offered in 8-pin SOIC and VSSOP. The quad, LMP2234 is offered in 14-pin SOIC and TSSOP.

The LMP2231 is a single micropower precision amplifier designed for battery powered applications. The 1.6V to 5.5V operating supply voltage range and quiescent power consumption of only 16 μW extend the battery life in portable battery operated systems. The LMP2231 is part of the LMP precision amplifier family. The high impedance CMOS input makes it ideal for instrumentation and other sensor interface applications.

The LMP2231 has a maximum offset of 150 µV and maximum offset voltage drift of only 0.4 µV/°C along with low bias current of only ±20 fA. These precise specifications make the LMP2231 a great choice for maintaining system accuracy and long term stability.

The LMP2231 has a rail-to-rail output that swings 15 mV from the supply voltage, which increases system dynamic range. The common mode input voltage range extends 200 mV below the negative supply, thus the LMP2231 is ideal for use in single supply applications with ground sensing.

The LMP2231 is offered in 5-Pin SOT-23 and 8-pin SOIC packages.

The dual and quad versions of this product are also available. The dual, LMP2232 is offered in 8-pin SOIC and VSSOP. The quad, LMP2234 is offered in 14-pin SOIC and TSSOP.
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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 Single Micropower, 1.6V, Precision Operational Amplifier with CMOS Inputs datasheet (Rev. E) 2013/3/25
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28
技術文章 New proof-of-concept design shows health monitoring in a small form factor smart p PDF | HTML 2016/5/19

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
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模擬型號

LMP223x PSpice Model (Rev. D)

SNOM101D.ZIP (30 KB) - PSpice 模型
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模擬型號

LMP223x TINA-TI Reference Design (Rev. B)

SNOM651B (330 KB) - TINA-TI 參考設計
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模擬型號

LMP223x TINA-TI Spice Model (Rev. B)

SNOM650B.ZIP (10 KB) - TINA-TI Spice 模型
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計算工具

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
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參考設計

TIDM-BIOSIGNMONITOR — 用於個人監測的多參數生物訊號監測器參考設計

多參數生物訊號監測器 (MPBSM) 是一款概念驗證評估模組 (EVM)，能夠測量四項主要生命徵象中的三項。MPBSM 概念驗證模組可直接測量心電圖 (ECG)、皮膚電反應 (GSR) 及皮膚溫度。MPBSM 概念驗證模組還可間接測量心率、呼吸頻率、步頻、步數及排汗率。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 5 Ultra Librarian
SOIC (D) 8 Ultra Librarian
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