运算放大器,低电压

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NE5230 会议款极低电压运算放大器,可使用低至 1.8 V 或高至 15 V 的电压运行。另外,还可使用分割或单电源,应用单电源时,输出可摆动至接地。有一个偏置调节引脚,控制该器件所需的电源电流,因此控制其功耗。如果该零件以 +/-0.9 V 电源电压运行,则电流控制引脚保持开路时,所需电流仅为 110 uA。即使功耗如此之低,该器件仍然能够实现 250 kHz 的典型一致增益带宽。偏置调节引脚联接负向电源时,如果电源电流增加至 600 uA,一致增益带宽典型值则为 600 kHz。在此模式下,该零件将提供超出音频范围的全功率输出。NE5230 还具有一个独特的输出级,匀速共模输入范围升至正电压以上和负电压以下 250 mV。因此为低电压应用提供了最大的输入电压。该零件还具有内部补偿,以减少外部组件数量。NE5230 具有 +/-40 nA 典型值的低输入偏置电流,以及 125 dB 的大型开环增益。在传感器应用中使用该器件时,这两个规格有利。由于闭环系统中的“过大”环路增益,大型开环增益提供了非常准确的信号处理,输出级为 AB 级类型,可摆动到电源电压的 100 mV 之内,实现很多应用所需的最大动态范围。因为其低功耗、一致增益带宽和 30 nV//Hz 噪声规格,NE5230 适用于便携式音频设备和远程传感器。

  • Remote Transducer Amplifier
  • Rail−to−Rail Comparators
  • Half−wave Rectification without Diodes
  • Remote Temperature Transducer with 4.0 to 20 mA Output Transmission
  • Portable Precision Instruments
  • Portable Audio Equipment
  • Works Down to 1.8 V Supply Voltages
  • Adjustable Supply Current
  • Low Noise
  • Common−mode Includes Both Rails
  • VOUT Within 100 mV of Both Rails

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CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Rail to Rail

Channels

VS Min (V)

VS Max (V)

Iq Typ (mA)

VOS Max (mV)

GBW Typ (MHz)

SR Typ (V/µs)

IO Typ (mA)

ΔVOS/ΔT (μV/C)

eN (nV/√Hz)

Ibias Typ (pA)

CMRR Typ (dB)

Architecture

Temperature Range (°C)

Reference Price

NCV5230DR2G

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CAD Model

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NE5230D

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NE5230DG

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NE5230DR2

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NE5230DR2G

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Obsolete

CAD Model

Pb

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NE5230N

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NE5230NG

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SA5230D

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SA5230DG

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SA5230DR2

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SA5230DR2G

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SA5230N

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SA5230NG

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SE5230D

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SE5230DG

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SE5230DR2

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CAD Model

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SE5230DR2G

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Obsolete

CAD Model

Pb

A

H

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SOIC-8

1

260

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N

Input/Output

1

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-40 to 125

Price N/A

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