OPA371D

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单通道、5.5V、125kHz、低静态电流 (650nA)、RRIO、非完全补偿运算放大器

产品详情

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) 1.5 Rail-to-rail In, Out GBW (typ) (MHz) 0.125 Slew rate (typ) (V/µs) 0.07 Vos (offset voltage at 25°C) (max) (mV) 1750 Iq per channel (typ) (mA) 0.00068 Vn at 1 kHz (typ) (nV√Hz) 155 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.58 Iout (typ) (A) 0.018
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) 1.5 Rail-to-rail In, Out GBW (typ) (MHz) 0.125 Slew rate (typ) (V/µs) 0.07 Vos (offset voltage at 25°C) (max) (mV) 1750 Iq per channel (typ) (mA) 0.00068 Vn at 1 kHz (typ) (nV√Hz) 155 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.58 Iout (typ) (A) 0.018
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • Wide gain bandwidth product: 125kHz
  • Low quiescent current: 650nA/ch
  • Operational from supply voltage as low as 1.5V
  • Low integrated noise (0.1Hz - 10Hz): 3.9µVp-p
  • Low input offset voltage: ±0.3mV
  • Low input bias current: 500fA
  • Rail-to-rail input and output
  • Decompensated, gain ≥ 10V/V (stable)
  • Integrated RFI and EMI filters
  • Extended industrial temperature range: –40°C to 125°C
  • Wide gain bandwidth product: 125kHz
  • Low quiescent current: 650nA/ch
  • Operational from supply voltage as low as 1.5V
  • Low integrated noise (0.1Hz - 10Hz): 3.9µVp-p
  • Low input offset voltage: ±0.3mV
  • Low input bias current: 500fA
  • Rail-to-rail input and output
  • Decompensated, gain ≥ 10V/V (stable)
  • Integrated RFI and EMI filters
  • Extended industrial temperature range: –40°C to 125°C

The OPAx371D family includes single (OPA371D), dual (OPA2371D), and quad (OPA4317D) decompensated operational amplifiers optimized for high efficiency in ultra-low-voltage applications. Operating from 1.5V to 5.5V with rail-to-rail input and output swing, this family of amplifiers deliver an exceptional gain bandwidth of 125kHz with only 650nA of quiescent current. The OPAx371D enables high gain circuit configurations and longevity in battery powered systems. The availability of miniature packages also allow this amplifier family to be used effectively in high density board applications.

The OPAx371D high gain bandwidth eliminates the need for cascaded amplifier stages in signal conditioning and filtering applications such as ECG patches, motion detectors, and personal electronics, simplifying design while reducing both board space and overall system power consumption.

The OPAx371D family includes single (OPA371D), dual (OPA2371D), and quad (OPA4317D) decompensated operational amplifiers optimized for high efficiency in ultra-low-voltage applications. Operating from 1.5V to 5.5V with rail-to-rail input and output swing, this family of amplifiers deliver an exceptional gain bandwidth of 125kHz with only 650nA of quiescent current. The OPAx371D enables high gain circuit configurations and longevity in battery powered systems. The availability of miniature packages also allow this amplifier family to be used effectively in high density board applications.

The OPAx371D high gain bandwidth eliminates the need for cascaded amplifier stages in signal conditioning and filtering applications such as ECG patches, motion detectors, and personal electronics, simplifying design while reducing both board space and overall system power consumption.

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* 数据表 OPAx371D 125kHz, 650nA NanoPower, 1.5V Low Voltage, Decompensated Amplifier for Power Conscious Applications 数据表 (Rev. A) PDF | HTML 2026-8-7

设计与开发

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评估板

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AMP-PDK-EVM 套件支持五种常用的业界通用封装,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)
用户指南: PDF | HTML
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仿真模型

OPA371D, OPA2371D and OPA4371D PSpice Transient Reference Design Model

SLVMF89.ZIP (24 KB) - PSpice 模型
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仿真模型

OPA371D, OPA2371D and OPA4371D TINA-TI Reference Design

SLVMF88.TSC (28 KB) - TINA-TI 参考设计
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模拟工程师计算器旨在加快模拟电路设计工程师经常运用的许多重复性计算。该基于 PC 的工具提供图形界面,其中显示各种常见计算列表,从使用反馈电阻器设置运算放大器增益到选择合适的电路设计元件,以稳定模数转换器 (ADC) 驱动器缓冲器电路。

除了可用作独立工具之外,该计算器还能很好地与模拟工程师口袋参考中所述的概念配合使用。

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