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运算放大器 (op amps)
精密运算放大器 (Vos<1mV)

OPA2734

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零温漂系列、具有关断功能的双通道 0.05uV/℃（最大值）单电源 CMOS 运算放大器

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OPA2734

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数据表 立即订购

产品详情

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.005 Offset drift (typ) (µV/°C) 0.01 Input bias current (max) (pA) 200 GBW (typ) (MHz) 1.6 Features Shutdown, Zero Drift Slew rate (typ) (V/µs) 1.5 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.6 Vn at 1 kHz (typ) (nV√Hz) 135 CMRR (typ) (dB) 130 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.02 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.02 Output swing headroom (to positive supply) (typ) (V) -0.02
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.005 Offset drift (typ) (µV/°C) 0.01 Input bias current (max) (pA) 200 GBW (typ) (MHz) 1.6 Features Shutdown, Zero Drift Slew rate (typ) (V/µs) 1.5 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.6 Vn at 1 kHz (typ) (nV√Hz) 135 CMRR (typ) (dB) 130 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.02 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.02 Output swing headroom (to positive supply) (typ) (V) -0.02
VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • LOW OFFSET VOLTAGE: 5µV (max)
  • ZERO DRIFT: 0.05µV/°C max
  • QUIESCENT CURRENT: 750µA (max)
  • SINGLE-SUPPLY OPERATION
  • LOW BIAS CURRENT: 200pA (max)
  • SHUTDOWN
  • MicroSIZE PACKAGES
  • WIDE SUPPLY RANGE: 2.7V to 12V
  • APPLICATIONS
    • TRANSDUCER APPLICATIONS
    • TEMPERATURE MEASUREMENTS
    • ELECTRONIC SCALES
    • MEDICAL INSTRUMENTATION
    • BATTERY-POWERED INSTRUMENTS
    • HANDHELD TEST EQUIPMENT

All trademarks are the property of their respective owners.
  • LOW OFFSET VOLTAGE: 5µV (max)
  • ZERO DRIFT: 0.05µV/°C max
  • QUIESCENT CURRENT: 750µA (max)
  • SINGLE-SUPPLY OPERATION
  • LOW BIAS CURRENT: 200pA (max)
  • SHUTDOWN
  • MicroSIZE PACKAGES
  • WIDE SUPPLY RANGE: 2.7V to 12V
  • APPLICATIONS
    • TRANSDUCER APPLICATIONS
    • TEMPERATURE MEASUREMENTS
    • ELECTRONIC SCALES
    • MEDICAL INSTRUMENTATION
    • BATTERY-POWERED INSTRUMENTS
    • HANDHELD TEST EQUIPMENT

All trademarks are the property of their respective owners.

The OPA734 and OPA735 series of CMOS operational amplifiers use auto-zeroing techniques to simultaneously provide low offset voltage (5µV max), and near-zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high input impedance and rail-to-rail output swing within 50mV of the rails. Either single or bipolar supplies can be used in the range of +2.7V to +12V (±1.35V to ±6V). They are optimized for low-voltage, single-supply operation.

The OPA734 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current that is 9µA (max) and the output placed in a high-impedance state.

The single version is available in the MicroSIZE SOT23-5 (SOT23-6 for shutdown version) and the SO-8 packages. The dual version is available in the MSOP-8 and SO-8 packages (MSOP-10 only for the shutdown version). All versions are specified for operation from –40°C to +85°C.

The OPA734 and OPA735 series of CMOS operational amplifiers use auto-zeroing techniques to simultaneously provide low offset voltage (5µV max), and near-zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high input impedance and rail-to-rail output swing within 50mV of the rails. Either single or bipolar supplies can be used in the range of +2.7V to +12V (±1.35V to ±6V). They are optimized for low-voltage, single-supply operation.

The OPA734 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current that is 9µA (max) and the output placed in a high-impedance state.

The single version is available in the MicroSIZE SOT23-5 (SOT23-6 for shutdown version) and the SO-8 packages. The dual version is available in the MSOP-8 and SO-8 packages (MSOP-10 only for the shutdown version). All versions are specified for operation from –40°C to +85°C.
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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 0.05µV/°C max, Single-Supply CMOS Operational Amplifier Zero-Drift 数据表 (Rev. B) 2005-2-21
电子书 The Signal e-book: 有关运算放大器设计主题的博客文章汇编 PDF | HTML 英语版 PDF | HTML 2018-1-31

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

仿真模型

OPA734 PSpice Model (Rev. A)

SBOC059A.ZIP (57 KB) - PSpice 模型
支持的产品和硬件
仿真模型

OPA734 TINA-TI Reference Design (Rev. B)

SBOC091B.TSC (133 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

OPA734 TINA-TI Spice Model (Rev. A)

SBOM173A.ZIP (6 KB) - TINA-TI Spice 模型
支持的产品和硬件
仿真模型

OPAx735 PSpice Model (Rev. E)

SBOC060E.ZIP (32 KB) - PSpice 模型
支持的产品和硬件
仿真模型

OPAx735 TINA-TI Reference Design (Rev. E)

SBOC092E (298 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

OPAx735 TINA-TI Spice Model (Rev. E)

SBOM174E.ZIP (11 KB) - TINA-TI Spice 模型
支持的产品和硬件
计算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

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。

支持的产品和硬件
计算工具

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, (...)
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
VSSOP (DGS) 10 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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