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放大器
運算放大器 (op amps)
精密運算放大器 (Vos < 1mV)

OPA2334

現行

具備關機功能的雙路最大 0.05uV/C 單電源供電 CMOS 運算放大器

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OPA2383 現行 雙路、零漂移、微功率 (65μA)、高速度功率比 (2.5MHz) RRIO 運算放大器 lower Vos drift, lower noise, lower Iq, RRIO, lower Ib, 300mm

OPA2334

現行
立即訂購

產品詳細資料

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 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) 0.02 Input bias current (max) (pA) 200 GBW (typ) (MHz) 2 Features EMI Hardened, Shutdown, Zero Drift Slew rate (typ) (V/µs) 1.6 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.285 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 130 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.05 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) 0.015 Output swing headroom (to positive supply) (typ) (V) -0.015
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 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) 0.02 Input bias current (max) (pA) 200 GBW (typ) (MHz) 2 Features EMI Hardened, Shutdown, Zero Drift Slew rate (typ) (V/µs) 1.6 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.285 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 130 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.05 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) 0.015 Output swing headroom (to positive supply) (typ) (V) -0.015
VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • LOW OFFSET VOLTAGE:5 µV (max)
  • ZERO DRIFT: 0.05 µV/°C (max)
  • QUIESCENT CURRENT: 285 µA
  • SINGLE-SUPPLY OPERATION
  • SINGLE AND DUAL VERSIONS
  • SHUTDOWN
  • MicroSIZE PACKAGES
  • APPLICATIONS
    • TRANSDUCER APPLICATIONS
    • TEMPERATURE MEASUREMENT
    • ELECTRONIC SCALES
    • MEDICAL INSTRUMENTATION
    • BATTERY-POWERED INSTRUMENTS
    • HANDHELD TEST EQUIPMENT

All trademarks are the property of their respective owners.
  • LOW OFFSET VOLTAGE:5 µV (max)
  • ZERO DRIFT: 0.05 µV/°C (max)
  • QUIESCENT CURRENT: 285 µA
  • SINGLE-SUPPLY OPERATION
  • SINGLE AND DUAL VERSIONS
  • SHUTDOWN
  • MicroSIZE PACKAGES
  • APPLICATIONS
    • TRANSDUCER APPLICATIONS
    • TEMPERATURE MEASUREMENT
    • ELECTRONIC SCALES
    • MEDICAL INSTRUMENTATION
    • BATTERY-POWERED INSTRUMENTS
    • HANDHELD TEST EQUIPMENT

All trademarks are the property of their respective owners.

The OPA334 and OPA335 series of CMOS operational amplifiers use auto-zeroing techniques to simultaneously provide very 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. Single or dual supplies as low as +2.7V (±1.35V) and up to +5.5V (±2.75V) may be used. These op amps are optimized for low-voltage, single-supply operation.

The OPA334 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current of 2µA. When the Enable pin is connected high, the amplifier is active. Connecting Enable low disables the amplifier, and places the output in a high impedance state.

The OPA334 (single version with shutdown) comes in MicroSIZE SOT23-6. The OPA335 (single version without shutdown) is available in SOT23-5, and SO-8. The OPA2334 (dual version with shutdown) comes in MicroSIZE MSOP-10. The OPA2335 (dual version without shutdown) is offered in the MSOP-8 and SO-8 packages. All versions are specified for operation from –40°C to +125°C.

The OPA334 and OPA335 series of CMOS operational amplifiers use auto-zeroing techniques to simultaneously provide very 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. Single or dual supplies as low as +2.7V (±1.35V) and up to +5.5V (±2.75V) may be used. These op amps are optimized for low-voltage, single-supply operation.

The OPA334 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current of 2µA. When the Enable pin is connected high, the amplifier is active. Connecting Enable low disables the amplifier, and places the output in a high impedance state.

The OPA334 (single version with shutdown) comes in MicroSIZE SOT23-6. The OPA335 (single version without shutdown) is available in SOT23-5, and SO-8. The OPA2334 (dual version with shutdown) comes in MicroSIZE MSOP-10. The OPA2335 (dual version without shutdown) is offered in the MSOP-8 and SO-8 packages. All versions are specified for operation from –40°C to +125°C.
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OPA2387 現行 超高精密度零飄移低輸入偏壓電流運算放大器 Lower offset, noise and higher bandwidth

技術文件

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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 0.05uV/C max, Single-Supply CMOS Op Amps Zero-Drift datasheet (Rev. D) 2003/6/12
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28
應用說明 OPA334, OPA2334, OPA335, OPA2335 EMI Immunity Performance (Rev. A) 2012/10/31

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)。

模擬型號

OPAx335 PSpice Model (Rev. F)

SBOC002F.ZIP (28 KB) - PSpice 模型
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模擬型號

OPAx335 TINA-TI Reference Design (Rev. D)

SBOM746D (347 KB) - TINA-TI 參考設計
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模擬型號

OPAx335 TINA-TI Spice Model (Rev. D)

SBOM745D.ZIP (11 KB) - TINA-TI Spice 模型
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計算工具

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

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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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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VSSOP (DGS) 10 Ultra Librarian
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