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

OPA2237

現行

MicroAmplifier™ 系列雙單電源供電運算放大器

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產品規格表

OPA2237

現行
產品規格表 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) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.95 Offset drift (typ) (µV/°C) 2.5 Input bias current (max) (pA) 40000 GBW (typ) (MHz) 1.5 Slew rate (typ) (V/µs) 0.5 Rail-to-rail In to V- Iq per channel (typ) (mA) 0.2 Vn at 1 kHz (typ) (nV√Hz) 28 CMRR (typ) (dB) 90 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.0045 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.3 Output swing headroom (to positive supply) (typ) (V) -0.9
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.95 Offset drift (typ) (µV/°C) 2.5 Input bias current (max) (pA) 40000 GBW (typ) (MHz) 1.5 Slew rate (typ) (V/µs) 0.5 Rail-to-rail In to V- Iq per channel (typ) (mA) 0.2 Vn at 1 kHz (typ) (nV√Hz) 28 CMRR (typ) (dB) 90 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.0045 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.3 Output swing headroom (to positive supply) (typ) (V) -0.9
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Micro-size, miniature packages:
    • Single: SOT23-5, SO-8
    • Dual: VSSOP-8, SO-8
    • Quad: SSOP-16 (obsolete)
  • Low offset voltage: 750µV max (VS=5V)
  • Wide supply range:
    • Single supply: 2.7V to 36V
    • Dual supply: ±1.35V to ±18V
  • Low quiescent current: 350µA max
  • Wide bandwidth: 1.5MHz
  • Micro-size, miniature packages:
    • Single: SOT23-5, SO-8
    • Dual: VSSOP-8, SO-8
    • Quad: SSOP-16 (obsolete)
  • Low offset voltage: 750µV max (VS=5V)
  • Wide supply range:
    • Single supply: 2.7V to 36V
    • Dual supply: ±1.35V to ±18V
  • Low quiescent current: 350µA max
  • Wide bandwidth: 1.5MHz

The OPAx237 op amp family is one of Texas Instruments’ MicroAmplifier series of miniature products. In addition to small size, these devices feature low offset voltage, low quiescent current, low bias current, and a wide supply range. Single, and dual versions have identical specifications for maximum design flexibility. These devices are designed for single-supply, battery-operated, and space-limited applications, such as PCMCIA cards and other portable instruments.

The OPAx237 series op amps operate from either single or dual supplies. When operated from a single supply, the input common-mode range extends below ground and the output can swing to within 10mV of ground. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.

Single, dual, and quad versions are offered in space-saving surface-mount packages. The single version is available in the ultra-miniature 5-lead SOT23-5 and SOIC-8 surface-mount packages. The dual version comes in miniature VSSOP-8 and SO-8 surface-mount packages. The quad version is obsolete. The VSSOP-8 has the same lead count as a the SO-8, but at half the size. The SOT23-5 is even smaller, at one-fourth the size of an SOIC-8. All are specified for –40°C to +85°C operation. A macromodel is available for design analysis.

The OPAx237 op amp family is one of Texas Instruments’ MicroAmplifier series of miniature products. In addition to small size, these devices feature low offset voltage, low quiescent current, low bias current, and a wide supply range. Single, and dual versions have identical specifications for maximum design flexibility. These devices are designed for single-supply, battery-operated, and space-limited applications, such as PCMCIA cards and other portable instruments.

The OPAx237 series op amps operate from either single or dual supplies. When operated from a single supply, the input common-mode range extends below ground and the output can swing to within 10mV of ground. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.

Single, dual, and quad versions are offered in space-saving surface-mount packages. The single version is available in the ultra-miniature 5-lead SOT23-5 and SOIC-8 surface-mount packages. The dual version comes in miniature VSSOP-8 and SO-8 surface-mount packages. The quad version is obsolete. The VSSOP-8 has the same lead count as a the SO-8, but at half the size. The SOT23-5 is even smaller, at one-fourth the size of an SOIC-8. All are specified for –40°C to +85°C operation. A macromodel is available for design analysis.
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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 OPAx237 Single-Supply Operational Amplifiers MicroAmplifier Series datasheet (Rev. B) PDF | HTML 2025/4/11
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 Precision Absolute Value Circuits 2000/10/2

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
支援產品和硬體
模擬型號

OPAx237 PSpice Model (Rev. B)

SBOM053B.ZIP (32 KB) - PSpice 模型
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模擬型號

OPAx237 TINA-TI Reference Design (Rev. A)

SBOMAT6A (337 KB) - TINA-TI 參考設計
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模擬型號

OPAx237 TINA-TI Spice Model (Rev. A)

SBOMAT7A.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, (...)
支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSSOP (DGK) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
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