產品詳細資料

Number of channels 1 Vs (min) (V) 4 Vs (max) (V) 18 CMRR (min) (dB) 84 Common-mode input low (min) (V) -150 Common-mode input high (max) (V) 150 Input offset (±) (max) (V) 0.0035 Iq (typ) (mA) 0.81 Slew rate (typ) (V/µs) 5 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1 Small-signal bandwidth (typ) (Hz) 500000 Rating Catalog, Space Operating temperature range (°C) -55 to 125 Gain error (±) (max) (%) 0.047
Number of channels 1 Vs (min) (V) 4 Vs (max) (V) 18 CMRR (min) (dB) 84 Common-mode input low (min) (V) -150 Common-mode input high (max) (V) 150 Input offset (±) (max) (V) 0.0035 Iq (typ) (mA) 0.81 Slew rate (typ) (V/µs) 5 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1 Small-signal bandwidth (typ) (Hz) 500000 Rating Catalog, Space Operating temperature range (°C) -55 to 125 Gain error (±) (max) (%) 0.047
CFP (HKX) 8 155.4 mm² (6.475 mm × 24 mm)
  • QML Class V (QMLV), RHA, SMD (5962R2121201VXC)
  • Radiation performance
    • RHA up to TID = 100krad(Si)
    • ELDRS-free up to TID = 100krad(Si)
    • SEL immune to LET = 75MeV×cm2 /mg
    • SEE characterized to LET = 75MeV×cm2 /mg
  • Common-mode voltage range: ±150V
  • Minimum CMRR: 84dB from –55°C to +125°C
  • DC specifications:
    • Maximum offset voltage: 3500µV
    • Typical offset voltage drift: 3µV/°C
    • Maximum gain error: 0.047%
    • Typical gain error drift: 1.5ppm/°C
    • Typical gain nonlinearity: 0.0005% FSR
  • AC performance:
    • Small-signal bandwidth: 500kHz
    • Typical slew rate: 5V/µs
  • Wide supply range: ±2V to ±9V
    • Maximum quiescent current: 900µA
    • Output swing on ±9V supplies: ±7.5V
  • QML Class V (QMLV), RHA, SMD (5962R2121201VXC)
  • Radiation performance
    • RHA up to TID = 100krad(Si)
    • ELDRS-free up to TID = 100krad(Si)
    • SEL immune to LET = 75MeV×cm2 /mg
    • SEE characterized to LET = 75MeV×cm2 /mg
  • Common-mode voltage range: ±150V
  • Minimum CMRR: 84dB from –55°C to +125°C
  • DC specifications:
    • Maximum offset voltage: 3500µV
    • Typical offset voltage drift: 3µV/°C
    • Maximum gain error: 0.047%
    • Typical gain error drift: 1.5ppm/°C
    • Typical gain nonlinearity: 0.0005% FSR
  • AC performance:
    • Small-signal bandwidth: 500kHz
    • Typical slew rate: 5V/µs
  • Wide supply range: ±2V to ±9V
    • Maximum quiescent current: 900µA
    • Output swing on ±9V supplies: ±7.5V

The INA1H94-SP is a radiation-hardened precision unity-gain difference amplifier with a very high input common-mode voltage range. The INA1H94-SP is a single, monolithic device that consists of a precision op amp and an integrated thin-film resistor network. The INA1H94-SP can accurately measure small differential voltages in the presence of common-mode signals up to ±150V.

In many applications where galvanic isolation in not required, the INA1H94-SP can replace isolation amplifiers. The INA1H94-SP can help eliminate costly isolated input side power supplies, along with the associated ripple, noise, and quiescent current. The excellent 0.0005% typical nonlinearity, high common-mode, and 500kHz bandwidth of the INA1H94-SP makes for a compelling sensor readout device.

The INA1H94-SP is a radiation-hardened precision unity-gain difference amplifier with a very high input common-mode voltage range. The INA1H94-SP is a single, monolithic device that consists of a precision op amp and an integrated thin-film resistor network. The INA1H94-SP can accurately measure small differential voltages in the presence of common-mode signals up to ±150V.

In many applications where galvanic isolation in not required, the INA1H94-SP can replace isolation amplifiers. The INA1H94-SP can help eliminate costly isolated input side power supplies, along with the associated ripple, noise, and quiescent current. The excellent 0.0005% typical nonlinearity, high common-mode, and 500kHz bandwidth of the INA1H94-SP makes for a compelling sensor readout device.

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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 INA1H94-SP Radiation-Hardened, High Common-Mode Voltage Difference Amplifier datasheet (Rev. B) PDF | HTML 2025/8/7
* 輻射及可靠性報告 INA1H94-SP Single-Event Effects (SEE) Radiation Report PDF | HTML 2025/7/23
* 輻射及可靠性報告 INA1H94-SP Neutron Displacement Damage (NDD) Characterization 2025/7/17
* 輻射及可靠性報告 INA1H94-SP Radiation-Hardened, High Common-Mode Voltage Difference Amplifier TID Report 2025/7/17
Product overview ±150V Common-Mode Difference Amplifiers for Voltage and High-Side Current Sensing in GEO and LEO Platforms PDF | HTML 2026/4/24
選擇指南 TI Space Products (Rev. L) 2026/3/27
設計指南 Radiation-Hardened Space Battery Management System (BMS) Reference Design PDF | HTML 2025/7/30
證書 INA1H94EVM EU Declaration of Conformity (DoC) 2025/6/4

設計與開發

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開發板

INA1H94EVM — INA1H94 評估模組

INA1H94EVM 是用於測試 INA1H94-SP 的評估模組 (EVM)。EVM 採用預裝電路設計,可快速評估採用 8 針腳 CFP 封裝 (HKX) 的 INA1H94 功能。電路板可透過香蕉連接器、SMA/SMB 連接器預留腳位、測試點與預留腳位,提供輸入與輸出連接的彈性,並可搭配彈性參考電壓進行評估。
使用指南: PDF | HTML
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開發板

INAEVM — 通用儀器放大器評估模組

The universal INAEVM (Instrumentation Amplifier Evaluation Module) is available in two package options that simplify prototyping precision instrumentation amplifiers in either the SO-8 (D) package or the MSOP-8(DGK) package with the pinout shown.  See the chart in the user guide (...)

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模擬型號

INA1H94-SP PSpice for TI Reference Design

SBOMCN7.ZIP (28 KB) - PSpice 模型
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模擬型號

INA1H94-SP TINA-TI Linear Operation Checker

SBOMCM8 (38 KB) - TINA-TI 參考設計
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模擬型號

INA1H94-SP TINA-TI Model

SBOMCN6.ZIP (4 KB) - TINA-TI Spice 模型
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模擬型號

INA1H94-SP TINA-TI Reference Design

SBOMCN8 (83 KB) - TINA-TI 參考設計
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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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參考設計

TIDA-010931 — 抗輻射航太電池管理系統 (BMS) 參考設計

此參考設計展示航太級電池管理系統。電路可量測串聯的八顆電池芯,以監控電池健康狀態、充電狀態與溫度。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
CFP (HKX) 8 Ultra Librarian

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