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LMH5485-SP

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抗輻射保證 (RHA) 850-MHz 全差分放大器

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產品規格表

LMH5485-SP

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.1 BW at Acl (MHz) 530 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1400 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 2.4 Iq per channel (typ) (mA) 10.1 Rail-to-rail In to V-, Out Vos (offset voltage at 25°C) (max) (mV) 0.45 Operating temperature range (°C) 25 to 25 Iout (typ) (mA) 100 2nd harmonic (dBc) 111 3rd harmonic (dBc) 149 Frequency of harmonic distortion measurement (MHz) 0.1 GBW (typ) (MHz) 850 Input bias current (max) (pA) 150000000 Features Shutdown CMRR (typ) (dB) 100 Rating Space
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.1 BW at Acl (MHz) 530 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1400 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 2.4 Iq per channel (typ) (mA) 10.1 Rail-to-rail In to V-, Out Vos (offset voltage at 25°C) (max) (mV) 0.45 Operating temperature range (°C) 25 to 25 Iout (typ) (mA) 100 2nd harmonic (dBc) 111 3rd harmonic (dBc) 149 Frequency of harmonic distortion measurement (MHz) 0.1 GBW (typ) (MHz) 850 Input bias current (max) (pA) 150000000 Features Shutdown CMRR (typ) (dB) 100 Rating Space
CFP (HKX) 8 155.4 mm² 6.475 x 24
  • QMLV (QML class V) MIL-PRF-38535 qualified, SMD 5962R1920401VXC
    • TID assured for every wafer lot up to 100krad (Si)
    • Single event latch-up (SEL) immune to LET = 77MeV-cm2/mg
    • Qualified over the military temperature range: –55°C to +125°C
  • Gain bandwidth product (GBWP): 850MHz
  • Slew rate: 1400V/µs
  • HD2, HD3: –111dBc, –149dBc (100kHz, 2VPP)
  • Input voltage noise: 2.4nV/√Hz
  • Low offset drift: ±0.5µV/°C (typical)
  • Negative rail input (NRI), rail-to-rail output (RRO)
  • Power supply:
    • Supply voltage range: 2.7V to 5.4V
    • Quiescent current: 10.1mA
    • Power-down capability: 2µA (typical)
  • QMLV (QML class V) MIL-PRF-38535 qualified, SMD 5962R1920401VXC
    • TID assured for every wafer lot up to 100krad (Si)
    • Single event latch-up (SEL) immune to LET = 77MeV-cm2/mg
    • Qualified over the military temperature range: –55°C to +125°C
  • Gain bandwidth product (GBWP): 850MHz
  • Slew rate: 1400V/µs
  • HD2, HD3: –111dBc, –149dBc (100kHz, 2VPP)
  • Input voltage noise: 2.4nV/√Hz
  • Low offset drift: ±0.5µV/°C (typical)
  • Negative rail input (NRI), rail-to-rail output (RRO)
  • Power supply:
    • Supply voltage range: 2.7V to 5.4V
    • Quiescent current: 10.1mA
    • Power-down capability: 2µA (typical)

The LMH5485-SP is a radiation-hardened assured, low-power, voltage-feedback, fully differential amplifier (FDA). This device is able to achieve a high gain bandwidth product (GBWP) of 850MHz to maintain excellent distortion performance over a wide range of frequencies. This wide bandwidth range is also achieved with a relatively low power consumption of 10.1mA and broadband voltage noise of 2.4nV/√Hz. These features make the LMH5485-SP an excellent choice for power-sensitive data acquisition systems with frequencies > 10MHz that require both the best signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR).

The LMH5485-SP features the negative-rail input required when interfacing with a dc-coupled, ground-centered source signal. This negative-rail input with a rail-to-rail output allows for easy interface between single-ended, ground-referenced, bipolar signal sources and a wide variety of successive approximation register (SAR), delta-sigma (ΔΣ), or pipeline ADCs using only a single 2.7V to 5.4V power supply. The LMH5485-SP also features a low offset voltage drift of ±0.5µV/°C to maintain excellent dc performance over a wide temperature range of –55°C to +125°C.

The LMH5485-SP is a radiation-hardened assured, low-power, voltage-feedback, fully differential amplifier (FDA). This device is able to achieve a high gain bandwidth product (GBWP) of 850MHz to maintain excellent distortion performance over a wide range of frequencies. This wide bandwidth range is also achieved with a relatively low power consumption of 10.1mA and broadband voltage noise of 2.4nV/√Hz. These features make the LMH5485-SP an excellent choice for power-sensitive data acquisition systems with frequencies > 10MHz that require both the best signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR).

The LMH5485-SP features the negative-rail input required when interfacing with a dc-coupled, ground-centered source signal. This negative-rail input with a rail-to-rail output allows for easy interface between single-ended, ground-referenced, bipolar signal sources and a wide variety of successive approximation register (SAR), delta-sigma (ΔΣ), or pipeline ADCs using only a single 2.7V to 5.4V power supply. The LMH5485-SP also features a low offset voltage drift of ±0.5µV/°C to maintain excellent dc performance over a wide temperature range of –55°C to +125°C.
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類型 標題 日期
* Data sheet LMH5485-SP Radiation Hardened Assured , Negative Rail Input, Rail-to-Rail Output, Precision, 850MHz Fully Differential Amplifier datasheet (Rev. B) PDF | HTML 2025年 11月 11日
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML 2025年 6月 17日
Selection guide TI Space Products (Rev. K) 2025年 4月 4日
Application brief Analog Front-End Design With Texas Instruments’ Tooling Landscape PDF | HTML 2022年 3月 7日
Certificate LMH5485-SP-EVM EU RoHS Declaration of Conformity (DoC) 2021年 8月 31日

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開發板

LMH5485-SP-EVM — 適用於 850-MHz 全差動放大器的 LMH5485-SP 評估模組

LMH5485-SP-EVM 是一款通用、未組裝的印刷電路板 (PCB)，專為評估採用 HKX (CFP-8) 封裝之 LMH5485-SP 時提供最佳佈線而設計。LMH5485-SP 為一抗輻射 (RHA) 負軌輸入、軌至軌輸出 (RRO)、精密、850-MHz 全差動放大器。開始評估時只需幾個零組件。為了避免寄生零組件電感，電路板只接受表面裝貼電阻器和電容器。此 EVM 設計適用於輸入和輸出端的 50-Ω 實驗室設備，以及輸入和輸出端的換衡器配置，可在單端和差動訊號之間進行簡單轉換。

使用指南: PDF | HTML
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LMH5485-SP TINA-TI Reference Circuit

SBOMBX1.TSC (79 KB) - TINA-TI Reference Design
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LMH5485-SP PSpice Circuit Model

SBOMBX3.ZIP (30 KB) - PSpice Model
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