LMH5485-SP

ACTIVO

Radiation-hardened, QML-V, 850MHz fully differential amplifier

Detalles del producto

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 mm × 24 mm)
  • 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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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LMH5485-SP Radiation Hardened Assured , Negative Rail Input, Rail-to-Rail Output, Precision, 850MHz Fully Differential Amplifier datasheet (Rev. C) PDF | HTML 9/06/2026
Guía de selección TI Space Products (Rev. L) 27/03/2026
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML 17/06/2025
Application brief Analog Front-End Design With Texas Instruments’ Tooling Landscape PDF | HTML 7/03/2022
Certificado LMH5485-SP-EVM EU RoHS Declaration of Conformity (DoC) 31/08/2021

Diseño y desarrollo

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Placa de evaluación

LMH5485-SP-EVM — Módulo de evaluación LMH5485-SP para amplificador totalmente diferencial de 850 MHz

El LMH5485-SP-EVM es una placa de circuito impreso (PCB) genérica y sin poblar diseñada para proporcionar un diseño optimizado a la hora de evaluar el LMH5485-SP en un encapsulado HKX (CFP-8). El LMH5485-SP es un amplificador de precisión totalmente diferencial de 850 MHz con entrada de carril (...)

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Modelo de simulación

LMH5485-SP TINA-TI Reference Circuit

SBOMBX1 (79 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

LMH5485-SP PSpice Circuit Model

SBOMBX3.ZIP (30 KB) - Modelo PSpice
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