1 Features
• 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)

2 Applications
• Low-power, high-performance ADC driver:
– SAR, ΔΣ, and pipeline
• Differential DAC output driver
• Command and data handling
• Launch vehicle systems
• Space imaging systems:
– Optical imaging payload
– Radar imaging payload
– Thermal imaging cameras

3 Description
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, groundcentered
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.