LMH5485-SP開(kāi)發(fā)板套件編程器的評(píng)估板-運(yùn)算放大器規(guī)格書(shū)PDF中文資料

LMH5485-SP屬于開(kāi)發(fā)板套件編程器的評(píng)估板-運(yùn)算放大器。由德州儀器制造生產(chǎn)的LMH5485-SP評(píng)估板 - 運(yùn)算放大器運(yùn)算放大器評(píng)估板是裝有元器件的電路，用于提供特定集成電路或器件的工作實(shí)例。該產(chǎn)品族中的電路板提供了運(yùn)算放大器實(shí)例。每個(gè) IC 的通道類(lèi)型有單通道、雙通道、三通道、四通道和八通道，放大器類(lèi)型包括音頻、自動(dòng)歸零、緩沖器、斬波器、電流反饋、電流檢測(cè)、差動(dòng)、差分、四通道、儀表、隔離、J-FET、限幅、對(duì)數(shù)、功率、可編程增益、采樣保持、跨阻、可變?cè)鲆?、視頻、電壓反饋和零漂移。

1 Features

? Radiation tolerant

– TID assured for every wafer lot up to 30 krad

(Si)

– Single event latch-up (SEL) immune to

LET = 43 MeV-cm2 /mg

– Qualified over the military temperature range:..

–55°C to 125°C

? Gain bandwidth product (GBWP): 850 MHz

? Slew rate: 1300 V/μs

? HD2, HD3: –118 dBc, –147 dBc (100 kHz, 2 VPP)

? Input voltage noise: 2.4 nV/√Hz

? Low offset drift: ±0.5 μV/°C (typical)

? Negative rail input (NRI), rail-to-rail output (RRO)

? Power supply:

– Supply voltage range: 2.7 V to 5.4 V

– Quiescent current: 10.1 mA

– Power-down capability: 2 μA (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-SEP is a radiation tolerant, low-power,

voltage-feedback, fully differential amplifier (FDA).

This part is able to achieve a high gain bandwidth

product (GBWP) of 850-MHz, allowing it to maintain

excellent distortion performance over a wide range

of frequencies as shown in the following figure.

This wide bandwidth range is also achieved with

a relatively low power consumption of 10.1-mA

and broadband voltage noise of 2.4nV/√Hz. This

combination of power consumption, bandwidth and

noise allows the LMH5485-SEP to be well suited

for power sensitive data acquisition systems with

frequencies >10 MHz that require both the best

signal-to-noise ratio (SNR) and spurious-free dynamic

range (SFDR).

The LMH5485-SEP 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 2.7 V to 5.4 V

power supply. This device also features a low offset

voltage drift of ±0.5 μV/°C, allowing it to maintain

excellent DC performance over it's wide temperature

range of –55°C to +125°C.