OP285GSZ Ver la hoja de datos (PDF) - Analog Devices
Número de pieza
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Fabricante
OP285GSZ Datasheet PDF : 15 Pages
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Data Sheet
FEATURES
Low offset voltage: 250 μV
Low noise: 6 nV/√Hz
Low distortion: 0.0006%
High slew rate: 22 V/μs
Wide bandwidth: 9 MHz
Low supply current: 5 mA
Low offset current: 2 nA
Unity-gain stable
8-lead SOIC_N package
APPLICATIONS
High performance audio
Active filters
Fast amplifiers
Integrators
GENERAL DESCRIPTION
The OP285 is a precision high-speed amplifier featuring the
Butler Amplifier front-end. This new front-end design
combines the accuracy and low noise performance of bipolar
transistors with the speed of JFETs. This yields an amplifier
with high slew rates, low offset and good noise performance at
low supply currents. Bias currents are also low compared to
bipolar designs.
The OP285 offers the slew rate and low power of a JFET
amplifier combined with the precision, low noise and low drift
of a bipolar amplifier. Input offset voltage is laser-trimmed and
guaranteed less than 250 μV. This makes the OP285 useful in
dc-coupled or summing applications without the need for
special selections or the added noise of additional offset
adjustment circuitry. Slew rates of 22 V/μs and a bandwidth of
9 MHz make the OP285 one of the most accurate medium
speed amplifiers available.
Dual 9 MHz Precision
Operational Amplifier
OP285
PIN CONNECTION
OUT A 1
–IN A 2
+IN A 3
V– 4
8 V+
OP285 7 –IN B
TOP VIEW
(Not to Scale) 6 +IN B
5 OUT B
8-Lead Narrow Body SOIC
The combination of low noise, speed and accuracy can be used
to build high speed instrumentation systems. Circuits such as
instrumentation amplifiers, ramp generators, bi-quad filters and
dc-coupled audio systems are all practical with the OP285. For
applications that require long term stability, the OP285 has a
guaranteed maximum long term drift specification.
The OP285 is specified over the XIND—extended industrial—
(−40°C to +85°C) temperature range. The OP285 is available in
an 8-lead SOIC_N surface mount package.
Rev. B
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