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Date: 28th Aug 09
19-MHz, 36V precision JFET-input operational amplifier from
ADI
Analog Devices has introduced ADA4627, a 36V precision
JFET-input (junction field-effect transistor input) compact
operational amplifier (op amp) with low noise and distortion
over the wide temperature range. The suggested applications
include optical, broadband and microwave communications
systems, high-speed data acquisition systems, professional
audio equipment, medical and electronic instrumentation,
and automated test equipment.
The 19-MHz ADA4627 specifies 5 pA (picoamp) maximum bias
current at 25°C and 500 pA maximum is specified for
the industrial temperature range of -40°C to 85°C,
and also offers dc precision with low offset drift of 2µV/°C
maximum is specified for the extended industrial temperature
range of -40°C to +125°C.
Other key features are,
82 V/µS (micro second) slew rate
120-dB (typical) open-loop gain
High output current capacity
Low-distortion levels: driving impedances as low as 600
ohms.
6.1-nV/rt-Hz voltage noise
120-µV (microvolt) typical offset voltage (200 µV/300µV
max for the A/B grades).
±18V operation
The ADA4627 has an operating voltage range ±5-V
to ±18-V and is suitable for wide frequency range
with minimal loading, including ADC (analog-to-digital converter)
drivers and buffers, DAC (digital-to-analog converter) output
buffers, high-source-impedance sensors and photo diodes.
Availability, Pricing, Complementary Components and Tools
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Product
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Availability
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Temperature Range
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Price Each Per 1,000
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Packaging
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| ADA4627-1ARZ |
Now
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-25°C to +125°C
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$6.75
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3 mm × 3 mm
8-pin SOIC
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| ADA4627-1ACPZ |
Now
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-25°C to +125°C
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$6.75
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3 mm × 3 mm
8-pin LFCSP
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| ADA4627-1BRZ |
Now
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-40°C to +125°C
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$10.75
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3 mm × 3 mm
8-pin SOIC
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| ADA4627-1BCPZ |
Now
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-40°C to +125°C
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$10.75
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3 mm × 3 mm
8-pin LFCSP
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Design tools available for use with the ADA4627 include
the ADIsimOpAmp parametric evaluation tool, the NI Multisim
Analog Devices Edition SPICE simulation program, and Analog
Filter Wizard design and product selection tool.
For more details visit www.analog.com/pr/ADA4627
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