Date: 28/08/2009
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
Product Availability Temperature Range Price Each Per 1,000 Packaging
ADA4627-1ARZ Now -25°C to +125°C $6.75 3 mm × 3 mm
8-pin SOIC
ADA4627-1ACPZ Now -25°C to +125°C $6.75 3 mm × 3 mm
8-pin LFCSP
ADA4627-1BRZ Now -40°C to +125°C $10.75 3 mm × 3 mm
8-pin SOIC
ADA4627-1BCPZ Now -40°C to +125°C $10.75 3 mm × 3 mm
8-pin LFCSP
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