Product category:
Analogue and Mixed Signal ICs
News Release from: Analog Devices | Subject: ADA4857
Edited by the Electronicstalk Editorial
Team on 14 February 2008
Voltage-feedback amp cuts power drain
High-speed op amp consumes 5mA, less than half the power of competing voltage-feedback amps, with a well-balanced combination of performance specifications.
New from Analog Devices, the ADA4857 is billed as the lowest-power voltage-feedback amplifier in its class, making it ideal for densely populated, thermally sensitive instrumentation equipment that requires high-speed signal conditioning Operating at 850MHz, the ADA4857 high-speed op amp consumes 5mA, less than half the power of competing voltage-feedback amps, with a well-balanced combination of performance specifications
This article was originally published on Electronicstalk on 14 Sep 2001 at 8.00am (UK)
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The ADA4857 reduces input noise to 4.4nV/(rt)Hz, which is 50% lower than competing amps.
With - 91dBc distortion at 10MHz, the new amplifier provides a 10dB improvement over voltage-feedback amps that dissipate twice the power.
For space-constrained medical imaging, ATE and other multichannel instruments, the 5mA supply current minimises the need for active thermal management devices and passive cooling elements, such as fans and heatsinks, thus allowing system designers to reduce development costs and design complexity.
The ADA4857 is sampling now with full volume production scheduled for April 2008.
The single-channel ADA4857-1 is available in 3 x 3mm 8-lead LFCSP (lead-frame chip-scale package) and 8-lead SOIC (small-outline IC) packages.
The dual ADA4857-2 is available in a 4 x 4mm 16-lead LFCSP.
The single-channel ADA4857-1 is priced at US $0.85 per unit, and the dual ADA4857-2 is priced at US $1.39 per unit, both in 1000-unit quantities.
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