Product category: Analogue and Mixed Signal ICs
News Release from: National Semiconductor | Subject: LMH6502/6503/6504
Edited by the Electronicstalk Editorial Team on 08 December 2003
Upgrade for VGA performance
Three new variable-gain amplifiers are designed as higher-performance substitutes for the popular Comlinear line of amplifiers.
Three new variable-gain amplifiers (VGAs) are designed as higher-performance substitutes for the popular Comlinear (CLC) line of amplifiers These products are ideal for use in applications such as professional and consumer video equipment, audio-video-display systems (AVDS), KVM (keyboard video mouse) networks, car radar applications, as well as instrumentation, test and medical systems (such as ultrasound)
This article was originally published on Electronicstalk on 5 Jan 2001 at 8.00am (UK)
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"Our design capabilities and VIP10 manufacturing process technology enable National to extend its leading position as an IC supplier for the most demanding uses".
The new LMH6502/6503/6504 wideband, voltage-controlled variable gain amplifiers allow high-frequency large signals (slew rate better than 1500V/us) and can also drive heavy load currents (75mA).
They additionally provide accurate device-to-device gain matching (less than +/-0.7dB) and excellent attenuation range (better than 70dB), making them ideal for automatic gain control applications in the communication, industrial and video markets.
Pin-for-pin replacements for the CLC520/522/5523, the LMH6502/6503 consumes approximately 300mW with a speed of 130MHz, and the LMH6504 consumes 100mW with a speed of 150MHz.
The LMH6502/6503 accepts a differential input and the LMH6504 is single-ended.
While the gain control is linear in decibels for a large portion of the total gain range for the LMH6502 and LMH6504, the LMH6503 is linear in volts per volt.
Analogue operational amplifiers are one of the key building blocks of practically all electronic systems.
They detect and condition real-world analogue information so that later on it can be converted and processed by digital systems.
National Semiconductor is one of the world's largest manufacturers of amplifiers and comparators, with a 12.9% market share according to research firm iSuppli.
The company is also the fastest-growing amplifier provider among the top five, with a 7.6% increase in market share between 2001 and 2002.
National's new amplifiers are based upon the VIP10 process.
Developed in National's wafer fabrication site in Arlington, Texas, VIP10 is a high speed, dielectrically isolated, complementary bipolar IC process that utilises deep trench technology on a bonded wafer for complete dielectric isolation and optimal high-speed amplifier performance.
VIP10 is the process technology that allows National to design the most power-efficient, performance-oriented high- speed amplifiers on the market today.
National's LMH6502 and LMH6503 are offered in SOIC-14 and TSSOP-14 packages and are priced at $3.48 each in quantities of 1000 units.
The LMH6504 is offered in SOIC-8 and MSOP-8 packages, and is priced at $2.52 each in quantities of 1000 units.
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