Ultra-low-cost amplifiers loaded with performance

Staying within cost and performance budgets for designs that need CMOS voltage-feedback amplifiers can be a daunting task.

With characteristics including rail-to-rail input and output swing, 200mA supply current and 3.7MHz bandwidth, Fairchild Semiconductor’s new FAN4174/FAN4274 are extremely competitively priced for the level of performance they offer.

The FAN4174 and FAN4274 are respectively single and dual voltage-feedback amplifiers that require only 200mA of operating current while providing 33mA of output short-circuit current.

The amplifiers are capable of operation from power supplies rated from 2.5V to 5V. The common-mode operating voltage range extends beyond both the negative and positive rails, and the output swing is to within 10mV of either rail. Input offset voltage is typically zero and has a maximum of 6mV at 25°C.

Fabricated in a Bi-CMOS semiconductor process, the FAN4174 and FAN4274 show a slew rate of 3V/ms when operating from a 5V power supply. Input noise is 25nV/√Hz.

The combination of low-power operation, rail-to-rail performance and tiny SC70-5 or SOT23-5 (FAN4174) and MSOP-8 (FAN4274) package options make this amplifier ideal for industrial and battery-powered applications.

 

FEATURES 200mA supply current per amplifier Fully specified for 2.5V and 5.5V power supply Packages: SC70-5 and SOT23-5 (FAN4174) MSOP-8 package (FAN4274)

APPLICATIONS Any portable battery-powered equipment PCMCIA cards and USB A/D buffers and sensor interfaces Active filters

 

 

 

• NXP Semiconductors’ PCA9691, page 070935

 

www.fairchildsemi.com/pf/FA/FAN4174.html