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TI fixed-gain amps are 3x faster

Posted: 19 Nov 2002 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? ths4300? ths4301? ths4302? ths4303?

Texas Instruments Inc. has announced the availability of the THS4300 family of fixed-gain amplifiers that are claimed to have a performance three times faster than similar, competing devices.

Manufactured using the company's BiCom-III process, the Class AB amplifiers operate from a single 3V to 5V supply and are suitable for use in wireless infrastructure equipments, as well as replacing Class A RF amplifiers.

The THS4302, the first member of the THS4300 family, features a bandwidth of 2.4GHz and a fixed gain of 5. Two other 2.4GHz devices are scheduled to follow in early 2003: the THS4301, with a fixed gain of 2 and the THS4303, with a fixed gain of 10.

Available in a 16-pin leadless MSOP PowerPad package, the THS4300 family of devices is suited for driving high-resolution data converters for a wide dynamic range in DSP. It exhibits an OIP3 of 46dBm into a 100-ohm load at 100MHz to ensure improved linearity with the same gain variation and reduced power as previous fixed-voltage op amps. It also has an IMD3 of -90dBc at 100MHz with a 1Vpp signal envelope into a 100-ohm load.

The BiCom-III process is claimed to be the industry's first complementary bipolar SiGe process and is the first to integrate both npn- and pnp-type bipolar transistors.

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