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Gain loss defeated by wideband amps

Edited by the Electronicstalk editorial team Apr 2, 2003

To help counteract system losses at higher frequencies, ZAMP wideband amplifiers provide a frequency response that continuously rises across a bandwidth extending from 800MHz to 2.5GHz.

To help counteract system losses at higher frequencies, ZAMP wideband amplifiers provide a frequency response that continuously rises across a bandwidth extending from 800MHz to 2.5GHz.

Complementing the expanding range of Zetex LNB solutions, the IP3 optimised ZAMP001, 002 and 003 amplifier ICs meet the needs of the IF stage of satellite receivers, DBS tuners and other low power high frequency applications.

The current consumption of the three parts is very low at 12, 20 and 7.5mA, respectively, and this, combined with SC70-6 packaging and minimal requirement for external bias components, makes the ZAMP wideband amplifiers an efficient choice in space and current sensitive equipment.

Offering a low noise figure, the ZAMP001 and 003 parts provide gains of 18 and 15dB across the specified band, which remains constant over the temperature range -40 to +85C.

As inputs and outputs of the device are matched internally to 50ohm, external matching components are eliminated.

The ZAMP002 is a line-driving amplifier with an internally matched output of 75ohm and a matched input of 50ohm.

Across the band from 950 to 2150MHz the part offers a rising gain from 21.5 to 22.75dB, constant over the temperature range specified.

Where two gain stages are required, the ZAMP devices are readily cascaded to produce an optimised circuit design benefiting from low current consumption, high performance and low noise.