Eight-Bit D/A Attenuators Are Digitally Programmable

April 1, 2001

The 348 series of hermetically sealed, digitally programmable, eight-bit d/a attenuators exhibit an attenuation range of 60 kB over greater than octave bands in the 2 to 18 GHz frequency range. The attenuators have a 0.25 dB resolution with guaranteed monotonicity. The 348 models switch in less than 500 ns and the 348H models switch in less than 200 ns. Units measure 1.34" square x 0.5" thick. Performance is guaranteed over a -54°C to 110°C temperature range. The attenuators are designed primarily for digital control, but they may be controlled by an analog voltage, as well, or by a combination of analog and digital control. The 348 series operates up to 100 mW of RF power without performance degradation, while the faster 348H series operates up to 10 mW. A miniature 14-pin connector is employed for both control lines and power supply lines. High Reliability screening is also available.

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!