Planar Monolithics Industries (PMI) has introduced model number DTA-100M40G-30-CD-1, a 5-bit, digitally controlled 30 dB PIN diode attenuator with a step resolution of 1 dB covering the frequency range of 100 MHz to 40 GHz. This model operates on +5 VDC and only draws 40 mA. Attenuation accuracy of 0.6 dB is achieved due to PMI's proprietary digital calibration techniques. This model offers excellent attenuation flatness over the full 100 MHz to 40 GHz frequency range and and operate with input power levels up to +20 dBm. This unit is supplied in a very small housing that measures 2.0 x 1.8 x 0.5 inches.