ADL5906
ADL5906 is 10 MHz to 10 GHz 67 dB TruPwr Detector manufactured by Analog Devices.
FEATURES
- Accurate rms-to-dc conversion from 10 MHz to 10 GHz
- Single-ended ±1.0 d B dynamic range: 67 d B at 2.14 GHz
- No balun or external input matching required
- Response independent of waveform types, such as GSM-EDGE/
CDMA/W-CDMA/TD-SCDMA/Wi MAX/LTE
- Logarithmic slope: 55 m V/d B
- Temperature stability: <±1 d B from
- 40°C to +125°C
- Operating temperature:
- 55°C to +125°C
- Supply voltage: 4.75 V to 5.25 V
- Sleep current: 250 µA
- Pin patible with ADL5902 and AD8363
APPLICATIONS
- Power amplifier linearization/control loops
- Transmitter signal strength indication (TSSI)
- RF instrumentation
GENERAL DESCRIPTION
The ADL5906 is a true rms responding power detector that has a 67 d B measurement range when driven with a single-ended 50 Ω source. The easy to use input makes the ADL5906 frequency versatile by eliminating the need for a balun or any other form of external input tuning for operation up to 10 GHz.
The ADL5906 provides a solution in a variety of high frequency systems requiring an accurate rms measurement of signal power. The ADL5906 can operate from 10 MHz to 10 GHz and can accept inputs from
- 65 d Bm to +8 d Bm with varying crest factors and bandwidths, such as GSM-EDGE, CDMA, W-CDMA, TD-SCDMA, Wi MAX, and OFDM-based LTE carriers. In addition, its temperature stability over the broad temperature range of
- 55°C to +125°C makes it ideally suited for a wide array of munications, military, industrial, and instrumentation applications.
Used as a power measurement device, VRMS is connected to VSET. The output is then proportional to the logarithm of the rms value of the input. In other words, the reading is presented directly
FUNCTIONAL BLOCK DIAGRAM
Figure 1. in decibels and is scaled 1.1 V per decade, or 55 m V/d B; other slopes are easily arranged. In controller mode, the voltage applied to VSET determines the power level required at the input to null the deviation from the setpoint. The output buffer can provide high load currents. Requiring only a single...
