AD8363 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD8363
Manufacturer

ADI
ChipWorker Part#

CW389485826
RoHS

Lead free / RoHS Compliant
Description

50Hz to 6GHz 50dB TruPwr Detector
Documentation

Datasheet

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AD8363 Specifications

Attribute	Attribute Value

Part Number	AD8363
Manufacturer	ADI
ChipWorker Part#	CW389485826
Documentation	Datasheet
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Product Lifecycle Status	Recommended for New Designs
RoHS	RoHS Compliant

Product Description

Product Details
The AD8363 is a true rms responding power detector that can be directly driven with a single-ended 50 Ω source. This feature makes the AD8363 frequency versatile by eliminating the need for a balun or any other form of external input tuning for operation up to 6 GHz.
The AD8363 provides an accurate power measurement, independent of waveform, for a variety of high frequency communication and instrumentation systems. Requiring only a single supply of 5 V and a few capacitors, it is easy to use and provides high measurement accuracy. The AD8363 can operate from arbitrarily low frequencies to 6 GHz and can accept inputs that have rms values from less than −50 dBm to at least 0 dBm, with large crest factors exceeding the requirements for accurate measurement of WiMAX, CDMA, W-CDMA, TD-SCDMA, multicarrier GSM, and LTE signals.
The AD8363 can determine the true power of a high frequency signal having a complex low frequency modulation envelope, or it can be used as a simple low frequency rms voltmeter. The high-pass corner generated by its internal offset-nulling loop can be lowered by a capacitor added on the CHPF pin.
Used as a power measurement device, VOUT is connected to VSET. The output is then proportional to the logarithm of the rms value of the input. The reading is presented directly in decibels and is conveniently scaled to 52 mV/dB, or approximately 1 V per decade; however, 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.
The AD8363 has 1.5 mW power consumption when powered down by a logic high applied to the TCM2/PWDN pin. It powers up within about 30 μs to its nominal operating current of 60 mA at 25°C. The AD8363 is available in a 4 mm × 4 mm 16-lead LFCSP for operation over the −40°C to +125°C temperature range.
A fully populated RoHS-compliant evaluation board is also available.
**Applications:**
* Power amplifier linearization/control loops
* Multi-Standard, Multi-Carrier Wireless Infrastructure (MCGSM, CDMA,WCDMA, TD-SCDMA, WiMAX, LTE)
* Transmitter power controls
* Transmitter signal strength indication (TSSI)
* RF instrumentation
### Features and Benefits
Accurate rms-to-dc conversion from 50 Hz to 6 GHz
Single-ended input dynamic range of >50 dB
No balun or external input tuning required
Waveform and modulation independent RF power detection
Linear-in-decibels output, scaled: 52 mV/dB
Log conformance error: <±0.15 dB
Temperature stability: <±0.5 dB
Voltage supply range: 4.5 V to 5.5 V
Operating temperature range: −40°C to +125°C
Power-down capability to 1.5 mW
Small footprint, 4 mm × 4 mm, LFCSP

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