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LTC5531 - Precision 300MHz to 7GHz RF Detector with Shutdown and Offset Adjustment

Datasheet

Documentation

Features

Temperature Compensated Internal Schottky Diode RF Detector
Wide Input Frequency Range: 300MHz to 7GHz*
Wide Input Power Range: –32dBm to 10dBm
Buffered Detector Output
Precision V_OUT Offset Control
Wide V_CC Range of 2.7V to 6V
Low Operating Current: 500µA
Low Shutdown Current: <2µA
Available in a Low Profile (1mm) SOT-23 Package

Typical Application

Description

The LTC5531 is an RF power detector for RF applications operating in the 300MHz to 7GHz range. A temperature compensated Schottky diode peak detector and buffer amplifier are combined in a small ThinSOT™ package. The supply voltage range is optimized for operation from a single lithium-ion cell or 3xNiMH.

The RF input voltage is peak detected using an on-chip Schottky diode. The detected voltage is buffered and supplied to the V_OUT pin. A power saving shutdown mode reduces current to less than 2µA. The initial offset voltage of 120mV ±35mV can be precisely adjusted using the V_OS pin.

The LTC5531 operates with input power levels from –32dBm to 10dBm.

*Higher frequency operation is achievable with reduced performance. Consult factory for more information.

Packaging

SOT-23

Order Info

Package Variations and Pricing

Part Number	Package	Pins	Temp	Price (1-99)	Price (1k)^*
LTC5531ES6#PBF	SOT	6	E	$1.84
LTC5531ES6#TRMPBF	SOT	6	E	$1.84	$1.33
LTC5531ES6#TRPBF	SOT	6	E	$1.84	$1.31
LTC5531ES6	SOT	6	E	$3.68
LTC5531ES6#TR	SOT	6	E	$3.68	$2.62
LTC5531ES6#TRM	SOT	6	E	$3.68	$2.66

^* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number	Description	Price	Documentation
DC710A	LTC5531ES6 \| RF Power Detector, 300MHz to 7000MHz	$100.00	Design File Manual Schematic