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

The LTC®5531 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 VOUT 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 VOS 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

产品特点 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 VOUT Offset Control
Wide VCC Range of 2.7V to 6V
Low Operating Current: 500µA
Low Shutdown Current: <2µA
Available in a Low Profile (1mm) SOT-23 Package

参数

应用

802.11a, 802.11b, 802.11g, 802.15, 802.16
Multimode Mobile Phone Products
Optical Data Links
Wireless Data Modems
Wireless and Cable Infrastructure
RF Power Alarm
Envelope Detector

典型应用图

LTC5531 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC5531ESC6	SC70	6	E	$2.12
LTC5531ESC6#PBF	SC70	6	E	$2.12
LTC5531ESC6#TR	SC70	6	E	$2.12	$1.51
LTC5531ESC6#TRM	SC70	6	E	$2.12	$1.53
LTC5531ESC6#TRMPBF	SC70	6	E	$2.12	$1.53
LTC5531ESC6#TRPBF	SC70	6	E	$2.12	$1.51

LTC5531 数据手册及相关资料下载

数据手册 (英文) : LTC5531 - Precision 300MHz to 7GHz RF Detector with Shutdown and Offset Adjustment.PDF
应用指南 (英文) : AN91 - Low Cost Coupling Methods for RF Power Detectors Replace Directional Couplers.PDF
设计要点 (中文) : DN335 - 用于功率检波和控制的宽带 RF IC.PDF
可靠性数据 : R450 Reliability Data .PDF