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.

  • 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
LTC5531 Typical Application
LTC5531 Typical Application
  • 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
LTC5531 Package Drawing
Order Information 订购型号
器件型号封装温度价格 (以 1 ~ 99 片为批量)价格 (以 1000 片为批量) *
DC710ALTC5531ES6 | RF Power Detector, 300MHz to 7000MHz$100.00
CAD 符号
LTC5531 - Precision 300MHz to 7GHz RF Detector with Shutdown and Offset Adjustment
R450 Reliability Data
LTC5531 Footprints and Symbols