Overview
Features and Benefits
- Frequency Range: 40MHz to 3.8GHz
- 75dB Log Linear Dynamic Range
- Exceptional Accuracy over Temperature
- Linear DC Output vs. Input Power in dBm
- –72dBm Detection Sensitivity
- Single-ended RF Input
- Low Supply Current: 29mA
- Supply Voltage: 3V to 5.25V
- 8-lead DFN 3mm × 3mm package
Product Details
The LT5538 is a 40MHz to 3800MHz monolithic logarithmic RF power detector, capable of measuring RF signals over a wide dynamic range, from –75dBm to 10dBm. The RF signal in an equivalent decibel-scaled value is precisely converted into DC voltage on a linear scale. The wide linear dynamic range is achieved by measuring the RF signal using cascaded RF limiters and RF detectors. Their outputs are summed to generate an accurate linear DC voltage proportional to the input RF signal in dBm. The LT5538 delivers superior temperature stable output (within ±1dB over full temperature range) from 40MHz to 3.8GHz. The output is buffered with a low impedance driver.
Applications
- Received Signal Strength Indication (RSSI)
- RF Power Measurement and Control
- RF/IF Power Detection
- Receiver RF/IF Gain Control
- Envelope Detection
- ASK Receiver
Product Categories
Markets and Technologies
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
-
R409 Reliability Data3/23/2018
-
DC1120A - Demo Manual2/17/2016
Tools & Simulations
S-Parameter
UNDEFINED
LTC5538 S-Parameters
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Product Recommendations
LT5538 Companion Parts
Recommended Related Parts
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| LT5538IDD#PBF | Material Declaration | Reliability Data | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | |
| LT5538IDD#TRPBF | Material Declaration | Reliability Data | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | |
| Wafer Fabrication Data | R409 Reliability Data |
Support & Discussions
LT5538 Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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 Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.