LT5537 - Wide Dynamic Range RF/IF Log Detector
Datasheet 
DocumentationDatasheet
Reliability Data
Press Release
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Features
- Low Frequency to 1000MHz Operation
- 83dB Dynamic Range with ±1dB Nonlinearity at 200MHz
- Sensitivity –76dBm or Better at 200MHz
- Log-Linear Transfer Slope of 20mV/dB
- Supply Voltage Range: 2.7V to 5.25V
- Supply Current: 13.5mA at 3V
- Tiny 8-Lead (3mm × 2mm) DFN Package
Typical Application
Description
The LT5537 is a wide dynamic range RF/IF detector, operational from below 10MHz to 1000MHz. The lower limit of the operating frequency range can be extended to near DC by the use of an external capacitor. The input dynamic range at 200MHz with ±3dB nonlinearity is 90dB (from –76dBm to 14dBm, single-ended 50Ω input). The detector output voltage slope is nominally 20mV/dB, and the typical temperature coefficient is 0.01dB/°C at 200MHz.3x2 DFN-8
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LT5537EDDB#PBF | DFN | 8 | E | $4.34 | |
| LT5537EDDB#TRMPBF | DFN | 8 | E | $4.34 | $3.05 |
| LT5537EDDB#TRPBF | DFN | 8 | E | $4.34 | $3.03 |
| LT5537EDDB | DFN | 8 | E | $8.68 | |
| LT5537EDDB#TR | DFN | 8 | E | $8.68 | $6.06 |
| LT5537EDDB#TRM | DFN | 8 | E | $8.68 | $6.10 |
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 |
|---|---|---|---|
| DC747A | LT5537EDDB | 90dB Dynamic Range Log RF/IF Detector | $100.00 |