Overview
The LTC5582IDD, produced by Linear Technology (now part of Analog Devices), is a high-performance RF power detector designed for precise measurement of RF signals across a wide frequency range. This component is capable of accurate power measurement of AC signals with a dynamic range of 57 dB, from –57 dBm to 2 dBm, making it suitable for various RF standards including LTE, WiMAX, CDMA, and W-CDMA.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Frequency Range | 40 | 10000 | MHz | ||
| Input Impedance (Differential) | fRF = 450MHz | 400//0.5 Ω//pF | |||
| RF Input Power Range (CW, Single-Ended, 50Ω) | –57 | 2 | dBm | ||
| Linear Dynamic Range | 59 | dB | |||
| Linearity Error | ±1 | dB | |||
| Output Slope | 29.5 | mV/dB | |||
| Logarithmic Intercept | –86.2 | dBm | |||
| Supply Current (ISupply) | VCC = 3.3V, EN = 3.3V | 41.6 | mA | ||
| Operating Temperature Range | –40 | 125 | °C |
Key Features
- Wide frequency range: 40 MHz to 10 GHz
- High dynamic range: 57 dB, from –57 dBm to 2 dBm
- Accurate power measurement independent of the crest factor of the input signal waveforms
- Differential RF inputs internally biased at 1.585V with differential impedance of 400Ω
- Single-ended input configuration possible with appropriate termination
- Stable output over a wide temperature range from –40°C to 125°C
- Low linearity error of ±1 dB
Applications
The LTC5582IDD is suitable for a variety of RF and IF applications, including:
- Precision RF power measurement and level control
- RFID systems
- Wireless communication standards such as LTE, WiMAX, CDMA, and W-CDMA
- Base stations and cellular infrastructure
- Test and measurement equipment
Q & A
- What is the frequency range of the LTC5582IDD?
The LTC5582IDD operates over a frequency range of 40 MHz to 10 GHz. - What is the dynamic range of the LTC5582IDD?
The dynamic range is 57 dB, from –57 dBm to 2 dBm. - How accurate is the power measurement of the LTC5582IDD?
The power measurement is accurate with a linearity error of ±1 dB. - Can the LTC5582IDD be used in single-ended configurations?
Yes, the LTC5582IDD can be driven in a single-ended configuration with appropriate termination. - What is the operating temperature range of the LTC5582IDD?
The operating temperature range is from –40°C to 125°C. - What is the supply current of the LTC5582IDD?
The supply current (ISupply) is typically 41.6 mA at VCC = 3.3V and EN = 3.3V. - What are some common applications of the LTC5582IDD?
Common applications include precision RF power measurement, RFID systems, and wireless communication standards such as LTE, WiMAX, CDMA, and W-CDMA. - How does the LTC5582IDD handle different crest factors of input signals?
The LTC5582IDD measures power accurately independent of the crest factor of the input signal waveforms. - What is the logarithmic intercept of the LTC5582IDD?
The logarithmic intercept is –86.2 dBm. - Can the LTC5582IDD be used in automotive applications?
For specific automotive reliability reports, contact the local Analog Devices account representative.
