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250 MHz, 44 dB Demodulating Logarithmic Amplifier
Analog Devices Inc.
Description
The AD641 is a 250 MHz, demodulating logarithmic amplifier with an accuracy of ±2.0 dB and 44 dB dynamic range. The AD641 uses a successive detection architecture to provide an output current ...
Features
Logarithmic Amplifier Performance Usable to 250 MHz 44 dB Dynamic Range ±2.0 dB Log Conformance 37.5 mV/dB Voltage Output Stable Slope and Intercepts 2.0 nV/vHz Input Noise Voltage 50 ?V Input Offset Voltage Low Power ±5 V Supply Operation 9 mA (+Vs), 35 mA (-Vs) Quiescent Current Onboard Resistors Onboard 10x Attenuator Dual Polarity Current Outputs Direct Coupled Differential Signal Path
Related Datasheets
| Part Number | Description | Category |
| • AD606 | 50 MHz, 80 dB Demodulating Logarithmic Amplifier with Limiter Output | Actives - Sensors and Transducers |
| • AD641 | 250 MHz, 44 dB Demodulating Logarithmic Amplifier | Actives - Sensors and Transducers |
| • AD8306 | 5 - 400 MHz, 100 dB High Precision Limiting - Logarithmic Amplifier | Actives - Sensors and Transducers |
| • AD8309 | 5 - 500 MHz, 100 dB Demodulating Logarithmic Amplifier with Limiter Output | Actives - Sensors and Transducers |
| • AD8311 | 50 dB GSM PA Controller | Actives - Sensors and Transducers |
| • AD8312 | 50 MHz to 3.5 GHz, 45 dB RF Log Detector | Actives - Sensors and Transducers |
| • AD8313 | 0.1 - 2.5 GHz, 70 dB Logarithmic Detector / Controller | Actives - Sensors and Transducers |
| • AD8314 | 100 MHz to 2.7 GHz, 45 dB RF Detector/Controller | Actives - Sensors and Transducers |
| • AD8315 | 50 dB GSM PA Controller | Actives - Sensors and Transducers |
| • AD8316 | Dual Output GSM PA Controller | Actives - Sensors and Transducers |
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