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 that is logarithmically proportional to its input voltage. The output current can be converted to a voltage using one of several on-chip resistors to select the slope..
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/√Hz 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 10؋ Attenuator Dual Polarity Current Outputs Direct Coupled Differential Signal Path
APPLICATIONS IF/RF Signal Processing Received Signal Strength Indicator (RSSI) High Speed Signal Compression High Speed Spectrum Analyzer ECM/Radar
PRODUCT DESCRIPTION The AD641 is a 250 MHz, demodulating lo.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | AD640 |
Analog Devices |
DC-Coupled Demodulating 120 MHz Logarithmic Amplifier | |
2 | AD6402 |
Analog Devices |
IF Transceiver Subsystem | |
3 | AD6411 |
Analog Devices |
DECT RF Transceiver | |
4 | AD642 |
Analog Devices |
Precision/ Low Cost Dual BiFET Op Amp | |
5 | AD6426 |
Analog Devices |
Enhanced GSM Processor | |
6 | AD6432 |
Analog Devices |
GSM 3 V Transceiver IF Subsystem | |
7 | AD6439 |
Analog Devices |
Discrete Multitone (DMT) Coprocessor | |
8 | AD644 |
Analog Devices |
Dual High Speed/ Implanted BiFET Op Amp | |
9 | AD6440 |
Analog Devices |
Analog Front-End | |
10 | AD645 |
Analog Devices |
Low Noise/ Low Drift FET Op Amp | |
11 | AD6458 |
Analog Devices |
GSM 3 V Receiver IF Subsystem | |
12 | AD6459 |
Analog Devices |
GSM 3 V Receiver IF Subsystem |