AD608ARZ IF/RF Receivers by Analog Devices

Status: Production
Series: AD608
RoHS: Compliant
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The AD608 provides a low power, low distortion, low noise mixer as well as a complete, monolithic logarithmic/limiting amplifier that uses a successive-detection technique. In addition, the AD608 provides both a high speed received signal strength indicator (RSSI) output with 80 dB dynamic range and a hard-limited output. The RSSI output is from a two-pole postdemodulation low-pass filter and provides a loadable output voltage of 0.2 V to 1.8 V. The AD608 operates from a single 2.7 V to 5.5 V supply at a typical power level of 21 mW at 3 V.The RF and local oscillator (LO) bandwidths both exceed 500 MHz. In a typical IF application, the AD608 can accept the output of a 240 MHz surface acoustic wave (SAW) filter and down-convert it to a nominal 10.7 MHz IF with a conversion gain of 24 dB (ZIF = 165 Ω). The AD608 logarithmic/limiting amplifier section handles any IF from low frequency (LF) up to 30 MHz.The mixer is a doubly balanced gilbert-cell mixer and operates linearly for RF inputs spanning −95 dBm to −15 dBm. It has a nominal −5 dBm third-order intercept. An on-board LO preamplifier requires only −16 dBm of LO drive. The current output of the mixer drives a reverse-terminated, industry-standard 10.7 MHz, 330 Ω filter.The nominal logarithmic scaling is such that the output is +0.2 V for a sinusoidal input to the IF amplifier of −75 dBm and +1.8 V at an input of +5 dBm; over this range, the logarithmic conformance is typically ±1 dB. The logarithmic slope is proportional to the supply voltage. A feedback loop automatically nulls the input offset of the first stage down to the submicrovolt level.The AD608 limiter output provides a hard-limited signal output at 400 mV p-p. The voltage gain of the limiting amplifier to this output is more than 100 dB. Transition times are 11 ns and the phase is stable to within ±3° at 10.7 MHz for signals from −75 dBm to +5 dBm.The AD608 is enabled by a CMOS logic-level voltage input, with a response time of 200 ns. When disabled, the standby power is reduced to 300 μW within 400 ns.The AD608 is specified for the industrial temperature range of −25°C to +85°C for 2.7 V to 5.5 V supplies and −40°C to +85°C for 3.0 V to 5.5 V supplies. This device comes in a 16-lead plastic SOIC.

Prices starting from US$5.40


Distributor Starting From Stock
Logo for Richardson RFPD Richardson RFPD US$5.40
51
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Logo for Farnell Farnell US$5.46
38
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Logo for Newark Electronics Newark Electronics US$6.90
38
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Logo for element14 element14 US$5.53
38
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Logo for Analog Devices Analog Devices US$8.38
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Features

Mixer
15 dBm, 1 dB compression point
5 dBm IP3
24 dB conversion gain >500 MHz input bandwidth
Logarithmic/limiting amplifier
80 dB RSSI range
±3° phase stability over 80 dB range
Low power
21 mW at 3 V power consumption
CMOS-compatible power-down to 300 μW typical
200 ns enable/disable time

Alternative Descriptions

RF MIXER | Richardson RFPD
RF MIXER, 1 CHANNEL, 500MHZ, NSOIC-16 | Farnell
Rf Mixer, 1 Channel, 500Mhz, Nsoic-16 | Newark Electronics
IC, IF SUBSYSTEM | Analog Devices


Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD608ARZ?

Additional datasheets, footprints and schematics for AD608ARZ are listed on our Part Details page. You can also find images and similar parts to AD608ARZ on this page.

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What category does AD608ARZ fall under?

The AD608ARZ is listed under IF/RF Receivers.

Can I view similar or alternative parts?

You can view similar parts to AD608ARZ when available in the IF/RF Receivers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the AD608ARZ you can contact the distributor directly for product support, shipping queries etc.

Is the AD608ARZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for AD608ARZ have stock available?

Authorised distributors including Richardson RFPD, Farnell, Newark Electronics, element14 and Analog Devices have stock available or on a lead time for AD608ARZ.

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