Overview
The AD608ARZ-RL is a low power mixer/limiter/RSSI (Received Signal Strength Indicator) 3 V receiver IF subsystem produced by Analog Devices Inc. This integrated circuit is designed to provide a low power, low distortion, and low noise solution for various wireless communication systems. It includes a doubly balanced Gilbert-cell mixer, a logarithmic/limiting amplifier, and a high-speed RSSI output. The device operates from a single 2.7 V to 5.5 V supply and is suitable for applications in PHS, GSM, TDMA, FM, and PM receivers, as well as battery-powered instrumentation and base station RSSI measurements.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V |
| Power Consumption | Typical 21 mW at 3 V |
| RF and LO Bandwidth | Exceed 500 MHz |
| Mixer Gain | 24 dB |
| Limiter Gain | 110 dB |
| RSSI Dynamic Range | 80 dB |
| IF Input Range | −75 dBm to +15 dBm |
| LO Input Drive | −16 dBm |
| Package Type | 16-lead plastic SOIC |
| Operating Temperature Range | −25°C to +85°C (2.7 V to 5.5 V), −40°C to +85°C (3.0 V to 5.5 V) |
Key Features
- Low power consumption with typical standby power of 300 μW
- CMOS-compatible power-down with 200 ns enable/disable time
- High-speed RSSI output with 80 dB dynamic range and loadable output voltage of 0.2 V to 1.8 V
- Hard-limited output with voltage gain of more than 100 dB
- Logarithmic/limiting amplifier with ±1 dB accuracy over a range of −75 dBm to +5 dBm
- Doubly balanced Gilbert-cell mixer with linear operation for RF inputs from −95 dBm to −15 dBm
Applications
- PHS, GSM, TDMA, FM, and PM receivers
- Battery-powered instrumentation
- Base station RSSI measurements
Q & A
- What is the supply voltage range of the AD608ARZ-RL?
The supply voltage range is 2.7 V to 5.5 V. - What is the typical power consumption of the AD608ARZ-RL at 3 V?
The typical power consumption is 21 mW at 3 V. - What is the bandwidth of the RF and LO inputs?
The RF and LO bandwidths both exceed 500 MHz. - What is the gain of the mixer and limiter sections?
The mixer gain is 24 dB, and the limiter gain is 110 dB. - What is the dynamic range of the RSSI output?
The RSSI output has a dynamic range of 80 dB. - What is the input range for the IF input?
The IF input range is from −75 dBm to +15 dBm. - What is the required LO input drive?
The LO input drive is −16 dBm. - In what package type is the AD608ARZ-RL available?
The AD608ARZ-RL is available in a 16-lead plastic SOIC package. - What is the operating temperature range of the AD608ARZ-RL?
The operating temperature range is −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. - What is the standby power consumption when the device is disabled?
The standby power consumption is reduced to 300 μW within 400 ns when the device is disabled.
