Overview
The ADG918BRM-REEL7, produced by Analog Devices Inc., is a Single-Pole Double-Throw (SPDT) RF switch designed for high-frequency applications. This device utilizes a CMOS process to provide high isolation and low insertion loss up to 1 GHz. The ADG918 is an absorptive (matched) switch with 50 Ω terminated shunt legs, making it suitable for a variety of RF switching applications. It features on-board CMOS and LVTTL compatible control logic, eliminating the need for external controlling circuitry. The low power consumption of less than 1 µA makes it ideal for wireless and general-purpose high-frequency switching applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Power Supply Voltage (VDD) | 1.65 | 2.5 | 2.75 | V |
| Quiescent Power Supply Current (IDD) | 0.1 | 1 | µA | |
| Isolation (RFC to RF1/RF2) at 100 MHz | 55 | 60 | dB | |
| Isolation (RFC to RF1/RF2) at 500 MHz | 43 | 47 | dB | |
| Isolation (RFC to RF1/RF2) at 1000 MHz | 34 | 37 | dB | |
| Insertion Loss at 1000 MHz | 0.8 | dB | ||
| On Switching Time (tON) | 6.6 | 10 | ns | |
| Off Switching Time (tOFF) | 6.5 | 9.5 | ns | |
| Rise Time (tRISE) | 6.1 | 9 | ns | |
| Fall Time (tFALL) | 6.1 | 9 | ns | |
| Operating Temperature Range | −40 | +85 | °C |
Key Features
- Wideband switch operation up to 4 GHz
- High isolation (up to 43 dB at 1 GHz)
- Low insertion loss (0.8 dB at 1 GHz)
- Single 1.65 V to 2.75 V power supply
- CMOS and LVTTL compatible control logic
- Low power consumption (<1 µA)
- Available in 8-lead MSOP and 3 mm × 3 mm LFCSP packages
Applications
- Wireless communications
- General-purpose RF switching
- Dual-band applications
- High-speed filter selection
- Digital transceiver front-end switch
- IF switching
- Tuner modules
- Antenna diversity switching
Q & A
- What is the ADG918BRM-REEL7?
The ADG918BRM-REEL7 is a Single-Pole Double-Throw (SPDT) RF switch produced by Analog Devices Inc., designed for high-frequency applications.
- What is the operating frequency range of the ADG918BRM-REEL7?
The device operates up to 4 GHz with high isolation and low insertion loss up to 1 GHz.
- What are the power supply requirements for the ADG918BRM-REEL7?
The device can be operated from a single 1.65 V to 2.75 V power supply.
- What are the typical switching times for the ADG918BRM-REEL7?
The on switching time (tON) is 6.6 to 10 ns, and the off switching time (tOFF) is 6.5 to 9.5 ns.
- What are the package options for the ADG918BRM-REEL7?
The device is available in 8-lead MSOP and 3 mm × 3 mm LFCSP packages.
- What is the operating temperature range for the ADG918BRM-REEL7?
The operating temperature range is −40°C to +85°C.
- What are some common applications for the ADG918BRM-REEL7?
Common applications include wireless communications, general-purpose RF switching, dual-band applications, high-speed filter selection, and antenna diversity switching.
- Is the ADG918BRM-REEL7 compatible with CMOS and LVTTL logic?
Yes, the device has CMOS and LVTTL compatible control logic.
- What is the typical power consumption of the ADG918BRM-REEL7?
The typical power consumption is less than 1 µA.
- What is the isolation performance of the ADG918BRM-REEL7 at 1 GHz?
The isolation performance is up to 43 dB at 1 GHz.
- Is the ADG918BRM-REEL7 RoHS compliant?
Yes, the device is available in RoHS compliant versions.
