Overview
The ADG918BCPZ-REEL7, produced by Analog Devices Inc., is a wideband RF switch that utilizes CMOS technology to offer high isolation and low insertion loss up to 1 GHz. This device is part of the ADG918 series, which includes both absorptive (ADG918) and reflective (ADG919) switch configurations. The ADG918 is specifically designed as an absorptive switch with 50 Ω terminated shunt legs, making it suitable for applications requiring high off-isolation and low insertion loss.
The ADG918BCPZ-REEL7 is packaged in an 8-lead MSOP or a tiny 3 mm × 3 mm LFCSP, making it ideal for space-constrained and high-frequency applications. It operates on a single power supply ranging from 1.65 V to 2.75 V and features CMOS/LVTTL compatible control logic, eliminating the need for external controlling circuitry.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Power Supply Voltage (VDD) | 1.65 | - | 2.75 | V |
| Insertion Loss at 1 GHz | - | 0.8 | - | dB |
| Off Isolation at 1 GHz | - | 43 | - | 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 |
| Quiescent Power Supply Current (IDD) | 0.1 | - | 1 | µA |
| Operating Temperature Range | -40 | - | 85 | °C |
Key Features
- Wideband switch with operation up to 4 GHz
- Absorptive switch configuration with 50 Ω terminated shunt legs (ADG918)
- High off-isolation (43 dB at 1 GHz) and low insertion loss (0.8 dB at 1 GHz)
- Single power supply operation from 1.65 V to 2.75 V
- CMOS/LVTTL compatible control logic
- Low power consumption (<1 µA)
- Compact packaging in 8-lead MSOP and 3 mm × 3 mm LFCSP
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 operating frequency range of the ADG918BCPZ-REEL7?
The ADG918BCPZ-REEL7 operates up to 1 GHz with high isolation and low insertion loss, and it maintains performance up to 4 GHz.
- What are the power supply requirements for the ADG918BCPZ-REEL7?
The device operates on a single power supply ranging from 1.65 V to 2.75 V.
- What is the difference between the ADG918 and ADG919?
The ADG918 is an absorptive switch with 50 Ω terminated shunt legs, while the ADG919 is a reflective switch.
- What are the typical switching times for the ADG918BCPZ-REEL7?
The on switching time (tON) is typically 6.6 ns to 10 ns, and the off switching time (tOFF) is typically 6.5 ns to 9.5 ns.
- What is the quiescent power supply current of the ADG918BCPZ-REEL7?
The quiescent power supply current (IDD) is less than 1 µA.
- What are the common applications of the ADG918BCPZ-REEL7?
Common applications include wireless communications, general-purpose RF switching, dual-band applications, high-speed filter selection, and antenna diversity switching.
- What is the operating temperature range of the ADG918BCPZ-REEL7?
The operating temperature range is from -40°C to +85°C.
- What types of packaging are available for the ADG918BCPZ-REEL7?
The device is available in 8-lead MSOP and 3 mm × 3 mm LFCSP packages.
- Is the ADG918BCPZ-REEL7 compatible with CMOS and LVTTL control logic?
Yes, the device is compatible with both CMOS and LVTTL control logic.
- What is the insertion loss and off-isolation of the ADG918BCPZ-REEL7 at 1 GHz?
The insertion loss is 0.8 dB, and the off-isolation is 43 dB at 1 GHz.
