ADGM3121

PRE-RELEASE

3mm × 3mm DPDT MEMS Switch, 0Hz/DC to 24GHz

Data Sheet (Rev. 0) Product Selection Table

Part Models: 3
1ku List Price: price unavailable

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Overview

−3dB frequency bandwidth:
- RF1A and RF1B: 24GHz
- RF2A and RF2B: 22GHz
High bit rate capability up to 64Gbps
RF performance characteristics
- Channel RF1A and Channel RF1B:
  - Insertion loss: 0.5dB (typical) at 6GHz
  - Return loss: 24dB (typical) at 6GHz
  - Isolation: 24dB (typical) at 6GHz
- Channel RF2A and Channel RF2B:
  - Insertion loss: 0.4dB (typical) at 6GHz
  - Return loss: 29dB (typical) at 6GHz
  - Isolation: 26dB (typical) at 6GHz

High input IIP3: 70dBm (typical)
High RF power handling: 33dBm (maximum)
On resistance: 1.9Ω (typical)
High DC current handling: 200mA
High switch cycle count: 100 million cycles (minimum at +85°C)
Fast switching time: 200μs TON (maximum)
Integrated 3.3V driver for simple control with parallel interface and SPI
Space saving integrated passive shunt resistors
Small 3mm × 3mm × 1.5mm, 24-lead land grid array package
Temperature range: −40°C to +85°C

The ADGM3121 is a wideband, double-pole, double-throw (DPDT) switch, fabricated using Analog Devices, Inc., microelectromechanical system (MEMS) switch technology. This technology enables a small form factor, wide RF bandwidth, highly linear, low insertion loss switch that is operational down to 0Hz/DC, making it an ideal solution for a wide range of RF and precision equipment switching needs.

An integrated driver chip generates a high voltage to electrostatically actuate switch that can be controlled by a parallel interface or a serial peripheral interface (SPI). All switches are independently controllable.

The device is packaged in a 24-lead, 3mm × 3mm × 1.5mm land grid array package. To ensure optimum operation of the ADGM3121 refer to the Critical Operational Requirements section.

The on-resistance (RON) performance of the ADGM3121 is affected by part-to-part variation, channel-to-channel variation, cycle actuations, settling time post turn on, bias voltage, and temperature changes.

APPLICATIONS

ATE load and probe boards
DC with high speed loopback testing
Supports digital standards: high speed serialization/deserialization, PCIe Gen4/Gen5/Gen6, USB 4, and PAM 4
Relay replacements
Reconfigurable filters and attenuators
Military and microwave radios
Cellular infrastructure: 5G mmWave

Part Models: 3
1ku List Price: price unavailable

Documentation

Data Sheet 2

EVAL-ADGM3121 User Guide: Evaluating the ADGM3121 3mm × 3mm DPDT MEMS Switch, 0Hz/DC to 24GHz (Rev.0) 12/12/2025

ADGM3121: 3mm × 3mm DPDT MEMS Switch, 0Hz/DC to 24GHz Data Sheet (Rev.0) 12/12/2025

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADGM3121BCCZ	24-Terminal LGA (3.0 mm x 3.0 mm x 01.50 mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADGM3121BCCZ-R2	24-Terminal LGA (3.0 mm x 3.0 mm x 01.50 mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADGM3121BCCZ-RL7	24-Terminal LGA (3.0 mm x 3.0 mm x 01.50 mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Software Resources

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Tools & Simulations

S-Parameter 2

IBIS Model 1

ADGM3121 - IBIS Model

Evaluation Kits

Evaluating the ADGM3121 3mm × 3mm DPDT MEMS Switch, 0Hz/DC to 24GHz

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Features and Benefits

Single-supply voltage: 3.3V
Wide frequency range: DC to 24GHz
2.92mm connectors for RF signals
Parallel interface and SPI
On-board calibration through transmission line for analyzer calibration

Product Details

This user guide describes the EVAL-ADGM3121SDZ for the ADGM3121, a dual-chip, RF switching solution containing a double- pole, double-throw (DPDT), microelectromechanical systems (MEMS) switch, and a control chip co-packaged in a compact, 3.00mm × 3.00mm × 1.50mm, LGA package.

The DPDT switch uses Analog Devices, Inc., MEMS switch technology, providing optimum performance in terms of bandwidth, power handling capability, and linearity for RF applications. The control chip generates the high-voltage signals needed for the MEMS switch and allows the user to control its operation through a simple and flexible complementary metal-oxide semiconductor (CMOS)/low voltage transistor to transistor logic (LVTTL)-compliant parallel-interface as well as through a serial-peripheral interface (SPI). It is possible to daisy-chain multiple ADGM3121 devices together to enable the configuration of multiple devices with a minimal number of digital lines.

For SPI, the EVAL-ADGM3121SDZ connects to the USB port of a PC through the system demonstration platform (SDP) board. The EVAL-SDP-CB1Z board (SDP-B controller board) is available to order at the Analog Devices website.

The ADGM3121 comes fitted with connectors for RF and control signals as well as links to control the operation of the switch and evaluate its performance.

For full details on the ADGM3121, see the ADGM3121 data sheet, which must be consulted in conjunction with this user guide when using the EVAL-ADGM3121SDZ.

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