Datasheet

SW-209 Datasheet – Matched GaAs SPST Switch ( PDF )

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Part Number: SW-209

Function: Matched GaAs SPST Switch DC – 3.0 GHz

Manufacturer: MACOM, Tyco Electronics

Pinouts:

SW-209 datasheet

Description

SW-209 is a matched GaAs SPST RF switch designed for high-frequency applications from DC up to 3.0GHz. It offers fast switching speed, low insertion loss, and extremely low DC power consumption, making it suitable for RF signal routing. This device is commonly used in communication systems, RF test equipment, and microwave switching applications.

Features

  • GaAs SPST (Single Pole Single Throw) RF switch
  • Wide frequency operation from DC to 3.0GHz
  • Fast switching speed of 6ns typical
  • Ultra-low DC power consumption
  • Compact package size (4.6mm square)
  • Matched design for improved RF performance
  • Suitable for high-frequency signal routing

Design Notes

  • Maintain controlled impedance (typically 50Ω) PCB traces for optimal RF performance
  • Minimize parasitic capacitance and inductance in layout to preserve high-frequency characteristics
  • Proper biasing of control voltage is critical for reliable switching operation
  • Use RF grounding techniques and via stitching to reduce signal loss and crosstalk
  • Thermal performance should be evaluated under high RF input power conditions

Typical Circuit Usage

  • RF signal switching and routing circuits
  • Transmit/receive path switching in communication systems
  • RF test and measurement equipment
  • Microwave signal control modules

Absolute Maximum Ratings (Tc = 25 °C)

Parameter Symbol Value Unit
Input Power (0.05GHz) PIN +27 dBm
Input Power (0.5–2.0GHz) PIN +34 dBm
Control Voltage VCTRL +5 / -8.5 V
Operating Temperature Topr -55 to 125 °C
Storage Temperature Tstg -65 to 150 °C

How to Choose This Part

  • Select for high-frequency switching applications up to 3GHz
  • Suitable when fast switching speed is required
  • Ideal for low-power control systems with minimal DC consumption
  • Ensure compatibility with required RF power levels and control voltages

Applications

  • Wireless communication systems
  • RF and microwave instrumentation
  • Radar and signal processing systems
  • Antenna switching networks

Alternative / Equivalent Products

  • HMC194
  • MASWSS0115
  • PE4259
  • ADG918 (lower frequency alternative)

Other data sheets are available within the file: SW209, SW-209B, SW-209G

SW-209 Datasheet PDF Download


SW-209 pdf

AD584 Datasheet PDF – Precision Voltage Reference

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Part Number: AD584

Function: 40V, 600mW, pin programmable precision voltage reference

Package: TO-99, DIP 8 Pin type

Manufacturer: Analog Devices

Image and Pinouts:

AD584 datasheet

 

Description

The AD584 is an8-terminal precision voltage reference offering pin programmable selection of four popular output voltages: 10.000 V, 7.500 V, 5.000 V and 2.500 V. Other output voltages, above, below, or between the four standard outputs, are available by the addition of external resistors.

The input voltage can vary between 4.5 V and 30 V. Laser wafer trimming (LWT) is used to adjust the pin programmable output levels and temperature coefficients, resulting in the most flexible high precision voltage reference available in monolithic form.

Features

1. Four programmable output voltages : 10.000 V, 7.500 V, 5.000 V, and 2.500 V

2. Laser-trimmed to high accuracies

3. No external components required

4. Trimmed temperature coefficient
(1) 15 ppm/°C maximum, 0°C to 70°C (AD584K)
(2) 15 ppm/°C maximum, −55°C to +125°C (AD584T)

5. Zero output strobe terminal provided

6. 2-terminal negative reference: capability (5 V and above)

7. Output sources or sinks current

8. Low quiescent current: 1.0 mA maximum

9. 10 mA current output capability

Design Notes

  • Laser trimming ensures high initial accuracy and long-term stability
  • Temperature coefficient must be considered in precision measurement systems
  • Output can be fine-tuned using external resistors for non-standard voltages
  • Strobe pin allows output disabling, useful in multiplexed systems
  • Low quiescent current makes it suitable for portable instrumentation
  • Proper PCB layout (guard rings, low-noise routing) is critical for maintaining precision

How to Choose This Part

  • Select when multiple precision reference voltages are required
  • Evaluate temperature range and stability requirements
  • Ensure supply voltage compatibility (≥ output voltage + margin)
  • Compare noise and drift performance with modern references
  • Consider newer low-noise references for ultra-high precision applications

Applications

  • Precision instrumentation
  • Industrial measurement systems
  • Laboratory calibration equipment
  • Data acquisition and control systems
  • Analog signal processing circuits

Alternative / Equivalent Products

  • REF02 – 5V precision reference
  • ADR01 – Low noise precision reference
  • LM4040 – Shunt voltage reference
  • LT1021 – Ultra precision reference
  • REF5050 – Modern precision reference IC

Other data sheets are available within the file: AD584J, AD584JH, AD584JN, AD584JNZ

AD584 Datasheet PDF Download

AD584 pdf