Features and Benefits
- 1.8 V to 5.5 V Single Supply
- 2O (Typ) On Resistance
- Low On-Resistance Flatness
- -3 dB Bandwidth >200 MHz
- Rail-to-Rail Operation
- Tiny 6-Lead SOT23 and 8-Lead µSOIC packages
- Fast Switching Times
tON 18 ns
tOFF 12 ns
- Typical Power Consumption (<0.01 µW)
- TTL/CMOS Compatible
The ADG741 / ADG742 are monolithic CMOS SPST switches. These switches are designed using an advanced submicron process that provides low power dissipation, yet offers high switching speed, low on resistance, and low leakage currents. In addition, −3 dB bandwidths of greater than 200 MHz can be achieved.
The ADG741 / ADG742 can operate from a single 1.8 V to 5.5 V supply, making them ideal for use in battery-powered instruments and with Analog Devices’ new generation of DACs and ADCs.
As shown in the Functional Block Diagrams, with a logic input of 1 the switch of the ADG741 is closed, while that of the ADG742 is open. Each switch conducts equally well in both directions when on.
The ADG741 / ADG742 are available in 6-lead and 5-lead SC70 packages.
- 1.8 V to 5.5 V Single-Supply Operation. The ADG741 / ADG742 offer high performance, including low on resistance and fast switching times. They are fully specified and guaranteed with 3 V and 5 V supply rails.
- Very Low RON (3 Ω max at 5 V, 5 Ω max at 3 V). At 1.8 V operation, RON is typically 40 Ω over the temperature range.
- On Resistance Flatness RFLAT(ON) (1 Ω max).
- −3 dB Bandwidth >200 MHz.
- Low Power Dissipation. CMOS construction ensures low power dissipation.
- Fast tON/tOFF.
- Tiny 6-Lead and 5-Lead SC70 Packages.
- Battery-powered systems
- Communication systems
- Sample-and-hold systems
- Audio signal routing
- Video switching
- Mechanical reed relay replacement
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The EVAL-5SC70EBZ evaluation board evaluates 5-lead SC70 devices in the Switches and Multiplexers Portfolio that are purchased separately. A clamp is supplied with the EVAL-5SC70EBZ to secure a 5-lead SC70 device to the evaluation board without the need for soldering, making the evaluation board reusable for multiple devices.
Figure 1 shows the EVAL-5SC70EBZ evaluation board. A 5-lead SC70 device can be clamped or soldered to the center of the evaluation board. Each pin of the device has a corresponding link from K1 to K5 that can be set to either VDD or GND. A wire screw terminal supplies VDD and GND. SubMiniature Version B (SMB) connectors on the evaluation board allow additional external signals to be supplied to the device. In addition, there is space available at the top of the evaluation board for prototyping.
Full specifications of the device under test (DUT) are available in the corresponding product data sheet, which should be consulted in conjunction with this user guide when using the evaluation board.
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
Product Selection Guide (1)
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.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.