Overview
Features and Benefits
- 1.8 V to 5.5 V Single Supply
- 5 Ω (maximum) on resistance
- 0.75 Ω (typical) on resistance flatness
- Automotive temperature range: −40°C to +125°C
- –3 dB bandwidth > 200 MHz
- Rail-to-rail operation
- 6-lead SC70 package
- Fast switching times
tON = 12 ns
tOFF = 6 ns - Typical power consumption (< 0.01 μW)
- TTL/CMOS compatible
Product Details
The ADG749 is a monolithic CMOS SPDT switch. This switch is designed on a submicron process that provides low power dissipation yet gives high switching speed, low on resistance, and low leakage currents
The ADG749 can operate from a single-supply range of 1.8 V to 5.5 V, making it ideal for use in battery-powered instruments and with the new generation of DACs and ADCs from Analog Devices, Inc.
Each switch of the ADG749 conducts equally well in both directions when on. The ADG749 exhibits break-before-make switching action.
Because of the advanced submicron process, −3 dB bandwidths of greater than 200 MHz can be achieved.
The ADG749 is available in a 6-lead SC70 package.
PRODUCT HIGHLIGHTS
- 1.8 V to 5.5 V Single-Supply Operation. The ADG749 offers high performance, including low on resistance and fast switching times, and is fully specified and guaranteed with 3 V and 5 V supply rails.
- Very Low RON (5 Ω Maximum at 5 V and 10 Ω Maximum at 3 V). At 1.8 V operation, RON is typically 40 Ω over the temperature range.
- Automotive Temperature Range: −40°C to +125°C.
- On Resistance Flatness (RFLAT(ON)) (0.75 Ω typical).
- −3 dB Bandwidth > 200 MHz.
- Low Power Dissipation. CMOS construction ensures low power dissipation.
- Fast tON/tOFF.
- Tiny, 6-lead SC70 Package.
APPLICATIONS
- Battery-powered systems
- Communication systems
- Sample-and-hold systems
- Audio signal routing
- Video switching
- Mechanical reed relay replacement
Product Categories
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)
Documentation & Resources
-
AN-282: Fundamentals of Sampled Data Systems2/14/2015
-
AN-355: Behind the Switch Symbol12/6/2002
Tools & Simulations
LTspice
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:
ADG749
SPICE Model
CIR
ADG749 SPICE Macro Model
4.01 K
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADG749BKSZ-REEL | Material Declaration | Reliability Data | 6-Lead SC70 | |
| ADG749BKSZ-REEL7 | Material Declaration | Reliability Data | 6-Lead SC70 | |
| Wafer Fabrication Data |
Support & Discussions
ADG749 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button 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.
Evaluation Boards
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.