The ADG1204 is a complementary metal-oxide semiconductor (CMOS) analog multiplexer, comprising four single channels designed on an iCMOS (industrial CMOS) process. iCMOS® is a modular manufacturing process that combines high voltage CMOS and bipolar technologies. It enables the development of a wide range of high performance analog ICs capable of 33 V operation in a footprint that no previous generation of high voltage devices has been able to achieve. Unlike analog ICs using conventional CMOS processes, iCMOS components can tolerate high supply voltages while providing increased performance, dramatically lower power consumption, and reduced package size.
The ultralow capacitance and charge injection of this multiplexer makes it an ideal solution for data acquisition and sample-andhold applications, where low glitch and fast settling are required. Fast switching speed coupled with high signal bandwidth makes the device suitable for video signal switching. iCMOS construction ensures ultralow power dissipation, making the device ideally suited for portable and battery-powered instruments.
The ADG1204 switches one of four inputs to a common output, D, as determined by the 3-bit binary address lines: A0, A1, and EN. Logic 0 on the EN pin disables the device. Each switch conducts equally well in both directions when on and has an input signal range that extends to the supplies. In the off condition, signal levels up to the supplies are blocked. All switches exhibit break-before-make switching action.
- 1. 1.5 pF off capacitance (±15 V supply).
- <1 pC charge injection.
- 3 V logic-compatible digital inputs: VIH = 2.0 V, VIL = 0.8 V.
- No VL logic power supply required.
- Ultralow power dissipation: <0.03 μW.
- 14-lead TSSOP and 12-lead, 3 mm × 3 mm LFCSP packages.
- Automatic test equipment
- Data acquisition systems
- Battery-powered systems
- Sample-and-hold systems
- Audio signal routing
- Video signal routing
- Communication systems
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.
A 14-lead TSSOP device can be clamped or soldered to the center of the evaluation board. Each pin of the device that the eval board evaluates has a corresponding link from K1 to K14 that can be set to either VDD or GND. A wire screw terminal supplies VDD and GND. SMB connectors on the board allow additional external signals to be supplied to the device. In addition, there is space available at the top of the board for prototyping.
For full details, see the corresponding product data sheet, which must be used in conjunction with this user guide when using the evaluation board.
iCMOS Technology Enabling the +/-10V World
Analog Devices' industrial CMOS (iCMOS™) manufacturing process technology combines high voltage silicon with...
Product Selection Guide
Switches and Multiplexers Product Selection Guide
Data-acquisition system uses fault protection
By Catherine Redmond, Analog Devices, Inc. (EDN, 4/15/2004)
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.
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