ADG728 CMOS, Low Voltage, 2 Wire, Serially Controlled Single 8 to 1 Matrix Switch
The ADG728 is a CMOS analog matrix switch with a serially controlled 2-wire interface. It is an 8-channel matrix switch. On resistance is closely matched between switches and very flat over the full signal range. This part can operate equally well as a multiplexer, demultiplexer or switch array and the input signal range extends to the supplies.
The ADG728 and ADG729 utilize a 2-wire serial interface that is compatible with the I2C™ interface standard. Both have two external address pins (A0 and A1). This allows the 2 LSBs of the 7-bit slave address to be set by the user. Four of each of the devices can be connected to the one bus. The ADG728 also has a RESET pin that should be tied high if not in use.
Each channel is controlled by one bit of an 8-bit word. This means that these devices may be used in a number of different configurations; all, any, or none of the channels may be on at any one time.
On power-up of the device, all switches will be in the OFF condition and the internal shift register will contain all zeros.
All channels exhibit break-before-make switching action preventing momentary shorting when switching channels.
The ADG728 and ADG729 are available in 16-lead TSSOP packages.
Product Highlights
2-Wire Serial Interface.
Single Supply Operation. The ADG728 and ADG729 are
fully specified and guaranteed with 3 V and 5 V supply rails.
Low On Resistance 2.5 Ω typical.
Any configuration of switches may be on at any one time.
Guaranteed Break-Before-Make Switching Action.
Small 16-Lead TSSOP Package.
Applications
Data Acquisition Systems
Communications Systems
Relay Placement
Audio and Video Switching
Automatic Test Equipment
Each channel is controlled by one bit of an 8-bit word. This means that these devices may be used in a number of different configurations; all, any, or none of the channels may be on at any one time.
On power-up of the device, all switches will be in the OFF condition and the internal shift register will contain all zeros.
All channels exhibit break-before-make switching action preventing momentary shorting when switching channels.
The ADG728 and ADG729 are available in 16-lead TSSOP packages.
Applications
- Data Acquisition Systems
- Communications Systems
- Relay Placement
- Audio and Video Switching
- Automatic Test Equipment
Features and Benefits- 2-Wire Serial Interface
- 2.7 V to 5.5 V Single Supply
- 2.5 Ω On Resistance
- 0.75 Ω On-Resistance Flatness
- 100 pA Leakage Currents
- Single 8-to-1 Matrix Switch
- Power-On Reset
- Small 16-Lead TSSOP Package
- Qualified for Automotive Applications
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Data Sheets
Application Notes
User Guides
Order Information
Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
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ADG728BRU Last Time Buy | 16 ld TSSOP | OTH 96 | -40 to 85C | 0 | 0 | N |
ADG728BRUZ Production | 16 ld TSSOP | OTH 96 | -40 to 85C | 2.33 | 1.9 | Y |
ADG728BRUZ-REEL7 Production | 16 ld TSSOP | REEL 1000 | -40 to 85C | 0 | 1.9 | Y |
ADG728WBRUZ-REEL7 Production | 16 ld TSSOP | REEL 1000 | -40 to 85C | 0 | 2.18 | Y |
Evaluation Boards
Part Number | Description | Price | RoHS |
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EVAL-16TSSOPEBZ | Evaluation Board | 99 | Y |
Reference Materials