Product Highlights 3-Wire Serial Interface. Single Supply Operation. The ADG738 is 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 or off at any one time. Guaranteed Break-Before-Make Switching Action. Small 16-lead TSSOP Package.
The ADG738 is a CMOS analog matrix switch with a serially-controlled 3-wire interface. The ADG738 is an 8-channel matrix switch. On resistance is closely matched between switches and very flat over the full signal range.
The ADG738 utilize a 3-wire serial interface that is compatible with SPI™, QSPI™, MICROWIRE®, and some DSP interface standards. The output of the input shift register, DOUT, enables a number of these parts to be daisy-chained. On power-up, the internal input shift register contains all zeros and all switches are in the off state.
Each switch conducts equally well in both directions when on, making these parts suitable for both multiplexing and demulti-plexing applications. As each switch is turned on or off by a separate bit, these parts can also be configured as a type of switch array, where any, all, or none of the eight switches may be closed at any time. The input signal range extends to the supply rails.
All channels exhibit break-before-make switching action, preventing momentary shorting when switching channels.
The ADG738 is available in 16-lead TSSOP packages.
Features and Benefits
| Switches & MultiplexersReference Designs |
| Document | note |
| ADG738/ADG739: CMOS, Low Voltage, 3-Wire Serially-Controlled, Matrix Switches Data Sheet (Rev. A) | PDF 157 kB |
| Document | note |
| AN-1024: How to Calculate the Settling Time and Sampling Rate of a Multiplexer (Rev. 0) | PDF 210 kB |
| Document | note |
| UG-945: Evaluation Board for 16-Lead TSSOP Devices in the Switches and Multiplexers Portfolio (Rev. 0) | PDF 291.91 K |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| ADG738BRU Last Time Buy | 16 ld TSSOP | OTH 96 | -40 to 85C | 0 | 0 | N |
| ADG738BRUZ Production | 16 ld TSSOP | OTH 96 | -40 to 85C | 1.97 | 1.62 | Y |
| ADG738BRUZ-REEL Production | 16 ld TSSOP | REEL 2500 | -40 to 85C | 0 | 1.62 | Y |
| ADG738BRUZ-REEL7 Production | 16 ld TSSOP | REEL 1000 | -40 to 85C | 0 | 1.62 | Y |
| ADG738WBRUZ-REEL Production | 16 ld TSSOP | REEL 2500 | -40 to 105C | 0 | 1.86 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-16TSSOPEBZ | Evaluation Board | 99 | Y |
