Описание
The DG1408 is a precision analog multiplexer comprising eight single-ended channels. Built on a new CMOS process, the Vishay Siliconix DG1408 offer low on-resistance of 3.2 O. The low and flat resistance over the full signal range provides excellent linearity and low signal distortion. The new CMOS platform also ensures ultra low power dissipation, minimized parasitic capacitance, and low charge injection.The DG1408 can operate from either a single 4.5 V to 24 V power supply, or from dual ± 4.5 V to ± 15 V power supplies. The DG1408 connects one of eight inputs to a common output as determined by a 3-bit binary address (A0, A1, A2). Break-before-make switching action protects against momentary crosstalk between adjacent channels. The part does not require a VL logic supply, while all digital inputs have 0.8 V and 2 V logic thresholds to ensure low-voltage TTL / CMOS compatibility. Together with the compact package, these make the part a great fit for battery operated systems.
- 35 V supply max. rating
- 3.2 O typical and 4.7 O max. on-resistance at 25 °C
- 0.5 O on-resistance flatness
- Channel to channel on-resistance match: 0.2 O
- Up to 250 mA continuous current
- Supports single and dual supply operation
- Fully specified at ± 15 V, +12 V, and ± 5 V
- Integrated VL supply
- Low voltage logic compatible inputs, VIH = 2 V, VIL = 0.8 V
- BBM (break-before-make switching)
- Low parasitic capacitance: DG1408, CS(off) = 14 pF, CD(on) = 123 pF
- Rail to rail signal handling
- QFN16, 4 mm × 4 mm packages
