FEATURES
• 35 V supply max. rating
• 3.2 Ω typical and 4.7 Ω max. on-resistance at
25 °C
• 0.5 Ω on-resistance flatness
• Channel to channel on-resistance match: 0.2 Ω
• 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
DG1409, CS(off) = 14 pF, CD(on) = 81 pF
• Rail to rail signal handling
• QFN16, 4 mm × 4 mm packages
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912

BENEFITS
• Low insertion loss
• Low distortion
• Low power consumption
• Compact solution
• Low charge injection over the full signal range

APPLICATIONS
• Medical and healthcare equipment
• Data acquisition system
• Industrial control and automation
• Test and measurement equipment
• Communication systems
• Battery powered systems
• Sample and hold circuits
• Audio and video signal switching
• Relay replacement

DESCRIPTION
The DG1408 is a precision analog multiplexer comprising
eight single-ended channels. The DG1409 is a dual four
single-ended channels analog multiplexer. Built on a new
CMOS process, the Vishay Siliconix DG1408 and DG1409
offer low on-resistance of 3.2 Ω. 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 and DG1409 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). The DG1409 connects one of four
inputs to a common output for both multiplexers as
determined by a 2-bit binary address (A0 and A1).
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.
The DG1408 and DG1409 on channel conduct signal equally
well in both directions. In the off state each channel blocks
voltages up to the power supply rails. An enable (EN)
function allows the user to reset the multiplexer /
demultiplexer to all switches off for stacking several
devices.
The advance performance of low insertion loss and low
distortion make the device ideal for signal switching and
relay replacement in a wide range of applications.
DG1408 and DG1409 are available in RoHS-compliant,
halogen-free QFN16, 4 mm x 4 mm package.