Quad SPST-NO switch with precision analog performance
The DG412FEUE+: Each of the four independent switches presents a maximum 35 Ohm on-resistance with channel-to-channel matching within 200 mOhm, ensuring consistent attenuation across all paths in multiplexed or matrix-switching applications. Switching speed is rated at 175 ns turn-on and 145 ns turn-off maximum, fast enough for audio crosspoint switching, data acquisition front-ends, or sample-and-hold circuits where settling time budgets are tight.
Signal integrity and supply flexibility
Crosstalk between channels is specified at -105 dB at 1 MHz, which means a signal on one channel couples into an adjacent channel at roughly 5.6 µV per volt of signal — negligible for 16-bit ADC driving or precision instrumentation where channel isolation preserves measurement accuracy. Charge injection is just 5 pC typical, so the switch injects minimal charge into the signal path when turning off — critical for sample-and-hold circuits where injected charge creates a voltage error across the hold capacitor. Off-leakage current is a maximum 250 pA at 25°C, and channel capacitance is 15 pF (source off) and 47 pF (drain off) — these low parasitics preserve signal bandwidth and minimize DC offset errors in high-impedance sensor interfaces.
Package, temperature grade, and compliance
Housed in a 16-lead TSSOP (4.40 mm width, 0.173" pitch) for surface-mount assembly, the DG412FEUE+ is supplied in tube packaging — suitable for prototype builds or low-to-medium volume production where tape-and-reel is not required. Analog Devices lists this part as Active in production and ROHS3 compliant (EU 2015/863), so it passes RoHS exemption reviews for new designs shipping into European or California-regulated markets.