GENERAL DESCRIPTION
ALD110800A/ALD110800/ALD110900A/ALD110900 are monolithic quad/dual N-Channel MOSFETs matched at the factory using ALD’s proven EPAD® CMOS technology. These devices are intended for low voltage, small signal applications. The ALD110800/ALD110900 features zero threshold voltage, which reduces or eliminates input to output voltage level shift, including circuits where the signal is referenced to GND or V+. This feature greatly reduces output signal voltage level shift and enhances signal operating range, especially for very low operating voltage environments. With these zero threshold devices an analog circuit with multiple stages can be constructed to operate at extremely low supply or bias voltage levels. As an example, an input amplifier stage operating at 0.2V supply voltage has been demonstrated.

FEATURES
• Precision zero threshold voltage mode
• Nominal RDS(ON) @VGS=0.0V of 104KΩ
• Matched MOSFET to MOSFET characteristics
• Tight lot to lot parametric control
• VGS(th) match (VOS) to 2mV and 10mV
• Positive, zero, and negative VGS(th) tempco
• Low input capacitance
• Low input/output leakage currents

APPLICATIONS
• Very low voltage analog and digital circuits
• Zero power fail safe circuits
• Backup battery circuits & power failure detector
• Low level voltage clamp & zero crossing detector
• Source followers and buffers
• Precision current mirrors and current sources
• Capacitives probes and sensor interfaces
• Charge detectors and charge integrators
• Differential amplifier input stage
• High side switches
• Peak detectors and level shifters
• Sample and Hold
• Current multipliers
• Analog switches / multiplexers
• Voltage comparators and level shifters