GENERAL DESCRIPTION
ALD114835/ALD114935 are high precision monolithic quad/dual depletion mode N-Channel MOSFETs matched at the factory using ALD’s proven EPAD CMOS technology. These devices are intended for low voltage, small signal applications.

FEATURES
• Depletion mode (normally ON)
• Precision Gate Threshold Voltages: -3.50V +/- 0.05V
• Nominal RDS(ON) @VGS=0.0V of 540Ω
• Matched MOSFET to MOSFET characteristics
• Tight lot to lot parametric control
• Low input capacitance
• VGS(th) match (VOS) — 20mV
• High input impedance — 1012Ω typical
• Positive, zero, and negative VGS(th) temperature coefficient
• DC current gain >108
• Low input and output leakage currents

APPLICATIONS
• Functional replacement of Form B (NC) relay
• Zero power fail safe circuits
• Backup battery circuits
• Power failure detector
• Fail safe signal detector
• Source followers and buffers
• Precision current mirrors
• Precision current sources
• Capacitives probes
• Sensor interfaces
• Charge detectors
• Charge integrators
• Differential amplifier input stage
• High side switches
• Peak detectors
• Sample and Hold
• Alarm systems
• Current multipliers
• Analog switches
• Analog multiplexers
• Voltage comparators
• Level shifters