MOSFET ARRAY - Advanced Linear Devices
Description
ADVANCED LINEAR DEVICES, INC.
e TM
EPAD ® ENAB
L
E
D
ALD212900A/ALD212900
PRECISION N-CHANNEL EPAD® MOSFET ARRAY
DUAL HIGH DRIVE ZERO THRESHOLD™ MATCHED PAIR
VGS(th)= +0.
00V
GENERAL DESCRIPTION
The ALD212900A/ALD212900 precision N-Channel EPAD® MOSFET array is precision matched at the factory using ALD’s proven EPAD® CMOS technology.
These dual monolithic devices are enhanced additions to the ALD110900A/ ALD110900 EPAD® MOSFET Family, with increased forward transconductance and output conductance, particularly at very low supply voltages.
Intended for low voltage, low power small signal applications, the ALD212900A/ ALD212900 features Zero-Threshold™ voltage, which enables circuit designs with input/output signals referenced to GND at enhanced operating voltage ranges.
With these devices, a circuit with multiple cascading stages can be built to operate at extremely low supply/bias voltage levels.
For example, a nanopower input amplifier stage operating at less than 0.
2V supply voltage has been successfully built with these devices.
ALD212900A EPAD MOSFETs feature exceptional matched pair device electrical characteristics of Gate Threshold Voltage VGS(th) set precisely at 0.
00V +0.
01V, IDS = +20µA @ VDS = 0.
1V, with a typical offset voltage of only +0.
001V (1mV).
Built on a single monolithic chip, they also exhibit excellent temperature tracking characteristics.
These precision devices are versatile as design components for a broad range of analog small signal applications such as basic building blocks for current mirrors, matching circuits, current sources, differential amplifier input stages, transmission gates, and multiplexers.
They also excel in limited operating voltage applications, such as very low level voltageclamps and nano-power normally-on circuits.
In addition to precision matched-pair electrical characteristics, each individual EPAD MOSFET also exhibits well controlled manufacturing characteristics, enabling the user to depend on tight design ...
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