GENERAL DESCRIPTION

The MAT14 is a quad monolithic NPN transistor that offers excellent parametric matching for precision amplifier and nonlinear circuit applications. Performance characteristics of the MAT14 include high gain (300 minimum) over a wide range of collector current, low noise (3 nV/√Hz maximum at 100 Hz, IC = 1 mA), and excellent logarithmic conformance. The MAT14 also features a low offset voltage of 100 µV typical and tight current gain matching to within 4. Each transistor of the MAT14 is individually tested to data sheet specifications. For matching parameters (offset voltage, input offset current, and gain match), each of the dual transistor combinations are verified to meet stated limits. Device performance is guaranteed at an ambient temperature of 25°C and over the industrial temperature range.

FEATURES

Low offset voltage: 400 µV maximum

High current gain: 300 minimum

Excellent current gain match: 4 maximum

Low voltage noise density at 100 Hz, 1 mA

3 nV/√Hz maximum

Excellent log conformance

Bulk resistance (rBE) = 0.6 Ω maximum

Guaranteed matching for all transistors

APPLICATIONS

Low noise op amp front end

Current mirror and current sink/source

Low noise instrumentation amplifiers

Voltage controlled attenuators

Log amplifiers