匹配的单片四路晶体管 Matched Monolithic Quad Transistor
GENERAL DESCRIPTION
The 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