MAT04

`Low Offset Voltage: 200
V max
`High Current Gain: 400 min
`Excellent Current Gain Match: 2% max
`Low Noise Voltage at 100 Hz, 1 mA: 2.5 nV/Hz max
`Excellent Log Conformance: rBE = 0.6  max
`Matching Guaranteed for All Transistors
`Available in Die Form

The MAT04 is a quad monolithic NPN transistor that offers excellent parametric matching for precision amplifier and nonlinear circuit applications. Performance characteristics of the MAT04 include high gain (400 minimum) over a wide range of collector current, low noise (2.5 nV/Hz maximum at 100 Hz, IC = 1 mA) and excellent logarithmic conformance. The MAT04 also features a low offset voltage of 200 V and tight current gain matching, to within 2%. Each transistor of the MAT04 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 25°C and over the industrial and military temperature ranges. The long-term stability of matching parameters is guaranteed by the protection diodes across the base-emitter junction of each transistor. These diodes prevent degradation of beta and matching characteristics due to reverse bias base-emitter current. The superior logarithmic conformance and accurate matching characteristics of the MAT04 makes it an excellent choice foruse in log and antilog circuits. The device is an ideal choice in applications where low noise and high gain are required.