AC Electrical Characteristics

Symbol

Parameter

Conditions

Limits

Units

Min

Typ

Max

NF

Low Frequency Noise Figure

325

dB

Gain Bandwidth Product

300

500

MHz

Emitter to Base Capacitance

070

pF

Collector to Base Capacitance

037

pF

Collector to Substrate Capacitance

22

pF

Low Frequency Small Signal Equivalent Circuit Characteristics

Forward Current Transfer Ratio

100

Short Circuit Input Impedance

35

kX

Open Circuit Output Impedance

156

m

mho

Open Circuit Reverse Voltage

Transfer Ratio

Admittance Characteristics

Forward Transfer Admittance

mmho

Input Admittance

mmho

Output Admittance

mmho

Reverse Transfer Admittance

(Note 3)

mmho

Note 1

The collector of each transistor is isolated from the substrate by an integral diode The substrate must be connected to a voltage which is more negative

than any collector voltage in order to maintain isolation between transistors and provide normal transistor action To avoid undesired coupling between transistors

the substrate terminal should be maintained at either dc or signal (ac) ground A suitable bypass capacitor can be used to establish a signal ground

Note 2

Note 3

See curve

3