DESCRIPTION
THAT120 is a quad, large-geometry monolithic PNP transistor array which combines low noise, high speed and excellent parametric matching. The large geometry typically results in 25 Ω base spreading resistance, producing 0.75 nV/√Hz voltage noise. This makes these parts an excellent choice for low-noise amplifier input stages.

FEATURES
 • Four Matched PNP Transistors
 • Low noise — 0.75 nV/√Hz
 • High Speed — 325 MHz ft
 • Excellent Matching - 500 μV (typ)
 • Dielectrically Isolated
 • -25 V VCEO

APPLICATIONS
 • Microphone Preamplifiers
 • Tape Head Preamplifiers
 • Current Sources
 • Current Mirrors
 • Log/Antilog Amplifiers
 • Multipliers