PA75

1.1MHz, 2.5A, 40V Low Cost Power Amplifier

  • RoHS compliant
  • Low cost
  • Wide bandwidth – 1.1MHz
  • High output current – 2.5A (combined)
  • Wide common mode range – includes negative supply
  • Voltage supply operation
    • Single supply – 5V to 40V
    • Split supplies – ±2.5V to ±20V
  • Low quiescent current
  • Very low distortion
  • Three packaging options

 PA75 Data Sheet


PA75 Overview

The PA75 is a single chip, dual power operational amplifier capable of 2.5A of continuous output current on 5V to 40V single supplies. The IC design of the PA75 utilizes a dual power amplifier on a single monolithic die. Side B of the chip is configured as a unity gain buffer to increase the current capability of the side A “master”. Two PA75 amplifiers can be used to provide a cost effective solution for applications where multiple amplifiers are required or a bridge configuration is needed. Very low harmonic distortion of .02% THD and low standby current makes the PA75 a good solution for power audio applications as well.

The PA75 is available in three standard package designs. The PA75CC is a surface mount version that utilizes the industry standard, non-hermetic plastic 7-pin DDPAK. The PA75CD and PA75CX are thru-hole versions that utilize the industry standard, non-hermetic plastic 7-pin TO-220 package. The PA75CX offers a staggered lead formation with standard 100 mil spacing. This lead option allows for ease of PC board layout.

PA75 Typical Application

PA75 Product Variants

Variant Vos (mV) IB (nA) Temp Range (°C) Package Option Purchase
PA75CC 15 500 -25 to 85 7-pin Surface Mount DDPAK
PA75CD 15 500 -25 to 85 7-pin TO-220
PA75CX 15 500 -25 to 85 7-pin TO-220 (staggered leads)