The CA5420A is an integrated circuit operational amplifier that combines PMOS transistors and bipolar transistors on a single monolithic chip. It is designed and guaranteed to operate in microprocessor logic systems that use V+ = 5V, V- = GND, since it can operate down to ±1V supplies. It will also be suitable for 3.3V logic systems.

Features
• CA5420A at 5V supply voltage with full military temperature range guaranteed specifications
• CA5420A guaranteed to operate from ±1V to ±10V supplies
• 2V supply at 350µA supply current
• 1pA (Typ) input current (essentially constant to +85°C)
• Rail-to-rail output swing (Drive ±2mA into 1kΩ load)
• Pin compatible with 741 op amp
• Pb-free (RoHS compliant)

Applications
• pH probe amplifiers
• Picoammeters
• Electrometer (High Z) instruments
• Portable equipment
• Inaccessible field equipment
• Battery dependent equipment (medical and military)
• 5V logic systems
• Microprocessor interface