15MHz, BiMOS Microprocessor Operational Amplifiers with MOSFET Input/CMOS Output

CA5130A and CA5130 are integrated circuit operational amplifiers that combine the advantage of both CMOS and bipolar transistors on a monolithic chip. They are designed and guaranteed to operate in microprocessors or logic systems that use +5V supplies.

Gate protected P-Channel MOSFET (PMOS) transistors are used in the input circuit to provide very high input impedance, very low input current, and exceptional speed performance. The use of PMOS field effect transistors in the input stage results in common mode input voltage capability down to 0.5V below the negative supply terminal, an important attribute in single supply applications.

Features

• MOSFET Input Stage

- Very High Zl . . . . . . . . . . . . . 1.5TΩ (1.5 x 1012Ω) (Typ)

- Very Low ll . . . . . . . . . . . . . 5pA (Typ) at 15V Operation 2pA (Typ) at 5V Operation

• Ideal for Single Supply Applications

• Common Mode Input Voltage Range Includes Negative Supply Rail; Input Terminals Can Be Swung 0.5V Below Negative Supply Rail

• CMOS Output Stage Permits Signal Swing to Either (or Both) Supply Rails

• CA5130A, CA5130 Have Full Military Temperature Range Guaranteed Specifications for V+ = 5V

• CA5130A, CA5130 Are Guaranteed to Operate Down to V+ = 4.5V for AOL

• CA5130A, CA5130 Are Guaranteed to Operate at ±7.5V CA3130A, CA3130 Specifications

Applications

• Ground Referenced Single Supply Amplifiers

• Fast Sample-Hold Amplifiers

• Long Duration Timers/Monostables

• High Input lmpedance Comparators (Ideal Interface with Digital CMOS)

• High lnput Impedance Wideband Amplifiers

• Voltage Followers (e.g., Follower for Single-Supply D/A Converter)

• Voltage Regulators (Permits Control of Output Voltage Down to 0V)

• Peak Detectors

• Single Supply Full Wave Precision Rectifiers

• Photo Diode Sensor Amplifiers

• 5V Logic Systems

• Microprocessor Interface