Microchip MCP604T-I/ST Quad Op-Amp: Features, Applications, and Technical Specifications

The Microchip MCP604T-I/ST is a quad operational amplifier (op-amp) that stands out in the realm of low-power analog integrated circuits. Designed for applications where power consumption is a critical constraint, this device combines exceptional performance with minimal energy requirements, making it a preferred choice for battery-powered and portable electronics.

Key Features

One of the most significant attributes of the MCP604T-I/ST is its ultra-low quiescent current, typically drawing just 600 nanoamps per amplifier. This remarkably low power consumption does not come at the expense of functionality. The op-amp operates on a single supply voltage ranging from 1.4V to 6.0V, providing design flexibility for both 3.3V and 5V systems. Furthermore, it features rail-to-rail input and output operation, enabling the amplifiers to utilize the entire supply voltage range for signal swing, which is crucial for maximizing dynamic range in low-voltage applications. The device is also characterized by a low input bias current and stable operation with high capacitive loads.

Primary Applications

The combination of low power and rail-to-rail capability makes the MCP604T-I/ST exceptionally versatile. Its primary application domains include:

Battery-Powered Equipment: It is ideal for portable instrumentation, medical sensors, smoke detectors, and remote data loggers where extending battery life is paramount.

Sensor Interface and Signal Conditioning: The op-amp is perfectly suited for amplifying small signals from transducers, photodiode amplifiers, pressure sensors, and thermocouples.

Active Filtering: Its stability makes it a good candidate for implementing Sallen-Key and other active filter topologies in power-sensitive systems.

Analog-to-Digital Converter (ADC) Buffering: The rail-to- output swing ensures the full-scale input range of an ADC is used efficiently, improving system resolution.

Technical Specifications

Number of Channels: 4 (Quad)

Supply Voltage Range: 1.4V to 6.0V

Quiescent Current (Typ.): 600 nA per amplifier

Gain Bandwidth Product: 14 kHz (Typ.)

Input Offset Voltage: 500 µV (Max.)

Input Bias Current: 1 pA (Typ.)

Output Swing: Rail-to-Rail

Operating Temperature Range: -40°C to +85°C (Industrial)

Package: TSSOP-14

ICGOOODFIND: The Microchip MCP604T-I/ST is a quintessential component for designers prioritizing ultra-low power consumption and space efficiency. Its quad configuration in a compact TSSOP-14 package offers high functional density, making it an outstanding solution for extending battery life and enhancing performance in portable, industrial, and consumer analog systems.

Keywords: Low-Power Op-Amp, Rail-to-Rail I/O, Quad Amplifier, Battery-Powered Devices, Sensor Signal Conditioning