onsemi NCV33274ADTBR2G Quad Operational Amplifier: Datasheet, Application Circuit, and Pinout Configuration

The onsemi NCV33274ADTBR2G is a high-performance, quad operational amplifier (op-amp) engineered for demanding automotive and industrial applications. This device integrates four independent, high-gain op-amps on a single monolithic chip, offering a compelling blend of performance, reliability, and space efficiency. Its design is characterized by low supply current, high output drive capability, and a wide operating supply voltage range, making it a versatile solution for a multitude of analog signal conditioning tasks.

Pinout Configuration

Housed in a space-saving TSSOP-14 package, the pinout is crucial for PCB layout. The four op-amps are arranged symmetrically:

Pins 1, 7, 8, 14: Outputs of the four amplifiers (OUT A, OUT B, OUT C, OUT D).

Pins 2, 6, 9, 13: Inverting Inputs (-IN A, -IN B, -IN C, -IN D).

Pins 3, 5, 10, 12: Non-Inverting Inputs (+IN A, +IN B, +IN C, +IN D).

Pin 4: Positive Supply Voltage (VCC+).

Pin 11: Negative Supply Voltage/Ground (VCC-).

This standardized pinout ensures compatibility with other quad op-amps in the same package, facilitating easy design upgrades.

Datasheet Key Specifications

The datasheet provides the essential electrical characteristics that define the amplifier's performance envelope. Key parameters include:

Supply Voltage Range: 4 V to 32 V (±16 V), supporting both single and dual supply operations.

Low Supply Current: Typically 1.2 mA per amplifier, which is critical for power-sensitive applications.

High Output Drive: Capable of sinking and sourcing significant current, making it suitable for driving heavy loads like relays or small motors.

Input Common-Mode Voltage Range: Includes ground (VEE), which is a vital feature for single-supply operation.

Extended Temperature Range: -40°C to +125°C, certifying its operation in harsh environments, a hallmark of automotive-grade components.

Application Circuit

A quintessential application for the NCV33274ADTBR2G is a 4-channel instrumentation amplifier or a multi-stage active filter bank. One of its most common uses is as a set of non-inverting amplifiers for sensor signal buffering and gain. A typical circuit for one channel would involve:

1. Applying the input signal (e.g., from a sensor) to the non-inverting input (+IN).

2. Configuring a feedback network between the output (OUT) and the inverting input (-IN) using two resistors (R1 and R2) to set the closed-loop gain (Av = 1 + R2/R1).

3. Powering the IC with a stable supply within its 4V to 32V range, with bypass capacitors placed close to the supply pins (4 and 11) to minimize noise.

The device's high output drive and wide bandwidth also make it an excellent choice for driving analog-to-digital converters (ADCs) or creating voltage-controlled oscillators (VCOs) in more complex systems.

ICGOODFIND: The onsemi NCV33274ADTBR2G stands out as a robust and reliable quad operational amplifier, particularly suited for the challenging conditions of automotive electronics. Its combination of wide voltage operation, low power consumption, and high output drive in a compact package makes it an optimal choice for designers seeking to enhance signal integrity and system performance in multi-channel applications.

Keywords: Quad Operational Amplifier, Automotive Grade, Low Supply Current, Wide Supply Voltage, High Output Drive