STMicroelectronics TL074ACDT

Overview

TL074ACDT from STMicroelectronics is a low-noise JFET-input quad operational amplifier in SO14 package, featuring 16 V/µs typical slew rate, 15 nV/√Hz input voltage noise, and ±11 V common-mode input range at ±15 V supply. It delivers 0.01% THD at 1 kHz and supports audio distribution, active filtering, and sensor signal conditioning in industrial and consumer equipment.

For engineers reviewing the TL074ACDT datasheet, TL074ACDT pinout, TL074ACDT application, or TL074ACDT equivalent, key selection criteria include input bias current (≤30 pA), output short-circuit protection, JFET input stage high impedance (10¹² Ω), and guaranteed operation from 0°C to +70°C with ±15 V supply.

Technical Context

The TL074ACDT integrates four matched JFET-input op-amps on a single monolithic die, using high-voltage JFETs for input stages and bipolar transistors for output drivers. Its internal frequency compensation ensures unity-gain stability without external components.

It operates over ±6 V to ±18 V supply range with rail-to-rail-compatible input common-mode range up to ±11 V, and provides 120 dB channel separation at AV = 100 - critical for multi-channel signal integrity in mixed-signal systems.

Key Specifications

Pinout & Package

TL074ACDT is housed in a 14-pin SOIC (SO14) surface-mount package measuring 8.75 mm × 4.0 mm × 1.65 mm (max height), with 1.27 mm pitch and ECOPACK® compliance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad JFET-input op-amp applications.

Compared with TL074CDT, TL074ACDT offers tighter input offset voltage (1 mV max vs. 3 mV) and improved CMRR (86 dB vs. 70 dB), making it preferable for precision DC-coupled applications; versus RC4136N, its SO14 package and superior noise performance (15 nV/√Hz vs. 25 nV/√Hz) better suit modern compact audio and test equipment designs.

Availability

TL074ACDT is available at Aetrix Electronics and suitable for audio distribution systems, active filter modules, sensor interface boards, and DC-coupled test equipment requiring stable component supply across medium-volume production runs.

Supply support for TL074ACDT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, analog ICs, power management devices, and MEMS sensors for industrial, automotive, and consumer markets.

The TL074 series belongs to ST's precision analog op-amp product line, engineered specifically for low-noise, high-input-impedance signal conditioning in audio, instrumentation, and control systems where JFET input advantages outweigh rail-to-rail output limitations.

FAQ

What is the maximum operating junction temperature for TL074ACDT?

The absolute maximum junction temperature is +150°C, with thermal resistance junction-to-ambient (R_thJA) rated at 105°C/W in SO14 package. Under typical 1.4 mA per amplifier supply current and ±15 V rails, steady-state junction temperature rise remains below 40°C with standard PCB copper pour - well within safe operating limits for continuous use.

Does TL074ACDT support single-supply operation?

Yes - TL074ACDT can operate from a single +12 V to +36 V supply, with input common-mode range extending down to 1.5 V above VCC– (ground). However, output swing is asymmetric: typically +10 V to –2 V referenced to ground. For true single-supply applications requiring rail-to-rail output, consider the TS912 or TSV914 families instead.

How does TL074ACDT differ from TL074CDT beyond temperature grade?

TL074ACDT features tighter initial input offset voltage (1 mV max vs. 3 mV), improved CMRR (86 dB min vs. 70 dB), and lower input offset voltage drift (10 µV/°C vs. 15 µV/°C). These enhancements directly improve DC accuracy in multi-stage amplifiers and reduce calibration burden in production test systems.

Can TL074ACDT drive 600 Ω audio loads directly?

No - TL074ACDT is not optimized for low-impedance driving. Its output stage delivers only ~10 mA short-circuit current and exhibits significant distortion (>1%) into 600 Ω at full swing. For professional audio line drivers, pair it with an external buffer like the BUF634 or use dedicated line-driver op-amps such as the OPA1632.