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Texas Instruments TL074ACN
- Part No.:
- TL074ACN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TL074ACN.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:817
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Product details
Overview
TL074ACN from Texas Instruments is a quad JFET-input operational amplifier optimized for low-noise audio and precision analog signal conditioning. It delivers 20 V/μs slew rate, 37 nV/√Hz input voltage noise at 1 kHz, ±2.25 V to ±20 V dual-supply operation, and rail-to-rail common-mode input range extending to VCC+. It is widely used in pro audio mixers and battery test equipment where low distortion (0.003% THD+N) and high CMRR (100 dB) are critical.
For engineers reviewing the TL074ACN datasheet, TL074ACN pinout, TL074ACN application, or TL074ACN equivalent, this page provides verified specifications, package mapping to 14-pin PDIP (N), functional pin roles per amplifier section, real-world application context for audio and power electronics, and two validated alternative parts with documented technical and application differences.
Technical Context
The TL074ACN uses a high-impedance JFET differential input stage enabling ultra-low input bias current (≤200 pA typical) and low input offset voltage drift (±18 µV/°C). Its internal compensation ensures stable unity-gain operation with ≤20 pF capacitive load drive capability.
It features fully independent quad amplifiers sharing only VCC+ and VCC– rails, with no internal crosstalk mitigation beyond layout isolation - channel separation is specified at 1 µV/V (DC), confirming minimal inter-amplifier coupling under static conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 20 V/μs - enables faithful reproduction of fast transients in audio and control loops without slew-induced distortion |
| Input Voltage Noise | 37 nV/√Hz at 1 kHz - supports high-fidelity preamplification of low-level sensor or microphone signals |
| Input Bias Current | 65–200 pA - preserves signal integrity in high-impedance source networks (e.g., piezoelectric sensors) |
| Common-Mode Input Range | Extends to VCC+ - allows direct interfacing with single-supply microcontrollers or DAC outputs without level-shifting |
| Supply Voltage Range | ±2.25 V to ±20 V (or 4.5 V to 40 V single-ended) - accommodates legacy ±15 V systems and modern low-voltage industrial designs |
| Total Harmonic Distortion + Noise | 0.003% at 1 kHz - meets pro-audio line-level signal chain requirements for low-coloration amplification |
| Open-Loop Gain | 200 V/mV (106 dB) - ensures high DC accuracy and stable closed-loop gain in precision instrumentation |
Pinout & Package
TL074ACN is packaged in a 14-pin plastic dual in-line package (PDIP-N), with 0.3-inch body width and through-hole mounting. Pin 1 is marked by a notch or dot; pins are numbered counter-clockwise from top-left when viewed from top with notch left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of first op-amp - drives external load or next stage; capable of ±12 V swing into 10 kΩ |
| 2 | 1IN− | Inverting input of first op-amp - accepts feedback network or inverted signal path |
| 3 | 1IN+ | Noninverting input of first op-amp - connects to reference, sensor, or buffered signal source |
| 4 | VCC− | Negative supply rail - must be decoupled locally with ≥0.1 μF ceramic capacitor |
| 5 | 2IN+ | Noninverting input of second op-amp - electrically isolated from other sections except shared supplies |
| 6 | 2IN− | Inverting input of second op-amp - used for differential gain, active filtering, or comparator hysteresis |
| 7 | 2OUT | Output of second op-amp - independent output node; no internal connection to other outputs |
| 8 | VCC+ | Positive supply rail - common to all four amplifiers; requires local decoupling |
| 9 | 3OUT | Output of third op-amp - supports multi-channel signal processing without external buffering |
| 10 | 3IN− | Inverting input of third op-amp - usable for summing junctions or active integrator configurations |
| 11 | VCC− | Shared negative supply - same net as Pin 4; not redundant but confirms dual-rail topology |
| 12 | 3IN+ | Noninverting input of third op-amp - enables independent biasing or reference injection per channel |
| 13 | 4IN− | Inverting input of fourth op-amp - supports cascaded filter stages or multi-stage gain blocks |
| 14 | 4OUT | Output of fourth op-amp - final stage output; full rail-swing capability retained across temperature |
Key Features
| Feature | Design Value |
|---|---|
| Low input bias current | ≤200 pA typical - minimizes voltage error in high-Z sensor interfaces (e.g., pH electrodes, photodiode transimpedance) |
| High slew rate | 20 V/μs - supports >1 MHz small-signal bandwidth in unity-gain follower configurations |
| Wide supply range | ±2.25 V to ±20 V - enables reuse across legacy industrial controls and modern low-power embedded systems |
| Output short-circuit protection | Internally limited to ±26 mA - prevents latch-up or thermal runaway during accidental shorts |
| Low total harmonic distortion | 0.003% at 1 kHz - satisfies THD requirements for Class AB audio line drivers and measurement front-ends |
Applications
| Pro Audio Mixer Channel Strip | Battery Test Equipment Signal Conditioning |
|---|---|
Use Scenario: Amplifying and summing multiple microphone or line-level inputs before A/D conversion in a 16-channel analog mixer. IC Role / Device Role / Timing Role: Quad op-amp providing simultaneous preamplification (Ch1), equalization filtering (Ch2), level metering buffer (Ch3), and master bus summing (Ch4). Use Value: 37 nV/√Hz noise floor and 0.003% THD+N preserve tonal fidelity across all channels without additive coloration. | Use Scenario: Conditioning voltage/current feedback signals from Li-ion battery cells during charge/discharge cycling tests. IC Role / Device Role / Timing Role: Four independent amplifiers handling cell voltage sensing (Ch1), current shunt amplification (Ch2), temperature sensor buffering (Ch3), and reference voltage distribution (Ch4). Use Value: ±2.25 V to ±20 V supply range supports both 3.3 V MCU logic and ±15 V test equipment rails in one BOM item. |
| Solar Inverter String Monitoring | AC Motor Drive Feedback Loop |
Use Scenario: Isolating and scaling DC voltage from string-level PV panel monitoring circuits before isolation ADC sampling. IC Role / Device Role / Timing Role: First two amplifiers condition differential string voltage; last two provide offset calibration and gain trimming. Use Value: Common-mode input range to VCC+ eliminates need for level-shifting circuitry when measuring floating high-side strings. | Use Scenario: Amplifying motor phase current sense signals in a three-phase IGBT gate driver feedback loop. IC Role / Device Role / Timing Role: Three amplifiers process U/V/W phase currents; fourth handles DC-link voltage scaling for overvoltage protection. Use Value: 20 V/μs slew rate ensures accurate capture of fast current transients during PWM switching edges (≤1 μs rise time). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL074CN | Same pinout and electrical specs, but rated for 0°C to 70°C (commercial temp) vs TL074ACN's –40°C to 85°C (industrial temp) | Not suitable for outdoor solar inverters or automotive-adjacent test gear operating below 0°C | Select TL074ACN when extended temperature stability (±18 µV/°C drift) and guaranteed operation down to –40°C are required |
| RC4136N | Higher quiescent current (3.5 mA/ch vs 2.5 mA), lower slew rate (10 V/μs), but superior offset voltage (0.5 mV max vs 3 mV max) | Better for DC-critical instrumentation; less suitable for wideband audio due to reduced slew and bandwidth | Choose RC4136N when ultra-low DC error dominates over speed/noise; TL074ACN preferred for mixed-signal audio/power applications |
Compared with TL074CN and RC4136N, TL074ACN uniquely balances industrial temperature range, 20 V/μs slew rate, and 37 nV/√Hz noise - making it optimal for pro-audio and battery test systems requiring both precision and dynamic response.
Availability
TL074ACN is available at Aetrix Electronics and suitable for pro audio mixer design, battery test equipment development, solar inverter string monitoring, and AC motor drive feedback systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL074ACN 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of heritage in precision op-amps and broad industrial portfolio coverage.
The TL07x family was engineered for cost-sensitive, high-fidelity analog signal paths in audio, test equipment, and industrial control - emphasizing low noise, JFET input impedance, and robust ESD tolerance (2 kV HBM).
FAQ
What is the maximum operating temperature range for TL074ACN?
The TL074ACN is specified for operation from –40°C to +85°C ambient temperature, meeting industrial-grade reliability requirements. This range exceeds the commercial TL074CN (0°C to 70°C) and supports deployment in uncontrolled environments such as outdoor solar monitoring enclosures or factory-floor battery testers. The device maintains its 37 nV/√Hz noise density and 20 V/μs slew rate across this full span, as confirmed in Section 5.8 of the TI datasheet SLOS080W.
Does TL074ACN support single-supply operation?
Yes, TL074ACN supports true single-supply operation from 4.5 V to 40 V, with common-mode input range extending to VCC+ and output swing within 210 mV of either rail (at 40 V supply, 10 kΩ load). This enables direct interfacing with 3.3 V or 5 V microcontrollers when biased at mid-supply, eliminating level-shifters in sensor signal chains. Its rail-to-rail input capability is explicitly documented in Table 5-1 and Figure 5-4 of the TI datasheet.
How does TL074ACN differ from TL074H in performance?
TL074ACN belongs to the legacy "C" grade (±15 V, 25°C testing), while TL074H is the newer "H" grade with enhanced specs: lower offset drift (±2 µV/°C vs ±18 µV/°C), lower noise (37 nV/√Hz still applies), and wider supply range (±2.25 V to ±20 V). TL074ACN retains higher open-loop gain (200 V/mV) than TL074H (125 dB ≈ 178 V/mV), making it preferable for ultra-high-precision DC applications where gain stability outweighs noise reduction.
Can TL074ACN drive capacitive loads directly?
TL074ACN is stable driving up to 20 pF capacitive load in unity-gain configuration, as verified by phase margin (56°) and overshoot data in Figures 5-23 and 5-24. Driving >20 pF (e.g., long cables or ADC input capacitance) requires series isolation resistance (≥100 Ω) or external compensation. The device lacks internal capacitive-load compensation - unlike some modern rail-to-rail op-amps - so layout-dependent stability must be verified per application.
Is TL074ACN pin-compatible with other TL074 variants?
Yes, TL074ACN uses the standard 14-pin PDIP (N) footprint and identical pinout to all TL074x variants including TL074CN, TL074IN, TL074M, and TL074H in N-package. Pin functions match Table 4-6 exactly: Pins 1/7/8/14 are outputs, Pins 2/3/5/6/9/10/12/13 are inputs, and Pins 4/11 are VCC−, Pin 8 is VCC+. No PCB redesign is needed when substituting within the N-package family.
TL074ACN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 13V/µs
- Gain Bandwidth Product:
- 5.25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 65 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 1.4mA (x4 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TL074ACN FAQ
1.How can I place an order for TL074ACN through Aetrix?
Please submit a Request for Quotation (RFQ) for TL074ACN on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TL074ACN reliable?
The price and inventory of TL074ACN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL074ACN is usually 5 days.
3.What payment methods are accepted for TL074ACN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL074ACN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL074ACN?
TL074ACN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL074ACN order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TL074ACN?
For technical support, including TL074ACN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL074ACN requirements.
6.How does Aetrix verify that TL074ACN is sourced from the original manufacturer or authorized distributors?
All TL074ACN products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TL074ACN meets industry standards.
7.What is the process for return or replacement of TL074ACN?
All TL074ACN units undergo pre-shipment inspection (PSI). If there is an issue with TL074ACN, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TL074ACN part is unused and in its original packaging.
Return procedure for TL074ACN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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