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Texas Instruments TL074ACDR
- Part No.:
- TL074ACDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL074ACDR.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,617
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Product details
Overview
TL074ACDR from Texas Instruments is a quad JFET-input operational amplifier optimized for low-noise, high-slew-rate signal conditioning in audio and precision analog systems. 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.
For engineers reviewing the TL074ACDR datasheet, TL074ACDR pinout, TL074ACDR application, or TL074ACDR equivalent, key selection criteria include its FET-input architecture for ultra-low bias current (±1 pA typ), wide supply range, low THD+N (0.00012% typ), and SOIC-14 package compatibility with legacy TL074 designs.
Technical Context
The TL074ACDR implements a high-impedance JFET differential pair input stage enabling sub-picoampere input bias current and low 1/f noise. Its internal compensation ensures unity-gain stability with ≥5.25 MHz gain-bandwidth product and 56° phase margin under 20 pF capacitive load.
It supports single-supply operation from 4.5 V to 40 V or split supplies up to ±20 V, with common-mode input voltage range including VCC+ - critical for high-side sensing and level-shifting applications where input signals exceed the positive rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 20 V/μs - enables faithful reproduction of fast transients in audio and control-loop feedback paths without slew-induced distortion. |
| Input Voltage Noise | 37 nV/√Hz at 1 kHz - supports high-fidelity preamplification in microphone and instrument inputs where noise floor directly impacts SNR. |
| Input Bias Current | ±1 pA typical - minimizes voltage error across high-impedance sensor interfaces (e.g., piezoelectric, photodiode) and RC timing networks. |
| Supply Voltage Range | ±2.25 V to ±20 V (or 4.5 V to 40 V single-ended) - accommodates industrial, automotive, and audio rails without external level-shifting. |
| Common-Mode Input Range | Includes VCC+ - allows direct connection of signals referenced to the positive supply, simplifying high-side current sensing and active filter topologies. |
| Total Harmonic Distortion + Noise | 0.00012% at 1 kHz - meets professional audio requirements for low-intermodulation mixing and mastering stages. |
| Quiescent Current per Channel | 940 μA - balances low power consumption with performance, suitable for multi-channel portable and rack-mounted gear. |
Pinout & Package
TL074ACDR is supplied in a 14-pin SOIC (D) package with standard JEDEC outline, 1.27 mm pitch, and surface-mount compatibility. Thermal resistance RθJA is 114.2°C/W, supporting operation up to +125°C ambient when properly heatsinked.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of first op-amp channel - drives loads up to 2 kΩ with ±10 V swing under ±15 V supply. |
| 2 | 1IN− | Inverting input of first channel - accepts feedback networks and differential signal pairs with 1 TΩ common-mode input resistance. |
| 3 | 1IN+ | Noninverting input of first channel - enables high-impedance signal injection, reference buffering, and sensor interface without loading. |
| 4 | VCC+ | Positive power supply terminal - must be decoupled locally with ≥0.1 μF ceramic capacitor to suppress supply noise coupling into sensitive inputs. |
| 5 | 2IN+ | Noninverting input of second channel - electrically isolated from other channels; supports independent gain-setting and offset trimming. |
| 6 | 2IN− | Inverting input of second channel - shares no internal nodes with adjacent amplifiers, ensuring >100 dB channel separation at DC. |
| 7 | 2OUT | Output of second op-amp channel - capable of sourcing/sinking ±26 mA short-circuit current with built-in protection. |
| 8 | VCC− | Negative power supply terminal - forms return path for all four amplifiers; requires low-inductance ground plane routing. |
| 9 | 3OUT | Output of third op-amp channel - identical AC/DC specs to Channels 1 and 2; usable for cascaded filtering or multi-stage gain blocks. |
| 10 | 3IN+ | Noninverting input of third channel - supports biasing via high-value resistors without significant current-induced offset drift. |
| 11 | VCC− | Shared negative supply pin - connects internally to all four amplifier substrates; must be routed with minimal impedance. |
| 12 | 3IN− | Inverting input of third channel - compatible with standard active filter configurations (Sallen-Key, multiple-feedback) up to 100 kHz. |
| 13 | 4IN− | Inverting input of fourth channel - enables simultaneous processing of four independent analog signals (e.g., stereo L/R + effects send/return). |
| 14 | 4OUT | Output of fourth op-amp channel - fully specified for capacitive loads up to 300 pF, eliminating need for isolation resistors in cable-driving applications. |
Key Features
| Feature | Design Value |
|---|---|
| Low Input Bias Current | ±1 pA typical - preserves accuracy in high-Z sensor front-ends and electrometer-grade measurement circuits. |
| High Slew Rate | 20 V/μs - maintains fidelity for 100 kHz full-scale sine waves and fast step responses in servo control loops. |
| Wide Common-Mode Range | Extends to VCC+ - eliminates level-shifter ICs in single-supply instrumentation amplifiers and high-side current monitors. |
| Low Total Harmonic Distortion | 0.00012% at 1 kHz - satisfies THD requirements for Class A/B audio line drivers and studio-grade equalization stages. |
| Output Short-Circuit Protection | ±26 mA continuous - prevents latch-up or thermal runaway during accidental output shorts or capacitive overload conditions. |
Applications
| Pro Audio Mixer Channel Strip | Battery Test Equipment Signal Conditioning |
|---|---|
Use Scenario: Amplifying and summing microphone, line-level, and effects-return signals in a 16-channel analog mixer with individual EQ and dynamics processing. IC Role / Device Role / Timing Role: Quad op-amp providing simultaneous preamp gain, active filter sections (high-pass, low-pass), and balanced output driver stages per channel. Use Value: 37 nV/√Hz noise floor and 0.00012% THD+N ensure clean signal path integrity across 20 Hz–20 kHz bandwidth without audible artifacts. | Use Scenario: Precision voltage/current sensing and programmable load control during lithium-ion cell formation and capacity testing. IC Role / Device Role / Timing Role: Four independent amplifiers configured as current-sense buffers, reference followers, DAC output buffers, and comparator hysteresis generators. Use Value: ±1 pA input bias current prevents voltage error across megaohm shunt resistors; rail-to-rail common-mode range accommodates varying cell voltages (0–4.5 V). |
| Solar Inverter String Monitoring | Three-Phase UPS Feedback Control |
Use Scenario: Isolating and scaling DC string voltage and current measurements in central solar inverters operating at up to 1500 VDC. IC Role / Device Role / Timing Role: Front-end signal conditioner interfacing with isolation amplifiers and ADCs, performing level-shifting and anti-alias filtering. Use Value: Common-mode input range including VCC+ allows direct connection to high-side sense points without external bias networks, reducing component count and drift. | Use Scenario: Real-time voltage regulation and harmonic compensation in online double-conversion UPS systems delivering clean 230 VAC output. IC Role / Device Role / Timing Role: Quadruple op-amp implementing three-phase voltage error amplifiers and a shared oscillator/compensation network for PWM modulators. Use Value: 5.25 MHz GBW and 20 V/μs slew rate support fast transient response to load steps while maintaining stability under digital control loop latencies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad JFET-input operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL074CDR | Higher input offset voltage (3 mV max vs. 1 mV max for TL074ACDR), wider offset drift (±18 µV/°C), lower CMRR (70 dB min vs. 95 dB min). | Targeted at cost-sensitive industrial controls where precision is secondary to basic functionality. | Select TL074CDR only when budget constraints outweigh need for low-noise, low-drift performance in audio or metrology. |
| OPA4134UA | Lower noise (8 nV/√Hz), higher slew rate (20 V/μs same), rail-to-rail output, but higher quiescent current (4 mA/ch) and no VCC+-inclusive input range. | Preferred for ultra-low-noise audio preamps requiring output swing to rails, but unsuitable for high-side sensing above VCC+. | Choose OPA4134UA when output headroom is critical and input common-mode range is constrained to within supply rails. |
Compared with TL074CDR, TL074ACDR provides tighter DC precision and lower noise for demanding signal chains; versus OPA4134UA, it trades rail-to-rail output and higher power for superior input common-mode flexibility and proven reliability in legacy designs.
Availability
TL074ACDR is available at Aetrix Electronics and suitable for pro audio mixer development, battery test equipment manufacturing, and solar inverter string monitoring systems requiring stable component supply and long-term obsolescence management.
Supply support for TL074ACDR 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 over 90 years of innovation in high-reliability, high-performance components.
The TL074ACDR belongs to TI's legacy low-noise JFET-input op-amp family, engineered for precision analog signal conditioning in audio, industrial measurement, and power conversion systems where input impedance and noise performance are critical.
FAQ
What is the maximum supply voltage rating for TL074ACDR?
The TL074ACDR supports a total supply voltage (VCC+ to VCC−) of up to 40 V, or ±20 V in dual-supply configuration. Absolute maximum ratings specify 42 V for non-NS/PS packages, but recommended operating conditions limit continuous use to 40 V to ensure long-term reliability and parameter stability across temperature.
Does TL074ACDR support single-supply operation?
Yes, TL074ACDR operates from a single supply of 4.5 V to 40 V. Its common-mode input range extends to VCC+, allowing input signals referenced to the positive rail - a key advantage over many rail-to-rail input op-amps that require external biasing for single-supply use.
How does TL074ACDR differ from TL074CDR in practical design?
TL074ACDR offers tighter initial offset (1 mV max vs. 3 mV max), lower drift (±2 µV/°C vs. ±18 µV/°C), and higher CMRR (95 dB min vs. 70 dB min). These differences directly impact DC accuracy in precision integrators, sensor bridges, and low-frequency instrumentation - making TL074ACDR preferable where calibration intervals are infrequent or environmental temperature swings are wide.
Can TL074ACDR drive capacitive loads reliably?
Yes, TL074ACDR is characterized for stable operation with capacitive loads up to 300 pF. Its internal compensation and 56° phase margin prevent peaking or oscillation in cable-driving, active filter, and ADC buffer applications - though for loads >100 pF, local feedback resistor isolation is still recommended to maintain optimal settling behavior.
Is TL074ACDR pin-compatible with other TL074 variants?
Yes, TL074ACDR uses the industry-standard 14-pin SOIC (D) package and shares identical pinout with all TL074x variants (including TL074CDR, TL074IDR, TL074H). This allows drop-in replacement in existing PCB layouts without modification, provided thermal and electrical operating conditions remain within the A-grade specifications.
TL074ACDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TL074ACDR FAQ
1.How can I place an order for TL074ACDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL074ACDR 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 TL074ACDR reliable?
The price and inventory of TL074ACDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL074ACDR is usually 5 days.
3.What payment methods are accepted for TL074ACDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL074ACDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL074ACDR?
TL074ACDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL074ACDR 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 TL074ACDR?
For technical support, including TL074ACDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL074ACDR requirements.
6.How does Aetrix verify that TL074ACDR is sourced from the original manufacturer or authorized distributors?
All TL074ACDR 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 TL074ACDR meets industry standards.
7.What is the process for return or replacement of TL074ACDR?
All TL074ACDR units undergo pre-shipment inspection (PSI). If there is an issue with TL074ACDR, 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 TL074ACDR part is unused and in its original packaging.
Return procedure for TL074ACDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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