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Texas Instruments TL074CD
- Part No.:
- TL074CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL074CD.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,542
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Product details
Overview
TL074CD from Texas Instruments is a quad-channel, 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 high fidelity and DC accuracy are critical.
For engineers reviewing the TL074CD datasheet, TL074CD pinout, TL074CD application, or TL074CD equivalent, key selection considerations include its FET-input architecture for ultra-low bias current (±1 pA typ), wide supply flexibility, output short-circuit protection, and guaranteed performance across 0°C to 70°C industrial temperature range.
Technical Context
The TL074CD employs a high-impedance JFET differential input stage followed by a Class AB output stage, enabling low input bias current and high open-loop gain (125 dB typ). Its internal compensation ensures unity-gain stability with capacitive loads up to 300 pF.
It supports single-supply (4.5 V to 40 V) or split-supply (±2.25 V to ±20 V) operation, with common-mode input voltage range including VCC+ - a key enabler for high-side sensing and level-shifting applications without external bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad - enables compact multi-stage filtering, instrumentation, or signal routing in one package |
| Slew Rate | 20 V/μs - supports clean amplification of audio-band signals up to ~300 kHz at unity gain |
| Input Voltage Noise | 37 nV/√Hz @ 1 kHz - preserves dynamic range in low-level sensor and microphone preamp circuits |
| Input Bias Current | ±1 pA (typ) - minimizes voltage error in high-impedance feedback networks (e.g., >1 MΩ) |
| Supply Voltage Range | ±2.25 V to ±20 V (or 4.5 V to 40 V) - compatible with legacy ±15 V systems and modern low-voltage designs |
| Common-Mode Input Range | Includes VCC+ - allows direct interface to signals referenced to positive rail (e.g., DAC outputs, photodiode anodes) |
| Offset Voltage Drift | ±2 μV/°C - ensures <±0.25 mV drift over 0°C–70°C, critical for precision DC-coupled stages |
Pinout & Package
TL074CD is supplied in a 14-pin SOIC (D) package with standard JEDEC outline and 1.27 mm pitch. Pin 1 is marked with a beveled corner or dot; the device is not pin-compatible with LM324 or other bipolar-input quads due to different input stage topology and biasing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier A output - drives load or next stage; rated for ±26 mA short-circuit current |
| 2 | 1IN− | Inverting input of Amp A - high-impedance JFET node; sensitive to PCB leakage and EMI |
| 3 | 1IN+ | Noninverting input of Amp A - same impedance as IN−; common-mode range includes VCC+ |
| 4 | VCC+ | Positive power supply - must be decoupled locally with ≥0.1 μF ceramic capacitor |
| 5 | 2IN+ | Noninverting input of Amp B - electrically isolated from other inputs; no internal offset trim pins |
| 6 | 2IN− | Inverting input of Amp B - identical electrical characteristics to Pin 2 |
| 7 | 2OUT | Amplifier B output - independent channel; shares no internal nodes with Amp A |
| 8 | VCC− | Negative power supply - reference for all four amplifiers; requires local decoupling |
| 9 | 3OUT | Amplifier C output - fully buffered; supports 10 kΩ load with <115 mV headroom from rails |
| 10 | 3IN+ | Noninverting input of Amp C - matches Pin 3 performance; no internal trimming |
| 11 | VCC− | Shared negative rail - all four amps use common VCC− connection (Pin 8 and Pin 11 are internally bonded) |
| 12 | 3IN− | Inverting input of Amp C - identical to Pin 2; layout symmetry recommended for matched channels |
| 13 | 4IN− | Inverting input of Amp D - independent, unbuffered JFET input; no cross-talk with other channels |
| 14 | 4OUT | Amplifier D output - final channel; same AC/DC specs as Pins 1, 7, and 9 |
Key Features
| Feature | Design Value |
|---|---|
| Low input bias current | ±1 pA typical - enables high-Z sensor interfaces and long-time-constant integrators without drift |
| High slew rate | 20 V/μs - maintains fidelity for fast transients in audio line drivers and active filters |
| Output short-circuit protection | ±26 mA continuous limit - prevents latch-up or thermal runaway during fault conditions |
| Wide common-mode input range | Extends to VCC+ - eliminates need for level-shifting resistors when amplifying signals near supply rails |
| Low total harmonic distortion | 0.003% (typ) at 1 kHz - meets THD requirements for professional audio signal paths |
Applications
| Pro Audio Mixer Channel | Battery Test Equipment |
|---|---|
Use Scenario: Amplifying and summing microphone or line-level signals before ADC conversion in a 16-channel analog mixer. IC Role / Device Role / Timing Role: Quad op-amp configured as preamp, tone control, summing junction, and output driver per channel. Use Value: Low 37 nV/√Hz noise preserves SNR; rail-inclusive common-mode range accepts DC-coupled inputs without biasing. | Use Scenario: Precision voltage/current sourcing and measurement during lithium-ion cell formation and cycling tests. IC Role / Device Role / Timing Role: Four independent amplifiers used for I-sense amplification, V-sense buffering, reference scaling, and comparator hysteresis generation. Use Value: ±1 pA input bias avoids error in high-resistance shunt monitoring; ±2.25 V to ±20 V supply supports both low-voltage test modes and full-cell voltage ranges. |
| Solar Inverter String Monitoring | AC Motor Drive Signal Conditioning |
Use Scenario: Isolated DC voltage monitoring of individual PV module strings in central inverters, interfacing with isolation amplifiers. IC Role / Device Role / Timing Role: Buffering and filtering analog outputs from isolated voltage sensors prior to multiplexing and digitization. Use Value: 125 dB open-loop gain ensures <0.001% gain error; wide supply range accommodates auxiliary 12 V or 24 V monitoring rails. | Use Scenario: Conditioning feedback signals (phase current, DC bus voltage, temperature) in three-phase servo drive control boards. IC Role / Device Role / Timing Role: Signal conditioning front-end: anti-alias filtering, level shifting, and drive for isolated ADC inputs. Use Value: Output short-circuit protection safeguards against transient faults on motor phase traces; 20 V/μs slew rate supports PWM edge detection. |
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 |
|---|---|---|---|
| TL074CP | Same electrical specs but in 14-pin PDIP package; higher thermal resistance (80 °C/W vs 114 °C/W for SOIC) | Preferred for through-hole prototyping or legacy board rework; less suitable for high-density SMT layouts | Select TL074CP only when manual assembly or socketing is required; SOIC offers better thermal performance and smaller footprint. |
| TL084CD | Higher slew rate (13 V/μs vs 20 V/μs), slightly higher input noise (18 nV/√Hz), same pinout and supply range | Used where faster settling is needed but lower noise is secondary; not drop-in due to different noise profile and bias current (±30 pA) | Choose TL084CD only if system bandwidth demands exceed TL074CD capability and noise budget allows; verify THD and DC drift impact. |
Compared with TL074CP and TL084CD, the TL074CD provides the optimal balance of ultra-low noise, sub-picoampere bias current, and robust 20 V/μs slew rate in a surface-mount SOIC package - making it the preferred choice for precision audio and test instrumentation where signal integrity is paramount.
Availability
TL074CD is available at Aetrix Electronics and suitable for pro audio mixer design, battery test equipment development, and solar inverter string monitoring requiring stable component supply and long-term industrial availability.
Supply support for TL074CD 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 designed specifically for cost-sensitive, high-fidelity analog signal chains - delivering JFET-input performance with robust ESD tolerance (2 kV HBM) and extended temperature reliability for audio, test, and energy infrastructure applications.
FAQ
What is the operating temperature range for TL074CD?
The TL074CD is specified for operation from 0°C to +70°C ambient temperature. This commercial-grade rating aligns with its "C" suffix designation and makes it suitable for indoor industrial equipment, audio gear, and benchtop test instruments where environmental extremes are not encountered. The device's ±2 μV/°C offset drift ensures predictable DC performance across this full range.
Does TL074CD support single-supply operation?
Yes, TL074CD supports true single-supply operation from 4.5 V to 40 V. Its common-mode input voltage range extends to VCC+, allowing inputs to swing up to the positive rail - a critical feature for single-supply sensor interfaces and DAC output buffering. However, output swing remains rail-limited (typically 115–210 mV from each rail), so proper headroom must be maintained.
How does TL074CD differ from TL074H in performance?
The TL074CD uses the legacy die (characterized in Sections 5.8–5.9), while TL074H uses the newer "H"-suffix die (Section 5.7). Key differences include lower typical offset voltage (±1 mV vs ±3 mV), lower input noise (37 nV/√Hz vs 18 nV/√Hz for PS/NS packages), and tighter offset drift (±2 μV/°C vs ±18 μV/°C) in the H version. TL074CD remains ideal for cost-sensitive applications where the legacy spec meets design requirements.
Can TL074CD drive capacitive loads directly?
TL074CD is stable driving capacitive loads up to 300 pF with appropriate feedback network design. Its internal compensation and 5.25 MHz gain-bandwidth product allow reliable unity-gain operation into moderate capacitance, but for >300 pF (e.g., long cables or LCD panels), external isolation resistors or gain-setting networks are recommended to prevent peaking or oscillation - verified in Figure 5-23 and Figure 5-24 of the datasheet.
Is TL074CD pin-compatible with LM324?
No, TL074CD is not pin-compatible with LM324. Although both are quad op-amps in 14-pin SOIC, their pinouts differ: LM324 places VCC− on Pin 4 and VCC+ on Pin 11, while TL074CD uses Pin 4 for VCC+ and Pin 11 for VCC− (shared with Pin 8). Additionally, TL074CD's JFET input stage requires different biasing and layout practices than LM324's bipolar inputs - direct substitution will cause functional failure.
TL074CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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
TL074CD FAQ
1.How can I place an order for TL074CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TL074CD 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 TL074CD reliable?
The price and inventory of TL074CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL074CD is usually 5 days.
3.What payment methods are accepted for TL074CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL074CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL074CD?
TL074CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL074CD 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 TL074CD?
For technical support, including TL074CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL074CD requirements.
6.How does Aetrix verify that TL074CD is sourced from the original manufacturer or authorized distributors?
All TL074CD 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 TL074CD meets industry standards.
7.What is the process for return or replacement of TL074CD?
All TL074CD units undergo pre-shipment inspection (PSI). If there is an issue with TL074CD, 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 TL074CD part is unused and in its original packaging.
Return procedure for TL074CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL074CD Tags
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LM358DT
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM358P
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