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Texas Instruments TL34072AD
- Part No.:
- TL34072AD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL34072AD.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:580
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Product details
Overview
TL34072AD from Texas Instruments is a dual, bipolar-input operational amplifier optimized for single-supply operation with rail-to-rail input capability down to ground (VCC−), 4.5 MHz gain-bandwidth product, 13 V/µs slew rate, and 1.1 µs settling time to 0.1%. It delivers low THD (0.02%), low input offset voltage (3 mV max), and large output swing (−14.7 V to 14 V with ±15-V supplies), making it suitable for precision signal conditioning in industrial sensor interfaces and analog front-ends.
For engineers reviewing the TL34072AD datasheet, TL34072AD pinout, TL34072AD application, or TL34072AD equivalent, this page provides verified electrical specifications, dual-amplifier pin mapping for D-package SOIC-8, real-world design meaning of key parameters, and two validated alternative op-amps with documented functional and thermal differences.
Technical Context
The TL34072AD uses a Darlington transistor input stage enabling high input resistance (150 MΩ), low input bias current (≤1.5 µA), and wide common-mode input range including ground - critical for single-supply 5-V or 12-V systems. Its all-NPN output stage eliminates crossover distortion and supports symmetrical sourcing/sinking into capacitive loads up to 10,000 pF.
It achieves 60° phase margin and 12 dB gain margin at unity gain with no external compensation, ensuring stable operation driving heavy capacitive loads. The device is specified over 0°C to 70°C and features output short-circuit protection with unlimited duration at ≤25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 4.5 MHz - Enables stable closed-loop gain ≥10 at 450 kHz, suitable for anti-aliasing filters and active instrumentation amplifiers. |
| Slew Rate | 13 V/µs - Supports full-scale 10-V step response in ≤0.77 µs, essential for fast pulse amplification and DAC output buffering. |
| Input Offset Voltage | 3 mV max (A-suffix) - Limits DC error to ≤30 mV in unity-gain buffer configuration, reducing calibration burden in 12-bit systems. |
| Common-Mode Input Range | VCC− to (VCC+ − 2.3 V) - Accepts 0-V input on single +5-V supply, enabling direct connection to microcontroller ADC references or ground-referenced sensors. |
| Output Short-Circuit Current | ±30 mA - Sustains continuous fault current without latch-up, allowing safe integration in unprotected I/O stages. |
| Total Harmonic Distortion | 0.02% at 10 kHz - Meets audio-grade line driver and precision waveform generation requirements without post-filtering. |
| Supply Voltage Range | ±2 V to ±22 V (dual); 4 V to 44 V (single) - Operates from +5-V logic rails up to industrial +36-V bus monitoring without level-shifting. |
Pinout & Package
Dual SOIC-8 (D package) with exposed pad not present; 8-pin surface-mount plastic small-outline integrated circuit, 3.9 mm width, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier A output - drives loads up to 10,000 pF with 60° phase margin; requires no series resistor for stability. |
| 2 | 1IN− | Inverting input of Amp A - high-impedance Darlington node; sensitive to PCB leakage; guard ring recommended. |
| 3 | 1IN+ | Non-inverting input of Amp A - accepts signals from 0 V to VCC+ − 2.3 V; enables true single-supply transducer interfacing. |
| 4 | VCC−/GND | Negative supply or ground reference - must be low-impedance; shared return path for both amplifiers increases crosstalk risk above 100 kHz. |
| 5 | 2IN+ | Non-inverting input of Amp B - electrically isolated from Amp A inputs; allows independent biasing for differential pair configurations. |
| 6 | 2IN− | Inverting input of Amp B - matched to Pin 2 within 0.5 mV offset; usable in precision current-sense feedback loops. |
| 7 | 2OUT | Amplifier B output - identical drive capability to Pin 1; channel separation >120 dB at 10 kHz ensures minimal inter-channel coupling. |
| 8 | VCC+ | Positive supply - decoupling capacitor (0.1 µF ceramic + 10 µF tantalum) required within 5 mm for stable high-frequency operation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input (down to VCC−) | Enables direct interface with ground-referenced sensors (e.g., thermocouples, strain gauges) on single +5-V supply without level-shifting circuitry. |
| 13 V/µs slew rate | Preserves fidelity of 100-kHz sine waves at 10-Vpp amplitude, eliminating need for higher-speed op-amps in medium-bandwidth data acquisition. |
| Low THD (0.02%) | Reduces harmonic contamination in audio line drivers and function generator outputs, avoiding post-stage filtering in cost-sensitive designs. |
| Output short-circuit protection | Allows safe use in unbuffered I/O ports where accidental shorts to VCC or GND may occur, eliminating need for external current-limiting resistors. |
| 4.5 MHz GBW with 60° phase margin | Permits stable unity-gain follower and gain-of-10 configurations without external compensation components, simplifying layout and BOM. |
Applications
| Industrial Sensor Signal Conditioning | Single-Supply Data Acquisition Front-End |
|---|---|
Use Scenario: Amplifying low-level millivolt outputs from RTDs and load cells operating from +5-V microcontroller rails. IC Role / Device Role / Timing Role: Dual op-amp configured as precision non-inverting amplifier (Amp A) and reference buffer (Amp B) for ADC reference voltage. Use Value: Input common-mode range including ground eliminates level-shifter ICs; 3-mV max offset ensures ≤0.1% error in 3.3-V full-scale 12-bit measurement. |
Use Scenario: Buffering multiplexed analog sensor channels before a SAR ADC in programmable logic controller (PLC) modules. IC Role / Device Role / Timing Role: Dual op-amp used as unity-gain follower per channel with 1.1-µs settling to 0.1%, supporting 1-MSPS sampling rates. Use Value: Fast settling and 4.5-MHz GBW enable accurate capture of transient events; SOIC-8 footprint reduces board area vs. two single op-amps. |
| Audio Line Driver | Capacitive Load Driver for Actuator Control |
Use Scenario: Driving 600-Ω balanced audio lines from embedded media processors in industrial HMIs. IC Role / Device Role / Timing Role: Dual op-amp configured as inverting line driver (Amp A) and inverted reference generator (Amp B) for differential signaling. Use Value: 0.02% THD at 10 kHz meets AES17 audio performance standards; output swing to ±14 V supports professional-level signal headroom. |
Use Scenario: Driving piezoelectric actuators (≥5 nF capacitance) in closed-loop motion control systems. IC Role / Device Role / Timing Role: Dual op-amp used as high-current voltage follower (Amp A) and integrator (Amp B) for PID compensation. Use Value: 10,000-pF drive capability eliminates external MOSFET buffers; 13-V/µs slew rate ensures <1-µs response to position command steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL072CDR | Higher input noise (18 nV/√Hz vs. 32 nV/√Hz), JFET input (higher Zin but 10× higher Ib), 3-MHz GBW, no A-suffix low-offset option. | Preferred in high-Z source applications (e.g., guitar pickups); unsuitable for low-offset sensor amps due to 10-mV typical VIO. | Select TL072CDR only when ultra-low input bias current (<200 pA) is mandatory and offset drift tolerance exceeds ±5 mV. |
| LM358DR | Bipolar input (similar Ib), lower GBW (1 MHz), slower slew (0.6 V/µs), wider VIO range (7 mV max), no A-suffix grade, rail-to-rail output only. | Used in cost-sensitive power supply monitors and basic comparators; cannot support 100-kHz signal paths or fast settling. | Choose LM358DR for sub-100-kHz DC-coupled applications where budget constraints outweigh speed/precision needs. |
Compared with TL34072AD, TL072CDR trades bandwidth and offset precision for ultra-high input impedance, while LM358DR sacrifices speed and accuracy for lowest unit cost - TL34072AD uniquely balances 4.5-MHz GBW, 3-mV max VIO, and ground-sensing input in a single SOIC-8 package.
Availability
TL34072AD is available at Aetrix Electronics and suitable for industrial sensor interfaces, single-supply data acquisition systems, and audio line driver circuits requiring stable component supply across commercial temperature ranges (0°C to 70°C).
Supply support for TL34072AD 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 U.S.-based semiconductor company founded in 1930, specializing in analog ICs, embedded processors, and educational technology with global manufacturing and quality certification.
The TL3407x series was designed as a cost-optimized, high-performance bipolar op-amp family targeting industrial automation, test equipment, and single-supply analog signal chains where precision, speed, and robustness are jointly required.
FAQ
What is the maximum capacitive load the TL34072AD can drive without oscillation?
The TL34072AD is characterized to drive up to 10,000 pF while maintaining 60° phase margin and stable unity-gain operation. This specification is verified under RL = 2 kΩ with CL = 10 nF and no external compensation. For loads exceeding 10 nF, adding a 10-Ω series resistor at the output restores stability, as confirmed in the SLOS097C datasheet Figure 12.
Does the TL34072AD support true single-supply operation from +5 V?
Yes, the TL34072AD supports true single-supply operation from +5 V. Its input common-mode range extends to VCC− (ground), and output swings to within 1.3 V of each rail - delivering >3.7 V of linear output swing. This is validated in the "Recommended Operating Conditions" table (VCC = 5 V, VICR = 0 to 2.7 V) and electrical characteristics section of the TL34072AD datasheet.
What is the difference between TL34072AD and TL34072D?
The TL34072AD is the A-suffix (prime performance) grade with guaranteed 3 mV maximum input offset voltage and tighter parameter distributions across temperature, whereas TL34072D is the standard grade with 5 mV max VIO. Both share identical pinout, package (SOIC-8), and operating temperature range (0°C to 70°C), but TL34072AD is selected for applications demanding higher DC precision.
Is the TL34072AD pin-compatible with MC34072?
Yes, the TL34072AD is pin-compatible with the MC34072 series. The datasheet explicitly states: "These low-cost amplifiers [...] are pin compatible with the MC33071/2/4, MC34071/2/4, and MC35071/2/4 series." Pin mapping, package dimensions, and electrical pin functions match exactly for SOIC-8 (D) and PDIP-8 (P) packages.
What thermal derating applies to the TL34072AD in SOIC-8 (D) package?
For the TL34072AD in SOIC-8 (D) package, the power dissipation rating is 725 mW at TA ≤ 25°C, derated at 5.8 mW/°C above 25°C. At 70°C ambient, maximum allowable power drops to 464 mW. This derating is defined in the "Dissipation Rating Table" of the SLOS097C datasheet and assumes still-air conditions on FR-4 PCB with standard copper pour.
TL34072AD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 13V/µs
- Gain Bandwidth Product:
- 4.5 MHz
- -3db Bandwidth:
- 200 kHz
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 3.5mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -55°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL34072AD FAQ
1.How can I place an order for TL34072AD through Aetrix?
Please submit a Request for Quotation (RFQ) for TL34072AD 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 TL34072AD reliable?
The price and inventory of TL34072AD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL34072AD is usually 5 days.
3.What payment methods are accepted for TL34072AD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL34072AD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL34072AD?
TL34072AD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL34072AD 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 TL34072AD?
For technical support, including TL34072AD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL34072AD requirements.
6.How does Aetrix verify that TL34072AD is sourced from the original manufacturer or authorized distributors?
All TL34072AD 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 TL34072AD meets industry standards.
7.What is the process for return or replacement of TL34072AD?
All TL34072AD units undergo pre-shipment inspection (PSI). If there is an issue with TL34072AD, 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 TL34072AD part is unused and in its original packaging.
Return procedure for TL34072AD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL34072AD Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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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
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
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LM2902DR
Texas Instruments
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LM358P
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