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Texas Instruments TL33072AD
- Part No.:
- TL33072AD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL33072AD.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:766
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Product details
Overview
TL33072AD from Texas Instruments is a dual, high-speed, bipolar operational amplifier designed for industrial/vehicular applications requiring wide supply range and rail-to-rail input capability. It delivers 4.5 MHz gain-bandwidth product, 13 V/µs slew rate, and 1.1 µs settling time to 0.1%, with ±2 V to ±22 V (4 V to 44 V single-supply) operation and input common-mode range extending to VCC− (ground). It is used in precision sensor signal conditioning and active filter stages in automotive engine control units.
For engineers reviewing the TL33072AD datasheet, TL33072AD pinout, TL33072AD application, or TL33072AD equivalent, this page provides verified electrical specifications, package-confirmed pin functions, real-world use cases, and two validated alternative op-amps with documented functional and thermal differences.
Technical Context
The TL33072AD employs a Darlington transistor input stage enabling high input resistance (150 MΩ), low input offset voltage (≤3 mV), and wide input common-mode range down to VCC−. Its all-NPN output stage eliminates crossover distortion and supports symmetrical sourcing/sinking with large output swing (−14.7 V to +14 V at ±15 V supplies).
It achieves 60° phase margin and 12 dB gain margin under no-load conditions, and maintains stability driving up to 10,000 pF capacitive loads. The device operates across −40°C to +105°C and features internal 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 and reconstruction filters. |
| Slew Rate | 13 V/µs - Supports clean 10-Vpp output at ≥1 MHz without slewing distortion in fast-settling data acquisition paths. |
| Input Offset Voltage | 3 mV max - Limits DC error to <±3 mV in unity-gain buffer or differential amplifiers without trimming. |
| Supply Voltage Range | ±2 V to ±22 V (or 4 V to 44 V single-supply) - Allows direct interface with 5 V, 12 V, and 24 V industrial buses without level-shifting. |
| Input Common-Mode Range | Includes VCC− (ground) - Permits single-supply operation with ground-referenced sensors (e.g., thermocouples, strain gauges). |
| Output Short-Circuit Protection | Unlimited duration at ≤25°C - Ensures robustness in motor driver feedback or actuator interface circuits prone to transient faults. |
| Total Harmonic Distortion | 0.02% at 10 kHz - Meets audio-grade and precision analog front-end requirements for 12-bit+ resolution systems. |
Pinout & Package
Dual SOIC-8 (D package) surface-mount package with 1.27 mm pitch, JEDEC MS-012 compliant, rated for −40°C to +105°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of first amplifier channel; capable of ±80 mA sink/source, −14.7 V to +14 V swing at ±15 V supplies. |
| 2 | 1IN− | Inverting input of first channel; high-impedance Darlington node (150 MΩ), supports ground-referenced feedback networks. |
| 3 | 1IN+ | Non-inverting input of first channel; identical impedance and offset specs as 1IN−, enables true differential input operation. |
| 4 | VCC−/GND | Negative supply or ground reference; common return for both channels and bias network; must be low-impedance. |
| 5 | 2IN+ | Non-inverting input of second channel; electrically isolated but thermally coupled to first channel for matched drift. |
| 6 | 2IN− | Inverting input of second channel; shares same input stage architecture and noise performance (32 nV/√Hz) as 1IN−. |
| 7 | 2OUT | Output of second amplifier channel; fully independent, with same drive strength and settling behavior as 1OUT. |
| 8 | VCC+ | Positive supply rail; supports up to ±22 V; decoupling capacitor required within 1 cm for stability with >100 pF loads. |
Key Features
| Feature | Design Value |
|---|---|
| Wide single-supply operation (4 V to 44 V) | Enables direct integration into 5 V microcontroller I/O rails, 12 V automotive subsystems, and 24 V PLC analog modules without external regulators. |
| Input common-mode range includes VCC− | Eliminates need for level-shifting circuitry when interfacing with ground-referenced transducers or current-sense shunts. |
| 10,000 pF capacitive load drive capability | Permits direct connection to long cables or LCD bias networks without external isolation resistors or compensation. |
| Low THD (0.02%) at 10 kHz | Preserves signal fidelity in audio preamplifiers, ultrasonic receiver chains, and high-resolution ADC driver stages. |
| Industrial temperature range (−40°C to +105°C) | Validated for under-hood automotive, factory-floor automation, and outdoor telecom equipment without derating. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Programmable Logic Controller (PLC) Analog Input Module |
|---|---|
Use Scenario: Amplifying low-level signals from oxygen sensors and knock sensors operating near chassis ground. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with one channel for sensor buffering and the other for reference voltage conditioning. Use Value: Input common-mode range including VCC− allows direct ground-referenced sensing; 13 V/µs slew rate preserves transient fidelity during rapid combustion events. |
Use Scenario: Signal conditioning for 4–20 mA current loop inputs in DIN-rail mounted I/O modules. IC Role / Device Role / Timing Role: Precision current-to-voltage converter and filter stage preceding SAR ADC sampling. Use Value: 3 mV max input offset ensures ≤0.015% full-scale error in 16-bit measurement systems; 4.5 MHz GBW supports anti-aliasing at 100 kHz sampling rates. |
| Medical Patient Monitoring Front-End | Test & Measurement Equipment Active Filter Bank |
Use Scenario: Biopotential signal amplification (ECG, EMG) with DC-coupled input and high CMRR requirement. IC Role / Device Role / Timing Role: First-stage differential amplifier with matched dual topology minimizing inter-channel crosstalk. Use Value: 120 dB channel separation and 97 dB CMRR suppress power-line interference; 0.02% THD preserves waveform morphology for arrhythmia detection. |
Use Scenario: Configurable low-pass/high-pass filter sections in benchtop spectrum analyzers and signal generators. IC Role / Device Role / Timing Role: Unity-gain stable, high-slew-rate op-amp in multiple-pole active filter topologies (e.g., Sallen-Key, MFB). Use Value: 60° phase margin ensures monotonic step response; 10,000 pF drive capability accommodates switched-capacitor tuning elements without oscillation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL34072AD | Same pinout and architecture, but rated only for 0°C to 70°C commercial temperature range; lower max supply (±18 V vs ±22 V). | Not qualified for under-hood automotive or industrial ambient environments exceeding 70°C. | Select TL34072AD only for cost-sensitive consumer or lab equipment where extended temperature is unnecessary. |
| OPA2340UA | Rail-to-rail input/output CMOS op-amp; lower supply current (0.8 mA/ch vs 4.6 mA/ch); higher input impedance (>10¹² Ω); narrower GBW (5.5 MHz). | Lacks output short-circuit protection and high-voltage tolerance; unsuitable for 24 V industrial interfaces or fault-prone sensor lines. | Choose OPA2340UA when ultra-low power and rail-to-rail output swing are critical, and supply voltage stays ≤5.5 V. |
Compared with TL34072AD, TL33072AD adds −40°C to +105°C operation and ±22 V supply tolerance for harsh environments; compared with OPA2340UA, it trades power efficiency for ruggedness, drive strength, and fault resilience in industrial analog signal paths.
Availability
TL33072AD is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC analog input modules, and medical biopotential front-ends requiring stable component supply across extended temperature and voltage ranges.
Supply support for TL33072AD 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, embedded processing, and digital signal technologies, with over 90 years of innovation in high-reliability analog components.
The TL3307x series belongs to TI's industrial-grade bipolar op-amp portfolio, engineered specifically for demanding signal conditioning in automotive, factory automation, and infrastructure systems operating across −40°C to +105°C.
FAQ
What is the maximum supply voltage rating for TL33072AD?
The TL33072AD supports a maximum supply voltage of ±22 V (or 44 V total across VCC+ and VCC−), as specified in its Absolute Maximum Ratings table. Operation beyond this risks permanent damage. For reliable long-term use, TI recommends staying within ±20 V under continuous load conditions per the Recommended Operating Conditions.
Does TL33072AD support true single-supply operation with input referenced to ground?
Yes, TL33072AD supports true single-supply operation because its input common-mode voltage range explicitly includes VCC− (ground), allowing both inputs to operate at 0 V when VCC− = 0 V. This enables direct interfacing with ground-referenced sensors without level-shifting circuitry.
What is the typical input offset voltage of TL33072AD at room temperature?
The typical input offset voltage of TL33072AD at 25°C is 0.5 mV, with a maximum guaranteed value of 3 mV across the full −40°C to +105°C operating range. This specification applies to the "A" grade (TL33072AD), which denotes prime performance binning.
Can TL33072AD drive heavy capacitive loads without oscillation?
Yes, TL33072AD is characterized to drive up to 10,000 pF capacitive loads stably, as confirmed in its Electrical Characteristics table. Stability is maintained due to internal compensation and 60° phase margin at no load, though layout best practices (short traces, local bypassing) remain essential for robust performance.
Is TL33072AD pin-compatible with other members of the TL3x07x family?
Yes, TL33072AD is pin-compatible with all dual variants in the TL3x07x family-including TL34072AD and TL35072AD-in the same SOIC-8 (D) package. This allows drop-in replacement across temperature grades while preserving PCB layout and schematic connectivity.
TL33072AD 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:
- -
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -55°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL33072AD FAQ
1.How can I place an order for TL33072AD through Aetrix?
Please submit a Request for Quotation (RFQ) for TL33072AD 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 TL33072AD reliable?
The price and inventory of TL33072AD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL33072AD is usually 5 days.
3.What payment methods are accepted for TL33072AD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL33072AD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL33072AD?
TL33072AD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL33072AD 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 TL33072AD?
For technical support, including TL33072AD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL33072AD requirements.
6.How does Aetrix verify that TL33072AD is sourced from the original manufacturer or authorized distributors?
All TL33072AD 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 TL33072AD meets industry standards.
7.What is the process for return or replacement of TL33072AD?
All TL33072AD units undergo pre-shipment inspection (PSI). If there is an issue with TL33072AD, 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 TL33072AD part is unused and in its original packaging.
Return procedure for TL33072AD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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