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Texas Instruments TL33072ADR
- Part No.:
- TL33072ADR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL33072ADR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:40,000
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Product details
Overview
TL33072ADR from Texas Instruments is a dual, bipolar-input operational amplifier designed for industrial and automotive applications requiring wide temperature operation (−40°C to 105°C), rail-to-rail input capability including ground, and high-speed precision signal conditioning. It delivers 4.5 MHz gain-bandwidth product, 13 V/µs slew rate, 1.1 µs settling time to 0.1%, low 3 mV max input offset voltage (A-suffix), and drives up to 10,000 pF capacitive loads.
For engineers reviewing the TL33072ADR datasheet, TL33072ADR pinout, TL33072ADR application, or TL33072ADR equivalent, this device is selected for single-supply sensor interfaces, active filters in harsh environments, and precision analog front-ends where input common-mode range down to VCC− and output swing near rails are critical design requirements.
Technical Context
The TL33072ADR uses a Darlington transistor input stage enabling high input resistance (150 MΩ) and low input offset voltage, while its all-NPN output stage eliminates crossover distortion and supports symmetrical sourcing/sinking with large output voltage swing (−14.7 V to 14 V at ±15 V supplies). Its 60° phase margin and 12 dB gain margin ensure stable unity-gain and closed-loop configurations without external compensation.
Designed for robust single-supply operation from 4 V to 44 V total supply, the device features input common-mode range extending to VCC− (ground in single-supply mode), output short-circuit protection, and low 0.02% THD at 10 kHz - making it suitable for audio preamplification and high-fidelity signal paths in extended-temperature systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5 MHz - enables stable closed-loop operation up to ~400 kHz with gain of 10, supporting medium-speed filtering and amplification. |
| Slew rate | 13 V/µs - ensures faithful reproduction of fast transients in pulse amplification and DAC output buffering. |
| Input offset voltage (max) | 3 mV - reduces DC error in precision instrumentation and sensor signal chains without trimming. |
| Supply voltage range | ±2 V to ±22 V (or 4 V to 44 V single-supply) - supports direct interfacing with 5 V, 12 V, and 24 V industrial rails. |
| Input common-mode range | Includes VCC− (ground) - allows direct connection of unipolar sensors (e.g., thermocouples, current shunts) without level-shifting circuitry. |
| Capacitive load drive | 10,000 pF - enables direct driving of long cables, ADC input capacitors, or piezoelectric transducers without isolation resistors. |
| Settling time (0.1%) | 1.1 µs - meets timing budgets in multiplexed data acquisition systems sampling at ≥500 kSPS per channel. |
Pinout & Package
TL33072ADR is housed in an 8-pin SOIC (D) package with standard dual op-amp pinout. The device is not internally connected on pins 1 and 8 (offset null terminals), which may be left unconnected or used for fine offset adjustment if required by system-level calibration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null N1 | Adjustment terminal for input offset voltage trimming; no internal connection required for standard operation. |
| 2 | Inverting Input (Ch 1) | High-impedance differential input node for first amplifier channel; accepts signals down to VCC−. |
| 3 | Non-inverting Input (Ch 1) | High-impedance differential input node for first amplifier channel; common-mode range includes ground. |
| 4 | VCC− / GND | Negative supply rail or ground reference; defines lower bound of input common-mode and output swing range. |
| 5 | Non-inverting Input (Ch 2) | High-impedance differential input node for second amplifier channel; identical electrical characteristics to Pin 3. |
| 6 | Inverting Input (Ch 2) | High-impedance differential input node for second amplifier channel; identical electrical characteristics to Pin 2. |
| 7 | Output (Ch 2) | Low-output-impedance voltage source capable of sourcing/sinking ±80 mA and driving 10 nF loads. |
| 8 | Offset Null N2 | Adjustment terminal for input offset voltage trimming; no internal connection required for standard operation. |
Key Features
| Feature | Design Value |
|---|---|
| Darlington input stage | Delivers 150 MΩ input resistance and ≤3 mV offset voltage, reducing loading on high-impedance sensors like pH electrodes. |
| All-NPN output stage | Eliminates crossover distortion and provides symmetrical AC frequency response, critical for audio and precision waveform generation. |
| Single-supply compatible input range | Common-mode voltage extends to VCC−, enabling direct interface with 0 V–5 V sensor outputs without level shifters. |
| Output short-circuit protection | Withstands indefinite short to either rail, enhancing reliability in motor control feedback or industrial I/O modules. |
| Stable with capacitive loads up to 10 nF | Permits direct connection to ADC sample-and-hold inputs or long PCB traces without stability-compromising series resistors. |
Applications
| Industrial Sensor Interface | Automotive Cabin Control |
|---|---|
|
Use Scenario: Amplifying low-level output from RTD or thermistor-based temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with offset-null capability and rail-to-rail input. Use Value: Enables direct 0–5 V scaling of sensor signals across −40°C to 105°C ambient, eliminating external biasing components and reducing BOM count. |
Use Scenario: Signal conditioning for HVAC blower motor current sensing and cabin air quality sensor outputs in vehicle ECUs. IC Role / Device Role / Timing Role: Dual-channel buffer and filter driver operating from 12 V battery rail with ground-referenced inputs. Use Value: Supports AEC-Q200-aligned designs via −40°C to 105°C rating and 44 V absolute max supply, reducing need for external protection circuitry. |
| Medical Patient Monitor Front-End | Test & Measurement Active Filter |
|
Use Scenario: Low-noise amplification of ECG electrode signals prior to 24-bit delta-sigma ADC conversion. IC Role / Device Role / Timing Role: First-stage gain block with 32 nV/√Hz input noise and 0.02% THD at 10 kHz. Use Value: Preserves signal integrity in biopotential measurement without introducing harmonic distortion or DC drift over temperature. |
Use Scenario: Implementing 4th-order Sallen-Key low-pass filters in portable oscilloscope analog channels. IC Role / Device Role / Timing Role: Unity-gain stable, high-slew-rate op-amp configured as 2-pole sections with minimal phase shift. Use Value: Achieves flat group delay and <1.1 µs settling to 0.1%, meeting bandwidth and transient fidelity requirements for 10 MHz scope front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL34072DR | Same pinout and architecture but rated only for 0°C to 70°C; lower cost; no industrial temperature qualification. | Limited to commercial-grade equipment; unsuitable for under-hood or outdoor industrial enclosures. | Select TL34072DR only when ambient temperature stays within 0°C–70°C and cost sensitivity outweighs environmental robustness. |
| OPA2333AIDR | CMOS input (0.2 pA bias), zero-drift architecture, 0.02 µV/°C offset drift vs. TL33072ADR's 10 µV/°C; higher price; 36 V max supply. | Better for ultra-low-drift DC applications (e.g., precision weigh scales); less suited for high-capacitance drive or 44 V operation. | Choose OPA2333AIDR when sub-µV offset drift dominates design requirements; retain TL33072ADR for 44 V tolerance and 10 nF drive capability. |
Compared with TL34072DR and OPA2333AIDR, the TL33072ADR uniquely balances industrial temperature range, bipolar input ruggedness, high-voltage operation, and capacitive load drive - making it optimal for cost-sensitive, high-reliability analog signal paths where CMOS input leakage or zero-drift architecture is not mandatory.
Availability
TL33072ADR is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive cabin control modules, and medical patient monitor front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL33072ADR 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, longevity, and broad application support.
The TL3307x series was developed specifically for industrial and automotive signal conditioning, emphasizing wide temperature operation, single-supply compatibility, and robustness against capacitive loading and supply transients.
FAQ
What is the operating temperature range for TL33072ADR?
The TL33072ADR is specified for industrial/vehicular operation from −40°C to 105°C. This range is validated per the datasheet's recommended operating conditions and absolute maximum ratings, ensuring consistent performance in engine compartments, factory floors, and outdoor control cabinets without derating or thermal management overhead.
Does TL33072ADR support true single-supply operation with input signals at ground potential?
Yes, the TL33072ADR supports true single-supply operation because its input common-mode voltage range includes VCC− (i.e., ground when VCC− = 0 V). This allows direct connection of 0 V–reference sensors such as thermistors or bridge circuits without external biasing networks or level-shifting circuitry.
Can TL33072ADR drive a 10,000 pF load without instability?
Yes, the TL33072ADR is characterized to drive up to 10,000 pF capacitive loads while maintaining ≥40° phase margin (at CL = 300 pF) and stable step response. This capability is confirmed in the datasheet's operating characteristics table and enables direct interface with ADC input capacitors, long cables, and piezoelectric elements.
What is the maximum supply voltage for TL33072ADR?
The TL33072ADR has an absolute maximum supply voltage of ±22 V (44 V total), with recommended operation from ±2 V to ±22 V or 4 V to 44 V single-supply. Exceeding ±22 V risks permanent damage, and operation above 44 V total violates absolute maximum ratings regardless of duty cycle.
Is TL33072ADR pin-compatible with other members of the TL3x07x family?
Yes, TL33072ADR shares identical 8-pin SOIC (D) pinout with TL34072DR and TL35072DR, and is also pin-compatible with MC33072, MC34072, and MC35072 series devices. This enables drop-in replacement across temperature grades without PCB layout changes.
TL33072ADR 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
TL33072ADR FAQ
1.How can I place an order for TL33072ADR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL33072ADR 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 TL33072ADR reliable?
The price and inventory of TL33072ADR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL33072ADR is usually 5 days.
3.What payment methods are accepted for TL33072ADR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL33072ADR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL33072ADR?
TL33072ADR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL33072ADR 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 TL33072ADR?
For technical support, including TL33072ADR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL33072ADR requirements.
6.How does Aetrix verify that TL33072ADR is sourced from the original manufacturer or authorized distributors?
All TL33072ADR 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 TL33072ADR meets industry standards.
7.What is the process for return or replacement of TL33072ADR?
All TL33072ADR units undergo pre-shipment inspection (PSI). If there is an issue with TL33072ADR, 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 TL33072ADR part is unused and in its original packaging.
Return procedure for TL33072ADR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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