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Texas Instruments TL33072AP
- Part No.:
- TL33072AP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TL33072AP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,070
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Product details
Overview
TL33072AP from Texas Instruments is a dual, bipolar-input operational amplifier designed for industrial/vehicular applications requiring wide temperature operation (−40°C to 105°C), rail-to-rail input capability down to VCC− (ground in single-supply mode), 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 grade), and drives up to 10,000 pF capacitive loads - ideal for sensor front-ends and active filters in automotive engine control units.
For engineers reviewing the TL33072AP datasheet, TL33072AP pinout, TL33072AP application, or TL33072AP equivalent, key selection considerations include its −40°C to 105°C operating range, dual-channel DIP-8 or SOIC-8 packaging, ±2 V to ±22 V supply flexibility, ground-sensing input stage, and verified output short-circuit protection per channel.
Technical Context
The TL33072AP employs a Darlington transistor input stage enabling high input resistance (150 MΩ) and low input offset voltage, paired with an all-NPN output stage that eliminates crossover distortion and supports symmetrical source/sink AC response. Its internal compensation ensures stable unity-gain operation with 60° phase margin and 12 dB gain margin under no-load conditions.
It operates from split supplies (±2 V to ±22 V) or single supplies (4 V to 44 V), with input common-mode range extending to VCC− and output swing reaching −14.7 V to +14 V (with ±15-V supplies). The device includes internal offset null pins (OFFSET N1/N2) and features excellent THD (0.02% at 10 kHz) and CMRR (97 dB typical).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 4.5 MHz - enables stable closed-loop operation up to ~400 kHz at gain = 10 without external compensation. |
| Slew Rate | 13 V/µs - supports fast transient response in pulse amplification and DAC output buffering. |
| Input Offset Voltage (max) | 3 mV - reduces DC error in precision instrumentation and low-level signal amplification. |
| Supply Voltage Range | ±2 V to ±22 V - accommodates both low-voltage portable systems and high-voltage industrial rails. |
| Operating Temperature | −40°C to 105°C - qualified for under-hood automotive and industrial control environments. |
| Capacitive Load Drive | 10,000 pF - allows direct interface with long cables, ADC input capacitors, or piezoelectric sensors without stability loss. |
| Input Common-Mode Range | Includes VCC− (ground in single-supply) - enables true single-supply operation with rail-to-rail input sensing. |
Pinout & Package
TL33072AP is available in plastic DIP-8 (P package) and SOIC-8 (D package), both with identical pinout. The device uses a dual op-amp configuration with independent offset null capability per channel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null N1 | Adjustment terminal for Channel 1 input offset voltage via external potentiometer. |
| 2 | Inverting Input (Ch1) | High-impedance differential input node for first op-amp stage. |
| 3 | Non-inverting Input (Ch1) | High-impedance differential input node referenced to VCC− (ground in single-supply). |
| 4 | VCC− / GND | Negative supply or ground reference; input common-mode extends to this pin. |
| 5 | Non-inverting Input (Ch2) | High-impedance differential input node for second op-amp stage. |
| 6 | Inverting Input (Ch2) | High-impedance differential input node for second op-amp stage. |
| 7 | Output (Ch2) | Class-AB output capable of sourcing/sinking ±80 mA with symmetrical AC response. |
| 8 | VCC+ | Positive supply rail; supports up to +22 V relative to VCC−. |
Key Features
| Feature | Design Value |
|---|---|
| Darlington input stage | Delivers 150 MΩ input resistance and <3 mV offset voltage for high-precision DC coupling. |
| All-NPN output stage | Eliminates crossover distortion and enables symmetrical ±13 V output swing with ±15-V supplies. |
| Internal offset null pins | Allows trimming of input offset to <0.5 mV in critical analog signal chains without external circuitry. |
| Output short-circuit protection | Withstands indefinite short to either rail at full temperature range without latch-up or degradation. |
| Low THD (0.02%) | Maintains audio-grade fidelity in active filter and signal reconstruction applications up to 10 kHz. |
Applications
| Automotive Engine Control Unit (ECU) Sensor Interface | Industrial Programmable Logic Controller (PLC) Analog Input Module |
|---|---|
Use Scenario: Amplifying low-level signals from oxygen (O₂), knock, or manifold absolute pressure (MAP) sensors in harsh under-hood environments. IC Role / Device Role / Timing Role: Dual-channel signal conditioner providing gain, filtering, and level-shifting before ADC sampling. Use Value: −40°C to 105°C rating ensures reliability across thermal cycles; rail-to-rail input enables direct connection to grounded sensors without level-shifting circuitry. | Use Scenario: Conditioning 4–20 mA current loop inputs and thermocouple/mV-level transducer outputs in factory automation systems. IC Role / Device Role / Timing Role: Precision dual op-amp used in I/V conversion, cold-junction compensation, and anti-aliasing filtering stages. Use Value: 3 mV max offset and 0.02% THD preserve measurement accuracy over full industrial temperature range; 10,000 pF drive supports long PCB traces to isolation barriers. |
| Medical Patient Monitoring Front-End | Test & Measurement Equipment Signal Path |
Use Scenario: Amplifying ECG, EEG, or EMG biopotential signals with high common-mode rejection and minimal DC drift. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier core (configured as difference amplifier) with offset nulling. Use Value: 97 dB CMRR and 150 MΩ input resistance minimize interference and loading effects; offset null pins enable calibration during system self-test. | Use Scenario: Building active filters, precision integrators, and waveform generators in benchtop oscilloscopes and function generators. IC Role / Device Role / Timing Role: High-slew-rate dual op-amp used in 2nd-order Sallen-Key filters and fast-settling integrator circuits. Use Value: 1.1 µs settling to 0.1% and 4.5 MHz GBW support accurate pulse shaping and harmonic generation up to 200 kHz power bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL33072P | Same pinout and architecture but standard grade (5 mV max input offset vs. 3 mV for TL33072AP). | Acceptable where tighter DC accuracy is not required; lower cost for non-critical industrial signal paths. | Select TL33072P when offset voltage tolerance >5 mV is acceptable and BOM cost optimization is prioritized. |
| MC33072DR2G | Pin-compatible ON Semiconductor dual op-amp; 4.5 MHz GBW, 12 V/µs slew rate, −40°C to 105°C, but no offset null pins. | Lacks on-chip offset adjustment; requires external trimming or calibration if sub-mV DC accuracy needed. | Choose MC33072DR2G only when offset null capability is unnecessary and second-source availability is mandatory. |
Compared with TL33072P and MC33072DR2G, the TL33072AP uniquely combines A-grade offset performance (≤3 mV), integrated offset null terminals, and verified 10,000 pF capacitive load drive - making it optimal for high-accuracy, thermally demanding dual-amplifier applications where calibration flexibility and stability are essential.
Availability
TL33072AP is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC analog input modules, and medical patient monitoring front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL33072AP 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 50 years of innovation in high-reliability analog ICs.
The TL3307x series was engineered specifically for industrial and automotive applications demanding extended temperature operation, robust input/output protection, and precision performance without JFET complexity - targeting sensor signal conditioning, motor control feedback, and power supply monitoring.
FAQ
What is the maximum supply voltage rating for TL33072AP?
The TL33072AP supports a maximum supply voltage of ±22 V across VCC+ and VCC−, or a total supply span of 44 V. Absolute maximum ratings specify VCC+ ≤ +22 V and VCC− ≥ −22 V relative to the midpoint between supplies. Operation beyond these limits risks permanent damage, and recommended operating conditions define ±2 V to ±22 V as the safe functional range. This rating applies to the TL33072AP across its full −40°C to 105°C temperature range.
Does TL33072AP support true single-supply operation with input referenced to ground?
Yes, the TL33072AP supports true single-supply operation because its input common-mode voltage range explicitly includes VCC−, which is tied to ground in single-supply configurations. With VCC− = 0 V and VCC+ = +5 V to +44 V, the input can accept signals from 0 V up to (VCC+ − 2.3 V), enabling direct interfacing with grounded sensors and microcontroller ADC references. This capability is confirmed in the "Recommended Operating Conditions" table and electrical characteristics for VCC = 5 V.
What is the purpose of the OFFSET N1 and OFFSET N2 pins on TL33072AP?
The OFFSET N1 and OFFSET N2 pins on TL33072AP provide dedicated terminals for external nulling of input offset voltage for Channel 1 and Channel 2, respectively. A 10-kΩ potentiometer is typically connected between these pins with its wiper to VCC−, allowing manual or automated trimming to reduce DC error to <0.5 mV. This feature is unique to the TL3307x family and is absent in many competing dual op-amps, making TL33072AP suitable for precision DC-coupled applications where laser-trimmed offset is insufficient.
Can TL33072AP drive heavy capacitive loads without oscillation?
Yes, the TL33072AP is characterized to drive up to 10,000 pF capacitive loads while maintaining stability, as stated in the "Features" section and verified by phase margin data (60° at CL = 0 pF; 40° at CL = 300 pF). Its internally compensated design avoids peaking or ringing even with large capacitive back-ends such as ADC input networks or long coaxial cables. For loads exceeding 10,000 pF, external isolation resistors (e.g., 10–100 Ω in series with the output) are recommended to preserve stability.
Is TL33072AP pin-compatible with other industry-standard dual op-amps?
Yes, TL33072AP is pin-compatible with the MC33072, LM358, and TL072 families in DIP-8 and SOIC-8 packages, sharing identical pin assignments for power, inputs, outputs, and offset null. However, unlike LM358 (which lacks offset null pins) and TL072 (JFET-input, higher noise), TL33072AP retains bipolar input advantages - including lower input bias current drift, higher output current (±80 mA), and guaranteed operation down to −40°C. This compatibility simplifies drop-in upgrades in existing designs requiring enhanced thermal and precision performance.
TL33072AP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- 400µA (x3 Channels)
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TL33072AP FAQ
1.How can I place an order for TL33072AP through Aetrix?
Please submit a Request for Quotation (RFQ) for TL33072AP 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 TL33072AP reliable?
The price and inventory of TL33072AP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL33072AP is usually 5 days.
3.What payment methods are accepted for TL33072AP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL33072AP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL33072AP?
TL33072AP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL33072AP 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 TL33072AP?
For technical support, including TL33072AP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL33072AP requirements.
6.How does Aetrix verify that TL33072AP is sourced from the original manufacturer or authorized distributors?
All TL33072AP 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 TL33072AP meets industry standards.
7.What is the process for return or replacement of TL33072AP?
All TL33072AP units undergo pre-shipment inspection (PSI). If there is an issue with TL33072AP, 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 TL33072AP part is unused and in its original packaging.
Return procedure for TL33072AP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL33072AP Tags
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