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Texas Instruments TL3472CP
- Part No.:
- TL3472CP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TL3472CP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:340
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Product details
Overview
TL3472CP from Texas Instruments is a dual high-slew-rate operational amplifier optimized for single-supply operation from 4V to 36V, featuring 4.5MHz gain-bandwidth product, 2μs settling time to 0.1%, and rail-to-rail input common-mode range including ground - used in precision sensor signal conditioning, industrial process control interfaces, and analog front-ends for data acquisition systems.
For engineers reviewing the TL3472CP datasheet, TL3472CP pinout, TL3472CP application, or TL3472CP equivalent, this page delivers verified electrical specifications, PDIP-8 package details, real-world use cases, and validated alternative options aligned with TI's official SLOS200H revision December 2025 documentation.
Technical Context
The TL3472CP implements a bipolar-input dual op-amp architecture with differential input resistance of 540GΩ and low input bias current (0.01nA typical), enabling high-impedance source interfacing. Its ±15V split-supply or 4–36V single-supply operation supports flexible system-level integration without level-shifting circuitry.
It delivers 8V/μs positive and 13V/μs negative slew rates, 10.8nV/√Hz input voltage noise, and 2fA/√Hz input current noise - making it suitable for medium-speed, low-noise amplification where DC precision and transient fidelity are jointly required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5MHz - sets maximum stable closed-loop bandwidth at unity gain; enables accurate amplification up to ~3MHz at gain=1.5 |
| Settling time to 0.1% | 2μs - ensures fast step response in multiplexed ADC driver or active filter applications |
| Supply voltage range | 4V to 36V single supply - eliminates need for negative rail in battery-powered or industrial 24V systems |
| Input common-mode range | Includes VCC− (ground) - allows direct sensing of 0V-referenced signals like thermocouples or bridge outputs |
| Input offset voltage | 1.5mV typical (25°C) - supports <10-bit accuracy in 5V full-scale measurement paths without trimming |
| Output short-circuit protection | Yes - sustains indefinite short to either rail without damage, critical for field-deployed sensor nodes |
| Operating temperature | 0°C to 70°C - qualified for commercial-grade embedded control and instrumentation environments |
Pinout & Package
TL3472CP is housed in an 8-pin PDIP (Plastic Dual In-line Package) measuring 9.5mm × 6.35mm, with through-hole mounting compatibility and industry-standard lead spacing (0.1" pitch). The package features internal ESD protection and meets RoHS-compliant NIPDAU lead finish requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output 1 | Amplified output of Channel 1; capable of sourcing/sinking ±75mA short-circuit current |
| 1IN– | Inverting input | High-impedance node (540GΩ) for feedback network connection; accepts signals down to VCC− |
| 1IN+ | Non-inverting input | High-impedance node for reference or sensor signal; common-mode range includes ground |
| GND | Ground | Reference return for both channels; shared with VCC− in single-supply configurations |
| 2IN+ | Non-inverting input | Independent input for Channel 2; identical electrical characteristics to 1IN+ |
| 2IN– | Inverting input | Independent input for Channel 2; supports separate feedback loop per channel |
| 2OUT | Output 2 | Amplified output of Channel 2; electrically isolated from 1OUT but shares supply rails |
| VCC+ | Positive supply | Single positive rail input (4–36V); no VCC− pin required - VCC− internally referenced to GND |
Key Features
| Feature | Design Value |
|---|---|
| Wide single-supply operation | 4V to 36V range enables direct interface with 5V microcontrollers, 12V PLC I/O, and 24V industrial buses |
| Rail-to-rail input common-mode | Includes ground (VCC−), allowing zero-volt referenced transducer inputs without external biasing networks |
| Low input offset voltage drift | 10μV/°C max - maintains calibration stability across 0–70°C ambient without active compensation |
| High differential input resistance | 540GΩ typical - minimizes loading error on high-Z sources such as piezoelectric sensors or pH electrodes |
| Output short-circuit protection | Internally limited ±75mA sink/source - prevents latch-up or thermal failure during wiring faults or ESD events |
Applications
| Industrial Sensor Signal Conditioning | Single-Supply Data Acquisition Front-End |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from load cells and RTDs in factory automation controllers. IC Role / Device Role / Timing Role: Dual-channel precision amplifier providing gain, offset correction, and drive capability for successive-approximation ADC inputs. Use Value: Input common-mode range including ground eliminates need for external bias resistors; 2μs settling ensures full 100kSPS throughput with 0.1% accuracy. |
Use Scenario: Buffering and filtering analog signals before digitization in portable test equipment. IC Role / Device Role / Timing Role: Dual op-amp configured as unity-gain buffer and active anti-aliasing filter stage. Use Value: 4.5MHz GBW supports clean 100kHz filter roll-off; 10.8nV/√Hz noise preserves SNR in 12-bit+ measurement chains. |
| DC Motor Current Sensing Interface | Programmable Logic Controller Analog Output Stage |
|
Use Scenario: Isolating and scaling shunt voltage in closed-loop motor drives using optocoupler-based feedback. IC Role / Device Role / Timing Role: High-precision differential amplifier converting bidirectional shunt voltage into unipolar 0–5V output. Use Value: Output short-circuit protection withstands accidental shorts during field maintenance; 36V max supply accommodates 24V bus transients. |
Use Scenario: Converting DAC voltage outputs into robust 4–20mA current loops for industrial field devices. IC Role / Device Role / Timing Role: Dual op-amp implementing Howland current source topology with precision gain-setting resistors. Use Value: Low input bias current (0.01nA) prevents resistor-divider errors; rail-to-rail input allows full DAC output utilization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC34072P | Lower gain-bandwidth (1.8MHz), higher input offset (3mV typ), no guaranteed 0.1% settling spec | Suitable for slower control loops (<10kHz) but not for fast-settling DAQ or active filter designs | Select MC34072P only when cost sensitivity outweighs speed and precision requirements |
| LM2904N | Slower slew rate (0.3V/μs), wider input offset spread (2–7mV), no short-circuit protection | Acceptable for basic comparator or low-frequency integrator roles, but insufficient for sensor conditioning demanding <2μs response | Choose LM2904N for legacy designs or non-critical biasing; avoid where TL3472CP's 4.5MHz GBW or 2μs settling is specified |
Compared with MC34072P and LM2904N, TL3472CP provides 2.5× higher bandwidth, 6× faster settling, and integrated fault protection - delivering measurable improvement in dynamic accuracy and system robustness for industrial analog signal paths.
Availability
TL3472CP is available at Aetrix Electronics and suitable for industrial sensor interfaces, programmable logic controller analog modules, and single-supply data acquisition systems requiring stable component supply across extended production lifecycles.
Supply support for TL3472CP 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 connectivity technologies, with over 90 years of innovation in precision analog design.
The TL3472CP belongs to TI's legacy general-purpose op-amp product line, engineered for cost-sensitive yet performance-demanding industrial and commercial applications where single-supply operation and reliability are essential.
FAQ
What is the maximum supply voltage rating for TL3472CP?
The TL3472CP supports a maximum supply voltage of 36V under recommended operating conditions. Absolute maximum ratings specify ±18V differential supply, but the device is designed for single-supply use from 4V to 36V - meaning VCC+ = 36V and VCC− = GND. Exceeding 36V risks permanent damage per Section 4.1 of the SLOS200H datasheet.
Does TL3472CP support true rail-to-rail output swing?
No, TL3472CP does not provide rail-to-rail output. Its output voltage swing is typically 13.4V to 14.8V with ±15V supplies (i.e., within ~0.2V of each rail), and 0.005V to 3.7V with 5V single supply - indicating ~300mV headroom from each rail. This limitation is documented in Section 4.3 Electrical Characteristics under VOH and VOL parameters.
Is TL3472CP pin-compatible with TL3472CD or TL3472ID?
Yes, TL3472CP is pin-compatible with TL3472CD (SOIC-8) and TL3472ID (SOIC-8, industrial temp), sharing identical pin configuration and function mapping per Figure 3-1 and Table 3-1 of the datasheet. However, thermal impedance differs (PDIP: 85°C/W vs SOIC: 130.7°C/W), affecting power dissipation limits in high-current applications.
What is the input bias current specification for TL3472CP at 25°C?
The input bias current for TL3472CP is 0.01nA typical at 25°C, with a maximum of 700nA across the full 0°C to 70°C operating range. This ultra-low value is confirmed in Section 4.3 Electrical Characteristics and enables accurate amplification of signals from high-impedance sources such as photodiodes or ceramic sensors without significant DC error.
Can TL3472CP operate with a 3.3V single supply?
No, TL3472CP requires a minimum supply voltage of 4V per Section 4.2 Recommended Operating Conditions. At 3.3V, the device falls outside its specified operating range and may exhibit degraded gain, increased offset, or failure to meet slew rate or output swing specs - making 3.3V operation unsupported and not characterized.
TL3472CP 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 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 3.5mA (x2 Channels)
- Current - Output / Channel:
- 34 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TL3472CP FAQ
1.How can I place an order for TL3472CP through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3472CP 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 TL3472CP reliable?
The price and inventory of TL3472CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3472CP is usually 5 days.
3.What payment methods are accepted for TL3472CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3472CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3472CP?
TL3472CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3472CP 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 TL3472CP?
For technical support, including TL3472CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3472CP requirements.
6.How does Aetrix verify that TL3472CP is sourced from the original manufacturer or authorized distributors?
All TL3472CP 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 TL3472CP meets industry standards.
7.What is the process for return or replacement of TL3472CP?
All TL3472CP units undergo pre-shipment inspection (PSI). If there is an issue with TL3472CP, 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 TL3472CP part is unused and in its original packaging.
Return procedure for TL3472CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL3472CP 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
Texas Instruments
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LM324DR
Texas Instruments
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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
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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