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Texas Instruments TL3472IP
- Part No.:
- TL3472IP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TL3472IP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,867
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Product details
Overview
TL3472IP from Texas Instruments is a dual high-slew-rate operational amplifier optimized for single-supply operation across 4V to 36V, delivering 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 analog front-ends, and power supply monitoring circuits.
For engineers reviewing the TL3472IP datasheet, TL3472IP pinout, TL3472IP application, or TL3472IP equivalent, this page provides verified electrical specifications, validated PDIP-8 pin functions, real-world use cases in single-supply instrumentation, and confirmed alternative options with documented parameter differences.
Technical Context
The TL3472IP 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 internal compensation ensures stable unity-gain operation with 70° phase margin at no load and 50° with 300pF capacitive load.
It supports true single-supply operation via VCC+ and GND pins only, with input common-mode range extending to VCC− (ground) and output swing within 0.3V of rails under 2kΩ load - critical for 5V or 12V microcontroller-based analog acquisition systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5MHz - enables stable closed-loop gain ≥10 at 450kHz without peaking |
| Settling time (0.1%) | 2μs - supports 500ksps sampling in multiplexed ADC driver applications |
| Supply voltage range | 4V to 36V single supply - eliminates need for negative rail in PLC I/O modules |
| Input common-mode range | Includes ground (VCC−) - allows direct connection to 0–5V sensor outputs without level-shifting |
| Slew rate (positive) | 10V/μs - sustains full-scale 10V step response with <0.1% distortion at 100kHz |
| Input offset voltage | 1.0mV typical (±15V), 10mV max - enables ≤0.1% accuracy in 10V-range measurement circuits |
| Output short-circuit protection | Continuous safe operation into GND or VCC+ - prevents latch-up during transients in motor control feedback paths |
Pinout & Package
TL3472IP uses an 8-pin PDIP (Plastic Dual In-line Package) with 9.5mm × 6.35mm footprint and through-hole mounting. Pin 1 is located at the left end of the top row, identified by a notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output 1 | Amplified signal from Channel 1; drives loads up to ±80mA with short-circuit protection |
| 1IN– | Inverting input | High-impedance node (540GΩ) for feedback network connection in inverting configurations |
| 1IN+ | Non-inverting input | Accepts signals down to ground; common-mode range extends to VCC− (0V) in single-supply mode |
| GND | Ground reference | Return path for both channels; serves as VCC− in single-supply operation |
| 2IN+ | Non-inverting input | Independent input for Channel 2; shares same ground reference and supply as Channel 1 |
| 2IN– | Inverting input | Separate high-Z input for Channel 2; supports independent gain configuration per channel |
| 2OUT | Output 2 | Second independent output; electrically isolated from 1OUT but shares supply and thermal path |
| VCC+ | Positive supply | Single positive rail input (4–36V); no negative supply required when GND is used as VCC− |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Operates from 4V to 36V with inputs referenced to GND - eliminates dual-rail power design complexity |
| Rail-to-rail input common-mode | Accepts signals from GND to VCC−1.2V - enables direct interface with 0–3.3V/0–5V sensors and DACs |
| Low input bias current | 0.01nA typical - preserves accuracy in high-impedance pH probe or thermocouple amplifier circuits |
| Fast settling & high GBW | 2μs to 0.1% + 4.5MHz bandwidth - supports dynamic signal acquisition in data loggers and servo controllers |
| Output short-circuit protection | Internally limits current to ±75mA - maintains reliability in industrial environments with cable fault exposure |
Applications
| Industrial Sensor Signal Conditioning | Single-Supply Data Acquisition Front-End |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from RTDs, strain gauges, or pressure transducers in factory-floor equipment. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier core with matched gain stages and shared supply rejection. Use Value: Input common-mode range including ground allows direct sensor grounding; 1.0mV offset enables ≤0.01% full-scale error in 100mV span measurements. |
Use Scenario: Driving SAR ADC inputs in programmable logic controller (PLC) analog input modules operating from 24V DC bus. IC Role / Device Role / Timing Role: Buffered signal conditioner with fast settling to support 500ksps sampling rates and anti-alias filtering. Use Value: 2μs settling time ensures full accuracy before ADC conversion; 4.5MHz GBW supports active filter cutoffs up to 200kHz. |
| DC Power Supply Monitoring | Motor Control Current Sensing |
|
Use Scenario: Real-time monitoring of 12V/24V rail voltages and current in embedded power supplies with microcontroller supervision. IC Role / Device Role / Timing Role: Precision comparator and error amplifier in closed-loop regulation; second channel used for overvoltage flag generation. Use Value: Output swing within 0.3V of rails ensures clean logic-level signaling to MCU GPIOs; wide supply range accommodates brown-out conditions. |
Use Scenario: Isolation-free shunt-based current sensing in BLDC motor inverters, where ground-referenced sense amplification is required. IC Role / Device Role / Timing Role: High-speed differential amplifier for bidirectional current detection with fast transient response. Use Value: 10V/μs slew rate captures PWM-edge-induced current spikes; short-circuit protection prevents damage during phase shoot-through faults. |
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 | Acceptable for DC-coupled sensor buffers but unsuitable for >100kHz dynamic signal paths | Select MC34072P only when cost sensitivity outweighs bandwidth and settling requirements |
| TL072CP | JFET input (higher input impedance), lower slew rate (13V/μs), no short-circuit protection, narrower supply range (±5V to ±18V) | Requires split supply; not rated for direct 24V single-rail operation or output fault tolerance | Choose TL072CP only for low-noise audio or high-Z photodiode applications where single-supply operation is not needed |
Compared with TL3472IP, MC34072P trades bandwidth and precision for legacy compatibility, while TL072CP offers superior noise performance but lacks single-supply robustness and fault protection - making TL3472IP the optimal choice for industrial 24V embedded analog signal chains requiring reliability and speed.
Availability
TL3472IP is available at Aetrix Electronics and suitable for industrial sensor interfaces, PLC analog input modules, and DC power supply monitoring systems requiring stable component supply across extended temperature ranges (–40°C to +105°C).
Supply support for TL3472IP 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 high-reliability components.
The TL3472IP belongs to TI's general-purpose operational amplifier portfolio, designed specifically for cost-sensitive industrial and automotive-qualified signal conditioning applications requiring robust single-supply operation and fast transient response.
FAQ
What is the maximum operating temperature range for TL3472IP?
The TL3472IP is rated for operation from –40°C to +105°C, as confirmed in Section 4.2 Recommended Operating Conditions of the SLOS200H datasheet. This extended temperature grade makes TL3472IP suitable for under-hood automotive subsystems and industrial control cabinets without forced cooling.
Does TL3472IP support true single-supply operation with inputs referenced to ground?
Yes, TL3472IP supports true single-supply operation: its input common-mode voltage range explicitly includes VCC− (ground), and the datasheet confirms functionality with VCC+ = 5V and GND as the return. This eliminates level-shifting circuitry when interfacing with 0–5V sensors or microcontroller ADC references.
What is the typical input offset voltage specification for TL3472IP at room temperature?
The typical input offset voltage for TL3472IP is 1.0mV at 25°C under ±15V supply conditions, with a maximum of 12mV across the full operating temperature range (–40°C to +105°C). This value is specified in Table 4.3 Electrical Characteristics and directly impacts DC accuracy in precision amplification stages.
Can TL3472IP drive capacitive loads, and what is its stability behavior with 300pF?
TL3472IP remains stable with up to 300pF capacitive load, maintaining 50° phase margin per Section 4.4 Operating Characteristics. However, slew rate degrades slightly (SR− drops from 13V/μs to 10V/μs), and settling time increases marginally - design verification is recommended for critical timing paths.
Is TL3472IP pin-compatible with TL3472CP or TL3472CDR?
Yes, TL3472IP shares identical pinout and electrical specifications with TL3472CP (PDIP, 0–70°C) and TL3472CDR (SOIC, 0–70°C), differing only in temperature grade (–40°C to +105°C) and package type. All variants use the same functional block diagram, pin numbering, and absolute maximum ratings per the SLOS200H datasheet.
TL3472IP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- 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:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TL3472IP FAQ
1.How can I place an order for TL3472IP through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3472IP 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 TL3472IP reliable?
The price and inventory of TL3472IP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3472IP is usually 5 days.
3.What payment methods are accepted for TL3472IP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3472IP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3472IP?
TL3472IP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3472IP 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 TL3472IP?
For technical support, including TL3472IP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3472IP requirements.
6.How does Aetrix verify that TL3472IP is sourced from the original manufacturer or authorized distributors?
All TL3472IP 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 TL3472IP meets industry standards.
7.What is the process for return or replacement of TL3472IP?
All TL3472IP units undergo pre-shipment inspection (PSI). If there is an issue with TL3472IP, 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 TL3472IP part is unused and in its original packaging.
Return procedure for TL3472IP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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