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Texas Instruments TL3474IPW
- Part No.:
- TL3474IPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TL3474IPW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,647
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Product details
Overview
TL3474IPW from Texas Instruments is a quad, high-slew-rate, single-supply operational amplifier in a 14-pin TSSOP package. It delivers 4.5 MHz gain-bandwidth, 10 V/μs positive slew rate, and operates from 4 V to 36 V with rail-to-rail input common-mode range including ground. It is specified for industrial temperature range (−40°C to +105°C) and used in ADC driver and low-side current sensing circuits.
For engineers reviewing the TL3474IPW datasheet, TL3474IPW pinout, TL3474IPW application, or TL3474IPW equivalent, key selection criteria include single-supply operation down to 4 V, guaranteed −40°C to +105°C performance, 3 mV max input offset voltage (A-grade), output short-circuit protection, and compatibility with multiplexed data-acquisition systems requiring four independent amplifiers.
Technical Context
The TL3474IPW implements a bipolar-input, internally compensated op-amp architecture optimized for wide single-supply operation. Its input stage includes PNP transistors enabling common-mode voltage down to VCC− (ground), while the output stage provides ±80 mA short-circuit current capability and rail-to-rail swing under load.
It features 540 GΩ differential input resistance, 10 pF input capacitance, and 10.8 nV/√Hz input voltage noise at 1 kHz. The device exhibits 70° phase margin with 2 kΩ load and no external capacitance, and maintains stability with up to 300 pF capacitive load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5 MHz - supports stable closed-loop gain ≥10 at 450 kHz, suitable for anti-aliasing filters and signal conditioning before SAR ADCs. |
| Positive slew rate | 10 V/μs - enables accurate reproduction of fast-rising signals (e.g., pulse-width modulated sensor outputs) without distortion. |
| Input offset voltage (max) | 3 mV - ensures ≤0.06% full-scale error in 5 V reference buffers and ≤30 μV error in 10 mV full-scale current-sense applications. |
| Supply voltage range | 4 V to 36 V - allows direct interface with 5 V, 12 V, and 24 V industrial rails without level-shifting or LDO pre-regulation. |
| Operating temperature | −40°C to +105°C - qualified for use in programmable logic controllers, motor drives, and outdoor instrumentation without derating. |
| Input common-mode range | Includes VCC− (ground) - permits direct sensing of low-side shunt voltages without level-shifting circuitry. |
| Output short-circuit current | ±75 mA - provides robust fault tolerance during transient overloads in test equipment and industrial I/O modules. |
Pinout & Package
TSSOP-14 (PW) package: 5.00 mm × 6.40 mm body, 0.65 mm lead pitch, 1.2 mm max height, RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output channel 1 | Amplified output of first op-amp; capable of sourcing/sinking ±75 mA into resistive or moderate capacitive loads. |
| 1IN– | Inverting input channel 1 | Differential input node for first amplifier; high-impedance (540 GΩ) PNP-based input with 10 pF capacitance. |
| 1IN+ | Non-inverting input channel 1 | Differential input node for first amplifier; shares same input structure and common-mode range as 1IN–. |
| VCC+ | Positive supply voltage | Main power rail; accepts 4 V to 36 V; total supply current per channel is 0.56 mA typical at 25°C. |
| VCC– / GND | Negative supply or ground reference | Return path for all four amplifiers; supports true single-supply operation with inputs referenced to system ground. |
| 4OUT | Output channel 4 | Amplified output of fourth op-amp; electrically identical to 1OUT and fully independent within the quad die. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Operates from 4 V to 36 V with input common-mode range extending to VCC− (ground), eliminating need for dual supplies in industrial sensors. |
| High slew rate | 10 V/μs positive slew rate ensures faithful amplification of fast transients in data-acquisition front-ends without slew-induced distortion. |
| Low input offset voltage | 3 mV maximum (A-grade) enables precision DC-coupled gain stages in 12-bit+ measurement systems without trimming. |
| Output short-circuit protection | Internally limits output current to ±75 mA, preventing latch-up or thermal runaway during accidental shorts in PLC analog outputs. |
| Quad-channel integration | Four matched amplifiers in one TSSOP-14 package reduce PCB area by ~60% versus discrete SOIC-8 solutions and improve channel-to-channel tracking. |
Applications
| Multiplexed Data-Acquisition System | Test and Measurement Equipment |
|---|---|
|
Use Scenario: Simultaneous sampling of multiple sensor channels using an analog multiplexer feeding a single high-speed ADC. IC Role / Device Role / Timing Role: Each TL3474IPW amplifier buffers and drives one sensor channel into the multiplexer; configured as unity-gain follower with low output impedance. Use Value: 4.5 MHz GBW and 10 V/μs slew rate ensure <0.01% settling error within 2.5 μs after multiplexer switching, preserving effective resolution of 16-bit ADCs. |
Use Scenario: Front-end signal conditioning in portable multimeters and benchtop oscilloscope vertical amplifiers. IC Role / Device Role / Timing Role: Configured as programmable-gain amplifier (PGA) or differential receiver to condition unknown input ranges before digitization. Use Value: 65–97 dB CMRR and 70–97 dB PSRR suppress line noise and supply ripple, enabling accurate DC measurements down to 100 μV resolution. |
| ADC Driver Amplifier | Low-Side Current Sensing |
|
Use Scenario: Driving the input of a successive-approximation register (SAR) ADC in motor control feedback loops. IC Role / Device Role / Timing Role: Acts as buffer and filter stage between isolation amplifier and ADC sample capacitor; handles kickback energy without oscillation. Use Value: 525 Ω open-loop output impedance and 50° phase margin with 300 pF load prevent ADC sampling errors caused by charge injection or ringing. |
Use Scenario: Amplifying millivolt-level voltage drops across shunt resistors placed between load and ground in 24 V industrial actuators. IC Role / Device Role / Timing Role: Non-inverting amplifier with gain of 50–100, referenced directly to system ground (VCC−). Use Value: Input common-mode range including ground eliminates level-shifter ICs, reducing BOM count and improving accuracy over temperature (±10 μV/°C drift). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL3474AIPWR | Same die, identical electrical specs, same TSSOP-14 package, but active production status and guaranteed A-grade (3 mV max VIO) vs. TL3474IPW's obsolete status. | Direct replacement where A-grade offset and long-term supply continuity are required; supports same industrial temperature range. | Select TL3474AIPWR for new designs requiring assured availability and tighter offset specification. |
| MC34074ADR | Legacy bipolar quad op-amp; 4.5 MHz GBW, but higher 5 mV max VIO, lower 6 V/μs slew rate, and only rated for 0°C to +70°C. | Suitable for commercial-grade instrumentation where extended temperature range and low offset are not critical. | Choose MC34074ADR only for cost-sensitive, non-industrial applications with relaxed accuracy and temperature requirements. |
Compared with TL3474IPW, TL3474AIPWR offers guaranteed A-grade performance and active manufacturing support, while MC34074ADR trades industrial temperature rating and precision for legacy design reuse-neither is pin-compatible with TL3474IPW due to differing marking and qualification status, though same footprint applies.
Availability
TL3474IPW is available at Aetrix Electronics and suitable for industrial automation, test equipment, and data-acquisition systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TL3474IPW 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 and embedded processing technologies, with decades of expertise in precision op-amps and industrial-grade signal-chain components.
The TL3474 family was designed for cost-sensitive, high-reliability industrial applications requiring robust single-supply operation, wide voltage range, and integrated protection-targeting PLCs, sensor interfaces, and factory automation equipment.
FAQ
What is the operating temperature range of the TL3474IPW?
The TL3474IPW is rated for operation from −40°C to +105°C, making it suitable for industrial environments such as motor control cabinets, outdoor metering, and factory-floor programmable logic controllers. This range is confirmed in the Recommended Operating Conditions table of the official TI datasheet SLVS461C, and applies specifically to the 'I' grade variant denoted in the part number TL3474IPW.
Does the TL3474IPW support true single-supply operation?
Yes, the TL3474IPW supports true single-supply operation with its input common-mode voltage range extending to VCC− (ground). This allows direct interfacing with low-side current shunts and ground-referenced sensors without level-shifting circuitry. The datasheet explicitly states this capability in both the Features and Description sections, and confirms it under Recommended Operating Conditions for VIC at VCC = 5 V.
What is the maximum supply voltage for the TL3474IPW?
The TL3474IPW has a maximum supply voltage of 36 V across VCC+ and VCC−, with absolute maximum ratings specifying ±18 V on each rail. It operates reliably from 4 V to 36 V, enabling use with standard 5 V, 12 V, and 24 V industrial power rails. This range is documented in Section 5.2 (Recommended Operating Conditions) of the TI SLVS461C datasheet.
Is the TL3474IPW pin-compatible with other TL3474 variants?
Yes, the TL3474IPW shares identical pin configuration and function mapping with all TL3474 and TL3474A variants in TSSOP-14 (PW) and SOIC-14 (D) packages, as shown in Figure 4-1 and Table 4-1 of the datasheet. Pin 1 is output of channel 1, pin 11 is VCC−/GND, and pin 14 is output of channel 4-this layout is consistent across all package types for the TL3474 family.
What are the key differences between TL3474IPW and TL3474AIPWR?
The TL3474AIPWR is the active, A-grade successor to the obsolete TL3474IPW. Both share identical pinout, package, and electrical specifications, but TL3474AIPWR guarantees ≤3 mV input offset voltage (A-grade), whereas TL3474IPW lacks grade designation in its ordering code and is marked 'Z3474'. TI's packaging addendum confirms TL3474IPW is obsolete while TL3474AIPWR remains in active production with full datasheet compliance.
TL3474IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 Channels)
- Current - Output / Channel:
- 34 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TL3474IPW FAQ
1.How can I place an order for TL3474IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3474IPW 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 TL3474IPW reliable?
The price and inventory of TL3474IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3474IPW is usually 5 days.
3.What payment methods are accepted for TL3474IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3474IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3474IPW?
TL3474IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3474IPW 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 TL3474IPW?
For technical support, including TL3474IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3474IPW requirements.
6.How does Aetrix verify that TL3474IPW is sourced from the original manufacturer or authorized distributors?
All TL3474IPW 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 TL3474IPW meets industry standards.
7.What is the process for return or replacement of TL3474IPW?
All TL3474IPW units undergo pre-shipment inspection (PSI). If there is an issue with TL3474IPW, 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 TL3474IPW part is unused and in its original packaging.
Return procedure for TL3474IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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