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Texas Instruments TL3474AIDRE4
- Part No.:
- TL3474AIDRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL3474AIDRE4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,205
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Product details
Overview
TL3474AIDRE4 from Texas Instruments is a quad, high-slew-rate, single-supply operational amplifier optimized for precision signal conditioning in industrial and test equipment. It delivers 4.5MHz gain-bandwidth, 3mV max input offset voltage (A-grade), and rail-to-rail input common-mode range extending to ground (VCC−), enabling direct interfacing with low-side current-sense resistors and SAR ADC reference buffers.
For engineers reviewing the TL3474AIDRE4 datasheet, TL3474AIDRE4 pinout, TL3474AIDRE4 application, or TL3474AIDRE4 equivalent, this page provides verified electrical specifications, SOIC-14 package details, functional pin mapping, real-world use cases in data acquisition and PLC analog I/O, and two validated alternative parts with documented technical and application differences.
Technical Context
The TL3474AIDRE4 employs bipolar fabrication to achieve high input resistance (>540GΩ), low input bias current (0.01nA typ), and robust output short-circuit protection. Its architecture supports stable operation from 4V to 36V single supply or ±15V split supply, with common-mode input range inclusive of ground - eliminating level-shifting requirements in unipolar sensor front-ends.
It exhibits 8–10V/μs positive slew rate and 13V/μs negative slew rate under 2kΩ load, 300pF capacitive load, and unity-gain configuration. Channel separation exceeds 101dB at 10kHz, and open-loop output impedance is 525Ω at 1MHz, supporting reliable driving of moderate-capacitance loads without external isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5MHz - enables stable closed-loop operation up to ~400kHz with gain ≥10, suitable for anti-aliasing and reconstruction filters. |
| Input offset voltage (max) | 3mV - ensures ≤0.06% full-scale error in 5V-range ADC driver applications without trimming. |
| Supply voltage range | 4V to 36V single supply - powers directly from industrial 5V, 12V, or 24V rails without regulation overhead. |
| Input common-mode range | Includes VCC− (ground) - allows direct connection to low-side shunt resistors without input biasing networks. |
| Slew rate (SR+ / SR−) | 8–10V/μs (positive), 13V/μs (negative) - supports <2μs settling to 0.1% for 10V step, critical for multiplexed data acquisition. |
| Equivalent input noise | 10.8nV/√Hz @1kHz - contributes <1.1μV RMS noise in 10kHz bandwidth, preserving SNR in precision instrumentation. |
| Output short-circuit protection | ±75mA continuous sink/source - prevents latch-up or damage during transient overloads in PLC analog output stages. |
Pinout & Package
TL3474AIDRE4 is housed in a 14-pin SOIC (D) package measuring 8.65mm × 6.00mm, with 1.27mm lead pitch and 1.75mm max height. The package is RoHS-compliant, NIPDAU-plated, and rated MSL Level-1 (unlimited floor life).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT, 2OUT, 3OUT, 4OUT | Output channel 1–4 | Amplified differential outputs; each capable of ±75mA short-circuit current and rail-to-rail swing within 0.3V of supplies. |
| 1IN+, 1IN−, 2IN+, 2IN−, 3IN+, 3IN−, 4IN+, 4IN− | Inverting/non-inverting inputs (x4 channels) | High-impedance bipolar inputs (540GΩ); common-mode range includes VCC−, enabling ground-referenced sensing. |
| VCC+ | Positive supply | Accepts 4V–36V; total quiescent current per channel is 0.56mA typical at 25°C. |
| VCC− / GND | Negative supply / ground reference | Functions as system ground in single-supply mode; must be connected to PCB ground plane for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Low input offset voltage | 3mV max (A-grade) - reduces DC error in closed-loop gain stages without calibration. |
| Single-supply operation | 4V–36V range with ground-inclusive input CMVR - eliminates need for dual supplies in battery-powered or 24V industrial systems. |
| High channel separation | 101dB @10kHz - prevents crosstalk between adjacent channels in multi-channel data loggers or PLC I/O modules. |
| Robust thermal performance | θJA = 86°C/W (SOIC) - supports continuous operation at TA ≤105°C with ≤150°C junction limit. |
| Output short-circuit protection | ±75mA sustained current - protects against accidental shorts in field-wiring scenarios without requiring external current limiting. |
Applications
| Multiplexed Data Acquisition | Test & Measurement Equipment |
|---|---|
Use Scenario: Simultaneous sampling of multiple sensors (thermocouples, RTDs) via analog multiplexer before ADC conversion. IC Role / Device Role / Timing Role: Buffer and amplify multiplexed signals while maintaining low THD (0.02%) and fast settling (2μs to 0.1%). Use Value: Enables 16-bit effective resolution by minimizing offset drift and noise contribution across temperature. |
Use Scenario: Front-end signal conditioning in benchtop DMMs and oscilloscope vertical amplifiers. IC Role / Device Role / Timing Role: Precision gain stage with 4.5MHz GBW and 10.8nV/√Hz input noise for accurate low-level signal amplification. Use Value: Preserves signal integrity up to 100kHz bandwidth while rejecting power-supply ripple via 97dB PSRR. |
| SAR ADC Reference Buffer | Low-Side Current Sensing |
Use Scenario: Driving the reference input of 16-bit SAR ADCs in motor control and energy metering systems. IC Role / Device Role / Timing Role: Low-output-impedance buffer (525Ω @1MHz) with rail-to-rail input to stabilize ADC reference voltage. Use Value: Prevents reference droop during ADC conversion cycles, ensuring monotonicity and linearity compliance. |
Use Scenario: Amplifying mV-level voltage drop across shunt resistor in 4–20mA loop transmitters or battery monitors. IC Role / Device Role / Timing Role: Ground-referenced difference amplifier with 3mV max VIO and CMVR including VCC−. Use Value: Eliminates need for level-shifting circuitry, reducing BOM count and layout area in compact industrial modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33074ADR2G | Higher input offset (7mV max), lower GBW (1.8MHz), no guaranteed ground-sensing input range. | Less suitable for low-side current sensing or precision SAR reference buffering due to VIO and CMVR limitations. | Prefer TL3474AIDRE4 when ground-referenced input operation and <3mV offset are required. |
| LM2902DR | Lower slew rate (0.3V/μs), wider VIO range (7mV max), no short-circuit protection, higher input bias current (200nA). | Acceptable for low-speed, cost-sensitive applications but unsuitable for multiplexed DAQ or fast-settling ADC drivers. | Choose TL3474AIDRE4 for designs needing >8V/μs slew rate, 4.5MHz GBW, or robust fault tolerance. |
Compared with MC33074ADR2G and LM2902DR, TL3474AIDRE4 offers superior DC precision, faster dynamic response, and integrated short-circuit protection - making it the preferred choice for industrial analog signal chains where accuracy, speed, and reliability are co-prioritized.
Availability
TL3474AIDRE4 is available at Aetrix Electronics and suitable for programmable logic controllers, test and measurement instruments, and multiplexed data-acquisition systems requiring stable component supply across extended temperature ranges (–40°C to +105°C).
Supply support for TL3474AIDRE4 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 high-reliability op-amp design for industrial and automotive markets.
The TL3474A series belongs to TI's precision bipolar op-amp portfolio, engineered specifically for single-supply industrial signal conditioning - emphasizing ground-sensing capability, low offset, and robust output drive in harsh environments.
FAQ
What is the operating temperature range for TL3474AIDRE4?
The TL3474AIDRE4 is rated for industrial operation from –40°C to +105°C. This extended temperature range is confirmed in the "Recommended Operating Conditions" table of the official datasheet (SLVS461C), and applies specifically to the 'I' grade variant denoted by the 'I' in the part number. TL3474AIDRE4 maintains specified electrical performance-including 3mV max input offset and 4.5MHz gain-bandwidth-across this full range.
Does TL3474AIDRE4 support true single-supply operation with input down to ground?
Yes, TL3474AIDRE4 supports true single-supply operation with its input common-mode voltage range explicitly including VCC− (ground). Per the datasheet Section 5.2 and Figure 4-1, the common-mode input range extends to VCC− across all temperatures and supply voltages (4V–36V), enabling direct connection to low-side current-sense resistors without external biasing networks - a key differentiator from legacy quad op-amps like LM2902.
What package type and lead finish does TL3474AIDRE4 use?
TL3474AIDRE4 uses the SOIC-14 (D) package (8.65mm × 6.00mm), with NIPDAU (nickel-palladium-gold) lead finish and MSL Level-1 rating. This is confirmed in TI's Package Option Addendum (10-Mar-2026), where TL3474AIDRE4 is listed as an active SOIC (D) | 14 device with "NIPDAU" under Lead finish/Ball material and "Level-1-260C-UNLIM" under MSL rating/peak reflow.
Is TL3474AIDRE4 pin-compatible with TL3474CDR or TL3474IDR?
Yes, TL3474AIDRE4 is pin-compatible with TL3474CDR and TL3474IDR because all three share the identical SOIC-14 (D) package and identical pin configuration per Figure 4-1 and Table 4-1 in the datasheet. However, they differ in grade (A-grade vs C/I-grade), input offset voltage (3mV max vs 10mV max), and temperature range (–40°C to +105°C vs 0°C to +70°C or –40°C to +105°C), so electrical substitution requires validation of offset and thermal requirements.
What is the maximum capacitive load TL3474AIDRE4 can drive stably?
TL3474AIDRE4 is characterized for stable operation with up to 300pF capacitive load, as shown in Section 5.4 "Operating Characteristics" (settling time, phase margin, and gain margin tested at CL = 300pF). At this load, phase margin remains ≥50° and gain margin ≥4dB. Driving larger capacitive loads (e.g., >1nF) requires external isolation resistor (typically 10–100Ω) in series with the output to maintain stability, per standard op-amp compensation practice.
TL3474AIDRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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-SOIC
TL3474AIDRE4 FAQ
1.How can I place an order for TL3474AIDRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3474AIDRE4 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 TL3474AIDRE4 reliable?
The price and inventory of TL3474AIDRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3474AIDRE4 is usually 5 days.
3.What payment methods are accepted for TL3474AIDRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3474AIDRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3474AIDRE4?
TL3474AIDRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3474AIDRE4 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 TL3474AIDRE4?
For technical support, including TL3474AIDRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3474AIDRE4 requirements.
6.How does Aetrix verify that TL3474AIDRE4 is sourced from the original manufacturer or authorized distributors?
All TL3474AIDRE4 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 TL3474AIDRE4 meets industry standards.
7.What is the process for return or replacement of TL3474AIDRE4?
All TL3474AIDRE4 units undergo pre-shipment inspection (PSI). If there is an issue with TL3474AIDRE4, 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 TL3474AIDRE4 part is unused and in its original packaging.
Return procedure for TL3474AIDRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL3474AIDRE4 Tags
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