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Texas Instruments TL3474ACDR
- Part No.:
- TL3474ACDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL3474ACDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,462
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Product details
Overview
TL3474ACDR from Texas Instruments is a quad, high-slew-rate, single-supply operational amplifier with 4.5MHz gain-bandwidth product, 3mV max input offset voltage (A-grade), and rail-to-rail input common-mode range extending to ground (VCC−). It operates from 4V to 36V supply and delivers ±80mA output current per channel-used in SAR ADC reference buffers, low-side current sensing, and multiplexed data-acquisition systems.
For engineers reviewing the TL3474ACDR datasheet, TL3474ACDR pinout, TL3474ACDR application, or TL3474ACDR equivalent, key selection criteria include single-supply operation down to 4V, guaranteed 3mV max VIO over temperature, 10V/μs positive slew rate, and SOIC-14 package compatibility with industrial PLC and test equipment signal conditioning stages.
Technical Context
The TL3474ACDR uses bipolar fabrication optimized for wide-input-voltage-range performance, with input stage design enabling common-mode operation down to VCC− (ground) under single-supply conditions. Its architecture supports stable unity-gain and closed-loop configurations up to 4.5MHz while maintaining phase margin ≥50° with 300pF capacitive load.
It features internal short-circuit protection, differential input resistance of 540GΩ, and low 10.8nV/√Hz input voltage noise-enabling precision DC-coupled amplification and low-distortion (0.02% THD) signal conditioning at 10kHz with 2kΩ load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5MHz - enables stable closed-loop gain up to 100× at 45kHz or unity gain at 4.5MHz |
| Input offset voltage (max) | 3mV - ensures ≤3mV DC error in precision sensor interfaces without trimming |
| Supply voltage range | 4V to 36V - supports direct connection to 5V, 12V, 24V industrial rails without regulation |
| Positive slew rate | 10V/μs - allows 10V step response within 1μs for fast-settling ADC drivers |
| Common-mode input range | VCC− to (VCC+ − 2.2V) - accepts signals at ground level in single-supply systems |
| Output short-circuit current | ±75mA - sustains fault conditions without latch-up or permanent damage |
| Input voltage noise density | 10.8nV/√Hz - limits integrated noise to ~1.4μV RMS in 10kHz bandwidth |
Pinout & Package
TL3474ACDR 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 | Output channel 1 | Amplified output of first op-amp; capable of sourcing/sinking ±75mA |
| 1IN–, 1IN+ | Inverting/non-inverting inputs (ch1) | Differential pair accepting signals from 0V to VCC+−2.2V in single-supply mode |
| VCC+ | Positive supply rail | Accepts 4V–36V; total device ICC ≤ 4.5mA per channel at 25°C |
| VCC– / GND | Negative supply or ground reference | Enables true single-supply operation; referenced as 0V in 4V–36V systems |
| 4OUT, 4IN+, 4IN– | Output and inputs (ch4) | Identical electrical specs to ch1; all four channels are fully independent |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation from 4V | Eliminates need for dual-rail supplies in battery-powered or 5V/12V embedded systems |
| Guaranteed 3mV max VIO (A-grade) | Reduces calibration overhead in 12-bit–16-bit data acquisition front-ends |
| Rail-to-rail input including ground | Supports direct interfacing to ground-referenced sensors (e.g., shunt-based current monitors) |
| Internal short-circuit protection | Permits robust operation in industrial environments with transient load faults |
| Low 10.8nV/√Hz input noise | Maintains SNR > 90dB in 10kHz audio and instrumentation signal paths |
Applications
| ADC Driver Amplifier | SAR ADC Reference Buffer |
|---|---|
Use Scenario: Driving the analog input of a 16-bit SAR ADC in a programmable logic controller with 100ksps sampling rate. IC Role / Device Role / Timing Role: Precision gain-stage amplifier with low THD (0.02%) and 10V/μs slew rate to settle 10V full-scale steps within 2μs. Use Value: Enables full 16-bit ENOB by limiting settling error to <0.5 LSB during acquisition window. | Use Scenario: Buffering the reference voltage for a 12-bit SAR ADC in an isolated sensor node powered by 5V USB. IC Role / Device Role / Timing Role: Low-noise, low-output-impedance buffer (525Ω open-loop Zo) driving 100pF+ ADC REF pin capacitance. Use Value: Prevents reference droop and maintains <0.1% reference accuracy across temperature and load variations. |
| Low-Side Current Sensing | Multiplexed Data-Acquisition System |
Use Scenario: Amplifying mV-level shunt voltage in a 24V motor control module with ground-referenced sense point. IC Role / Device Role / Timing Role: Single-supply op-amp with input common-mode range including VCC− (0V), rejecting common-mode noise on shunt. Use Value: Delivers accurate current measurement without level-shifting circuitry or negative supply generation. | Use Scenario: Signal conditioning for 8-channel thermocouple inputs in a benchtop DMM using analog multiplexing. IC Role / Device Role / Timing Role: Quad amplifier providing simultaneous gain/offset adjustment before multiplexer and ADC. Use Value: Reduces BOM count by consolidating four independent signal paths into one SOIC-14 IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC34074ADR | Same pinout, 4.5MHz GBW, but 6mV max VIO (non-A grade); higher 15V/μs slew rate | Less suitable for sub-12-bit precision systems requiring guaranteed 3mV offset | Select when cost sensitivity outweighs tight offset requirement and higher slew is beneficial |
| TL074CDR | JFET-input, 3MHz GBW, 10mV max VIO, no guaranteed ground-sensing capability | Not recommended for low-side current sensing due to limited common-mode range | Choose only for high-Z sensor interfaces where input bias current (<200pA) is critical |
Compared with MC34074ADR and TL074CDR, TL3474ACDR provides tighter offset control (3mV vs 6mV/10mV), verified ground-sensing operation, and balanced speed/noise trade-offs-making it optimal for industrial ADC front-ends requiring both precision and robustness.
Availability
TL3474ACDR is available at Aetrix Electronics and suitable for programmable logic controllers, test and measurement equipment, and multiplexed data-acquisition systems requiring stable component supply across extended temperature ranges (0°C to 70°C).
Supply support for TL3474ACDR 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TL3474A family was designed specifically for single-supply, high-precision signal conditioning in industrial automation and data acquisition-emphasizing ground-sensing capability, low offset, and rugged output drive.
FAQ
What is the maximum operating supply voltage for TL3474ACDR?
The TL3474ACDR supports a recommended operating supply voltage range of 4V to 36V across its VCC+ and VCC– pins. Absolute maximum ratings allow ±18V differential supply (36V total), but sustained operation above 36V risks permanent damage. For 24V industrial systems, TL3474ACDR operates reliably with full specification compliance and thermal margin.
Does TL3474ACDR support true single-supply operation with input signals at ground potential?
Yes, TL3474ACDR explicitly supports true single-supply operation: its input common-mode voltage range includes VCC– (ground) across the full 4V–36V supply range. This is confirmed in Section 5.2 Recommended Operating Conditions and Table 4-1 Pin Functions, where VCC–/GND is designated as a valid reference terminal enabling direct interface to ground-referenced sensors and shunts.
What is the guaranteed input offset voltage specification for TL3474ACDR?
TL3474ACDR is the A-grade version, guaranteeing a maximum input offset voltage (VIO) of 3mV over the full operating temperature range (0°C to 70°C). This is specified in Section 5.3 Electrical Characteristics under "TL3474A" column, with typical value of 1.5mV at 25°C. The 3mV limit applies under VCC = ±15V or VCC = 5V conditions with RS = 50Ω.
Can TL3474ACDR drive capacitive loads, and what is its stability behavior with 300pF?
Yes, TL3474ACDR is characterized for stability with capacitive loads: Section 5.4 Operating Characteristics specifies phase margin ≥50° and gain margin ≥4dB when driving 300pF with RL = 2kΩ. This enables direct connection to ADC input capacitance or long PCB traces without external compensation, though layout best practices (short traces, local bypassing) remain essential for optimal transient response.
Is TL3474ACDR pin-compatible with MC34074/A series op-amps?
Yes, TL3474ACDR is pin-compatible with MC34074ADR and MC33074ADR in SOIC-14 (D) package, sharing identical pin numbering, function mapping, and footprint. This is explicitly stated in the "Features" section ("Alternative to MC33074/A and MC34074/A") and validated by matching Table 4-1 pin definitions and Package Information dimensions for D-package variants.
TL3474ACDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TL3474ACDR FAQ
1.How can I place an order for TL3474ACDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3474ACDR 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 TL3474ACDR reliable?
The price and inventory of TL3474ACDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3474ACDR is usually 5 days.
3.What payment methods are accepted for TL3474ACDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3474ACDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3474ACDR?
TL3474ACDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3474ACDR 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 TL3474ACDR?
For technical support, including TL3474ACDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3474ACDR requirements.
6.How does Aetrix verify that TL3474ACDR is sourced from the original manufacturer or authorized distributors?
All TL3474ACDR 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 TL3474ACDR meets industry standards.
7.What is the process for return or replacement of TL3474ACDR?
All TL3474ACDR units undergo pre-shipment inspection (PSI). If there is an issue with TL3474ACDR, 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 TL3474ACDR part is unused and in its original packaging.
Return procedure for TL3474ACDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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