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Texas Instruments TL3474AID
- Part No.:
- TL3474AID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL3474AID.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,833
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Product details
Overview
TL3474AID 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, suited for precision ADC driver and low-side current sensing in industrial PLCs.
For engineers reviewing the TL3474AID datasheet, TL3474AID pinout, TL3474AID application, or TL3474AID equivalent, key selection criteria include its wide single-supply voltage range, guaranteed A-grade offset performance, 4-channel integration in SOIC-14, and compatibility with multiplexed data-acquisition systems requiring stable DC accuracy and fast settling.
Technical Context
The TL3474AID uses bipolar fabrication optimized for single-supply operation, with input stage design enabling common-mode voltage down to VCC− (ground) and output short-circuit protection per channel. Its architecture supports high open-loop gain (>20 V/mV), 10 V/μs positive slew rate, and 101 dB channel separation at 10 kHz.
It features low 10.8 nV/√Hz input voltage noise and 2 fA/√Hz input current noise at 1 kHz, with 540 GΩ differential input resistance and 10 pF input capacitance - characteristics critical for high-impedance sensor interfacing and SAR ADC reference buffering without signal degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5 MHz - enables stable unity-gain buffer or closed-loop gain ≥10 up to ~450 kHz |
| Input offset voltage (max) | 3 mV - ensures ≤0.03% full-scale error in 10V-range precision amplification |
| Supply voltage range | 4 V to 36 V - supports direct interface with 5V, 12V, 24V industrial rails without regulation |
| Slew rate (positive) | 10 V/μs - allows clean 10Vpp step response within 2 μs to 0.1% settling |
| Common-mode input range | VCC− to (VCC+ − 2.2 V) - accepts ground-referenced signals in single-supply configurations |
| Output short-circuit current | ±75 mA - sustains robust drive into heavy loads or fault conditions without latch-up |
| Input voltage noise density | 10.8 nV/√Hz @ 1 kHz - minimizes added noise in low-level signal conditioning paths |
Pinout & Package
TL3474AID is housed in a 14-pin SOIC (D) package measuring 8.65 mm × 6.00 mm, with 1.27 mm lead pitch and 1.75 mm maximum 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 ±75 mA |
| 1IN–, 1IN+ | Inverting/non-inverting inputs (ch1) | Differential pair accepting signals from VCC− to VCC+ − 2.2 V |
| VCC+ | Positive supply rail | Accepts 4V–36V; total device supply current ≤5.5 mA (all channels) |
| 2IN+, 2IN–, 2OUT | Inputs/outputs (ch2) | Electrically isolated channel with identical AC/DC specs as ch1 |
| 3OUT, 3IN–, 3IN+ | Inputs/outputs (ch3) | Third independent amplifier; shares VCC+/VCC− rails and thermal substrate |
| VCC– / GND | Negative supply or ground | Reference node for single-supply operation; must be tied to system ground |
| 4IN+, 4IN–, 4OUT | Inputs/outputs (ch4) | Fourth matched channel; enables 4-channel signal conditioning on one IC |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Enables direct use with 5V/12V/24V rails and ground-referenced sensors without level-shifting circuitry |
| A-grade input offset | Guaranteed ≤3 mV max ensures consistent DC accuracy across temperature (−40°C to +105°C) |
| High channel separation | 101 dB at 10 kHz prevents crosstalk between adjacent amplifiers in multi-channel data acquisition |
| Output short-circuit protection | Allows safe operation during transient overloads or PCB trace shorts without permanent damage |
| Low input bias current | 0.01 nA typical enables high-impedance source interfacing (e.g., pH electrodes, photodiodes) with minimal error |
Applications
| Multiplexed Data Acquisition | ADC Driver Amplifier |
|---|---|
Use Scenario: Simultaneous sampling of multiple analog sensors (e.g., temperature, pressure) via analog multiplexer before digitization. IC Role / Device Role / Timing Role: Quad op-amp buffers and conditions each channel independently prior to multiplexer switching. Use Value: 101 dB channel separation prevents inter-channel interference; 4.5 MHz GBW supports >100 kSPS sampling with <0.01% gain error. | Use Scenario: Driving the input of a 16-bit SAR ADC in a precision measurement system with 0–5 V input range. IC Role / Device Role / Timing Role: Unity-gain buffer isolating source impedance and providing low-impedance, fast-settling drive to ADC sample capacitor. Use Value: 10 V/μs slew rate achieves 2 μs settling to 0.1%, minimizing acquisition dead time; 3 mV offset avoids zero-scale calibration drift. |
| SAR ADC Reference Buffer | Low-Side Current Sensing |
Use Scenario: Stabilizing and distributing precision voltage reference (e.g., 2.5 V) to multiple SAR ADCs in a modular DAQ unit. IC Role / Device Role / Timing Role: Low-noise, high-PSRR buffer maintaining reference integrity under dynamic load changes. Use Value: 97 dB PSRR suppresses supply ripple; 10.8 nV/√Hz noise preserves effective resolution beyond 16 bits. | Use Scenario: Amplifying mV-level shunt voltage in motor control or power supply monitoring where sense node is at system ground potential. IC Role / Device Role / Timing Role: Single-supply inverting or non-inverting amplifier with input referenced to VCC− (ground). Use Value: Input common-mode range including ground eliminates need for level-shifting; 3 mV offset limits current measurement error to <0.1% at 100 A full scale. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL3474AIDR | Same die, identical electrical specs, SOIC-14 tape-and-reel packaging (2500 pcs/reel) | Identical functional replacement; differs only in packaging format and reel quantity | Select TL3474AIDR for automated SMT assembly requiring standard tape-and-reel delivery |
| MC33074ADR2G | Lower GBW (1.8 MHz), higher offset (7 mV max), no guaranteed A-grade spec | Less suitable for high-speed or high-accuracy ADC driving; acceptable for general-purpose signal conditioning | Choose MC33074ADR2G only when cost sensitivity outweighs bandwidth and offset requirements |
Compared with TL3474AID, TL3474AIDR offers identical performance in a production-ready tape-and-reel format, while MC33074ADR2G trades bandwidth and precision for legacy compatibility and lower cost - making TL3474AID optimal for new designs demanding 4.5 MHz GBW and ≤3 mV offset over −40°C to +105°C.
Availability
TL3474AID is available at Aetrix Electronics and suitable for industrial programmable logic controllers, test and measurement equipment, and multiplexed data-acquisition systems requiring stable component supply across extended temperature ranges.
Supply support for TL3474AID 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 signal-chain solutions.
The TL3474AID belongs to TI's TL3474 family of high-slew-rate, single-supply op-amps designed specifically for industrial automation, data acquisition, and sensor signal conditioning where ground-referenced inputs and wide supply flexibility are essential.
FAQ
What is the operating temperature range for TL3474AID?
The TL3474AID is rated for operation from −40°C to +105°C, qualifying it for industrial and automotive under-hood environments. This extended temperature grade is confirmed in TI's packaging addendum, where TL3474AID is explicitly listed with "Op temp (°C): −40 to 105" and part marking "TL3474AI". All electrical specifications in the datasheet apply across this full range unless otherwise noted.
Does TL3474AID support true rail-to-rail input or output?
TL3474AID supports rail-to-rail input common-mode range down to VCC− (ground), but its output swing is not rail-to-rail: at VCC+ = 5V and RL = 2kΩ, VOH = 3.7 V (min) and VOL = 0.005 V (typ), leaving ~1.3 V headroom at the positive rail. This behavior is documented in Section 5.3 Electrical Characteristics and applies across the full −40°C to +105°C range.
Is TL3474AID pin-compatible with MC34074/A series devices?
Yes - TL3474AID is explicitly positioned as an alternative to MC34074/A and MC33074/A in TI's official documentation, sharing identical SOIC-14 pinout, terminal functions, and supply configuration. Pin mapping (e.g., VCC+, VCC−/GND, all IN+/IN−/OUT assignments) matches exactly, enabling drop-in replacement in existing layouts designed for those legacy parts.
What is the maximum supply voltage rating for TL3474AID?
The absolute maximum supply voltage for TL3474AID is ±18 V (i.e., VCC+ ≤ +18 V, VCC− ≥ −18 V), per Section 5.1 Absolute Maximum Ratings. However, the recommended operating range is 4 V to 36 V total supply (VCC+ − VCC−), meaning it can operate with single supplies up to 36 V (e.g., VCC+ = 36 V, VCC− = 0 V) or split supplies such as ±15 V - all within safe, specified limits.
How does TL3474AID differ from the standard TL3474C grade?
TL3474AID is the industrial-grade (−40°C to +105°C) A-version with tighter input offset voltage (≤3 mV max vs. ≤10 mV for standard grade) and improved input bias current (0.01 nA typ vs. 0.01–500 nA). It also uses TI's newer "RFB" die revision, offering lower noise (10.8 nV/√Hz vs. 49 nV/√Hz in old die) and updated output impedance (525 Ω vs. 20 Ω), as detailed in Section 5.6 Old Die to New Die Transition.
TL3474AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-SOIC
TL3474AID FAQ
1.How can I place an order for TL3474AID through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3474AID 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 TL3474AID reliable?
The price and inventory of TL3474AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3474AID is usually 5 days.
3.What payment methods are accepted for TL3474AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3474AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3474AID?
TL3474AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3474AID 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 TL3474AID?
For technical support, including TL3474AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3474AID requirements.
6.How does Aetrix verify that TL3474AID is sourced from the original manufacturer or authorized distributors?
All TL3474AID 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 TL3474AID meets industry standards.
7.What is the process for return or replacement of TL3474AID?
All TL3474AID units undergo pre-shipment inspection (PSI). If there is an issue with TL3474AID, 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 TL3474AID part is unused and in its original packaging.
Return procedure for TL3474AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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