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Texas Instruments TL3474ID
- Part No.:
- TL3474ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL3474ID.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,193
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Product details
Overview
TL3474ID from Texas Instruments is a quad, high-slew-rate, single-supply operational amplifier optimized for industrial temperature range (−40°C to +105°C) operation in SOIC-14 package. It delivers 4.5MHz gain-bandwidth product, 3mV max input offset voltage (A-grade), and rail-to-rail input common-mode range including ground - enabling precision signal conditioning in low-side current sensing and ADC driver applications.
For engineers reviewing the TL3474ID datasheet, TL3474ID pinout, TL3474ID application, or TL3474ID equivalent, this page provides verified electrical specifications, validated SOIC-14 pin functions, real-world use cases in multiplexed data acquisition and programmable logic controllers, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The TL3474ID uses bipolar fabrication to achieve wide single-supply operation (4V to 36V), high input resistance (>540 GΩ), and robust output short-circuit protection. Its input stage supports common-mode voltages down to VCC− (ground), eliminating level-shifting requirements in single-rail systems.
It features matched channel separation >101 dB at 10 kHz and low noise performance (10.8 nV/√Hz input voltage noise, 2 fA/√Hz input current noise), making it suitable for precision amplification where crosstalk and signal integrity are critical across all four channels.
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 without phase margin degradation |
| Input offset voltage (max) | 3 mV - ensures ≤3 mV DC error at amplifier output under worst-case conditions, critical for low-voltage sensor interfaces |
| Slew rate (positive/negative) | 8 V/μs / 13 V/μs - supports fast transient response in pulse-amplification and multiplexed sampling systems |
| Supply voltage range | 4 V to 36 V single supply - eliminates need for dual-rail supplies in industrial PLCs and test equipment |
| Input common-mode range | Includes VCC− (ground) - allows direct connection of sensors referenced to system ground without biasing networks |
| Output short-circuit current | ±75 mA - provides inherent fault tolerance during overloads or miswiring in field-deployed instrumentation |
| Quiescent current per channel | 0.56 mA (typ) - enables low-power operation in battery-backed or energy-constrained embedded monitoring nodes |
Pinout & Package
TL3474ID is packaged in a 14-pin SOIC (D package) with 8.65 mm × 6.00 mm footprint and 1.75 mm max height, compatible with standard surface-mount assembly processes and IPC-7351 land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output channel 1 | Amplified output of first op-amp; capable of sourcing/sinking ±75 mA into resistive loads |
| 1IN– | Inverting input channel 1 | Differential input node for first amplifier; high impedance (>540 GΩ) minimizes loading on feedback networks |
| 1IN+ | Non-inverting input channel 1 | Reference input for first amplifier; accepts signals from ground-referenced sensors or DAC outputs |
| VCC+ | Positive supply voltage | Main power rail (4–36 V); must be decoupled locally with ≥0.1 µF ceramic capacitor |
| 2IN+, 2IN–, 2OUT | Inputs/outputs channel 2 | Second independent op-amp section with identical specs and layout symmetry to channel 1 |
| 3OUT, 3IN–, 3IN+ | Inputs/outputs channel 3 | Third independent op-amp section; shares same VCC+ and VCC−/GND rails as other channels |
| VCC– / GND | Negative supply or ground | Return path for single-supply operation; tied directly to system ground plane for noise immunity |
| 4IN+, 4IN–, 4OUT | Inputs/outputs channel 4 | Fourth independent op-amp section; fully functional with no inter-channel performance degradation |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Supports 4V–36V rails with input common-mode range extending to VCC−, removing need for external biasing in ground-referenced signal chains |
| Rail-to-rail input capability | Accepts input signals at or below ground potential, enabling direct interface with shunt-based current sensors and thermocouples |
| High channel separation | 101 dB at 10 kHz ensures minimal crosstalk between adjacent amplifiers in multi-channel data acquisition systems |
| Low input voltage noise | 10.8 nV/√Hz at 1 kHz allows clean amplification of microvolt-level sensor outputs without significant SNR degradation |
| Output short-circuit protection | Internally limits output current to ±75 mA, preventing latch-up or thermal damage during accidental shorts in industrial environments |
Applications
| Multiplexed Data Acquisition | ADC Driver Amplifier |
|---|---|
Use Scenario: Simultaneous sampling of multiple analog sensor inputs using a single ADC via analog multiplexer. IC Role / Device Role / Timing Role: Four independent op-amps condition each sensor signal (gain, filtering, buffering) before multiplexing. Use Value: Eliminates need for discrete op-amp ICs per channel, reducing BOM count and PCB area while maintaining channel-to-channel isolation >101 dB. |
Use Scenario: Driving the input of a successive-approximation register (SAR) ADC requiring low-impedance, fast-settling source. IC Role / Device Role / Timing Role: Buffer and drive ADC sample-and-hold capacitor with 2 μs settling time to 0.1% and 8 V/μs slew rate. Use Value: Ensures full-scale accuracy by minimizing acquisition errors caused by insufficient drive strength or slow settling in high-speed data logging. |
| Programmable Logic Controller (PLC) | Low-Side Current Sensing |
Use Scenario: Analog I/O modules in industrial PLCs measuring 4–20 mA loop currents and voltage inputs. IC Role / Device Role / Timing Role: Signal conditioning front-end for current/voltage transducers, providing gain, offset correction, and noise filtering. Use Value: Wide 4–36 V supply range and −40°C to +105°C rating ensure reliable operation across diverse PLC chassis power and environmental conditions. |
Use Scenario: Measuring load current by amplifying voltage across a shunt resistor placed between load and ground. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with input referenced to ground, rejecting common-mode noise from motor drives or switching regulators. Use Value: Input common-mode range including ground enables direct shunt connection without level shifters, improving measurement accuracy and simplifying layout. |
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 SOIC-14 package and −40°C to +105°C rating, but A-grade with 3 mV max offset (vs. TL3474ID's unspecified grade; datasheet lists TL3474I as base grade with 10 mV max) | Preferred for higher-precision applications like reference buffers where tighter offset spec is required | Select TL3474AIDR when guaranteed 3 mV max offset is mandatory; TL3474ID meets same temp range and package but has looser offset bound |
| MC33074DR2G | Pin-compatible quad op-amp with 1.8 MHz GBW, 10 V/μs slew rate, and 15 mV max offset - lower bandwidth and higher offset than TL3474ID | Suitable for cost-sensitive industrial controls where 4.5 MHz bandwidth is not required | Choose MC33074DR2G only if design tolerates reduced bandwidth and higher offset; not drop-in due to performance trade-offs |
Compared with TL3474AIDR, TL3474ID offers identical packaging and temperature range but lacks the guaranteed 3 mV offset specification; compared with MC33074DR2G, TL3474ID provides 2.5× higher gain-bandwidth and tighter offset control, making it preferable for high-fidelity signal paths in modern data acquisition systems.
Availability
TL3474ID is available at Aetrix Electronics and suitable for industrial automation, test and measurement equipment, and programmable logic controller designs requiring stable component supply across extended temperature ranges.
Supply support for TL3474ID 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 amplifiers and industrial-grade ICs.
The TL3474 family was designed for cost-effective, high-performance signal conditioning in single-supply industrial systems - emphasizing wide voltage range, ground-sensing capability, and robustness in harsh environments.
FAQ
What is the operating temperature range of the TL3474ID?
The TL3474ID is rated for industrial operation from −40°C to +105°C. This range is explicitly specified in TI's Package Option Addendum for the TL3474ID part number and validated across all electrical parameters in the recommended operating conditions table. The device maintains full functionality within this range without derating.
Does TL3474ID support true single-supply operation with inputs at ground potential?
Yes, TL3474ID supports true single-supply operation with its input common-mode voltage range extending to VCC− (ground). Per the datasheet's Recommended Operating Conditions and Electrical Characteristics tables, VICR includes ground at all supply voltages from 4 V to 36 V - enabling direct interface with ground-referenced sensors without external bias networks.
What is the maximum supply voltage for TL3474ID?
The absolute maximum supply voltage for TL3474ID is ±18 V differential (i.e., 36 V total), but the recommended operating range is 4 V to 36 V single supply. Exceeding 36 V risks permanent damage, while operation below 4 V may result in degraded output swing and increased distortion per the Electrical Characteristics table.
Is TL3474ID pin-compatible with MC34074 or MC33074 devices?
Yes, TL3474ID uses the same 14-pin SOIC (D) package and identical pin configuration as MC34074 and MC33074. Pin functions - including VCC+, VCC−/GND, and all four amplifier inputs/outputs - match exactly per TI's Pin Configuration and Functions section, enabling mechanical and layout compatibility in legacy designs.
What is the typical quiescent current per channel for TL3474ID?
The typical quiescent current per channel for TL3474ID is 0.56 mA at 25°C and ±15 V supply, as specified in the Electrical Characteristics table under ICC. At full operating temperature range (−40°C to +105°C), maximum ICC per channel is 5.5 mA - critical for thermal and power budgeting in densely packed industrial modules.
TL3474ID 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
TL3474ID FAQ
1.How can I place an order for TL3474ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3474ID 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 TL3474ID reliable?
The price and inventory of TL3474ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3474ID is usually 5 days.
3.What payment methods are accepted for TL3474ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3474ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3474ID?
TL3474ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3474ID 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 TL3474ID?
For technical support, including TL3474ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3474ID requirements.
6.How does Aetrix verify that TL3474ID is sourced from the original manufacturer or authorized distributors?
All TL3474ID 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 TL3474ID meets industry standards.
7.What is the process for return or replacement of TL3474ID?
All TL3474ID units undergo pre-shipment inspection (PSI). If there is an issue with TL3474ID, 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 TL3474ID part is unused and in its original packaging.
Return procedure for TL3474ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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