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Texas Instruments TL3474IPWR
- Part No.:
- TL3474IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TL3474IPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,747
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Product details
Overview
TL3474IPWR from Texas Instruments is a quad, high-slew-rate, single-supply operational amplifier optimized for precision analog signal conditioning in industrial and test equipment. It delivers 4.5MHz gain-bandwidth, 10V/μs positive slew rate, ±80mA output current, and operates from 4V to 36V with input common-mode range extending to ground (VCC−). It is used in SAR ADC reference buffers and low-side current sensing circuits.
For engineers reviewing the TL3474IPWR datasheet, TL3474IPWR pinout, TL3474IPWR application, or TL3474IPWR equivalent, key selection criteria include single-supply rail-to-rail input capability, 3mV max input offset voltage (A-grade), thermal performance in TSSOP-14 package, and compatibility with multiplexed data-acquisition systems requiring channel isolation and stability under capacitive loads.
Technical Context
The TL3474IPWR employs bipolar fabrication for high input resistance (540GΩ), low noise (10.8nV/√Hz), and robust open-loop gain (≥20V/mV across temperature). Its architecture supports stable operation with 300pF capacitive loads and provides 50° phase margin at unity gain, enabling direct driving of ADC inputs without external compensation.
Designed explicitly for single-supply use, it features rail-to-rail input stage operation down to VCC− (ground), eliminating level-shifting requirements in 5V or 12V systems. The device includes internal short-circuit protection and exhibits <0.02% THD+N at 10kHz, making it suitable for precision instrumentation front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5MHz - enables stable closed-loop gain ≥10 at 450kHz for anti-aliasing filter interfaces. |
| Input offset voltage (max) | 3mV - ensures ≤0.06% full-scale error in 5V-range current-sense amplifiers. |
| Slew rate (positive) | 10V/μs - supports 10Vpp signals up to ~1.6MHz without distortion in fast-settling applications. |
| Supply voltage range | 4V to 36V - allows direct integration into 5V, 12V, and 24V industrial power rails without regulators. |
| Input common-mode range | Includes VCC− (ground) - eliminates need for negative supply in single-ended sensor interfaces. |
| Output short-circuit current | ±75mA - sustains drive into low-impedance ADC reference inputs or active filters without latch-up. |
| Equivalent input noise | 10.8nV/√Hz @1kHz - preserves SNR in 16-bit SAR ADC driver stages with ≤10kΩ source impedance. |
Pinout & Package
TSSOP-14 (PW) package: 5.00mm × 6.40mm body, 0.65mm pitch, 1.2mm max height, RoHS-compliant NIPDAU/SN lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output channel 1 | Amplified signal output for 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; high CMRR (≥80dB). |
| VCC+ | Positive supply | Primary power rail (4–36V); total per-package supply current ≤5.5mA (all channels). |
| 2IN+, 2IN–, 2OUT | Inputs/outputs (ch2) | Independent second amplifier; channel separation >101dB minimizes crosstalk in multi-channel DAQ. |
| 3OUT, 3IN–, 3IN+ | Inputs/outputs (ch3) | Third amplifier with identical specs; enables three-phase sensing or triple-buffered references. |
| VCC– / GND | Negative supply / ground | Reference node for single-supply operation; must be low-impedance to maintain PSRR (≥70dB). |
| 4IN+, 4IN–, 4OUT | Inputs/outputs (ch4) | Fourth independent amplifier; supports simultaneous signal conditioning for four sensor channels. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Common-mode range includes VCC− (ground), enabling direct interfacing with 0V-referenced sensors. |
| High output drive strength | ±75mA short-circuit current supports low-Z loads like ADC reference inputs and active RC filters. |
| Low input bias current | 0.01nA typical - minimizes voltage error in high-impedance transducer interfaces (>1MΩ sources). |
| Stable with capacitive loads | 50° phase margin at CL = 300pF - permits direct connection to ADC input capacitance without oscillation. |
| Thermal robustness | θJA = 113°C/W in TSSOP-14 - supports continuous operation at TA ≤105°C with ≤300mW dissipation. |
Applications
| ADC Driver Amplifier | SAR ADC Reference Buffer |
|---|---|
|
Use Scenario: Driving the analog input of a 16-bit SAR ADC sampling at 1MSPS in a programmable logic controller. IC Role / Device Role / Timing Role: Precision gain-stage amplifier with fast settling (2μs to 0.1%) and low THD (0.02%) to preserve ENOB. Use Value: Maintains ≥15.5 ENOB by limiting noise contribution to <10.8nV/√Hz and avoiding distortion-induced harmonic folding. |
Use Scenario: Buffering a precision voltage reference for four-channel simultaneous-sampling SAR ADCs in test equipment. IC Role / Device Role / Timing Role: Low-output-impedance (525Ω), high-PSRR (97dB) reference follower ensuring stable reference during conversion cycles. Use Value: Prevents reference droop and cross-talk between channels via 101dB channel separation and ±75mA drive capability. |
| Multiplexed Data-Acquisition System | Low-Side Current Sensing |
|
Use Scenario: Signal conditioning for 8-channel thermocouple inputs using analog multiplexing before digitization. IC Role / Device Role / Timing Role: Quad amplifier providing matched gain, offset, and bandwidth across all channels with minimal inter-channel drift. Use Value: Enables <1 LSB gain error matching and <0.5mV offset drift over –40°C to +105°C for calibrated multi-sensor systems. |
Use Scenario: Amplifying mV-level shunt voltage in 24V motor control inverters with isolated feedback loops. IC Role / Device Role / Timing Role: Single-supply inverting amplifier referenced to ground, rejecting common-mode noise from high-current switching nodes. Use Value: Achieves <0.1% measurement accuracy using 3mV max VIO and 80dB CMRR at 60Hz, even with 24V common-mode transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL3474CPWR | Same die, C-grade (0°C to 70°C) vs I-grade; identical electrical specs except wider temp range for TL3474IPWR. | Not rated for extended industrial temperature operation; unsuitable for outdoor or under-hood deployments. | Select TL3474IPWR when operating ambient exceeds 70°C or long-term reliability at temperature extremes is required. |
| MC33074DR2G | Lower GBW (1.8MHz), higher VIO (7mV max), no guaranteed rail-to-rail input; SOIC-14 only. | Lacks ground-sensing capability and bandwidth needed for SAR ADC drivers above 200kHz. | Choose TL3474IPWR where input common-mode range to ground and ≥4.5MHz bandwidth are mandatory. |
Compared with TL3474CPWR and MC33074DR2G, TL3474IPWR uniquely combines –40°C to +105°C operation, rail-to-rail input, and 4.5MHz GBW in a space-saving TSSOP-14 package-enabling compact, high-accuracy signal chains in harsh environments without design compromises.
Availability
TL3474IPWR is available at Aetrix Electronics and suitable for programmable logic controllers, test and measurement equipment, and low-side current sensing applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL3474IPWR 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 conditioning ICs.
The TL3474 family was designed for cost-sensitive, high-reliability industrial applications demanding wide supply range, ground-sensing capability, and robust performance across –40°C to +105°C without external support components.
FAQ
What is the maximum operating temperature for TL3474IPWR?
The TL3474IPWR is rated for operation from –40°C to +105°C ambient temperature. This I-grade specification ensures reliable performance in industrial control cabinets, motor drives, and outdoor test equipment where thermal stress exceeds commercial-grade limits. The device maintains all electrical characteristics-including 3mV max input offset and 4.5MHz gain-bandwidth-across this full range, as verified in TI's characterization reports.
Does TL3474IPWR support true rail-to-rail input operation?
Yes, TL3474IPWR supports rail-to-rail input operation down to VCC− (ground), as confirmed in Section 5.2 of the datasheet. Its common-mode input voltage range extends to VCC− across all supply voltages (4V–36V), enabling direct interfacing with 0V-referenced sensors and eliminating level-shifting circuitry in single-supply systems.
Can TL3474IPWR drive a 1000pF capacitive load?
No-TL3474IPWR is characterized for stability with up to 300pF capacitive loads (Section 5.4). Driving 1000pF risks phase margin degradation and potential oscillation. For heavier loads, add a series resistor (≥100Ω) between output and capacitance, or use an external unity-gain buffer. The 50° phase margin at 300pF is validated per JEDEC JESD51-7 thermal modeling.
What is the pin 1 marking and orientation for TL3474IPWR?
TL3474IPWR uses standard TSSOP-14 pin 1 identification: a small circular depression or "dot" located near pin 1 on the top surface, positioned in Quadrant Q1 per TI's tape-and-reel documentation. The device follows JEDEC MO-153 packaging standards, with pin 1 at the bottom-left corner when the notch or dot faces upward and the leads point downward.
Is TL3474IPWR compatible with lead-free reflow profiles?
Yes, TL3474IPWR has an MSL Level-1 rating and is qualified for peak reflow temperatures up to 260°C per JEDEC J-STD-020. Its NIPDAU/SN lead finish ensures reliable solder joint formation under standard lead-free reflow profiles, including ramp-soak-reflow with 60–90 seconds above 217°C. TI confirms full compliance in Package Materials Information documents dated August 2026.
TL3474IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TL3474IPWR FAQ
1.How can I place an order for TL3474IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3474IPWR 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 TL3474IPWR reliable?
The price and inventory of TL3474IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3474IPWR is usually 5 days.
3.What payment methods are accepted for TL3474IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3474IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3474IPWR?
TL3474IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3474IPWR 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 TL3474IPWR?
For technical support, including TL3474IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3474IPWR requirements.
6.How does Aetrix verify that TL3474IPWR is sourced from the original manufacturer or authorized distributors?
All TL3474IPWR 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 TL3474IPWR meets industry standards.
7.What is the process for return or replacement of TL3474IPWR?
All TL3474IPWR units undergo pre-shipment inspection (PSI). If there is an issue with TL3474IPWR, 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 TL3474IPWR part is unused and in its original packaging.
Return procedure for TL3474IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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