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Texas Instruments TL3474CPWR
- Part No.:
- TL3474CPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TL3474CPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,563
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Product details
Overview
TL3474CPWR from Texas Instruments is a quad, high-slew-rate, single-supply operational amplifier in TSSOP-14 package, featuring 4.5MHz gain-bandwidth product, 3mV max input offset voltage (A-grade), and rail-to-rail input common-mode range including ground. It delivers low-noise (10.8nV/√Hz), fast settling (2μs to 0.1%), and output short-circuit protection - used in SAR ADC reference buffers and low-side current sensing circuits.
For engineers reviewing the TL3474CPWR datasheet, TL3474CPWR pinout, TL3474CPWR application, or TL3474CPWR equivalent, key selection criteria include single-supply operation (4V–36V), 4-channel channel separation (>101dB), thermal performance (θJA = 113°C/W), and compatibility with multiplexed data-acquisition systems requiring stable DC precision and AC fidelity.
Technical Context
The TL3474CPWR employs bipolar fabrication optimized for wide-input-voltage-range single-supply operation, with VCC− tied to ground and common-mode input extending to VCC−. Its architecture supports simultaneous high DC accuracy (low VIO, high CMRR) and dynamic performance (8–10V/μs slew rate, 4.5MHz GBW).
It integrates four independent amplifiers sharing one dual-rail supply (VCC+, VCC−/GND), each with matched input bias current (<500nA typ), differential input resistance (540GΩ), and open-loop output impedance (525Ω at 1MHz). No internal compensation is required - stable at unity gain with capacitive loads up to 300pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5MHz - enables stable closed-loop operation up to 100kHz with gain ≥45, suitable for anti-aliasing and reconstruction filters. |
| Input offset voltage (max) | 3mV - ensures ≤3mV error in DC-coupled sensor interfaces or current-sense amplifiers without trimming. |
| Slew rate (positive/negative) | 8V/μs / 13V/μs - supports 10Vpp signals at ≥1MHz without distortion in fast-settling ADC driver stages. |
| Supply voltage range | 4V to 36V single supply - eliminates need for split supplies in industrial PLC I/O modules and battery-powered test equipment. |
| Input common-mode range | Includes ground (VCC−) - allows direct interfacing with grounded sensors, shunt resistors, and unipolar signal sources. |
| Output short-circuit current | ±75mA - sustains fault conditions without latch-up, supporting robust front-end protection in motor control feedback paths. |
| Equivalent input noise voltage | 10.8nV/√Hz at 1kHz - limits added noise in precision 16-bit SAR ADC reference buffers to <1LSB at 100kSPS. |
Pinout & Package
TSSOP-14 (PW) package: 5.00mm × 6.40mm body, 0.65mm lead pitch, 1.2mm max height, RoHS-compliant NIPDAU/SN lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output channel 1 | Amplifier A output; drives external load or next stage with ±75mA short-circuit capability. |
| 1IN– | Inverting input channel 1 | High-impedance (540GΩ) node for feedback network connection in inverting configurations. |
| 1IN+ | Non-inverting input channel 1 | DC-coupled input accepting signals down to ground; common-mode range extends to VCC−. |
| VCC+ | Positive supply voltage | Accepts 4V–36V; total device supply current is 2.24mA (4 × 0.56mA typ) at 25°C. |
| VCC– / GND | Negative supply / ground reference | Single-supply reference point; all inputs and outputs referenced to this node. |
| 4OUT | Output channel 4 | Amplifier D output; electrically isolated from other channels with >101dB channel separation at 10kHz. |
Key Features
| Feature | Design Value |
|---|---|
| Wide single-supply operation | 4V–36V range enables use in 5V, 12V, and 24V industrial systems without auxiliary rails. |
| Rail-to-rail input common-mode | Includes ground (VCC−), allowing direct connection to shunt-based current sensors and grounded transducers. |
| Low input offset drift | 10μV/°C max ensures <100μV total offset shift over 0°C–70°C ambient, critical for uncalibrated measurement front ends. |
| High channel separation | 101dB at 10kHz minimizes crosstalk in multi-channel data acquisition, preserving signal integrity across all four amplifiers. |
| Thermal robustness | θJA = 113°C/W (TSSOP) supports continuous operation at 70°C ambient with ≤150°C junction temperature under typical load. |
Applications
| Multiplexed Data Acquisition | Test and Measurement Equipment |
|---|---|
|
Use Scenario: Simultaneous sampling of 4 analog sensor channels via analog multiplexer before digitization. IC Role / Device Role: Quad buffer isolating multiplexer output from ADC input capacitance while maintaining DC accuracy. Use Value: 4.5MHz GBW and 2μs settling enable full-scale step response within 1 LSB error for 16-bit SAR ADCs operating at 500kSPS. |
Use Scenario: Front-end signal conditioning in portable multimeters and benchtop oscilloscope vertical amplifiers. IC Role / Device Role: Precision gain stage and offset adjustment amplifier with calibrated DC stability. Use Value: 3mV max VIO and 10μV/°C drift eliminate need for manual zero calibration during field use across temperature. |
| ADC Driver Amplifiers | Low-Side Current Sensing |
|
Use Scenario: Driving switched-capacitor inputs of successive-approximation register (SAR) ADCs with minimal settling error. IC Role / Device Role: Unity-gain buffer with low output impedance (525Ω) and high slew rate to charge ADC sample capacitor rapidly. Use Value: 8V/μs positive slew rate ensures 10V step settles to 0.1% in ≤2μs, matching typical 16-bit SAR acquisition windows. |
Use Scenario: Amplifying mV-level voltage drop across shunt resistor placed between load and system ground. IC Role / Device Role: Non-inverting amplifier with input referenced to ground, rejecting common-mode noise from power rail switching. Use Value: Input common-mode range including ground allows direct shunt connection without level-shifting circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC34074CP | Higher input offset (7mV max), lower GBW (1.3MHz), no guaranteed 4V min supply. | Limited to higher-voltage (>8V) systems; unsuitable for low-voltage 5V microcontroller-based DAQ. | Choose MC34074CP only if legacy design reuse is required and 1.3MHz bandwidth suffices. |
| TL074CDR | JFET-input (higher Zin), lower noise (18fA/√Hz), but no ground-sensing input - common-mode range starts at VCC− +4V. | Cannot interface directly with grounded shunts or 0V-referenced sensors without level-shifting. | Prefer TL074CDR when ultra-high input impedance (>10¹²Ω) and low current noise dominate over ground-referenced input needs. |
Compared with MC34074CP and TL074CDR, TL3474CPWR uniquely combines ground-sensing input, 4.5MHz bandwidth, and 3mV offset in a modern TSSOP package - making it optimal for space-constrained, single-supply, precision analog front ends where input common-mode range and speed are co-critical.
Availability
TL3474CPWR is available at Aetrix Electronics and suitable for multiplexed data-acquisition systems, low-side current sensing, and SAR ADC reference buffering requiring stable component supply across industrial temperature ranges (0°C to 70°C).
Supply support for TL3474CPWR 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 chains.
The TL3474CPWR belongs to TI's general-purpose bipolar op-amp family designed for cost-sensitive, high-reliability industrial applications demanding wide supply range, ground-sensing capability, and consistent AC/DC performance.
FAQ
What is the operating temperature range for TL3474CPWR?
The TL3474CPWR is rated for 0°C to 70°C ambient operation, matching the "C" grade designation. This range covers commercial and industrial environments where airflow and PCB layout maintain junction temperature below 150°C - verified by its θJA = 113°C/W and 2.24mA typical supply current.
Does TL3474CPWR support true single-supply operation with input signals at ground potential?
Yes. The TL3474CPWR explicitly supports single-supply operation with VCC− tied to ground, and its input common-mode voltage range includes VCC− (ground). This allows direct connection of grounded sensors or shunt resistors without level-shifting circuitry - confirmed in Section 5.2 Recommended Operating Conditions.
What is the maximum capacitive load TL3474CPWR can drive stably?
The TL3474CPWR maintains stability with up to 300pF capacitive load at unity gain, as validated in typical characteristics (Figure 5-10) and operating conditions (Section 5.4). For loads exceeding 300pF, external isolation resistor (≥100Ω) is recommended to preserve phase margin above 50°.
How does TL3474CPWR differ from TL3474ACPWR?
The TL3474CPWR is the standard-grade version (3mV max VIO), while TL3474ACPWR is the A-grade variant (1.5mV max VIO). Both share identical pinout, package, bandwidth, slew rate, and supply range - differing only in input offset voltage specification and associated test screening.
Is TL3474CPWR pin-compatible with MC34074CP in TSSOP-14?
No - MC34074CP is not offered in TSSOP-14. The MC34074 series is available only in SOIC-14 (D) and PDIP-14 (N) packages. TL3474CPWR's TSSOP-14 footprint requires PCB redesign for substitution; SOIC-14 variants like TL3474CDR are pin-compatible alternatives.
TL3474CPWR 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TL3474CPWR FAQ
1.How can I place an order for TL3474CPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3474CPWR 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 TL3474CPWR reliable?
The price and inventory of TL3474CPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3474CPWR is usually 5 days.
3.What payment methods are accepted for TL3474CPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3474CPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3474CPWR?
TL3474CPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3474CPWR 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 TL3474CPWR?
For technical support, including TL3474CPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3474CPWR requirements.
6.How does Aetrix verify that TL3474CPWR is sourced from the original manufacturer or authorized distributors?
All TL3474CPWR 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 TL3474CPWR meets industry standards.
7.What is the process for return or replacement of TL3474CPWR?
All TL3474CPWR units undergo pre-shipment inspection (PSI). If there is an issue with TL3474CPWR, 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 TL3474CPWR part is unused and in its original packaging.
Return procedure for TL3474CPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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