My Inquiry
My Account
Texas Instruments TL3474CD
- Part No.:
- TL3474CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL3474CD.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:650
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TL3474CD from Texas Instruments is a quad, high-slew-rate, single-supply operational amplifier optimized for 4V–36V operation with rail-to-rail input common-mode range (including ground) and 4.5MHz gain-bandwidth product. It delivers low input offset voltage (≤3mV max), output short-circuit protection, and 8V/μs positive slew rate - enabling precision signal conditioning in multiplexed data acquisition and ADC driver applications.
For engineers reviewing the TL3474CD datasheet, TL3474CD pinout, TL3474CD application, or TL3474CD equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The TL3474CD uses bipolar fabrication to achieve wide single-supply operation (4V–36V) while maintaining high input resistance (>540GΩ), low noise (10.8nV/√Hz), and robust channel separation (101dB at 10kHz). Its input stage includes ground-referenced common-mode range and internal ESD protection per JEDEC JESD22-A114.
It features four independent amplifiers sharing one VCC+ and one VCC−/GND supply pair, with no internal compensation - requiring external stability control for gains ≥1. The device exhibits 2μs settling time to 0.1% for 10V steps and maintains phase margin ≥50° with 300pF capacitive load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5MHz - supports stable unity-gain buffer or gain-of-10 amplification up to 450kHz without peaking. |
| Input offset voltage (max) | 3mV - enables ≤0.03% full-scale error in 10V-range 12-bit SAR ADC reference buffers. |
| Supply voltage range | 4V to 36V single supply - eliminates need for dual-rail supplies in industrial PLC analog I/O modules. |
| Input common-mode range | Includes VCC− (ground) - allows direct sensing of low-side current shunt voltages without level-shifting circuitry. |
| Slew rate (SR+) | 8V/μs - supports clean amplification of 10kHz 10Vpp signals with <0.02% THD+N. |
| Output short-circuit current | ±75mA - sustains continuous fault current without latch-up, enabling robust sensor interface protection. |
| Input bias current (max) | 500nA - preserves accuracy in high-impedance transducer interfaces (e.g., thermocouple amplifiers). |
Pinout & Package
TL3474CD is packaged in SOIC-14 (D package), 8.65mm × 6.00mm body size, 1.75mm max height, with standard 1.27mm lead pitch and RoHS-compliant NiPdAu lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output channel 1 | Amplifier A output; capable of sourcing/sinking ±75mA into resistive or moderate capacitive loads. |
| 1IN–, 1IN+ | Inverting/non-inverting inputs (channel 1) | Differential pair inputs with 10pF input capacitance; common-mode range extends to VCC− (ground). |
| VCC+ | Positive supply | Accepts 4V–36V DC; total quiescent current per channel is 0.56mA typical at 25°C. |
| 2IN+, 2IN–, 2OUT | Inputs/outputs (channel 2) | Electrically identical to channel 1; channel separation >101dB prevents crosstalk in multi-channel DAQ systems. |
| 3OUT, 3IN–, 3IN+ | Inputs/outputs (channel 3) | Same performance as channels 1–2; all four channels share VCC+ and VCC−/GND rails. |
| VCC– / GND | Negative supply or ground reference | Single-supply operation requires connection to system ground; not floating - defines input/output reference. |
| 4IN+, 4IN–, 4OUT | Inputs/outputs (channel 4) | Final amplifier in quad configuration; fully independent but shares thermal and supply coupling with others. |
Key Features
| Feature | Design Value |
|---|---|
| Wide single-supply operation | 4V–36V range enables direct integration into 5V, 12V, and 24V industrial power domains without regulators. |
| Rail-to-rail input common-mode | Includes VCC− (ground), allowing direct amplification of 0V-referenced signals like shunt-based current sensing. |
| High gain-bandwidth product | 4.5MHz supports closed-loop bandwidths >100kHz in gain-of-10 configurations for fast-settling ADC drivers. |
| Low input offset voltage | ≤3mV max ensures sub-0.1% gain error in precision instrumentation amplifier front-ends. |
| Output short-circuit protection | Internal current limiting prevents damage during transient overloads - critical for unattended field equipment. |
Applications
| Multiplexed Data Acquisition | ADC Driver Amplifier |
|---|---|
Use Scenario: Simultaneous sampling of multiple sensors (temperature, pressure, voltage) using a single SAR ADC via analog multiplexer. IC Role / Device Role / Timing Role: Quad op-amp buffers and conditions each sensor's output before multiplexing; provides drive strength and isolation. Use Value: 4.5MHz GBW and 8V/μs slew rate ensure 12-bit settling within 2μs, matching typical 500ksps SAR ADC acquisition windows. |
Use Scenario: Driving the input of a 12-bit or 14-bit SAR ADC with low distortion and minimal settling delay. IC Role / Device Role / Timing Role: Precision unity-gain buffer isolating source impedance from ADC input capacitance. Use Value: 10.8nV/√Hz input noise and ≤3mV offset preserve ENOB; 2μs 0.1% settling meets 1MSPS timing budgets. |
| SAR ADC Reference Buffer | Low-Side Current Sensing |
Use Scenario: Stabilizing and buffering the reference voltage (e.g., 2.5V or 4.096V) for high-resolution SAR ADCs in portable test equipment. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage follower delivering stable reference to ADC REF pin. Use Value: 10μV/°C offset drift and 10.8nV/√Hz noise prevent reference-induced quantization errors across temperature. |
Use Scenario: Amplifying millivolt-level voltage drops across low-value shunt resistors in motor control or battery management systems. IC Role / Device Role / Timing Role: Non-inverting amplifier with gain ≥20, referenced to system ground (low-side placement). Use Value: Input common-mode range including ground eliminates need for level shifters; 500nA max input bias avoids shunt measurement error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC34074DR2G | Higher input offset (6.5mV max), lower GBW (1.3MHz), no guaranteed ground-sensing input range. | Not suitable for low-side current sensing or precision reference buffering where VCM must include ground. | Select TL3474CD when ground-referenced input operation and ≥4.5MHz bandwidth are required. |
| LM324DT | Lower slew rate (0.4V/μs), lower GBW (1.2MHz), higher input offset (7mV max), no short-circuit protection. | Acceptable only in low-speed, non-critical signal conditioning; unsuitable for ADC drivers or fast-settling applications. | Choose TL3474CD for designs needing >100kHz closed-loop bandwidth, fast settling, or robust fault tolerance. |
Compared with MC34074DR2G and LM324DT, TL3474CD provides 3.5× higher gain-bandwidth, ground-compatible inputs, and integrated short-circuit protection - making it the preferred choice for precision, high-speed, single-supply industrial signal chains where reliability and accuracy are design-critical.
Availability
TL3474CD is available at Aetrix Electronics and suitable for multiplexed data acquisition systems, ADC driver circuits, and low-side current sensing applications requiring stable component supply and long-term industrial availability.
Supply support for TL3474CD 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 temperature - targeting programmable logic controllers, test equipment, and sensor interface modules.
FAQ
What is the operating temperature range for TL3474CD?
The TL3474CD is rated for 0°C to +70°C ambient operation, consistent with its "C" grade designation. This makes it suitable for commercial and industrial indoor environments but not extended-temperature applications - for those, the TL3474IDR variant (–40°C to +105°C) is recommended. All electrical specifications in the TL3474CD datasheet are guaranteed within this 0°C–70°C range.
Does TL3474CD support true rail-to-rail output swing?
No, TL3474CD does not provide rail-to-rail output swing. Its output voltage swing is typically within 1.2V of each rail under 2kΩ load (e.g., 0.005V to 4.8V on 5V supply). While the input common-mode range includes ground (VCC−), the output cannot reach either supply rail - a key distinction that affects headroom in low-voltage single-supply designs.
Can TL3474CD be used with a single 5V supply?
Yes, TL3474CD is explicitly designed for single-supply operation from 4V to 36V. At 5V, it delivers 3.7V high-level output and 0.005V low-level output into 2kΩ, with input common-mode range spanning 0V to 2.8V - enabling direct interfacing with microcontroller ADCs, digital logic, and grounded-sensor signals without level-shifting circuitry.
Is TL3474CD pin-compatible with TL3474CDR or TL3474CDR.A?
Yes, TL3474CD, TL3474CDR, and TL3474CDR.A are identical in pinout, package (SOIC-14), and electrical specifications. The suffixes denote packaging and tape-and-reel configuration only: TL3474CD is obsolete (tube), while TL3474CDR and TL3474CDR.A are active tape-and-reel variants - all share the same D package footprint and pin functions.
What is the maximum capacitive load TL3474CD can drive stably?
TL3474CD maintains ≥50° phase margin with up to 300pF capacitive load at unity gain, as verified in the datasheet's typical characteristics. Driving larger loads (e.g., >500pF) requires external isolation resistor (e.g., 10–50Ω in series with output) to prevent oscillation - a standard practice for op-amps without built-in capacitive-load compensation.
TL3474CD 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TL3474CD FAQ
1.How can I place an order for TL3474CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3474CD 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 TL3474CD reliable?
The price and inventory of TL3474CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3474CD is usually 5 days.
3.What payment methods are accepted for TL3474CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3474CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3474CD?
TL3474CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3474CD 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 TL3474CD?
For technical support, including TL3474CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3474CD requirements.
6.How does Aetrix verify that TL3474CD is sourced from the original manufacturer or authorized distributors?
All TL3474CD 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 TL3474CD meets industry standards.
7.What is the process for return or replacement of TL3474CD?
All TL3474CD units undergo pre-shipment inspection (PSI). If there is an issue with TL3474CD, 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 TL3474CD part is unused and in its original packaging.
Return procedure for TL3474CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL3474CD Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
