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Texas Instruments TL3474AIDG4
- Part No.:
- TL3474AIDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL3474AIDG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,917
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Product details
Overview
TL3474AIDG4 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), 4.5MHz gain-bandwidth product, and 3mV max input offset voltage (A-grade). It serves as a precision signal-conditioning IC in multiplexed data-acquisition systems, ADC driver stages, and low-side current sensing circuits.
For engineers reviewing the TL3474AIDG4 datasheet, TL3474AIDG4 pinout, TL3474AIDG4 application, or TL3474AIDG4 equivalent, key selection criteria include guaranteed single-supply operation down to 4V, output short-circuit protection, wide common-mode input range (VCC− to VCC+ − 2.2V), and compatibility with SAR ADC reference buffering and programmable logic controller analog front-ends.
Technical Context
The TL3474AIDG4 employs bipolar fabrication to deliver high input resistance (>540 GΩ), low input bias current (≤0.01 nA typ), and low noise (10.8 nV/√Hz at 1 kHz). Its architecture supports stable unity-gain operation with 70° phase margin (CL = 0) and maintains 50° phase margin with 300 pF capacitive load.
It features four independent amplifiers in one package, each with matched electrical characteristics across temperature (−40°C to +105°C), including 10 μV/°C max input offset drift and 97 dB min CMRR at 25°C. The device is specified for both single-supply (e.g., 5V, 12V, 24V) and split-supply (±15V) configurations without performance degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5 MHz - enables stable closed-loop operation up to 100 kHz with gain ≥45, suitable for fast-settling ADC drivers. |
| Input offset voltage (max) | 3 mV - ensures ≤3 mV DC error in precision sensor interfaces and current-sense amplifiers without trimming. |
| Slew rate (positive/negative) | 8 V/μs / 13 V/μs - supports 10V step response in ≤2 μs to 0.1%, critical for multiplexed acquisition settling. |
| Supply voltage range | 4 V to 36 V single supply - eliminates need for negative rail in industrial PLCs and battery-powered test equipment. |
| Input common-mode range | VCC− to (VCC+ − 2.2 V) - includes ground in single-supply mode, enabling direct connection to shunt resistors in low-side sensing. |
| Output short-circuit current | ±75 mA - provides robust fault tolerance during transient overloads in motor control feedback paths. |
| Equivalent input noise voltage | 10.8 nV/√Hz at 1 kHz - minimizes added noise in high-resolution (≥16-bit) SAR ADC reference buffers. |
Pinout & Package
TL3474AIDG4 is packaged in a 14-pin SOIC (D package), 8.65 mm × 6.00 mm body size, 1.75 mm max height, with standard JEDEC MS-012AB outline and NIPDAU lead finish. Pin 1 is marked by a beveled corner or dot; device is RoHS-compliant and MSL Level-1 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT, 2OUT, 3OUT, 4OUT | Output (O) | Four independent buffered outputs; each capable of sourcing/sinking ±75 mA with short-circuit protection. |
| 1IN+, 2IN+, 3IN+, 4IN+ | Non-inverting input (I) | High-impedance (540 GΩ) inputs accepting signals from 0 V (ground) to VCC+ − 2.2 V in single-supply mode. |
| 1IN−, 2IN−, 3IN−, 4IN− | Inverting input (I) | Differential inputs supporting precision feedback networks; matched to non-inverting inputs for low offset. |
| VCC+ | Positive supply | Main power rail; accepts 4–36 V (single) or +18 V (split); total current into VCC+ ≤80 mA per package. |
| VCC− / GND | Negative supply / Ground | Reference node for single-supply operation (0 V) or negative rail (−18 V max); supports true ground-referenced inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation from 4 V | Enables use in 5 V microcontroller-based data loggers and 12 V/24 V industrial sensors without dual-rail generation. |
| Rail-to-rail input common-mode range | Includes ground (VCC−), allowing direct interface to shunt resistors in low-side current measurement topologies. |
| 4.5 MHz gain-bandwidth with 70° phase margin | Guarantees stability driving 10 kΩ || 100 pF loads typical of ADC input RC filters without external compensation. |
| Output short-circuit protection | Prevents latch-up or damage when outputs are accidentally shorted to supply rails-critical in field-deployed PLC I/O modules. |
| Low input offset drift (10 μV/°C max) | Maintains accuracy across −40°C to +105°C ambient, eliminating recalibration in automotive and outdoor test equipment. |
Applications
| Multiplexed Data-Acquisition Systems | Test and Measurement Equipment |
|---|---|
Use Scenario: Simultaneous sampling of multiple sensor channels via analog multiplexer before ADC conversion. IC Role / Device Role / Timing Role: Buffer and condition multiplexed analog signals with minimal crosstalk (101 dB channel separation) and fast settling (2 μs to 0.1%). Use Value: Enables 100 kSPS throughput in 16-bit systems by reducing acquisition dead time and maintaining linearity across all four channels. |
Use Scenario: Front-end signal conditioning in portable multimeters and benchtop oscilloscope vertical amplifiers. IC Role / Device Role / Timing Role: Precision gain stage with low THD (0.02% at 10 kHz) and wide bandwidth for accurate AC/DC voltage measurement. Use Value: Delivers <0.1% gain error and <100 μV offset drift over temperature, meeting Class II handheld meter accuracy requirements. |
| ADC Driver Amplifiers | SAR ADC Reference Buffers |
Use Scenario: Driving switched-capacitor inputs of 16-bit SAR ADCs with full-scale step transitions. IC Role / Device Role / Timing Role: High-slew-rate buffer (13 V/μs negative slew) ensuring complete settling within ADC aperture time. Use Value: Prevents missing codes and differential nonlinearity errors by achieving 0.01% settling in ≤2.5 μs at 10 V step. |
Use Scenario: Isolating and stabilizing precision voltage references (e.g., 2.5 V, 4.096 V) for SAR ADC internal reference inputs. IC Role / Device Role / Timing Role: Low-noise (10.8 nV/√Hz), low-output-impedance (525 Ω at 1 MHz) buffer with high PSRR (97 dB). Use Value: Reduces reference noise contribution to <0.5 LSB in 16-bit conversions and rejects supply ripple affecting ADC accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL3474IDR | Same die, same specs, but rated for −40°C to +105°C industrial temp range; identical SOIC-14 packaging and pinout. | No functional difference; TL3474AIDG4 and TL3474IDR share identical electrical behavior and thermal performance. | Select TL3474IDR only if A-grade offset (≤3 mV) is not required; otherwise TL3474AIDG4 remains optimal for precision designs. |
| MC34074ADR2G | Lower GBW (1.3 MHz), higher offset (7 mV max), no guaranteed single-supply operation below 10 V; SOIC-14 compatible footprint. | Not suitable for 5 V systems or fast-settling ADC drivers; acceptable only in cost-sensitive, low-bandwidth industrial controls. | Choose MC34074ADR2G only for legacy drop-in replacement where 4.5 MHz GBW and 3 mV offset are not design-critical. |
Compared with TL3474IDR, TL3474AIDG4 offers tighter offset specification (3 mV vs unspecified for ID-grade) while sharing identical temperature range and package; versus MC34074ADR2G, TL3474AIDG4 delivers 3.5× higher bandwidth, 2.3× lower offset, and guaranteed 4 V operation-making it superior for modern precision data acquisition.
Availability
TL3474AIDG4 is available at Aetrix Electronics and suitable for industrial programmable logic controllers, test-and-measurement instrumentation, and high-resolution SAR ADC signal chains requiring stable component supply across extended temperature ranges.
Supply support for TL3474AIDG4 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-chain solutions.
The TL3474A series belongs to TI's general-purpose precision op-amp portfolio, designed specifically for single-supply, high-speed, multi-channel analog signal conditioning in harsh industrial and test environments.
FAQ
What is the operating temperature range for TL3474AIDG4?
The TL3474AIDG4 is rated for operation from −40°C to +105°C, making it suitable for industrial control cabinets, automotive under-hood monitoring, and outdoor test equipment where ambient temperatures exceed commercial-grade limits. This range is confirmed in the "Recommended Operating Conditions" table of the official SLVS461C datasheet.
Does TL3474AIDG4 support true single-supply operation with input signals at ground potential?
Yes, TL3474AIDG4 supports true single-supply operation with its input common-mode range extending to VCC− (i.e., ground), enabling direct interfacing with shunt resistors in low-side current sensing and ground-referenced sensor outputs. This capability is explicitly specified in Section 5.2 of the TL3474A datasheet.
What is the maximum capacitive load TL3474AIDG4 can drive while maintaining stability?
TL3474AIDG4 maintains 50° phase margin with a 300 pF capacitive load at unity gain, as verified in Section 5.4 "Operating Characteristics." For loads >300 pF, external isolation resistance (e.g., 100 Ω in series with output) is recommended to preserve stability in ADC driver or cable-driving applications.
Is TL3474AIDG4 pin-compatible with MC34074/A series op-amps?
TL3474AIDG4 uses the same SOIC-14 pinout as MC34074/A devices, but functional equivalence is limited: TL3474AIDG4 offers higher GBW (4.5 MHz vs 1.3 MHz), lower offset (3 mV vs 7 mV), and guaranteed 4 V operation-while MC34074/A lacks explicit single-supply optimization and ground-sensing capability.
What does the "G4" suffix indicate in TL3474AIDG4?
The "G4" suffix denotes TI's green packaging standard: lead-free (Pb-free), RoHS-compliant construction with NiPdAu (NIPDAU) lead finish and MSL Level-1 rating. This matches the "Active" status and "Yes" RoHS value in TI's official PACKAGE OPTION ADDENDUM for TL3474AIDRG4 and TL3474AIDRG4.A part numbers.
TL3474AIDG4 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
TL3474AIDG4 FAQ
1.How can I place an order for TL3474AIDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL3474AIDG4 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 TL3474AIDG4 reliable?
The price and inventory of TL3474AIDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL3474AIDG4 is usually 5 days.
3.What payment methods are accepted for TL3474AIDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL3474AIDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL3474AIDG4?
TL3474AIDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL3474AIDG4 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 TL3474AIDG4?
For technical support, including TL3474AIDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL3474AIDG4 requirements.
6.How does Aetrix verify that TL3474AIDG4 is sourced from the original manufacturer or authorized distributors?
All TL3474AIDG4 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 TL3474AIDG4 meets industry standards.
7.What is the process for return or replacement of TL3474AIDG4?
All TL3474AIDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TL3474AIDG4, 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 TL3474AIDG4 part is unused and in its original packaging.
Return procedure for TL3474AIDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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