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Texas Instruments TL974ID
- Part No.:
- TL974ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL974ID.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,108
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Product details
Overview
TL974ID from Texas Instruments is a quad rail-to-rail output operational amplifier optimized for low-noise audio preamplification and portable battery-powered systems. It delivers 4.4 nV/√Hz input voltage noise, ±2.4 V output swing at ±2.5 V supply, 10.6 MHz gain-bandwidth product, and operates from 2.7 V to 12 V single or dual supply. It is used in professional audio circuits and instrumentation sensor front-ends.
For engineers reviewing the TL974ID datasheet, TL974ID pinout, TL974ID application, or TL974ID equivalent, key selection considerations include its rail-to-rail output capability, low-noise performance at audio frequencies, thermal stability across –40°C to +125°C, and compatibility with space-constrained SOIC-14 layouts requiring minimal external components.
Technical Context
The TL974ID implements a complementary-input-stage architecture enabling rail-to-rail common-mode input range (VCC– +1.15 V to VCC+ –1.15 V) and rail-to-rail output swing. Its internal design supports stable unity-gain operation with ≥60° phase margin under 100 pF capacitive load.
It features low input bias current (±0.01 nA typ), low input offset voltage drift (±0.25 µV/°C), and high CMRR (90 dB typ) - all specified over full industrial temperature range. The device draws only 2.8 mA per amplifier at 25°C, supporting efficient multi-channel signal conditioning without thermal derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V - enables direct integration into 3.3 V, 5 V, and 9 V battery or regulated systems without level-shifting. |
| Input Voltage Noise | 4.4 nV/√Hz @ 100 kHz - ensures minimal audible hiss in microphone preamps and line-level audio stages. |
| Output Swing | ±2.4 V @ ±2.5 V supply - delivers >96% of full rail-to-rail dynamic range for maximum signal fidelity in low-voltage designs. |
| Gain-Bandwidth Product | 10.6 MHz - supports stable closed-loop gains up to 100× at 100 kHz for anti-aliasing and active filtering. |
| Common-Mode Rejection | 90 dB typ - rejects power-supply ripple and shared-impedance noise in multi-amplifier PCB layouts. |
| Supply Current per Amp | 2.8 mA @ 25°C - allows four independent channels on a single 12 V/100 mA rail with headroom for transients. |
| Operating Temperature | –40°C to +125°C - qualified for automotive cabin electronics and industrial sensor nodes without derating. |
Pinout & Package
TL974ID is housed in a 14-pin SOIC package (D package), measuring 8.65 mm × 6.00 mm, with standard 1.27 mm pitch and gull-wing leads compatible with automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN– (Inverting Input) | Differential input node for each of four amplifiers; high impedance (>10¹² Ω) minimizes loading on preceding stage. |
| 2, 6, 10, 14 | IN+ (Non-inverting Input) | High-impedance input referenced to system ground or virtual ground; supports DC-coupled sensor interfaces. |
| 3, 7, 11, 12 | OUT (Output) | Rail-to-rail output capable of sourcing/sinking ±65 mA; drives 2 kΩ loads to within 200 mV of rails. |
| 4 | VCC– | Negative supply pin - connects to ground (single supply) or negative rail (dual supply); must be bypassed with 0.1 µF ceramic. |
| 11 | VCC+ | Positive supply pin - accepts 2.7–12 V; requires local 0.1 µF ceramic bypass capacitor for PSRR optimization. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full dynamic range at low supply voltages (e.g., ±2.4 V at ±2.5 V), maximizing SNR in battery-powered audio paths. |
| Low input voltage noise | 4.4 nV/√Hz enables clean amplification of microvolt-level signals from piezoelectric sensors and electret mics. |
| Wide supply range | 2.7 V to 12 V operation supports both 3.3 V microcontroller I/O domains and legacy 9 V/12 V analog subsystems. |
| High CMRR & PSRR | 90 dB CMRR and 70 dB PSRR suppress interference from noisy digital supplies and shared ground returns. |
| Thermal stability | Specified over –40°C to +125°C with <±0.25 µV/°C offset drift - eliminates calibration in automotive and industrial environments. |
Applications
| Professional Audio Preamplifier | Portable Instrumentation Front-End |
|---|---|
|
Use Scenario: Amplifying low-level microphone or line-in signals in studio-grade audio interfaces and field recorders. IC Role / Device Role / Timing Role: Quad-channel voltage amplifier providing gain, buffering, and anti-alias filtering before ADC sampling. Use Value: 4.4 nV/√Hz noise floor preserves signal integrity across 20 Hz–20 kHz bandwidth; rail-to-rail output avoids clipping during transient peaks. |
Use Scenario: Conditioning analog outputs from precision temperature, pressure, or strain sensors in handheld test equipment. IC Role / Device Role / Timing Role: Four independent instrumentation amplifier stages with matched gain and offset for multi-sensor data acquisition. Use Value: ±0.25 µV/°C offset drift ensures <1 µV error over 100°C ambient shift; 90 dB CMRR rejects common-mode noise from shared sensor excitation sources. |
| Cell Phone Audio Codec Interface | Industrial Sensor Signal Chain |
|
Use Scenario: Driving headphone outputs and processing voice-band signals in smartphone baseband processors. IC Role / Device Role / Timing Role: Low-voltage quad op-amp implementing DAC output buffer, mic bias generation, and receive path filtering. Use Value: 2.7 V minimum supply enables direct connection to phone battery; 2.8 mA per amp minimizes impact on standby current budget. |
Use Scenario: Signal conditioning for 4–20 mA loop-powered transmitters and RTD bridge amplifiers in factory automation PLC modules. IC Role / Device Role / Timing Role: Precision gain stage and reference buffer in isolated analog input cards operating at extended temperature. Use Value: 125°C max operating temperature supports placement near power electronics; SOIC-14 package fits dense industrial PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4134UA | Lower noise (3.2 nV/√Hz), higher supply current (4 mA/amp), no rail-to-rail output (clips ~1.5 V from rails). | Better suited for ultra-low-noise studio gear where supply headroom permits; not ideal for 3.3 V systems. | Select when absolute noise floor dominates over supply voltage constraints and board area. |
| LMV324IDR | Higher noise (24 nV/√Hz), rail-to-rail output, lower supply current (210 µA/amp), narrower GBW (1 MHz). | Targeted at cost-sensitive consumer electronics with relaxed SNR requirements and long battery life needs. | Select when power efficiency and BOM cost outweigh audio fidelity and bandwidth requirements. |
Compared with OPA4134UA and LMV324IDR, TL974ID uniquely balances low-noise performance (4.4 nV/√Hz), rail-to-rail output, and moderate quiescent current (2.8 mA/amp) - making it optimal for space-constrained, battery-operated audio and sensor systems requiring both fidelity and supply flexibility.
Availability
TL974ID is available at Aetrix Electronics and suitable for professional audio circuits, portable instrumentation front-ends, and industrial sensor signal chains requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL974ID 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 company specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.
The TL97x family was designed specifically for low-noise, rail-to-rail output signal conditioning in portable and battery-powered equipment - emphasizing audio fidelity, thermal stability, and supply voltage flexibility.
FAQ
What is the maximum supply voltage for TL974ID?
The absolute maximum supply voltage for TL974ID is 15 V, but the recommended operating range is 2.7 V to 12 V. Operating beyond 12 V may degrade long-term reliability and is not characterized per datasheet specifications. TL974ID must never be subjected to differential input voltages exceeding ±1 V or input voltages outside VCC– –0.3 V to VCC+ +0.3 V.
Does TL974ID support single-supply operation?
Yes, TL974ID supports true single-supply operation from 2.7 V to 12 V. Its rail-to-rail output stage delivers output voltages within 200 mV of both supply rails, and its input common-mode range extends to VCC– +1.15 V, enabling use with ground-referenced inputs. A virtual ground or DC bias network is required for AC-coupled inputs in single-supply configurations.
What is the typical input offset voltage of TL974ID?
The typical input offset voltage of TL974ID is ±0.21 mV at 25°C, with a maximum of 4 mV over the full –40°C to +125°C temperature range. This low offset, combined with ±0.25 µV/°C drift, ensures minimal DC error accumulation in precision sensor amplification and multi-stage analog signal chains using TL974ID.
Can TL974ID drive capacitive loads directly?
TL974ID maintains ≥60° phase margin with up to 100 pF capacitive load under unity-gain conditions, as verified in Figure 5-7 of the datasheet. For loads >100 pF, a series isolation resistor (e.g., 50 Ω) between output and capacitance is recommended to prevent peaking or oscillation - especially critical in audio output and filter applications using TL974ID.
Is TL974ID pin-compatible with other quad op-amps in SOIC-14?
No, TL974ID uses a non-standard pinout: pins 1/5/9/13 are IN–, pins 2/6/10/14 are IN+, pins 3/7/11/12 are OUT, pin 4 is VCC–, and pin 11 is VCC+. This differs from industry-standard SOIC-14 quad op-amps like LM324 or TL074. Direct replacement requires PCB layout revision; TL974ID must be placed using its specific pin mapping to avoid functional failure.
TL974ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 5V/µs
- Gain Bandwidth Product:
- 12 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 2mA (x4 Channels)
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TL974ID FAQ
1.How can I place an order for TL974ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TL974ID 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 TL974ID reliable?
The price and inventory of TL974ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL974ID is usually 5 days.
3.What payment methods are accepted for TL974ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL974ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL974ID?
TL974ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL974ID 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 TL974ID?
For technical support, including TL974ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL974ID requirements.
6.How does Aetrix verify that TL974ID is sourced from the original manufacturer or authorized distributors?
All TL974ID 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 TL974ID meets industry standards.
7.What is the process for return or replacement of TL974ID?
All TL974ID units undergo pre-shipment inspection (PSI). If there is an issue with TL974ID, 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 TL974ID part is unused and in its original packaging.
Return procedure for TL974ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL974ID 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
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