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Texas Instruments TL974IPW
- Part No.:
- TL974IPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TL974IPW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,120
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Product details
Overview
TL974IPW 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 high-fidelity sensor signal conditioning.
For engineers reviewing the TL974IPW datasheet, TL974IPW pinout, TL974IPW application, or TL974IPW equivalent, key selection considerations include its quad-channel rail-to-rail output architecture, low-noise performance at audio frequencies, thermal stability across –40°C to 125°C, and compatibility with space-constrained TSSOP-14 layouts in portable equipment designs.
Technical Context
The TL974IPW 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 (±2.4 V at ±2.5 V). Its 10.6 MHz GBWP and 60° phase margin support stable unity-gain and moderate-gain configurations up to 100 kHz with 100 pF capacitive load.
It draws 2.8 mA per amplifier at 25°C under no-load conditions and maintains 90 dB CMRR and 70 dB SVR at 25°C. Input offset voltage is ±0.21 mV (typ), with drift of ±0.25 µV/°C - enabling precision DC-coupled signal paths in instrumentation-grade sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V - supports single-supply operation down to 2.7 V and dual-supply operation up to ±6 V, ideal for battery-powered audio and portable instrumentation. |
| Input Voltage Noise | 4.4 nV/√Hz at 100 kHz - enables high-fidelity preamplification of low-level microphone or piezoelectric sensor signals without audible noise floor degradation. |
| Output Swing | ±2.4 V at ±2.5 V supply - delivers >96% of full rail-to-rail dynamic range, maximizing signal headroom in low-voltage audio stages. |
| Gain-Bandwidth Product | 10.6 MHz - supports stable closed-loop gains up to ~100 at 100 kHz, suitable for active filters and wideband sensor amplifiers. |
| Input Offset Voltage | ±0.21 mV (typ) - ensures <1 mV total error in DC-coupled transducer interfaces without external trimming. |
| Common-Mode Rejection | 90 dB (typ) - suppresses power supply ripple and shared-noise coupling in multi-amplifier PCB layouts. |
| Operating Temperature | –40°C to +125°C - qualified for industrial and automotive cabin-temperature environments without derating. |
Pinout & Package
Packaged in a 14-pin TSSOP (PW) with 5.00 mm × 6.40 mm footprint and 0.65 mm lead pitch, the TL974IPW supports high-density routing and automated assembly while maintaining thermal resistance of 113°C/W (θJA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN– (Inverting Input) | High-impedance differential input for channel 1–4; accepts common-mode voltages from VCC– + 1.15 V to VCC+ – 1.15 V. |
| 2, 6, 10, 14 | IN+ (Non-inverting Input) | High-impedance differential input for channel 1–4; enables precision DC-coupled sensor biasing and reference buffering. |
| 3, 7, 11, 12 | OUT (Output) | Rail-to-rail output capable of sourcing/sinking ±65 mA (typ); drives 2 kΩ loads to within 200 mV of rails. |
| 4 | VCC– | Negative supply pin; must be connected to ground (single supply) or negative rail (dual supply); decoupling required. |
| 8 | VCC+ | Positive supply pin; accepts 2.7 V to 12 V; requires local 0.1 µF ceramic bypass capacitor to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers ±2.4 V output at ±2.5 V supply, preserving >96% signal amplitude in low-voltage audio chains. |
| Very low input voltage noise | 4.4 nV/√Hz at 100 kHz enables clean amplification of microvolt-level sensor outputs without SNR degradation. |
| Wide supply range | Operates from 2.7 V to 12 V - supports direct integration into Li-ion (3.0–4.2 V), USB-powered (5 V), and industrial 12 V systems. |
| High CMRR and PSRR | 90 dB CMRR and 70 dB SVR minimize interference from shared supply rails and digital switching noise in mixed-signal PCBs. |
| Thermal robustness | Rated for –40°C to +125°C operation with 113°C/W θJA in TSSOP-14 - sustains performance in enclosed enclosures without forced cooling. |
Applications
| Professional Audio Preamplifier | Portable Music Player Line-Out Stage |
|---|---|
|
Use Scenario: Amplifying low-output dynamic or condenser microphone signals before ADC sampling in studio-grade audio interfaces. IC Role / Device Role / Timing Role: Quad-channel precision op-amp providing DC-coupled, low-noise gain with rail-to-rail output swing to maximize dynamic range. Use Value: 4.4 nV/√Hz noise floor preserves signal integrity below –110 dBu, while ±2.4 V swing at ±2.5 V enables full-scale 24-bit ADC utilization. |
Use Scenario: Driving stereo headphone outputs and line-level analog outputs in compact tablet or DAP designs with Li-ion power. IC Role / Device Role / Timing Role: Dual-channel buffer and level-shifter delivering rail-to-rail output into 16–32 Ω headphones and 10 kΩ line inputs. Use Value: 2.7 V minimum supply allows direct connection to partially discharged batteries; 2.8 mA per amplifier extends playback time vs higher-IQ alternatives. |
| Industrial Sensor Signal Conditioning | Multi-Channel Data Acquisition Front-End |
|
Use Scenario: Conditioning outputs from strain gauges, RTDs, or thermocouples in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Quad op-amp performing gain, filtering, and reference buffering in isolated 4–20 mA or 0–10 V signal chains. Use Value: ±0.21 mV input offset and ±0.25 µV/°C drift enable <0.1% total error over temperature without calibration - reducing BOM cost and firmware complexity. |
Use Scenario: Simultaneous amplification and anti-alias filtering of four analog sensor channels prior to multiplexed ADC sampling. IC Role / Device Role / Timing Role: Quad op-amp configured as unity-gain buffers and active RC filters, synchronized via shared supply and layout. Use Value: Matched AC/DC performance across all four channels ensures consistent channel-to-channel gain and phase response, critical for coherent sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4134IPW | Lower noise (3.2 nV/√Hz), higher supply current (4 mA per amp), no rail-to-rail output (±2.1 V at ±2.5 V). | Better suited for ultra-low-noise studio mic preamps where power budget allows; less suitable for battery-powered rail-limited designs. | Choose OPA4134IPW when noise dominates design priority and supply headroom exceeds 2.5 V; TL974IPW preferred for portable, low-voltage, rail-to-rail output needs. |
| LMV434MTX | Higher noise (11 nV/√Hz), lower supply voltage (2.7–6 V only), smaller TSSOP-14 package (4.4 × 5.0 mm), lower IQ (1.3 mA per amp). | Targeted at cost-sensitive, space-constrained consumer electronics where moderate noise is acceptable. | Choose LMV434MTX for ultra-low-power portable devices with tight board area; TL974IPW preferred when audio fidelity or industrial-grade DC accuracy is required. |
Compared with OPA4134IPW and LMV434MTX, TL974IPW uniquely balances rail-to-rail output swing, 4.4 nV/√Hz noise, and 2.7–12 V supply flexibility - making it the optimal choice for multi-role applications spanning portable audio, sensor front-ends, and industrial analog I/O where both dynamic range and DC precision matter.
Availability
TL974IPW is available at Aetrix Electronics and suitable for professional audio circuits, portable music players, and industrial sensor signal conditioning requiring stable component supply and long-term production continuity.
Supply support for TL974IPW 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, embedded processing, and connectivity technologies, with decades of expertise in precision amplifiers and signal-chain solutions.
The TL97x family was designed specifically for low-noise, rail-to-rail output applications in battery-powered and portable instrumentation - emphasizing audio fidelity, DC accuracy, and wide supply flexibility without sacrificing thermal robustness.
FAQ
What is the maximum supply voltage rating for TL974IPW?
The absolute maximum supply voltage for TL974IPW is 15 V across VCC+ and VCC– terminals. However, the recommended operating range is 2.7 V to 12 V. Exceeding 12 V may degrade long-term reliability and is not characterized for performance; operation above 15 V risks permanent damage. Always use local 0.1 µF ceramic bypass capacitors on both supply pins.
Does TL974IPW support true rail-to-rail input operation?
No, TL974IPW features rail-to-rail *output* swing but not rail-to-rail *input*. Its common-mode input voltage range is specified as VCC– + 1.15 V to VCC+ – 1.15 V at 25°C. This means the inputs cannot accept signals within ~1.15 V of either supply rail. For true rail-to-rail input capability, consider TI's OPA4991 or similar complementary-input op-amps.
What is the thermal resistance (θJA) of TL974IPW in the PW package?
The junction-to-ambient thermal resistance (θJA) for TL974IPW in the 14-pin TSSOP (PW) package is 113°C/W, measured per JESD 51-5. This value assumes standard JEDEC 2-layer board conditions. Actual thermal performance improves with copper pour, thermal vias, and proper PCB layout - critical for sustained 2.8 mA per amplifier operation at high ambient temperatures.
Can TL974IPW drive capacitive loads directly?
TL974IPW is stable with up to 100 pF capacitive load in unity-gain configuration, as confirmed by 60° phase margin at 25°C. For loads >100 pF, external isolation resistor (RISO) is required - typically 10–50 Ω in series with the output - to maintain stability and prevent overshoot. Figure 5-18 and 5-19 in the datasheet provide detailed overshoot vs. capacitive load data.
Is TL974IPW suitable for single-supply operation at 3.3 V?
Yes, TL974IPW is fully specified for 3.3 V single-supply operation. With VCC+ = 3.3 V and VCC– = GND, it delivers rail-to-rail output swing from ~50 mV above GND to ~50 mV below 3.3 V (i.e., ~0.05–3.25 V), supports common-mode input from 1.15 V to 2.15 V, and maintains 10.6 MHz GBWP and 4.4 nV/√Hz noise. Input biasing must ensure signals stay within the valid common-mode range.
TL974IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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-TSSOP
TL974IPW FAQ
1.How can I place an order for TL974IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TL974IPW 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 TL974IPW reliable?
The price and inventory of TL974IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL974IPW is usually 5 days.
3.What payment methods are accepted for TL974IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL974IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL974IPW?
TL974IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL974IPW 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 TL974IPW?
For technical support, including TL974IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL974IPW requirements.
6.How does Aetrix verify that TL974IPW is sourced from the original manufacturer or authorized distributors?
All TL974IPW 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 TL974IPW meets industry standards.
7.What is the process for return or replacement of TL974IPW?
All TL974IPW units undergo pre-shipment inspection (PSI). If there is an issue with TL974IPW, 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 TL974IPW part is unused and in its original packaging.
Return procedure for TL974IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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