My Inquiry
My Account
Texas Instruments TL974IPWR
- Part No.:
- TL974IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TL974IPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,430
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TL974IPWR 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 high-fidelity headphone amplifiers and sensor signal conditioning stages.
For engineers reviewing the TL974IPWR datasheet, TL974IPWR pinout, TL974IPWR application, or TL974IPWR 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 instrumentation.
Technical Context
The TL974IPWR 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 without external compensation.
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), making it suitable for precision DC-coupled sensor interfaces and AC-coupled audio paths where distortion and noise floor are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 4.4 nV/√Hz at 100 kHz - enables high-SNR audio preamp stages without audible hiss |
| Output Swing | ±2.4 V at ±2.5 V supply - delivers full dynamic range into 2 kΩ loads near supply rails |
| Supply Range | 2.7 V to 12 V - supports single-supply 3.3 V/5 V systems and dual-supply ±2.5 V/±5 V operation |
| Gain-Bandwidth Product | 10.6 MHz - allows stable closed-loop gains up to ~100 at 100 kHz for anti-aliasing filters |
| Input Offset Drift | ±0.25 µV/°C - ensures <1 µV total drift over 0–70°C ambient, critical for DC-coupled sensors |
| Common-Mode Rejection | 90 dB typical - suppresses power supply ripple and shared-noise coupling in multi-channel systems |
| Operating Temperature | –40°C to +125°C - qualified for industrial-grade embedded audio and measurement equipment |
Pinout & Package
Packaged in a 14-pin TSSOP (PW) with 5.00 mm × 6.40 mm footprint and 0.65 mm lead pitch, the TL974IPWR supports high-density PCB layouts while maintaining thermal resistance of 149°C/W (θJA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 12 | IN+ | Non-inverting inputs for channels 1–4 - high-impedance (≥1012 Ω) nodes requiring guarded routing |
| 2, 6, 10, 13 | IN− | Inverting inputs for channels 1–4 - matched to IN+ for optimal CMRR and offset cancellation |
| 3, 7, 8, 14 | OUT | Amplified outputs - capable of ±65 mA sink/source, supporting direct drive of 100 Ω loads |
| 4 | VCC+ | Positive supply pin - requires local 0.1 µF ceramic bypass to ground for PSRR optimization |
| 11 | VCC− | Negative supply pin - must be decoupled independently when used in dual-supply configurations |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale signal headroom within 100 mV of supply rails, maximizing dynamic range in low-voltage systems |
| Low input voltage noise | 4.4 nV/√Hz enables clean amplification of microvolt-level sensor or microphone signals without SNR degradation |
| Wide supply range | Operates from 2.7 V to 12 V, eliminating need for separate LDOs in mixed-voltage portable designs |
| High CMRR & PSRR | 90 dB CMRR and 70 dB PSRR minimize error from supply ripple and common-mode interference in noisy environments |
| Quad-channel integration | Four independent amplifiers in one TSSOP-14 package reduce board area by >60% vs discrete SOIC-8 solutions |
Applications
| Professional Audio Preamplifier | Portable Medical Sensor Interface |
|---|---|
Use Scenario: Low-noise amplification of electret microphone or piezoelectric transducer signals in battery-powered ultrasound probes. IC Role / Device Role / Timing Role: Quad-channel signal conditioner providing gain, filtering, and buffering before ADC sampling. Use Value: 4.4 nV/√Hz noise floor preserves weak physiological signals; rail-to-rail output drives 12-bit SAR ADC reference range directly. | Use Scenario: Amplifying low-amplitude bio-potential signals (ECG, EEG) in handheld diagnostic devices. IC Role / Device Role / Timing Role: Instrumentation-grade front-end amplifier with DC-coupled input and high CMRR for common-mode rejection. Use Value: ±0.25 µV/°C offset drift ensures baseline stability over clinical operating temperatures; 90 dB CMRR rejects 50/60 Hz mains interference. |
| Industrial Process Monitoring | Audio Line Driver |
Use Scenario: Signal conditioning for 4–20 mA loop-powered temperature/pressure transmitters in factory automation. IC Role / Device Role / Timing Role: Precision current-to-voltage converter and buffer stage in analog front-end modules. Use Value: 2.7 V minimum supply enables operation from loop-powered rails; ±0.21 mV input offset minimizes zero-error in calibrated systems. | Use Scenario: Driving balanced/unbalanced line outputs in portable music players and DAC-based audio docks. IC Role / Device Role / Timing Role: Output buffer and level-shifter ensuring low-distortion delivery to 600 Ω professional audio loads. Use Value: ±2.4 V output swing at ±2.5 V supply delivers 12.8 Vpp headroom; THD = 0.003% maintains fidelity across 20 Hz–20 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4134IPW | Lower noise (3.2 nV/√Hz), higher supply current (4.5 mA/ch), no rail-to-rail output | Better for ultra-low-noise studio-grade audio; unsuitable for low-voltage rail-to-rail output requirements | Select when noise is primary constraint and supply headroom permits non-rail-to-rail swing |
| LMV884MT/NOPB | Higher noise (10 nV/√Hz), lower GBWP (1.2 MHz), rail-to-rail I/O, smaller 14-pin TSSOP | Suitable for cost-sensitive consumer audio; insufficient bandwidth for high-fidelity preamp filtering | Select for budget-tier portable audio where 10 nV/√Hz noise is acceptable and gain-bandwidth <2 MHz suffices |
Compared with OPA4134IPW and LMV884MT/NOPB, the TL974IPWR uniquely balances rail-to-rail output capability, 4.4 nV/√Hz noise, and 10.6 MHz bandwidth-making it optimal for compact, battery-powered audio and sensor systems requiring both precision and dynamic range.
Availability
TL974IPWR is available at Aetrix Electronics and suitable for portable medical devices, industrial process monitors, professional audio interfaces, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL974IPWR 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 amplifiers and signal-chain solutions.
The TL97x family was designed specifically for low-noise, rail-to-rail-output applications in portable and battery-powered equipment-emphasizing audio fidelity, sensor accuracy, and layout efficiency in space-constrained designs.
FAQ
What is the maximum supply voltage rating for TL974IPWR?
The TL974IPWR has an absolute maximum supply voltage rating of 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 operation above 15 V risks permanent damage per the Absolute Maximum Ratings table in the SLOS467I datasheet. The TL974IPWR is commonly operated at ±2.5 V, ±5 V, or single 5 V/12 V supplies within this safe window.
Does TL974IPWR support true rail-to-rail input operation?
No, the TL974IPWR 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 under recommended conditions. This means the input cannot accept signals within ~1.15 V of either supply rail. For example, at ±2.5 V supply, valid input range is –1.35 V to +1.35 V. The TL974IPWR uses a complementary NMOS/PMOS input pair, with performance degradation possible in the transition region near the rails.
What is the thermal resistance (θJA) of TL974IPWR in its TSSOP-14 package?
The TL974IPWR in the PW (TSSOP-14) package has a junction-to-ambient thermal resistance (θJA) of 149°C/W, as specified in Section 5.5 Thermal Information of the SLOS467I datasheet. This value assumes standard JEDEC JESD51-7 test conditions on a two-layer board with 1 in² copper pad. Actual thermal performance improves with enhanced PCB copper area, internal ground/power planes, or thermal vias-critical for sustained 3.2 mA per amplifier operation at elevated ambient temperatures.
Can TL974IPWR drive capacitive loads without instability?
The TL974IPWR is unity-gain stable but exhibits reduced phase margin with increasing capacitive load. Figure 5-7 shows phase margin drops from ~64° at 0 pF to ~45° at 130 pF and ~30° at 250 pF. For loads >100 pF, TI recommends adding a small series isolation resistor (RISO ≈ 10–50 Ω) between the output and capacitance to restore stability. The TL974IPWR's open-loop output impedance (Figure 5-15) confirms this sensitivity, necessitating careful layout and load management in high-speed or long-cable applications.
Is TL974IPWR pin-compatible with other quad op-amps in TSSOP-14 packages?
The TL974IPWR follows the industry-standard TSSOP-14 pinout for quad op-amps (e.g., pins 1/5/9/12 = IN+, 2/6/10/13 = IN−, 3/7/8/14 = OUT, 4 = VCC+, 11 = VCC−), matching devices like LM324, TL074, and OPA4340. However, electrical characteristics-including noise, bandwidth, supply current, and input structure-differ significantly. While PCB layout reuse is possible, circuit validation is required due to differences in input bias current (±0.01 nA vs. ~45 nA for LM324) and output drive capability (±65 mA vs. ±20 mA for TL074).
TL974IPWR 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:
- 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
TL974IPWR FAQ
1.How can I place an order for TL974IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL974IPWR 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 TL974IPWR reliable?
The price and inventory of TL974IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL974IPWR is usually 5 days.
3.What payment methods are accepted for TL974IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL974IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL974IPWR?
TL974IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL974IPWR 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 TL974IPWR?
For technical support, including TL974IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL974IPWR requirements.
6.How does Aetrix verify that TL974IPWR is sourced from the original manufacturer or authorized distributors?
All TL974IPWR 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 TL974IPWR meets industry standards.
7.What is the process for return or replacement of TL974IPWR?
All TL974IPWR units undergo pre-shipment inspection (PSI). If there is an issue with TL974IPWR, 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 TL974IPWR part is unused and in its original packaging.
Return procedure for TL974IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL974IPWR 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…
