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Texas Instruments TL084CPWR
- Part No.:
- TL084CPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TL084CPWR.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,365
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Product details
Overview
TL084CPWR from Texas Instruments is a quad JFET-input operational amplifier optimized for precision AC/DC signal conditioning in industrial and audio systems. It delivers 5.25 MHz gain-bandwidth, 20 V/μs slew rate, ±15 V supply operation, low 37 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail common-mode input range extending to VCC+. It is widely used in pro audio mixers and battery test equipment.
For engineers reviewing the TL084CPWR datasheet, TL084CPWR pinout, TL084CPWR application, or TL084CPWR equivalent, key selection criteria include its JFET-input architecture for ultra-low bias current (1 pA typ), quad-channel integration for space-constrained analog front-ends, and guaranteed performance across –40°C to 85°C ambient temperature.
Technical Context
The TL084CPWR implements a high-swing JFET differential input stage followed by a Class AB output stage, enabling wide common-mode input range (including VCC+) and fast overload recovery (<300 ns). Its internal compensation ensures unity-gain stability with capacitive loads up to 300 pF.
It operates from dual supplies of ±2.25 V to ±20 V (or single 4.5 V to 40 V), supports 10 kΩ minimum load, and features integrated EMI filtering and 1.5 kV HBM ESD protection - critical for motor drive and UPS applications where electrical noise and transients are prevalent.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad - enables four independent amplifiers on one die, reducing PCB area and inter-channel mismatch in multi-stage filters or sensor signal chains. |
| Gain-bandwidth product | 5.25 MHz - supports stable closed-loop operation up to ~500 kHz at gain = 10, suitable for anti-aliasing and active filter design. |
| Slew rate | 20 V/μs - allows faithful reproduction of 10 Vpp signals up to ~300 kHz without slew-induced distortion. |
| Input offset voltage | ±10 mV max (TL084C grade) - sets DC accuracy limit in precision instrumentation; typical value is ±3 mV. |
| Input bias current | 65–200 pA (typ 100 pA) - enables high-impedance sensor interfacing (e.g., piezoelectric, pH electrodes) without significant error. |
| Supply voltage range | ±2.25 V to ±20 V - accommodates both low-voltage portable systems and high-dynamic-range industrial rails. |
| Operating temperature | 0°C to 70°C - commercial-grade rating suitable for indoor embedded systems, lab equipment, and consumer audio. |
Pinout & Package
TSSOP-14 package (PW), 4.4 mm × 5.0 mm body, 0.65 mm pitch, thermally enhanced for surface-mount assembly in dense analog layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1IN− | Inverting input of amplifier A - connects to feedback network in inverting configurations; high-impedance JFET node. |
| 2 | 1IN+ | Non-inverting input of amplifier A - accepts high-Z sensor or reference signals without loading. |
| 3 | 1OUT | Output of amplifier A - drives 10 kΩ min load; capable of ±12 V swing into 10 kΩ at ±15 V supply. |
| 4 | VCC+ | Positive power supply - must be decoupled locally with ≥0.1 μF ceramic capacitor near pin. |
| 5 | 2IN+ | Non-inverting input of amplifier B - electrically isolated from other channels; matched to pin 2 for differential pair use. |
| 6 | 2IN− | Inverting input of amplifier B - shares same JFET process as pin 1; supports matched dual-opamp topologies. |
| 7 | 2OUT | Output of amplifier B - independently buffered; no crosstalk specification but >100 dB channel separation at DC. |
| 8 | VCC− | Negative power supply - return path for all four amplifiers; requires low-impedance ground plane connection. |
| 9 | 3OUT | Output of amplifier C - identical drive capability and thermal behavior as pins 3 and 7. |
| 10 | 3IN+ | Non-inverting input of amplifier C - pinout symmetry enables compact layout of cascaded or parallel amplifier stages. |
| 11 | 3IN− | Inverting input of amplifier C - matches pin 1/6 characteristics; usable for summing or difference amplification. |
| 12 | 4IN+ | Non-inverting input of amplifier D - completes quad set; supports independent gain stages per channel. |
| 13 | 4IN− | Inverting input of amplifier D - fully functional; no NC (no-connect) pins in TSSOP-14 variant. |
| 14 | 4OUT | Output of amplifier D - full rail-swing capability; short-circuit protected to ±26 mA. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 65–200 pA typical - preserves signal integrity when interfacing megohm-level sources like photodiodes or electret microphones. |
| Wide common-mode input range | Extends to VCC+ - eliminates need for level-shifting in single-supply sensor interfaces where input exceeds mid-rail. |
| Integrated EMI/RF filtering | 53 dB EMI rejection at 1 GHz - suppresses cellular, Wi-Fi, and switching regulator noise without external ferrites. |
| Output short-circuit protection | ±26 mA continuous safe limit - prevents latch-up or thermal runaway during accidental output shorts in test equipment. |
| Low total harmonic distortion | 0.003% typ at 1 kHz - meets THD requirements for professional audio line drivers and ADC front-ends. |
Applications
| Pro Audio Mixer Channel Strip | Battery Test Equipment Signal Conditioning |
|---|---|
Use Scenario: Amplifying and summing microphone/line-level signals before ADC conversion in 16-channel digital mixer. IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous preamp gain, high-pass filtering, and balanced output buffering per channel. Use Value: JFET inputs prevent loading of passive EQ networks; 20 V/μs slew rate avoids clipping on transient drum hits. | Use Scenario: Precision voltage/current sensing during charge/discharge cycling of Li-ion cells in automated test systems. IC Role / Device Role / Timing Role: Configured as transimpedance amplifier for shunt current measurement and differential amplifier for cell voltage monitoring. Use Value: 65 pA input bias minimizes offset error in µA-range current sensing; ±10 mV offset enables <0.1% full-scale error. |
| Solar String Inverter Voltage Monitoring | Single-Phase Online UPS Feedback Control |
Use Scenario: Isolated DC-link voltage scaling and conditioning prior to isolation amplifier input in photovoltaic string inverters. IC Role / Device Role / Timing Role: Acts as high-impedance buffer and level translator between high-voltage divider and isolated ADC driver. Use Value: Common-mode input range to VCC+ allows direct connection to resistive dividers referenced to high-side rail without level shifters. | Use Scenario: Regulating inverter output voltage via analog feedback loop in line-interactive UPS systems. IC Role / Device Role / Timing Role: Implements error amplifier in voltage control loop, comparing sensed output to precision reference. Use Value: 5.25 MHz GBW ensures loop stability with fast transient response (<100 µs settling) to load steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL084IPWR | Industrial temperature grade (–40°C to +85°C), identical electrical specs and pinout. | Same use cases; preferred for extended ambient environments like factory floors or outdoor enclosures. | Select TL084IPWR when operating beyond 70°C ambient or requiring wider temp qualification. |
| TL074CPWR | Lower noise (18 nV/√Hz vs 37 nV/√Hz), lower quiescent current (1.4 mA/ch vs 2.5 mA/ch), same pinout. | Better suited for low-noise audio preamps; less ideal for high-speed pulse conditioning due to slower slew rate (13 V/μs). | Choose TL074CPWR for battery-powered audio gear where noise and power dominate; retain TL084CPWR for speed-critical industrial signal paths. |
Compared with TL084IPWR, TL084CPWR offers identical functionality at lower cost but lacks extended temperature validation; versus TL074CPWR, it trades higher noise and power for superior slew rate and transient fidelity in control loops.
Availability
TL084CPWR is available at Aetrix Electronics and suitable for pro audio mixer design, battery test equipment development, and solar inverter voltage monitoring requiring stable component supply and long-term manufacturability.
Supply support for TL084CPWR 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 over 50 years of op-amp innovation and broad industrial market presence.
The TL08x family was designed for cost-sensitive, general-purpose analog signal conditioning - delivering JFET-input performance with robustness for motor drives, UPS, and test equipment.
FAQ
What is the maximum capacitive load the TL084CPWR can drive stably?
The TL084CPWR is specified to drive up to 300 pF capacitively while maintaining phase margin >56° and avoiding oscillation. For loads exceeding 100 pF, TI recommends adding a small series resistor (10–100 Ω) between the output and capacitive node to isolate the amplifier's output impedance from the reactive load.
Does the TL084CPWR support single-supply operation?
Yes, the TL084CPWR supports single-supply operation from 4.5 V to 40 V. Its common-mode input range extends to VCC+, allowing inputs to reach the positive rail - a key advantage for single-supply sensor interfaces. However, output swing does not reach the rails; expect ~115 mV headroom from each supply rail under 10 kΩ load.
How does the TL084CPWR differ from the TL084IPWR?
The TL084CPWR is rated for 0°C to 70°C operation (commercial grade), while the TL084IPWR is qualified for –40°C to +85°C (industrial grade). All electrical specifications, pinout, and package are identical. The 'I' suffix denotes extended temperature validation - critical for deployment in uncontrolled ambient environments.
Can the TL084CPWR replace the TL074CPWR in an existing design?
Yes, the TL084CPWR is pin-compatible and functionally interchangeable with the TL074CPWR. However, it exhibits higher input voltage noise (37 nV/√Hz vs 18 nV/√Hz) and higher quiescent current (2.5 mA/ch vs 1.4 mA/ch), but delivers faster slew rate (20 V/μs vs 13 V/μs). Verify noise and power budgets before substitution.
Is input offset voltage adjustable on the TL084CPWR?
No, the TL084CPWR does not provide offset null pins. Unlike earlier TL084 variants (e.g., TL084ACN with offset adjust pins), the PW-package TL084CPWR uses a trimmed die with no external adjustment capability. Offset is factory-set to ≤±10 mV (max) at 25°C, with drift of ±18 µV/°C over temperature.
TL084CPWR 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:
- J-FET
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 13V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 1.4mA (x4 Channels)
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TL084CPWR FAQ
1.How can I place an order for TL084CPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL084CPWR 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 TL084CPWR reliable?
The price and inventory of TL084CPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL084CPWR is usually 5 days.
3.What payment methods are accepted for TL084CPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL084CPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL084CPWR?
TL084CPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL084CPWR 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 TL084CPWR?
For technical support, including TL084CPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL084CPWR requirements.
6.How does Aetrix verify that TL084CPWR is sourced from the original manufacturer or authorized distributors?
All TL084CPWR 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 TL084CPWR meets industry standards.
7.What is the process for return or replacement of TL084CPWR?
All TL084CPWR units undergo pre-shipment inspection (PSI). If there is an issue with TL084CPWR, 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 TL084CPWR part is unused and in its original packaging.
Return procedure for TL084CPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL084CPWR Tags
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