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Texas Instruments TLC084IN
- Part No.:
- TLC084IN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC084IN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:412
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Product details
Overview
TLC084IN from Texas Instruments is a quad-channel BiMOS operational amplifier optimized for single-supply operation across 4.5 V to 16 V, delivering 10 MHz bandwidth, ±57 mA output drive, and 16 V/µs positive slew rate. It operates over –40°C to 125°C and is used in industrial sensor signal conditioning where rail-to-rail input capability and high-current drive into capacitive loads are required.
For engineers reviewing the TLC084IN datasheet, TLC084IN pinout, TLC084IN application, or TLC084IN equivalent, key selection criteria include guaranteed ground-sensing common-mode input range (VICR = GND to VDD–2 V), ultralow shutdown current (125 µA/channel), and 14-pin plastic DIP package compatibility with legacy through-hole layouts.
Technical Context
The TLC084IN integrates a low-noise CMOS front end with a high-drive bipolar output stage in TI's LBC3 BiCMOS process, enabling simultaneous high input impedance (>1 TΩ differential) and robust output sourcing/sinking. Its architecture supports stable unity-gain operation with up to 50 pF load capacitance without external compensation.
Unlike TL08x predecessors, it features an extended industrial temperature grade (–40°C to 125°C), ensured VICR including ground, and 4× lower max input offset voltage (2000 µV vs. 8000 µV). Shutdown control is implemented per-amplifier pair via dedicated SHDN pins (pins 5 and 10), enabling selective channel disable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 10 MHz - enables accurate amplification of signals up to audio and low-speed data acquisition frequencies. |
| Output Drive | ±57 mA - drives heavy loads such as ADC input buffers, relay drivers, or cable interfaces without external transistors. |
| Slew Rate | +16 V/µs / –19 V/µs - supports fast transient response in pulse amplification and active filter stages. |
| Supply Range | 4.5 V to 16 V - compatible with 5 V, 12 V, and battery-backed industrial power rails. |
| Input Offset Voltage | Max 2000 µV (I-suffix, full temp range) - ensures precision in DC-coupled sensor front ends without trimming. |
| Shutdown Current | 125 µA/channel - reduces system standby power by >93% versus active mode (1.9 mA/channel). |
| Common-Mode Range | GND to VDD–2 V - accepts 0 V referenced inputs directly, eliminating level-shifting circuitry. |
Pinout & Package
Package: 14-pin plastic DIP (N package), through-hole mount, 0.300-inch wide body, RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier A output - delivers full ±57 mA drive into loads referenced to GND or VDD. |
| 2 | 1IN– | Inverting input of Amp A - high-impedance node (1 TΩ) for feedback network connection. |
| 3 | 1IN+ | Non-inverting input of Amp A - accepts signals down to GND, enabling single-supply instrumentation amps. |
| 4 | GND | Analog ground reference - must be low-impedance star point for all four amplifiers' bias and load return paths. |
| 5 | 1/2SHDN | Shutdown control for Amps A & B - logic-low (<0.8 V) disables both channels, reducing IDD to 125 µA total. |
| 6 | VDD | Positive supply rail - powers all four amplifiers; decoupling capacitor required at pin. |
| 7 | 2OUT | Amplifier B output - independent output stage with same drive capability as Pin 1. |
| 8 | 2IN– | Inverting input of Amp B - electrically isolated from other channels; no internal crosstalk. |
| 9 | 2IN+ | Non-inverting input of Amp B - identical input characteristics to Pin 3. |
| 10 | 2/3SHDN | Shutdown control for Amps C & D - separate logic control from Pin 5, enabling asymmetric channel management. |
| 11 | 3OUT | Amplifier C output - third independent output; shares VDD and GND with other channels. |
| 12 | 3IN– | Inverting input of Amp C - matched input bias and offset specs across all four channels. |
| 13 | 3IN+ | Non-inverting input of Amp C - supports rail-to-rail input common-mode range. |
| 14 | 4OUT | Amplifier D output - fourth output; fully specified for THD+N <0.022% at 1 kHz with 8 VPP output. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Operates with inputs at GND, eliminating level shifters in single-supply sensor interfaces. |
| Per-pair shutdown control | Two independent SHDN pins (5 and 10) allow dynamic power gating of two amplifier pairs without affecting others. |
| High-output-current bipolar stage | Delivers ±57 mA while maintaining 10 MHz bandwidth-enables direct driving of 600 Ω audio lines or ADC sample-hold capacitors. |
| Low input noise voltage | 8.5 nV/√Hz at 1 kHz-supports low-level thermocouple and strain gauge signal amplification without added noise floor. |
| Stable with capacitive loads | Phase margin ≥37° with 50 pF load-allows direct connection to long traces or ADC input capacitors without isolation resistors. |
Applications
| Industrial Sensor Signal Conditioning | Audio Line Driver |
|---|---|
Use Scenario: Amplifying low-level outputs from RTDs, thermocouples, or bridge sensors in PLC analog input modules operating from 12 V rails. IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous gain, filtering, and buffer stages for four independent sensor channels. Use Value: Guaranteed –40°C to 125°C operation and 2000 µV max VIO ensure accuracy across factory floor temperature extremes without calibration drift. | Use Scenario: Driving balanced/unbalanced audio signals over 10 m cables in broadcast equipment with 600 Ω termination. IC Role / Device Role / Timing Role: Output buffer stage delivering ±57 mA into reactive loads while maintaining THD+N <0.022% at 1 kHz. Use Value: High slew rate (16 V/µs) preserves transient fidelity; 10 MHz bandwidth supports full 20 Hz–20 kHz audio spectrum. |
| Programmable Logic Controller (PLC) Analog Output | Active Filter Bank for Data Acquisition |
Use Scenario: Generating precise 0–10 V or 4–20 mA loop outputs in modular PLC I/O cards using DAC + op-amp configurations. IC Role / Device Role / Timing Role: Output amplifier with rail-to-rail input accepts DAC reference voltages down to 0 V and drives low-impedance loads. Use Value: GND-referenced VICR eliminates need for negative supply or charge pumps, simplifying PCB layout and BOM. | Use Scenario: Implementing multi-pole anti-aliasing or reconstruction filters in 16-bit data acquisition systems sampling at ≤100 kSPS. IC Role / Device Role / Timing Role: Quad configuration enables cascaded Sallen-Key or MFB topologies without inter-stage buffering. Use Value: 10 MHz GBW and 19 V/µs negative slew rate support sharp roll-off filters with minimal phase distortion near cutoff. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL084CN | Lower bandwidth (3 MHz), no shutdown, higher VIO (max 15 mV), dual-supply only (±5 V to ±15 V). | Not suitable for single-supply systems or low-power shutdown modes; requires split rails. | Select TL084CN only if cost is primary constraint and design already uses dual supplies with relaxed AC performance. |
| OPA4134UA | FET-input (lower IIB: 10 pA), lower noise (8 nV/√Hz), but lower output drive (±25 mA) and no shutdown. | Better for ultra-high-impedance sources (e.g., photodiode amps); insufficient for 600 Ω line driving. | Choose OPA4134UA when input bias current dominates error budget and output load ≤25 mA. |
Compared with TL084CN and OPA4134UA, the TLC084IN uniquely combines single-supply operation, per-pair shutdown, and ±57 mA drive-making it optimal for space-constrained industrial modules requiring mixed-signal flexibility and thermal robustness.
Availability
TLC084IN is available at Aetrix Electronics and suitable for industrial sensor interfaces, programmable logic controller (PLC) analog I/O, and audio line driver designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC084IN 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 over 50 years of innovation in precision amplifiers and industrial-grade ICs.
The TLC08x family was designed specifically for industrial and automotive signal conditioning applications demanding single-supply operation, high output drive, and extended temperature reliability-replacing legacy TL08x devices with improved bandwidth, noise, and dc accuracy.
FAQ
What is the maximum operating temperature range for the TLC084IN?
The TLC084IN is rated for operation from –40°C to +125°C, meeting extended industrial temperature requirements. This specification is confirmed in the "Recommended Operating Conditions" table of the official datasheet (SLOS254F), where the "I-suffix" denotes the –40°C to 125°C grade. The device maintains full parameter guarantees-including input offset voltage, slew rate, and output drive-across this entire range.
Does the TLC084IN support true rail-to-rail input operation?
The TLC084IN supports common-mode input voltage from GND to VDD–2 V-not full rail-to-rail. Its VICR specification explicitly states "GND to VDD–2 V" under recommended conditions. This allows direct connection of 0 V-referenced sensor signals without level shifting, but inputs cannot safely reach the positive rail. The datasheet confirms this behavior in both electrical characteristics tables and typical performance curves.
How many independent shutdown controls does the TLC084IN provide?
The TLC084IN provides two independent shutdown controls: Pin 5 (1/2SHDN) disables Amplifiers A and B, while Pin 10 (2/3SHDN) disables Amplifiers C and D. Each control requires a logic-low voltage ≤0.8 V to activate shutdown, reducing supply current per channel to 125 µA. This dual-control architecture enables flexible power management in multi-channel systems without disabling all amplifiers simultaneously.
What package type is used for the TLC084IN part number?
The TLC084IN uses a 14-pin plastic DIP (dual in-line package), denoted by the "N" suffix in TI's packaging nomenclature. This through-hole package has a 0.300-inch body width and is compatible with standard wave-solder and manual assembly processes. The "I" in TLC084IN indicates the –40°C to 125°C temperature grade, while "N" unambiguously specifies the PDIP-14 package per TI's official ordering information tables.
Can the TLC084IN drive a 600 Ω load at 10 VPP without distortion?
Yes-the TLC084IN delivers <0.022% THD+N at 1 kHz with 8 VPP output into a 10 kΩ load, and its ±57 mA output current capability exceeds the 16.7 mA peak required for 10 VPP into 600 Ω. The datasheet confirms stable operation with 50 pF capacitive loads and provides VOH/VOL curves showing <0.65 V drop at 50 mA sink/source, ensuring clean 10 VPP swing on a 12 V supply. Performance is validated across the full –40°C to 125°C range.
TLC084IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 16V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 390 µV
- Current - Supply:
- 1.9mA (x4 Channels)
- Current - Output / Channel:
- 57 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLC084IN FAQ
1.How can I place an order for TLC084IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC084IN 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 TLC084IN reliable?
The price and inventory of TLC084IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC084IN is usually 5 days.
3.What payment methods are accepted for TLC084IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC084IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC084IN?
TLC084IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC084IN 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 TLC084IN?
For technical support, including TLC084IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC084IN requirements.
6.How does Aetrix verify that TLC084IN is sourced from the original manufacturer or authorized distributors?
All TLC084IN 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 TLC084IN meets industry standards.
7.What is the process for return or replacement of TLC084IN?
All TLC084IN units undergo pre-shipment inspection (PSI). If there is an issue with TLC084IN, 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 TLC084IN part is unused and in its original packaging.
Return procedure for TLC084IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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