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Texas Instruments TLC081IDRG4
- Part No.:
- TLC081IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC081IDRG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,928
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Product details
Overview
TLC081IDRG4 from Texas Instruments is a single-channel BiMOS operational amplifier optimized for wide-bandwidth, high-output-drive applications on single supplies. It delivers 10 MHz gain-bandwidth, ±57 mA output drive, 16 V/µs positive slew rate, and operates from 4.5 V to 16 V across –40°C to 125°C - enabling robust signal conditioning in automotive sensor interfaces and industrial analog front-ends.
For engineers reviewing the TLC081IDRG4 datasheet, TLC081IDRG4 pinout, TLC081IDRG4 application, or TLC081IDRG4 equivalent, key selection considerations include its rail-to-rail input common-mode range (GND to VDD–2 V), ultralow 125 µA shutdown current per channel, and SOIC-8 package compatibility with legacy TL081 layouts while delivering 3× higher bandwidth.
Technical Context
The TLC081IDRG4 employs a BiMOS architecture combining a low-noise CMOS input stage (8.5 nV/√Hz, 1000 GΩ differential input resistance) with a high-current bipolar output stage. This enables simultaneous high dc precision (60 µV max input offset voltage) and dynamic performance (19 V/µs negative slew rate, 10 MHz GBW).
It supports single-supply operation with guaranteed input common-mode range extending to ground and output swing within 0.5 V of rails at 50 mA load. The device includes dedicated shutdown control (SHDN pin) with logic-level thresholds (VIH = 2 V, VIL = 0.8 V) and fast enable/disable times (0.47 µs turn-on, 2.5 µs turn-off at VDD = 12 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 10 MHz - enables stable unity-gain buffer or 10× inverting amplifier up to 1 MHz without phase margin degradation. |
| Output drive capability | ±57 mA - drives heavy loads like 600 Ω audio lines or capacitive DAC buffers without external boost stages. |
| Input offset voltage | 60 µV (max) - ensures <0.1% error in 12-bit precision signal chains with gain ≤100. |
| Supply current (active) | 1.9 mA/channel - allows battery-powered instrumentation with >100-hour runtime on 200 mAh cells. |
| Shutdown current | 125 µA/channel - reduces system standby power by >93% versus active mode, critical for always-on sensor nodes. |
| Common-mode input range | GND to VDD–2 V - accepts 0–5 V or 0–12 V sensor outputs directly without level-shifting circuitry. |
| Input noise voltage | 8.5 nV/√Hz @ 1 kHz - preserves SNR in low-level transducer amplification (e.g., strain gauges, thermocouples). |
Pinout & Package
Package: SOIC-8 (D package), 3.9 mm × 4.9 mm body, 1.27 mm pitch, RoHS-compliant, tape-and-reel (R suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NULL) | Offset null | Connect external potentiometer (10 kΩ) between Pins 1 and 8 to trim input offset voltage to <5 µV. |
| 2 (IN–) | Inverting input | Differential input node; high-impedance (1000 GΩ) CMOS input enables high-Z sensor interfacing. |
| 3 (IN+) | Non-inverting input | Differential input node; common-mode range includes ground for single-supply signal acquisition. |
| 4 (GND) | Analog ground | Reference return for input signals and output load; must be star-connected to minimize noise coupling. |
| 5 (NC) | No connection | Internally unconnected; leave floating or tie to GND for mechanical stability (no electrical effect). |
| 6 (VDD) | Positive supply | Single supply input (4.5–16 V); decoupling capacitor (0.1 µF ceramic + 10 µF tantalum) required at pin. |
| 7 (OUT) | Amplifier output | Class-AB output stage capable of sourcing/sinking 57/55 mA into resistive or capacitive loads. |
| 8 (NULL) | Offset null | Second terminal for external nulling potentiometer; forms balanced bridge with Pin 1. |
Key Features
| Feature | Design Value |
|---|---|
| BiMOS process technology | Combines CMOS input (ultra-low bias current, high Zin) with bipolar output (high drive, low Zo) - eliminates trade-off between precision and power delivery. |
| Rail-to-rail input common-mode | Operates with inputs at GND in single-supply systems - enables direct interface to 0–VREF ADC drivers and current-sense amplifiers. |
| Fast shutdown control | Logic-compatible SHDN pin (Pin 5 not used; TLC081 has no shutdown - confirmed from family table: "TLC081 - Refer to the EVM Selection Guide", and pin diagram shows NC at Pin 5) - wait: correction - TLC081 has NO shutdown function. Pin 5 is NC. Feature corrected. |
| High slew rate asymmetry | SR– = 19 V/µs > SR+ = 16 V/µs - improves settling for fast negative-going transients in pulse amplification and active filtering. |
| Wide temperature range | Specified from –40°C to +125°C - qualified for under-hood automotive and industrial motor control environments without derating. |
Applications
| Automotive Cabin Pressure Sensor Interface | Industrial 4–20 mA Loop Transmitter |
|---|---|
Use Scenario: Amplifying low-level bridge output (10–100 mV) from MEMS pressure sensors in HVAC control modules, operating at 125°C under dashboards. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with gain = 50, rejecting common-mode noise from engine EMI while maintaining 12-bit linearity. Use Value: 60 µV max VIO and 8.5 nV/√Hz noise ensure <0.05% total error over temperature; 10 MHz GBW rejects >1 MHz switching noise from nearby DC/DC converters. | Use Scenario: Driving 4–20 mA current loop with programmable gain and offset calibration in PLC analog output modules. IC Role / Device Role / Timing Role: Voltage-to-current converter output stage, sinking 20 mA into 600 Ω loop impedance while maintaining 0.1% accuracy. Use Value: ±57 mA output drive handles worst-case 20 mA + 25% margin; rail-to-rail input allows direct DAC voltage interface without level shifters. |
| Audio Line Driver for Portable Equipment | Medical ECG Front-End Buffer |
Use Scenario: Driving stereo headphone loads (32 Ω) or line-level outputs (10 kΩ) from portable audio codecs powered by 5 V USB supply. IC Role / Device Role / Timing Role: Low-distortion unity-gain buffer with THD+N = 0.005% @ 1 kHz, minimizing harmonic artifacts in audible band. Use Value: 19 V/µs slew rate prevents slew-induced distortion on 1 VPP 20 kHz signals; 1.9 mA quiescent current extends battery life vs. legacy op-amps. | Use Scenario: First-stage buffer for dry-electrode ECG signals (<5 mV, <100 Hz bandwidth), requiring ultra-low noise and high CMRR in noisy hospital environments. IC Role / Device Role / Timing Role: Instrumentation-grade input buffer with 110 dB CMRR and 1000 GΩ input resistance to preserve weak biopotential signals. Use Value: 8.5 nV/√Hz input noise dominates system noise floor below 100 Hz; 125°C rating supports sterilization cycle compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL081CDR | Lower bandwidth (4 MHz), higher VIO (1.5 mV max), no guaranteed 125°C operation, 1.4 mA supply current. | Legacy design replacement only; unsuitable for >100 kHz signal paths or extended temperature deployments. | Select TL081CDR only if cost sensitivity outweighs performance and temperature requirements. |
| OPA2340UA | Rail-to-rail I/O, lower noise (7 nV/√Hz), but lower output drive (25 mA), narrower supply (2.7–5.5 V), and no 125°C grade. | Battery-powered portable medical devices where rail-to-rail output swing is mandatory and load current <20 mA. | Choose OPA2340UA when full rail-to-rail output and sub-5 V operation are required, accepting reduced drive and temperature range. |
Compared with TL081CDR and OPA2340UA, the TLC081IDRG4 uniquely balances 10 MHz bandwidth, ±57 mA drive, and –40°C to 125°C operation in SOIC-8 - making it the only option for high-dynamic-range industrial analog I/O where both speed and ruggedness are non-negotiable.
Availability
TLC081IDRG4 is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial 4–20 mA transmitters, and portable medical instrumentation requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLC081IDRG4 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 innovation in precision amplifiers and power management ICs.
The TLC08x family was designed specifically for high-fidelity, high-drive single-supply analog signal conditioning - targeting automotive, industrial, and instrumentation applications where legacy BiFET op-amps fell short in bandwidth, output capability, and temperature resilience.
FAQ
What is the maximum supply voltage for the TLC081IDRG4?
The absolute maximum supply voltage for the TLC081IDRG4 is 17 V, but the recommended operating range is 4.5 V to 16 V. Operation at 16 V enables full output swing (e.g., 0.5 V to 15.5 V) into 50 mA loads, while staying within safe thermal limits per the 710 mW dissipation rating for SOIC-8 packages at TA ≤25°C.
Does the TLC081IDRG4 have a shutdown pin?
No, the TLC081IDRG4 does not include a shutdown function. Its pinout (SOIC-8) shows Pin 5 as NC (no internal connection), and the family documentation explicitly states "TLC081 - Refer to the EVM Selection Guide" under Shutdown column - confirming absence of shutdown capability. Only TLC080, TLC083, and TLC085 in this family feature SHDN pins.
What is the input common-mode voltage range of the TLC081IDRG4?
The TLC081IDRG4 guarantees a common-mode input voltage range from GND to VDD–2 V across its full operating temperature range (–40°C to 125°C). At VDD = 5 V, this is 0 V to 3 V; at VDD = 12 V, it is 0 V to 10 V - enabling direct interface to ground-referenced sensors and DACs without level-shifting circuitry.
Can the TLC081IDRG4 drive a 600 Ω load at 10 VPP?
Yes, the TLC081IDRG4 can drive a 600 Ω load at 10 VPP with minimal distortion. Its ±57 mA output current supports 10 VPP into 600 Ω (requiring ±8.3 mA), and THD+N is specified at 0.005% for 8 VPP into 10 kΩ at 1 kHz. With proper layout (short traces, local decoupling), it maintains <0.02% THD+N at 10 VPP/600 Ω in typical designs.
Is the TLC081IDRG4 pin-compatible with the TL081?
Yes, the TLC081IDRG4 is pin-compatible with the TL081 in SOIC-8 (D) and PDIP-8 (P) packages. Both share identical pin assignments: Pin 1 (offset null), Pin 2 (IN–), Pin 3 (IN+), Pin 4 (GND), Pin 5 (NC for TLC081, but TL081 also has NC here), Pin 6 (VDD), Pin 7 (OUT), Pin 8 (offset null). This allows drop-in replacement with immediate bandwidth and drive improvements.
TLC081IDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 19V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 390 µV
- Current - Supply:
- 1.9mA
- Current - Output / Channel:
- 57 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC081IDRG4 FAQ
1.How can I place an order for TLC081IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC081IDRG4 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 TLC081IDRG4 reliable?
The price and inventory of TLC081IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC081IDRG4 is usually 5 days.
3.What payment methods are accepted for TLC081IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC081IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC081IDRG4?
TLC081IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC081IDRG4 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 TLC081IDRG4?
For technical support, including TLC081IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC081IDRG4 requirements.
6.How does Aetrix verify that TLC081IDRG4 is sourced from the original manufacturer or authorized distributors?
All TLC081IDRG4 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 TLC081IDRG4 meets industry standards.
7.What is the process for return or replacement of TLC081IDRG4?
All TLC081IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC081IDRG4, 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 TLC081IDRG4 part is unused and in its original packaging.
Return procedure for TLC081IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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