TLC271IDG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TLC271IDG4 is a programmable low-power operational amplifier in SOIC-8 package with voltage-feedback architecture, 65 dB CMRR minimum, and 13 mV max input offset voltage. Available worldwide.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TLC271IDG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Programmable low-power operation with selectable bias modes for optimized power consumption
- Ultra-low input bias current of 0.06 nA max enabling high-impedance sensor interfaces
- Wide common-mode rejection ratio of 65 dB min / 80 dB typ for noise rejection
- Frequency compensation included for stable unity-gain operation
- SOIC-8 package for compact PCB layouts with standard surface-mount footprints
Applications
The TLC271IDG4 is well-suited for battery-powered instrumentation and sensor signal conditioning where low quiescent current is critical. Its ultra-low input bias current of 0.06 nA max makes it ideal for high-impedance transducer interfaces such as pH probes, photodiodes, and piezoelectric sensors. It also serves in comparator-adjacent filtering stages and portable medical monitoring devices where power budget and signal integrity are both priorities.
Specifications
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00006 µA |
| Bias Current-Max (IIB) @25C | 0.00006 µA |
| Common-mode Reject Ratio-Min | 65dB |
| Common-mode Reject Ratio-Nom | 80dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 13000 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | NO |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | YES |
| Programmable Power | YES |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 2.9V/us |
| Supply Current-Max | 2.5mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 1700 |
| Voltage Gain-Min | 10000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TLC271IDG4:
Rochester Electronics LLC OP-AMP, 13000uV OFFSET-MAX, 1.7MHz BAND WIDTH, PDSO8, GREEN, PLASTIC, MS-012AA, SOIC-8
Frequently Asked Questions
What is the input bias current specification for the TLC271IDG4 and why does it matter for sensor circuits?
The TLC271IDG4 has a maximum input bias current of 0.06 nA (60 pA) at 25°C, which is extremely low. This makes it suitable for high-impedance sources like pH probes or photodiodes where even small bias currents can create significant voltage errors across source resistances in the megohm range.
How does the programmable bias feature of the TLC271IDG4 help in a battery-powered design operating below 5 V?
The TLC271IDG4 supports selectable bias current modes, allowing designers to trade speed for lower quiescent current—useful in battery systems running at 3 V to 15 V supply rails. At the lowest bias setting, standby current can be reduced significantly, extending battery life in portable instruments sampling slowly.
What package does TLC271IDG4 use and what are its pin dimensions for PCB layout planning?
The TLC271IDG4 comes in an 8-pin SOIC (Small Outline IC) package with 1.27 mm pin pitch, a body width of approximately 3.9 mm, and overall length near 5 mm. This surface-mount format fits standard SOIC-8 footprints and simplifies automated assembly on compact PCBs.
Over what temperature range can TLC271IDG4 operate reliably in industrial applications?
The TLC271IDG4 is rated for industrial-grade operation from -40°C to +85°C, covering typical factory automation, outdoor sensing, and HVAC control environments. The 'I' grade designation confirms this extended temperature coverage compared to commercial 0°C to 70°C parts.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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