TL031CPE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
TL031CPE4 is an enhanced JFET-input low-power precision operational amplifier with 200 pA typical bias current and 87 dB common-mode rejection ratio. Its voltage-feedback architecture with internal compensation simplifies stable closed-loop design. Available in a through-hole DIP package for prototyping and instrumentation boards.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TL031CPE4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2421(MOQ 1000)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TL031CPE4?
- JFET input stage with 200 pA typical bias current minimizes leakage errors in high-impedance sensor interfaces and sample-and-hold circuits
- 87 dB typical CMRR with internal frequency compensation reduces external component count in precision differential signal conditioning stages
- Low-power precision architecture suits battery-operated instrumentation where quiescent current budget is constrained to microamp-level per channel
What is TL031CPE4 used for?
TL031CPE4 is used in precision instrumentation amplifiers, photodiode transimpedance amplifiers, and integrators where ultra-low input bias current is essential for measurement accuracy. Its JFET input allows use with high-impedance sensors such as pH electrodes and piezoelectric transducers without introducing significant offset from source impedance mismatch. The through-hole DIP package makes it suitable for laboratory bench instruments, educational prototyping, and repair of legacy precision test equipment.
What are the specifications of TL031CPE4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.0004 µA |
| Bias Current-Max (IIB) @25C | 0.0002 µA |
| Common-mode Reject Ratio-Min | 75dB |
| Common-mode Reject Ratio-Nom | 87dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.0002 µA |
| Input Offset Voltage-Max | 4500 µV |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | YES |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 1.5V/us |
| Slew Rate-Nom | 2.2V/us |
| Supply Current-Max | 0.28mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | BIFET |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 1000 |
| Voltage Gain-Min | 5000 |
| Wideband | NO |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the TL031CPE4 datasheet?
TL031CPE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TL031CPE4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the JFET input stage of TL031CPE4 benefit high-impedance sensor measurements?
TL031CPE4's JFET input limits bias current to 200 pA typical and 400 pA maximum. When connected to a 100 MΩ pH electrode source, the resulting voltage error is only 40 µV maximum, compared to several millivolts that would arise from a bipolar BJT-input op-amp with microamp-level bias current, preserving measurement accuracy in electrochemical sensing.
What common-mode rejection does TL031CPE4 provide, and how does this help in differential measurement circuits?
TL031CPE4 achieves 87 dB typical CMRR, which means a 1 V common-mode signal at the inputs produces less than 45 µV of differential output error. In Wheatstone bridge amplifiers and differential thermocouple interfaces, this level of rejection suppresses power-supply-coupled noise and ground loop interference without additional filtering stages.
Is TL031CPE4 suitable as a transimpedance amplifier front-end for a photodiode detector?
Yes. TL031CPE4 is well matched to transimpedance amplifier designs with feedback resistors of 10 MΩ or higher because its 200 pA typical bias current contributes only 2 mV of DC offset at 10 MΩ. The internal frequency compensation keeps the amplifier stable with the large RC time constant formed by the feedback resistor and photodiode junction capacitance of 5 pF to 50 pF, making it suitable for optical receivers and low-light photometric instruments.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $0.3241 | $324.10 |
| 10000+ | $0.2890 | $2890.00 |
| 100000+ | $0.2421 | $24210.00 |
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