TL031CDRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TL031CDRG4 is an enhanced JFET-input, low-power precision operational amplifier in SOIC-8 package, featuring 70 dB minimum CMRR, 4.5 mV max input offset voltage, and 0.2 pA typical bias current. Designed for high-impedance sensor interfaces, precision signal conditioning, and instrumentation applications where ultra-low input bias current and low power consumption are critical. Available from authorized distributors worldwide with same-day shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TL031CDRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Enhanced JFET input stage with ultra-low bias current of 0.2 pA typical, ideal for high-impedance signal sources
- Low power consumption suitable for battery-operated and portable precision measurement systems
- Minimum 70 dB common-mode rejection ratio (87 dB typical) for superior noise rejection in differential measurements
- Maximum 4.5 mV input offset voltage for precision DC accuracy in instrumentation and sensor interfaces
- Frequency compensation included for stability across a wide range of load conditions
- SOIC-8 (Small Outline) package in RoHS-compliant, tape-and-reel (G4) format for automated PCB assembly
Applications
The TL031CDRG4 is well-suited for precision instrumentation amplifiers, medical measurement equipment, and scientific data acquisition systems where ultra-low input bias current is essential for high-impedance sensor interfacing. It is commonly deployed in pH meter front-ends, photodiode transimpedance amplifiers, precision integrators, and industrial process control signal conditioning circuits. Its low power profile also makes it attractive for portable and battery-powered analog measurement devices requiring long operational lifetime.
Specifications
| 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 | 70dB |
| 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-PDSO-G8 |
| 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 | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 2.2V/us |
| Supply Current-Max | 0.25mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BIFET |
| Temperature Grade | COMMERCIAL |
| 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 | 1000 |
| Voltage Gain-Min | 4000 |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input bias current of the TL031CDRG4?
The TL031CDRG4 features an ultra-low input bias current of 0.2 pA typical at 25°C and a maximum average bias current of 0.4 pA, making it ideal for interfacing with high-impedance sensors such as photodiodes, pH electrodes, and piezoelectric transducers without loading the signal source.
What is the common-mode rejection ratio (CMRR) of the TL031CDRG4?
The TL031CDRG4 provides a minimum CMRR of 70 dB and a typical CMRR of 87 dB. This high common-mode rejection ensures accurate differential signal amplification in noisy industrial environments, making it suitable for instrumentation amplifier front-ends and sensor bridge measurement circuits.
What package does the TL031CDRG4 come in and what does the G4 suffix mean?
The TL031CDRG4 is supplied in an SOIC-8 (Small Outline Integrated Circuit, 8-pin) package. The 'D' suffix denotes the SOIC package, 'R' indicates tape-and-reel packaging, and 'G4' signifies RoHS-compliant and lead-free (Pb-free) construction per Texas Instruments' green product designation, meeting international environmental standards.
What is the maximum input offset voltage of the TL031CDRG4?
The TL031CDRG4 specifies a maximum input offset voltage of 4,500 µV (4.5 mV). For applications requiring tighter DC accuracy, Texas Instruments offers other precision op-amp variants with lower offset voltages. This offset should be considered when designing precision DC measurement or integrator circuits using this device.
Is the TL031CDRG4 RoHS compliant and suitable for lead-free PCB assembly?
Yes, the TL031CDRG4 is fully RoHS compliant and lead-free, as indicated by the G4 suffix in its part number. It is compatible with standard lead-free soldering processes including SAC305 and is available in tape-and-reel format for automated surface-mount PCB assembly in high-volume manufacturing environments.
What are the typical applications for the TL031CDRG4 operational amplifier?
The TL031CDRG4 is widely used in precision instrumentation, medical measurement equipment, photodiode transimpedance amplifiers, pH meter front-ends, precision integrators, and industrial sensor signal conditioning. Its combination of JFET inputs with ultra-low bias current and low power consumption makes it particularly effective in portable scientific instruments, data acquisition systems, and any application requiring accurate amplification of signals from high-impedance sources.
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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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