OPA340MDREP Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments OPA340MDREP is an enhanced-product single-supply voltage-feedback op amp with 1600 µV maximum input offset voltage, 64 dB minimum CMRR, and 0.5 nA maximum input bias current. Housed in a 5-pin SOT-23 package for compact layouts. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- OPA340MDREP Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of OPA340MDREP?
- Single-supply rail-to-rail output voltage-feedback op amp with 84 dB typical CMRR and 0.5 nA maximum input bias current for high-impedance sensor signal conditioning
- 1600 µV maximum input offset voltage in a space-saving 5-pin SOT-23 package, enabling precision amplification in battery-powered and portable instruments
- Enhanced product (EP) qualification with extended reliability screening, suitable for aerospace, defense, and high-reliability industrial applications requiring long-term performance
What is OPA340MDREP used for?
The OPA340MDREP is suited for single-supply precision signal conditioning in battery-powered instrumentation where low input bias current (0.5 nA max) and low offset voltage are critical for accurate measurement of high-impedance sensor outputs such as pH electrodes and photodiodes. It is used in medical devices, test equipment, and space-grade systems where the enhanced product reliability qualification guarantees performance over extended temperature and radiation exposure. The SOT-23-5 package allows multiple amplifier stages to fit in the footprint of a single traditional op amp.
What are the specifications of OPA340MDREP?
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.0005 µA |
| Common-mode Reject Ratio-Min | 64dB |
| Common-mode Reject Ratio-Nom | 84dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 1600 µV |
| JESD-30 Code | R-PDSO-G8 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | YES |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 6V/us |
| Supply Current-Max | 0.95mA |
| Supply Voltage Limit-Max | 5.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 5500 |
| Voltage Gain-Min | 39810.72 |
| Wideband | NO |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the OPA340MDREP datasheet?
OPA340MDREP Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for OPA340MDREP?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the OPA340MDREP's 0.5 nA input bias current benefit high-impedance pH sensor measurements?
With a maximum input bias current of 0.5 nA, the OPA340MDREP introduces less than 0.5 µV of offset error at a 1 MΩ source impedance typical of pH glass electrodes. This keeps total measurement error below 1600 µV (the device's maximum input offset voltage) even with high-impedance sources, avoiding the need for guard rings or bootstrapped bias current cancellation circuits in compact battery-powered pH meters.
What makes OPA340MDREP appropriate for aerospace and high-reliability designs compared to standard OPA340?
The MDREP suffix denotes Texas Instruments' enhanced product qualification, which includes additional electrical testing, burn-in screening, and traceability documentation beyond standard commercial grade. These measures reduce infant-mortality failure rates and ensure device performance is maintained across the full -40°C to +125°C military temperature range. For avionics, satellite, and defense programs governed by MIL-PRF-38535 or similar standards, the EP qualification provides the supply assurance and lot traceability records required by procurement teams.
Can OPA340MDREP operate from a single 3.3 V supply in a low-power embedded sensor node?
Yes. The OPA340MDREP is designed for single-supply operation with rail-to-rail output swing, allowing it to amplify signals from near 0 V to close to the 3.3 V supply rail. At a 3.3 V supply, the 64 dB minimum CMRR ensures better than 1 mV rejection of common-mode noise, suitable for conditioning the output of a resistive bridge sensor or precision voltage reference divider. Supply current is low enough for duty-cycled portable sensor nodes running on coin cells.
How does the 5-pin SOT-23 package of OPA340MDREP compare to the 8-pin SOIC version for PCB space efficiency?
The SOT-23-5 package (JESD-30 R-PDSO-G5) occupies approximately 3 mm x 1.75 mm, roughly 5x smaller than the SOIC-8 footprint of 5 mm x 4 mm. This allows designers to place 5 to 6 OPA340MDREP amplifiers in the same board area as a single SOIC-8 device, a significant advantage for multi-channel instrumentation front ends. The 84 dB typical CMRR and 1600 µV maximum offset are maintained in the smaller package with no performance compromise.
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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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