TL031CD Texas Instruments In Stock
TL031CD is a single low-power operational amplifier by Texas Instruments in an 8-pin SOIC package. Key specs: 3 V to 32 V supply range, low quiescent current under 500 µA, rail-to-rail compatible inputs. From stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.3500(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TL031CD?
- Single low-power op-amp with quiescent current under 500 µA, extending battery life in portable and energy-harvesting designs
- Wide supply voltage range from 3 V to 32 V (or ±1.5 V to ±16 V split) accommodates diverse power architectures from coin-cell to industrial 24 V rails
- 8-pin SOIC package provides a familiar, hand-solderable footprint with broad PCB library support and simple drop-in replacement compatibility
- Unity-gain stability and internal frequency compensation simplify circuit design by eliminating external compensation networks in inverting and non-inverting amplifier configurations
What is TL031CD used for?
The TL031CD is ideal for battery-powered sensor interfaces, portable medical devices, and low-power instrumentation circuits where quiescent current under 500 µA is required to extend operating life. Its wide 3 V to 32 V supply range makes it versatile enough for designs ranging from 3.3 V microcontroller-based systems to 24 V industrial analog front-ends. The standard 8-pin SOIC packaging simplifies integration into existing op-amp footprints for active filtering, voltage following, and signal level-shifting applications.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for TL031CD?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the TL031CD's sub-500 µA quiescent current benefit a design powered by a 3 V coin cell?
With quiescent current under 500 µA from a 3 V supply, the TL031CD draws less than 1.5 mW continuously, allowing a 220 mAh CR2032 coin cell to power the amplifier alone for over 400 hours. This makes it practical for always-on sensing nodes in wireless temperature monitors, asset trackers, and wearable devices where replacing batteries every few months is unacceptable.
Can the TL031CD operate from a split ±15 V supply in a legacy industrial instrumentation circuit?
Yes. The TL031CD supports split supplies up to ±16 V (total 32 V), fully encompassing the standard ±15 V industrial rail. This lets it replace older JFET or bipolar op-amps in 4–20 mA transmitter loops, pressure-sensor signal conditioners, and analog PID controllers without requiring a new power supply, while cutting standby power by a factor of 2–5× compared to general-purpose alternatives drawing 1–2 mA.
Which amplifier configurations are supported by the TL031CD without adding external compensation components?
The TL031CD is internally frequency-compensated for unity-gain stability, meaning inverting amplifiers at gains of −1 V/V, non-inverting buffers at 1 V/V, and higher-gain stages are all stable without any external compensation capacitors. This reduces the bill of materials by at least 1–2 components per amplifier stage and simplifies PCB layout by eliminating high-frequency compensation traces.
How does the 8-pin SOIC package of the TL031CD compare with a SOT-23-5 single op-amp in a tight layout?
The 8-pin SOIC body occupies roughly 19 mm², while a SOT-23-5 occupies only about 5 mm², saving approximately 75% board area. If space is critical, a SOT-23-5 variant with identical electrical specs is often preferable; however, the TL031CD's SOIC-8 offers wider pad spacing of 1.27 mm pitch, making hand-soldering and rework straightforward during prototype development or low-volume production of industrial sensing modules.
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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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| Qty. | Unit Price | Ext. Price |
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| 1+ | $0.7000 | $0.70 |
| 8+ | $0.5600 | $4.48 |
| 25+ | $0.5340 | $13.35 |
| 37+ | $0.3500 | $12.95 |
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