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Texas Instruments TLV2631IDR
- Part No.:
- TLV2631IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2631IDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,115
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Product details
Overview
TLV2631IDR from Texas Instruments is a single-channel, rail-to-rail output operational amplifier optimized for low-voltage, low-power industrial applications. It operates from 2.7 V to 5.5 V, delivers 9 MHz gain-bandwidth product at just 730 µA supply current per channel, and supports −40°C to +125°C operation - enabling use in Li-ion-powered sensor front-ends and high-resolution data acquisition systems.
For engineers reviewing the TLV2631IDR datasheet, TLV2631IDR pinout, TLV2631IDR application, or TLV2631IDR equivalent, this page provides verified technical context, package-specific pin mapping, real-world application scenarios, and validated alternative options for precision analog signal conditioning in space-constrained, wide-temperature designs.
Technical Context
The TLV2631IDR features a ground-referenced input common-mode range (GND to VDD−1 V) and rail-to-rail output swing, enabling direct interfacing with microcontrollers and ADCs operating at 2.7 V minimum supply. Its 9 MHz GBW and 9.5 V/µs negative slew rate support fast settling in unity-gain buffer and active filter configurations.
Designed for ultralow power without shutdown functionality, it draws only 730 µA per channel across full temperature range and exhibits 50 nV/√Hz input voltage noise and 0.003% THD+N at 10 kHz - making it suitable for high-fidelity signal amplification where power and distortion are critical constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion and MSP430 microcontrollers |
| Gain-Bandwidth Product | 9 MHz - enables stable unity-gain buffers and 2nd-order filters up to ~1.4 MHz |
| Supply Current per Channel | 730 µA - allows battery-operated systems to achieve >1-year runtime in continuous-sense mode |
| Input Common-Mode Range | GND to VDD−1 V - accepts ground-referenced sensors without level-shifting circuitry |
| Output Swing | Rail-to-rail - delivers full dynamic range into 2 kΩ load at 2.7 V supply |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive and industrial control environments |
| Input Voltage Noise | 50 nV/√Hz @ 1 kHz - preserves SNR in 16-bit+ SAR ADC driver stages |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.45 mm body, surface-mount, lead-free (NIPDAU), MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN− | Inverting Input | Differential input node; requires matched trace routing to minimize offset drift |
| 2 - IN+ | Non-Inverting Input | High-impedance node (1000 GΩ); sensitive to PCB leakage and contamination |
| 3 - GND | Analog Ground Reference | Must connect directly to low-impedance ground plane; separates analog return from digital |
| 4 - OUT | Amplifier Output | Capable of sourcing/sinking ±28 mA at 5 V; drives 2 kΩ loads to rail within 100 ns |
| 5 - VDD | Positive Supply Rail | Accepts 2.7–5.5 V; bypass with 100 nF ceramic capacitor placed ≤2 mm from pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >99% of supply rail voltage swing into 2 kΩ load, maximizing ADC input range |
| Ground-inclusive input range | Accepts signals from 0 V up to VDD−1 V - eliminates need for biasing resistors in single-supply sensor interfaces |
| 9 MHz bandwidth at 730 µA | Provides 3× higher bandwidth per µA than legacy low-power op-amps (e.g., TLV237x), reducing loop latency |
| −40°C to +125°C operation | Qualified for extended industrial temperature range without derating - no thermal compensation required |
| 50 nV/√Hz input noise | Enables <1 LSB error in 16-bit, 100 kSPS SAR ADC systems with 10 kΩ source impedance |
Applications
| Industrial Sensor Signal Conditioning | Portable Data Acquisition Front-End |
|---|---|
Use Scenario: Amplifying low-level output from RTD, thermocouple, or bridge-based pressure sensors in PLC I/O modules. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with gain = 100, driving 16-bit SAR ADC input. Use Value: Rail-to-rail output ensures full-scale utilization of ADC reference; ground-referenced input avoids external bias network. | Use Scenario: Battery-powered handheld multimeter or environmental monitor capturing analog sensor data. IC Role / Device Role / Timing Role: Unity-gain buffer isolating high-impedance pH or gas sensor electrodes from ADC sampling capacitance. Use Value: 730 µA quiescent current extends 2000 mAh Li-ion battery life to >18 months in sleep-wake measurement cycles. |
| Li-ion Powered Microcontroller Interface | High-Resolution Audio Line Driver |
Use Scenario: Level-shifting and buffering between 1.8 V logic outputs and 3.3 V analog subsystems in portable medical devices. IC Role / Device Role / Timing Role: DC-coupled voltage translator with gain = 1, maintaining signal integrity across supply domains. Use Value: Input range includes GND and output swings rail-to-rail - eliminates level-shifter ICs and reduces BOM count. | Use Scenario: Driving line-level audio signals (±1 V) into 10 kΩ loads in compact audio codecs or voice recorders. IC Role / Device Role / Timing Role: Low-distortion voltage follower with 0.003% THD+N at 10 kHz. Use Value: 50 nV/√Hz noise floor preserves dynamic range; 9.5 V/µs slew rate prevents slew-induced distortion on transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2782CDR | Lower supply voltage (1.8–3.6 V), 8 MHz GBW, 650 µA IQ, dual-channel only | Not pin-compatible; requires PCB redesign; suited for ultra-low-voltage dual-channel systems | Select when operating below 2.7 V or requiring dual amplifiers in same footprint |
| OPA343UA/2K5 | Higher supply current (850 µA), wider supply range (2.5–5.5 V), 5.5 MHz GBW, SOIC-8 only | SOIC-8 vs SOT-23-5 - larger board area; lower bandwidth limits high-frequency filtering | Choose when SOIC packaging is preferred and 5.5 MHz GBW suffices for target closed-loop bandwidth |
Compared with TLV2782CDR and OPA343UA/2K5, the TLV2631IDR offers superior bandwidth-per-microamp (12.3 kHz/µA), SOT-23-5 space efficiency, and guaranteed −40°C to +125°C performance - making it optimal for miniaturized, wide-temperature industrial signal chains where size and thermal robustness are primary constraints.
Availability
TLV2631IDR is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable data acquisition systems, and Li-ion-powered microcontroller peripheral conditioning requiring stable component supply across extended temperature ranges.
Supply support for TLV2631IDR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with over 90 years of innovation in precision analog design.
The TLV263x family was engineered for high-accuracy, low-power signal conditioning in space-constrained industrial and portable systems - emphasizing rail-to-rail operation, wide temperature resilience, and minimal quiescent current without sacrificing bandwidth.
FAQ
What is the maximum capacitive load the TLV2631IDR can drive stably?
The TLV2631IDR maintains ≥45° phase margin with up to 50 pF capacitive load when configured as a unity-gain buffer and terminated with a 100 Ω series resistor (Rnull). Without Rnull, stability degrades beyond 10 pF; for loads >50 pF, external compensation or a dedicated buffer stage is required. This behavior is confirmed in Figure 17 of the SLOS362A datasheet.
Does the TLV2631IDR have internal ESD protection, and what is its rating?
Yes, the TLV2631IDR includes integrated ESD protection diodes on all pins rated to ±2 kV HBM (Human Body Model) per JEDEC JESD22-A114. The device also meets IEC 61000-4-2 Level 2 (±4 kV contact discharge) when used with proper PCB layout - including short, low-inductance traces to ground and local 100 nF decoupling at VDD.
Can the TLV2631IDR be used in a single-supply photodiode transimpedance amplifier?
Yes, the TLV2631IDR is suitable for single-supply photodiode TIA applications when biased at mid-supply using a precision resistor divider and low-noise reference. Its 50 nV/√Hz input voltage noise and 0.9 fA/√Hz input current noise (at 1 kHz) enable sub-picoamp resolution; however, input bias current (1–50 pA) must be compensated via matched feedback network design.
What is the typical input offset voltage drift over temperature for TLV2631IDR?
The TLV2631IDR has a typical input offset voltage temperature coefficient (αVIO) of 3 µV/°C, measured from 25°C baseline. Over the full −40°C to +125°C range, maximum input offset voltage is specified at 4500 µV, resulting in worst-case drift of ~27 µV/°C - consistent with precision CMOS op-amp performance and sufficient for 12-bit accuracy in most industrial sensor interfaces.
Is the TLV2631IDR RoHS compliant and lead-free?
Yes, the TLV2631IDR is RoHS compliant and lead-free, with NIPDAU (nickel/palladium/gold) terminal finish. It carries MSL Level-1 (260°C peak reflow) qualification and is shipped in tape-and-reel format (3000 pcs/reel). Full compliance documentation, including material declarations and test reports, is available through TI's Quality & Environmental Information portal.
TLV2631IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 9 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 730µA
- Current - Output / Channel:
- 28 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2631IDR FAQ
1.How can I place an order for TLV2631IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2631IDR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLV2631IDR reliable?
The price and inventory of TLV2631IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2631IDR is usually 5 days.
3.What payment methods are accepted for TLV2631IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2631IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2631IDR?
TLV2631IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2631IDR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLV2631IDR?
For technical support, including TLV2631IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2631IDR requirements.
6.How does Aetrix verify that TLV2631IDR is sourced from the original manufacturer or authorized distributors?
All TLV2631IDR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLV2631IDR meets industry standards.
7.What is the process for return or replacement of TLV2631IDR?
All TLV2631IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2631IDR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLV2631IDR part is unused and in its original packaging.
Return procedure for TLV2631IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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