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Texas Instruments TLV2631ID
- Part No.:
- TLV2631ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2631ID.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,068
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Product details
Overview
TLV2631ID 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 730 µA supply current per channel, and supports −40°C to 125°C operation. Its ground-sensing input range (VICR = GND to VDD−1 V) enables direct interfacing with ground-referenced sensors in battery-powered data acquisition systems.
For engineers reviewing the TLV2631ID datasheet, TLV2631ID pinout, TLV2631ID application, or TLV2631ID equivalent, key selection criteria include its 9 MHz GBW at ultralow quiescent current, rail-to-rail output swing into 2 kΩ loads, shutdown capability (IDD(SHDN) = 4 µA), and SOIC-8 packaging compatible with industrial temperature-grade PCB layouts.
Technical Context
The TLV2631ID uses a CMOS input stage enabling picoampere-level input bias current (1–50 pA typical) and high input impedance (>1 GΩ), critical for high-impedance sensor buffering. Its rail-to-rail output stage achieves VOH ≥ 2.67 V and VOL ≤ 0.1 V at VDD = 2.7 V with 1 mA load, supporting full dynamic range utilization in single-supply signal chains.
Designed for stability with capacitive loads up to 10 pF (phase margin ≥50°), it features internal compensation and specified performance across −40°C to 125°C. The device lacks shutdown functionality-confirmed by ordering code "TLV2631ID" (vs. "TLV2630ID" with SHDN) and absence of shutdown pin in SOIC-8 pinout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - Enables direct operation from Li-ion cells (3.0–4.2 V) or 3.3 V microcontroller rails without regulation. |
| Gain-Bandwidth Product | 9 MHz - Supports stable unity-gain buffer configurations up to ~9 MHz or closed-loop gains of 10 at ~900 kHz in precision ADC driver roles. |
| Supply Current per Channel | 730 µA - Delivers high-speed performance while maintaining microcontroller-compatible power budgets in portable instrumentation. |
| Input Common-Mode Range | GND to VDD−1 V - Allows direct connection of ground-referenced transducers (e.g., thermocouples, resistive bridges) without level-shifting circuitry. |
| Output Voltage Swing | Within 100 mV of rails (VDD = 2.7 V, IO = ±1 mA) - Maximizes usable signal headroom in 2.7 V systems, improving SNR in 12-bit+ data converters. |
| Input Offset Voltage | 250 µV (typ), 4500 µV (max) - Sufficient for millivolt-level sensor amplification where chopper-stabilized drift is not required. |
| Operating Temperature | −40°C to 125°C - Qualified for under-hood automotive sensing, industrial motor control feedback, and factory-floor PLC analog I/O modules. |
Pinout & Package
TLV2631ID is housed in an 8-pin SOIC (Package Code D) with standard JEDEC MS-012AC footprint (5.3 mm × 6.2 mm). Thermal resistance ΘJA = 176°C/W enables operation at full rated temperature with minimal heatsinking.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (IN−) | Differential input node; high-impedance CMOS input (IIB = 1–50 pA) suitable for precision feedback networks. |
| 2 | Non-Inverting Input (IN+) | High-impedance input accepting signals from GND to VDD−1 V; enables ground-referenced sensor interface. |
| 3 | Output (OUT) | Rail-to-rail output capable of sourcing/sinking ±28 mA (VDD = 5 V); drives 2 kΩ loads with <0.1 V saturation. |
| 4 | Ground (GND) | Power and reference ground return; must be low-impedance path to minimize noise coupling in mixed-signal PCBs. |
| 5 | No Connect (NC) | Internally unconnected pin; left floating or tied to GND per layout best practices to reduce parasitic coupling. |
| 6 | No Connect (NC) | Internally unconnected pin; no electrical function; avoid routing sensitive traces adjacent to this pad. |
| 7 | Positive Supply (VDD) | Single-supply rail input; accepts 2.7–5.5 V; PSRR = 70 dB ensures immunity to digital supply noise in MCU-integrated systems. |
| 8 | Output (OUT) | Redundant output pin - not used; TLV2631ID is single-channel; pin 8 is NC per official SOIC-8 pinout diagram. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >98% of full supply voltage range at 1 mA load, preserving dynamic range in low-voltage ADC front-ends. |
| Ground-sensing input range | Accepts common-mode voltages down to GND, eliminating need for external biasing in single-supply transducer interfaces. |
| 9 MHz gain-bandwidth at 730 µA | Enables high-fidelity buffering of fast pulses (e.g., encoder signals) while consuming less than 2.5 mW at 3.3 V. |
| Industrial temperature grade | Guaranteed operation from −40°C to 125°C supports deployment in harsh environments without derating or thermal management. |
| Low input bias current (1–50 pA) | Minimizes voltage error across high-value feedback resistors (e.g., 1 MΩ), critical for precision integrators and photodiode amps. |
Applications
| Portable Data Loggers | Industrial PLC Analog Inputs |
|---|---|
Use Scenario: Battery-powered environmental monitoring nodes acquiring temperature, humidity, and pressure via resistive/bridge sensors. IC Role / Device Role / Timing Role: Precision buffer and level-shifter for millivolt-level bridge outputs prior to 16-bit SAR ADC sampling. Use Value: Rail-to-rail output and ground-sensing inputs eliminate external biasing components, reducing BOM count and PCB area by 30% versus legacy op-amps. |
Use Scenario: 4–20 mA loop receiver modules in programmable logic controllers requiring cold-junction compensation for thermocouple inputs. IC Role / Device Role / Timing Role: Low-drift, high-Z input stage conditioning thermocouple voltage before digitization at 100 SPS. Use Value: 730 µA supply current enables integration of 8-channel analog front-end within 1 W thermal envelope of DIN-rail mounted PLC I/O cards. |
| Automotive Cabin Sensors | Medical Patient Monitoring |
Use Scenario: Occupant detection and air quality sensing in vehicle cabins using NDIR CO₂ and MEMS-based accelerometers. IC Role / Device Role / Timing Role: Signal conditioner for low-output MEMS accelerometers with DC-coupled output and wideband response. Use Value: 9 MHz GBW supports accurate pulse-width measurement of vibration events up to 500 kHz, meeting ISO 26262 ASIL-A timing requirements. |
Use Scenario: Portable ECG and pulse oximeter devices requiring ultra-low power analog front-end with clinical-grade accuracy. IC Role / Device Role / Timing Role: First-stage amplifier for dry-electrode biopotential signals, rejecting electrode half-cell DC offsets. Use Value: GND-to-VDD−1 V input range allows direct AC-coupling to electrodes without DC bias networks, simplifying FDA-cleared design validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA343IDBVR | Lower GBW (5.5 MHz), higher supply current (850 µA), wider VICR (−0.3 V to VDD+0.3 V). | Better for dual-supply designs needing negative input swing; less suitable for strict 2.7 V battery operation. | Select OPA343IDBVR when input overvoltage tolerance beyond rails is required, but expect 38% lower bandwidth at same power. |
| TLV2782CDR | Lower supply voltage (1.8–3.6 V), lower GBW (8 MHz), lower quiescent current (650 µA), narrower VICR (−0.2 V to VDD+0.2 V). | Optimized for sub-2 V coin-cell systems; not rated for 5.5 V or 125°C operation. | Choose TLV2782CDR only for space-constrained, ultra-low-voltage (<3.0 V) applications where 125°C rating is unnecessary. |
Compared with TLV2631ID, OPA343IDBVR offers enhanced input voltage range at the cost of bandwidth and efficiency, while TLV2782CDR trades industrial temperature capability and supply flexibility for marginal quiescent current reduction in low-voltage niche use cases.
Availability
TLV2631ID is available at Aetrix Electronics and suitable for portable instrumentation, industrial PLC analog I/O modules, and automotive cabin sensor subsystems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLV2631ID 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 and embedded processing technologies, with decades of expertise in precision amplifiers and industrial-grade signal chain solutions.
The TLV263x family was engineered for high-speed, low-power single-supply operation in industrial and automotive sensing front-ends-prioritizing rail-to-rail output, ground-sensing inputs, and robustness across −40°C to 125°C.
FAQ
What is the maximum operating supply voltage for TLV2631ID?
The absolute maximum supply voltage for TLV2631ID is 6 V, but the recommended operating range is strictly 2.7 V to 5.5 V per the datasheet. Exceeding 5.5 V risks permanent damage and invalidates parametric guarantees; operation at 5.5 V is fully characterized for all parameters including output swing and thermal dissipation in SOIC-8 package.
Does TLV2631ID include a shutdown pin?
No, TLV2631ID does not have a shutdown function. It is the non-shutdown variant in the TLV263x family-confirmed by its part number suffix "ID" (vs. "ID" for TLV2630ID with shutdown) and SOIC-8 pinout showing pins 5 and 6 as NC with no SHDN designation. Power control must be implemented externally via supply switching.
What is the input common-mode voltage range of TLV2631ID?
The input common-mode voltage range of TLV2631ID is GND to VDD−1 V across the full −40°C to 125°C temperature range. This allows direct interfacing with ground-referenced sources like thermistors or strain gauges without level-shifting circuitry, unlike amplifiers requiring input bias above GND.
Can TLV2631ID drive a 10 kΩ load with rail-to-rail output?
Yes, TLV2631ID maintains rail-to-rail output swing into 10 kΩ loads across its full temperature and supply range. At VDD = 2.7 V and TA = 25°C, VOH ≥ 2.67 V and VOL ≤ 0.03 V with 1 mA load (equivalent to 2.7 kΩ), confirming strong drive capability well beyond 10 kΩ-where output swing remains within 10 mV of rails.
Is TLV2631ID qualified for automotive applications?
TLV2631ID is not AEC-Q200 qualified, though its −40°C to 125°C operating range meets many automotive cabin ambient requirements. For under-hood or safety-critical systems, TI recommends AEC-Q200–qualified alternatives like TLV2631QDR; TLV2631ID is intended for industrial and commercial applications requiring extended temperature performance.
TLV2631ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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
TLV2631ID FAQ
1.How can I place an order for TLV2631ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2631ID 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 TLV2631ID reliable?
The price and inventory of TLV2631ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2631ID is usually 5 days.
3.What payment methods are accepted for TLV2631ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2631ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2631ID?
TLV2631ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2631ID 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 TLV2631ID?
For technical support, including TLV2631ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2631ID requirements.
6.How does Aetrix verify that TLV2631ID is sourced from the original manufacturer or authorized distributors?
All TLV2631ID 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 TLV2631ID meets industry standards.
7.What is the process for return or replacement of TLV2631ID?
All TLV2631ID units undergo pre-shipment inspection (PSI). If there is an issue with TLV2631ID, 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 TLV2631ID part is unused and in its original packaging.
Return procedure for TLV2631ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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