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Texas Instruments TLV2231IDBVT
- Part No.:
- TLV2231IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV2231IDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:100
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Product details
Overview
TLV2231IDBVT from Texas Instruments is a single, rail-to-rail output, low-power LinCMOS™ operational amplifier in SOT-23-5 package. It delivers 2 MHz gain-bandwidth, 1.6 V/µs slew rate at 5 V, and 15 nV/√Hz input voltage noise - optimized for 3 V and 5 V single-supply operation in precision signal conditioning of high-impedance sources like piezoelectric transducers.
For engineers reviewing the TLV2231IDBVT datasheet, TLV2231IDBVT pinout, TLV2231IDBVT application, or TLV2231IDBVT equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, application-specific implementation insights, and two confirmed alternative op-amps with documented functional trade-offs.
Technical Context
The TLV2231IDBVT uses a CMOS input stage enabling ultra-low 1 pA typical input bias current and 1 TΩ common-mode input resistance, supporting accurate amplification of microamp-level sensor signals. Its rail-to-rail output swing (within 100 mV of rails at 1 mA load) ensures maximum dynamic range when interfacing directly with 3 V or 5 V ADCs.
It features internal compensation for unity-gain stability into 600 Ω loads and supports capacitive load drive up to 5000 pF with external isolation resistor (RISO). Phase margin remains ≥48° at 25°C with 100 pF load and 600 Ω termination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - enables direct use in 3 V battery-powered systems and 5 V industrial rails without level-shifting. |
| Gain-Bandwidth Product | 2 MHz at VDD = 5 V - supports stable closed-loop gain ≥10 at 200 kHz for anti-aliasing filter interfaces. |
| Slew Rate | 1.6 V/µs at VDD = 5 V - allows clean 1 VPP output at ≤800 kHz without slew-induced distortion. |
| Input Voltage Noise | 15 nV/√Hz at 1 kHz - preserves SNR in low-level audio preamplifier stages with source impedances <100 kΩ. |
| Input Bias Current | 1 pA typ - minimizes voltage error across high-value feedback networks (e.g., 10 MΩ resistors induce <10 µV offset). |
| Common-Mode Input Range | Includes negative rail (VDD–) - permits true single-supply operation with inputs referenced to ground in sensor front-ends. |
| Output Swing | Rail-to-rail - delivers full 0–3 V or 0–5 V output span into 600 Ω, matching SAR ADC reference ranges without headroom loss. |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 2.8 mm footprint, 5-pin surface-mount device with optimized layout - IN+ and IN− separated by GND to suppress coupling; OUT and IN− co-located for compact feedback routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: IN+ | Noninverting input | High-impedance node (1 TΩ) for biasing sensor outputs or reference voltages without loading. |
| 2: VDD–/GND | Negative power supply / ground reference | Return path for all input/output currents; must be low-impedance to maintain CMRR >55 dB. |
| 3: IN− | Inverting input | Connects to feedback network; placement adjacent to OUT minimizes parasitic inductance in high-speed loops. |
| 4: OUT | Amplified output | Capable of sourcing/sinking ±1 mA while maintaining rail-to-rail swing; drives 600 Ω telecom loads directly. |
| 5: VDD+ | Positive power supply | Accepts 2.7–10 V; decoupling capacitor (0.1 µF) required within 2 mm for stable 2 MHz operation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full-scale signal capture in 3 V/5 V ADC interfaces without supply headroom overhead. |
| 15 nV/√Hz input voltage noise | Preserves resolution in low-amplitude sensor amplification (e.g., thermopile, photodiode) below 10 kHz. |
| 1 pA input bias current | Eliminates significant offset drift in high-Z transducer circuits (e.g., pH electrodes, piezoelectric sensors). |
| 2.7 V minimum supply | Supports direct integration into coin-cell (3 V) and Li-ion (3.3–4.2 V) powered portable instrumentation. |
| Stable into 600 Ω loads | Meets telecom line-driver requirements without external buffering; simplifies BOM in optical module interfaces. |
Applications
| Low-Power Audio Preamplifier | Multiplexed Data-Acquisition System |
|---|---|
Use Scenario: Amplifying microphone or MEMS sensor outputs in battery-powered wearables with 3 V supply. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op-amp providing gain and DC-coupled buffering before ADC sampling. Use Value: 1 pA input bias prevents signal degradation from high-impedance mic capsules; 15 nV/√Hz noise maintains SNR >90 dB(A) at 1 kHz. | Use Scenario: Channel selection and signal conditioning in 16-channel industrial DAQ with shared 5 V rail. IC Role / Device Role / Timing Role: Per-channel buffer isolating multiplexer output from ADC input capacitance. Use Value: Rail-to-rail output ensures full 0–5 V swing into 10 kΩ ADC input; 2 MHz GBW supports settling in <500 ns after channel switch. |
| Optical Module Interface | Programmable Logic Controller Analog Input |
Use Scenario: Converting photodiode current to voltage in SFP+ transceivers operating at 3.3 V. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) front-end with low-noise, low-bias performance. Use Value: 1 pA bias current avoids dark-current errors; 15 nV/√Hz noise limits minimum detectable photocurrent to ~100 fA/√Hz. | Use Scenario: Conditioning 4–20 mA loop signals in DIN-rail mounted PLC I/O modules. IC Role / Device Role / Timing Role: Precision voltage follower and level shifter between isolated current-sense circuitry and 5 V ADC. Use Value: Common-mode input range including ground allows direct connection to shunt-resistor outputs; 3 mV max VIO ensures ≤0.015% gain error at 20 mA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Zero-drift architecture; 0.1 µV/°C VIO drift vs TLV2231IDBVT's 0.5 µV/°C; higher 350 µA supply current. | Better DC accuracy for long-term sensor monitoring; less suitable for ultra-low-power (<1 mA) battery apps. | Select OPA333AIDBVR when VIO drift dominates system error budget over temperature. |
| MCP6001UT-E/OT | Lower 1 MHz GBW and 0.6 V/µs slew rate; 100 nV/√Hz noise; same SOT-23-5 package and 1.8–6 V supply range. | Adequate for DC/low-frequency sensor buffering but not for audio or fast DAQ settling. | Select MCP6001UT-E/OT where cost sensitivity outweighs bandwidth/noise requirements. |
Compared with TLV2231IDBVT, OPA333AIDBVR trades higher quiescent current for superior DC stability, while MCP6001UT-E/OT offers lower cost at reduced AC performance - making TLV2231IDBVT the optimal balance of rail-to-rail output, low noise, and micropower operation in 3–5 V systems.
Availability
TLV2231IDBVT is available at Aetrix Electronics and suitable for low-power audio preamplifiers, multiplexed data-acquisition systems, and optical module interfaces requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for TLV2231IDBVT 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 delivering analog and embedded processing solutions, with deep expertise in precision amplifiers and low-power signal chain ICs.
The TLV2231IDBVT belongs to TI's LinCMOS™ op-amp family, designed specifically for rail-to-rail output performance and ultra-low input bias current in battery-powered and high-impedance sensor interface applications.
FAQ
What is the operating temperature range for TLV2231IDBVT?
The TLV2231IDBVT is rated for industrial operation from –40°C to +85°C, as indicated by the 'I' grade suffix in its part number. This range is validated per TI's recommended operating conditions and absolute maximum ratings - ensuring reliable performance in programmable logic controllers, server PSUs, and outdoor sensor nodes where ambient temperatures exceed commercial limits.
Does TLV2231IDBVT support rail-to-rail input?
No, TLV2231IDBVT does not support rail-to-rail input. Its common-mode input voltage range extends to the negative rail (VDD–) but stops 1.3 V below the positive rail (VDD+) - e.g., 0 V to 3.7 V at VDD = 5 V. This is sufficient for ground-referenced sensor signals but requires level-shifting for full-rail input applications.
Can TLV2231IDBVT drive a 600 Ω load effectively?
Yes, TLV2231IDBVT is fully characterized driving 600 Ω loads at both 3 V and 5 V supplies. At VDD = 5 V, it delivers rail-to-rail output swing (≥4.6 V high-level, ≤160 mV low-level at 1 mA) with 2 MHz bandwidth - meeting telecom line-driver requirements without external buffers, as confirmed in Section 6.6 of the official datasheet.
What is the typical input offset voltage for TLV2231IDBVT?
The typical input offset voltage for TLV2231IDBVT is 0.71 mV at VDD = 5 V and 25°C, with a maximum of 3 mV across the full industrial temperature range (–40°C to +85°C). This value is specified in Section 6.6 of the TI datasheet and enables ≤0.015% gain error in 4–20 mA PLC input stages using standard 250 Ω shunts.
Is TLV2231IDBVT pin-compatible with other SOT-23-5 op-amps?
TLV2231IDBVT follows the industry-standard SOT-23-5 pinout (IN+, GND, IN−, OUT, VDD+), matching devices like MCP6001 and OPA333. However, functional compatibility depends on supply range, bandwidth, and noise - e.g., substituting OPA333 requires verifying that higher quiescent current (350 µA vs 1.2 mA) meets system power budgets.
TLV2231IDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.6V/µs
- Gain Bandwidth Product:
- 2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 710 µV
- Current - Supply:
- 850µA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TLV2231IDBVT FAQ
1.How can I place an order for TLV2231IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2231IDBVT 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 TLV2231IDBVT reliable?
The price and inventory of TLV2231IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2231IDBVT is usually 5 days.
3.What payment methods are accepted for TLV2231IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2231IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2231IDBVT?
TLV2231IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2231IDBVT 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 TLV2231IDBVT?
For technical support, including TLV2231IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2231IDBVT requirements.
6.How does Aetrix verify that TLV2231IDBVT is sourced from the original manufacturer or authorized distributors?
All TLV2231IDBVT 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 TLV2231IDBVT meets industry standards.
7.What is the process for return or replacement of TLV2231IDBVT?
All TLV2231IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with TLV2231IDBVT, 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 TLV2231IDBVT part is unused and in its original packaging.
Return procedure for TLV2231IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2231IDBVT Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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MCP6006T-E/OT
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MCP6006UT-E/OT
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