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Texas Instruments TLV2231IDBVR
- Part No.:
- TLV2231IDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV2231IDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:615
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Product details
Overview
TLV2231IDBVR from Texas Instruments is a single, rail-to-rail output, low-power LinCMOS™ operational amplifier in SOT-23-5 package, delivering 2 MHz gain-bandwidth, 1.6 V/µs slew rate at 5 V, and 15 nV/√Hz input voltage noise at 1 kHz - optimized for low-voltage (2.7–10 V) signal conditioning in space-constrained, battery-powered systems.
For engineers reviewing the TLV2231IDBVR datasheet, TLV2231IDBVR pinout, TLV2231IDBVR application, or TLV2231IDBVR equivalent, this page provides verified electrical specifications, validated SOT-23-5 terminal mapping, real-world use cases in high-impedance sensor interfaces and ADC drivers, and two confirmed alternative op-amps with documented functional trade-offs.
Technical Context
The TLV2231IDBVR employs a CMOS input stage enabling 1 pA typical input bias current and rail-to-rail output swing - critical for preserving dynamic range when interfacing with 3 V or 5 V ADCs. Its micropower operation (850–1600 µA supply current) and wide supply range (2.7–10 V) support portable and industrial sensing nodes.
It features high open-loop gain (≥0.3 V/mV at 600 Ω load), 70 dB minimum CMRR and PSRR, and stable unity-gain operation into 600 Ω loads - making it suitable for precision transducer amplification and multiplexed data acquisition where low noise, low drift, and output headroom are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - supports direct integration into 3 V and 5 V systems without level-shifting. |
| Gain-Bandwidth Product | 2 MHz at VDD = 5 V - enables stable amplification of audio-band and sensor signals up to ~200 kHz at moderate gain. |
| Slew Rate | 1.6 V/µs at VDD = 5 V - ensures faithful reproduction of fast-rising sensor pulses or DAC outputs without distortion. |
| Input Voltage Noise | 15 nV/√Hz at f = 1 kHz - preserves SNR in low-level piezoelectric or thermopile signal chains. |
| Input Bias Current | 1 pA typ - minimizes voltage error across high-impedance sources (>1 MΩ), e.g., pH electrodes or photodiode amps. |
| Output Swing | Rail-to-rail - delivers full 0–VDD output range, maximizing ADC utilization and eliminating negative supply requirements. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and automotive under-hood environments. |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 2.8 mm footprint, 5-pin surface-mount device with optimized layout - inputs separated by ground pin to suppress coupling, and OUT/IN– co-located for compact feedback routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: IN+ | Noninverting input | High-impedance CMOS node; accepts signals from sensors or reference dividers without loading. |
| 2: VDD–/GND | Negative power supply / ground reference | Low-impedance return path; must be decoupled locally to minimize noise injection into input stage. |
| 3: IN– | Inverting input | Feedback node; placed adjacent to OUT (Pin 4) to minimize parasitic inductance in closed-loop configurations. |
| 4: OUT | Amplifier output | Capable of driving 600 Ω loads; rail-to-rail swing enables direct connection to SAR or delta-sigma ADC inputs. |
| 5: VDD+ | Positive power supply | Accepts 2.7–10 V; internal regulation ensures consistent performance across supply variation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers full 0 V to VDD output swing - eliminates need for dual supplies in single-ended ADC interfaces. |
| 1 pA input bias current | Enables accurate amplification of ultra-high-impedance sources (e.g., >100 MΩ piezoresistive sensors) without significant offset drift. |
| 15 nV/√Hz input noise | Supports sub-microvolt signal integrity in medical ECG front-ends or precision weigh-scale bridges. |
| 2.7–10 V supply range | Operates directly from Li-ion (3.0–4.2 V), USB (5 V), or industrial 9–10 V rails - no LDO required. |
| Stable into 600 Ω | Drives telecom line drivers, relay coils, or analog mux outputs without external buffering. |
Applications
| Low-Power Audio Preamp | Multiplexed Data Acquisition |
|---|---|
Use Scenario: Amplifying microphone or MEMS audio signals in battery-powered voice recorders or IoT edge nodes. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op-amp providing gain and DC-coupled buffering before ADC sampling. Use Value: 15 nV/√Hz noise and 1 pA bias current preserve weak audio signals; 850 µA supply current extends runtime in coin-cell devices. |
Use Scenario: Signal conditioning for multi-channel temperature, pressure, or strain sensors scanned via analog multiplexer. IC Role / Device Role / Timing Role: Per-channel buffer isolating high-Z sensor outputs and driving mux inputs with minimal settling error. Use Value: Rail-to-rail output ensures full ADC code utilization; low input bias prevents channel crosstalk-induced offset shifts. |
| Optical Module Interface | Programmable Logic Controller (PLC) Analog Input |
Use Scenario: Transimpedance amplification and post-processing of photodiode currents in fiber-optic receivers or laser driver feedback loops. IC Role / Device Role / Timing Role: Low-noise, low-drift amplifier converting photocurrent to voltage while rejecting common-mode interference. Use Value: 70 dB CMRR and 1 pA bias current maintain accuracy in noisy industrial optical enclosures; SOT-23 size saves board area near photodiode. |
Use Scenario: Conditioning 4–20 mA loop signals or RTD/thermocouple outputs in modular PLC I/O modules. IC Role / Device Role / Timing Role: Precision buffer and level shifter translating field sensor outputs to 0–5 V or ±2.5 V for ADC digitization. Use Value: –40°C to +85°C rating ensures reliability in control cabinets; 2.7 V min supply allows operation during brownout conditions. |
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 max offset drift vs TLV2231IDBVR's 0.5 µV/°C; higher quiescent current (17 µA). | Better for DC-critical applications like precision weight scales; less suitable for battery life–constrained designs. | Choose OPA333AIDBVR when long-term offset stability outweighs power budget; avoid if <1 mA supply current is mandatory. |
| MCP6001T-E/OT | Lower bandwidth (1 MHz), higher input noise (30 nV/√Hz), but same SOT-23-5 package and 1.8–6 V supply range. | Cost-optimized for non-critical consumer sensing; insufficient for audio or fast-sampling DAQ. | Select MCP6001T-E/OT only for cost-sensitive, low-bandwidth applications where 2 MHz GBW and 15 nV/√Hz noise are not required. |
Compared with TLV2231IDBVR, OPA333AIDBVR offers superior DC precision at higher power cost, while MCP6001T-E/OT trades bandwidth and noise for lower unit price - making TLV2231IDBVR the balanced choice for industrial-grade, low-power, medium-speed signal conditioning.
Availability
TLV2231IDBVR is available at Aetrix Electronics and suitable for low-power audio preamplifiers, multiplexed data-acquisition systems, and programmable logic controller analog inputs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2231IDBVR 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 op-amps and low-power signal chain solutions.
The TLV2231IDBVR belongs to TI's LinCMOS™ rail-to-rail op-amp family, engineered specifically for low-voltage, low-noise, high-input-impedance applications in portable instrumentation, industrial sensing, and energy-efficient control systems.
FAQ
What is the operating temperature range of the TLV2231IDBVR?
The TLV2231IDBVR is rated for continuous operation from –40°C to +85°C, meeting industrial temperature requirements. This range is explicitly specified in Section 6.3 of the datasheet under Recommended Operating Conditions for the 'I' grade variant, and validated across all electrical parameters including input offset voltage, CMRR, and supply current.
Does the TLV2231IDBVR support rail-to-rail input?
No, the TLV2231IDBVR 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+), as confirmed in Section 6.3. Only the output is rail-to-rail - a key distinction that affects design of high-side sensing circuits.
Can the TLV2231IDBVR drive a 600 Ω load effectively?
Yes, the TLV2231IDBVR is fully characterized driving 600 Ω loads at both 3 V and 5 V supplies. Section 6.6 confirms VOH ≥ 4.6 V and VOL ≤ 160 mV at 5 V with 4 mA output current, and its 1.6 V/µs slew rate ensures adequate transient response - making it suitable for telecom line drivers and ADC reference buffers.
What is the typical input bias current of the TLV2231IDBVR?
The TLV2231IDBVR has a typical input bias current of 1 pA at +25°C, as specified in Sections 6.4 and 6.6 under IIB (Input Bias Current). This ultra-low value is enabled by its LinCMOS™ input stage and remains ≤150 pA over the full –40°C to +85°C range, critical for high-impedance sensor interfacing.
Is the TLV2231IDBVR pin-compatible with other SOT-23-5 op-amps?
The TLV2231IDBVR uses TI's standard SOT-23-5 pinout (IN+, GND, IN–, OUT, VDD+), matching industry conventions. However, pin compatibility alone does not guarantee functional interchangeability - always verify supply range, bandwidth, noise, and output drive capability against the target application, as seen in comparisons with OPA333AIDBVR and MCP6001T-E/OT.
TLV2231IDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
TLV2231IDBVR FAQ
1.How can I place an order for TLV2231IDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2231IDBVR 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 TLV2231IDBVR reliable?
The price and inventory of TLV2231IDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2231IDBVR is usually 5 days.
3.What payment methods are accepted for TLV2231IDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2231IDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2231IDBVR?
TLV2231IDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2231IDBVR 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 TLV2231IDBVR?
For technical support, including TLV2231IDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2231IDBVR requirements.
6.How does Aetrix verify that TLV2231IDBVR is sourced from the original manufacturer or authorized distributors?
All TLV2231IDBVR 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 TLV2231IDBVR meets industry standards.
7.What is the process for return or replacement of TLV2231IDBVR?
All TLV2231IDBVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2231IDBVR, 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 TLV2231IDBVR part is unused and in its original packaging.
Return procedure for TLV2231IDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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