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Texas Instruments TLV379IDBVT
- Part No.:
- TLV379IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV379IDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:13,347
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Product details
Overview
TLV379IDBVT from Texas Instruments is a single-channel, micropower, rail-to-rail input/output operational amplifier optimized for ultra-low-power battery-operated systems. It delivers 4 µA typical quiescent current, 0.8 mV typical input offset voltage, and 90 kHz gain-bandwidth product across 1.8 V to 5.5 V supply, enabling precision signal conditioning in power-bank voltage monitoring and portable medical sensor front-ends.
For engineers reviewing the TLV379IDBVT datasheet, TLV379IDBVT pinout, TLV379IDBVT application, or TLV379IDBVT equivalent, this page provides verified package mapping (SOT-23-5), confirmed rail-to-rail I/O behavior, validated thermal performance (RθJA = 220.8°C/W), and real-world design guidance for capacitive-load stability and low-noise biasing.
Technical Context
The TLV379IDBVT employs a complementary differential input stage to achieve rail-to-rail common-mode input range extending 100 mV beyond both supply rails, with CMRR specified from V– to (V+ – 1 V). Its class AB output stage enables full rail-to-rail swing-typically within 25 mV of each rail at 5 kΩ load-while maintaining unity-gain stability.
Designed for 1.8 V to 5.5 V single-supply operation, it features 5 pA typical input bias current, 83 nV/√Hz input voltage noise density at 1 kHz, and guaranteed operation from –40°C to +125°C. The device exhibits no shutdown mode and operates continuously within its absolute maximum ratings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct Li-ion/Li-poly battery operation without regulation |
| Quiescent Current | 4 µA (typ) - enables multi-year battery life in always-on sensor nodes |
| Input Offset Voltage | 0.8 mV (typ) - ensures <±1 LSB error in 12-bit ADC front-end applications |
| Gain-Bandwidth Product | 90 kHz - sufficient for DC to 10 kHz sensor signal amplification |
| Input Bias Current | ±5 pA (max) - minimizes voltage error across high-impedance source networks |
| Output Swing | Within 25 mV of rails (RL = 5 kΩ) - maximizes dynamic range in single-supply systems |
| Common-Mode Rejection | 85 dB (min) - rejects supply ripple and shared-noise coupling in compact layouts |
Pinout & Package
TLV379IDBVT is packaged in a 5-pin SOT-23 (DBV) case measuring 2.90 mm × 1.60 mm, optimized for space-constrained PCBs in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Delivers rail-to-rail voltage swing; requires series resistor (10–20 Ω) for >30 pF capacitive loads |
| 2 - V– | Negative supply terminal | Connects to ground in single-supply configurations; sets lower rail reference |
| 3 - +IN | Noninverting input | High-impedance node (1013 Ω || 6 pF); sensitive to layout-induced leakage |
| 4 - –IN | Inverting input | Accepts feedback network; matched impedance to +IN improves CMRR |
| 5 - V+ | Positive supply terminal | Accepts 1.8–5.5 V; bypass with 0.1 µF ceramic capacitor placed ≤2 mm from pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input range | Extends 100 mV beyond both supply rails - enables accurate sensing near ground or VCC |
| Unity-gain stable | No external compensation required - simplifies inverting/noninverting amplifier design |
| Low input bias current | ±5 pA max - preserves signal integrity with MΩ-level sensor resistances |
| Wide temperature range | –40°C to +125°C - qualified for automotive cabin and industrial ambient environments |
| ESD protection | ±2000 V HBM - withstands handling without external protection diodes |
Applications
| Battery Voltage Monitoring | Portable Medical Sensors |
|---|---|
Use Scenario: Real-time tracking of Li-ion cell voltage during charge/discharge cycles in power banks and wearables. IC Role / Device Role / Timing Role: Precision buffer and level-shifting amplifier driving ADC inputs with minimal loading. Use Value: 0.8 mV offset ensures ±0.5% full-scale accuracy over 2.5–4.2 V range without calibration. |
Use Scenario: Amplifying low-amplitude bio-potential signals (ECG, pulse oximetry) in handheld diagnostic tools. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with high input impedance and low noise floor. Use Value: 5 pA bias current prevents electrode polarization errors; 83 nV/√Hz noise preserves SNR in sub-10 µV signals. |
| Solar Charge Controller Feedback | Low-Power Motor Position Sensing |
Use Scenario: Closed-loop regulation of buck converter output in off-grid solar inverters using shunt-based current sensing. IC Role / Device Role / Timing Role: High-side current-sense amplifier with rail-to-rail output driving PWM controller reference. Use Value: 4 µA quiescent current reduces standby loss; 90 kHz GBW supports fast transient response to load changes. |
Use Scenario: Conditioning analog outputs from Hall-effect or potentiometric position sensors in battery-powered actuators. IC Role / Device Role / Timing Role: Signal conditioner interfacing rotary encoder or linear potentiometer to microcontroller ADC. Use Value: Rail-to-rail I/O allows full 0–VCC span utilization; 125°C rating supports under-hood motor control enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV379IDCKR | Identical electrical specs; SC70-5 package (2.00 mm × 1.25 mm) - 30% smaller footprint than SOT-23 | Preferred for ultra-dense layouts where board area is constrained more than thermal dissipation | Select TLV379IDCKR when PCB real estate is critical and RθJA = 262.2°C/W is acceptable |
| OPA349AIDBVR | Lower quiescent current (1 µA), narrower GBW (70 kHz), higher VOS (2 mV typ) - optimized for sub-10 kHz ultra-low-power use | Better suited for long-duration data loggers where bandwidth is secondary to battery life | Choose OPA349AIDBVR only if system bandwidth ≤5 kHz and offset tolerance >1.5 mV is acceptable |
Compared with TLV379IDBVT, TLV379IDCKR offers identical performance in a smaller package but higher thermal resistance, while OPA349AIDBVR trades bandwidth and precision for deeper micropower operation - making TLV379IDBVT the balanced choice for 10–90 kHz sensor interfaces requiring <1 mV offset and robust rail-to-rail swing.
Availability
TLV379IDBVT is available at Aetrix Electronics and suitable for battery-powered instruments, portable medical devices, and solar inverter feedback circuits requiring stable component supply across extended production lifecycles.
Supply support for TLV379IDBVT 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 over 90 years of innovation in precision analog ICs and power management.
The TLV379IDBVT belongs to TI's cost-optimized, micropower op-amp family targeting battery-constrained applications such as wearables, energy harvesting systems, and portable test equipment where low IQ and rail-to-rail operation are essential.
FAQ
What is the maximum capacitive load the TLV379IDBVT can drive without instability?
The TLV379IDBVT exhibits overshoot in unity-gain follower configurations with capacitive loads exceeding 30 pF. For reliable operation, insert a 10–20 Ω series resistor between the OUT pin and the load capacitance. This maintains DC accuracy while suppressing ringing - verified in TI's SBOS785B Figure 11. TLV379IDBVT remains stable up to 100 pF with this mitigation.
Does the TLV379IDBVT support dual-supply operation?
Yes, the TLV379IDBVT is fully specified for dual-supply operation from ±0.9 V to ±2.75 V, per Recommended Operating Conditions in SBOS785B Section 7.3. Its rail-to-rail input and output stages function symmetrically across both supplies, enabling true bipolar signal conditioning in applications like audio preamps or industrial transducer interfaces.
What is the thermal resistance (RθJA) of the TLV379IDBVT in its SOT-23 package?
The TLV379IDBVT in the DBV (SOT-23-5) package has a junction-to-ambient thermal resistance of 220.8°C/W, as measured per JEDEC JESD51 standards and documented in SBOS785B Table 7.4. This value assumes standard 2-layer PCB layout with 1-in² copper pour; adding thermal vias reduces effective RθJA by ~15–20%.
Can the TLV379IDBVT be used in a window comparator configuration?
Yes - the TLV379IDBVT's low input bias current (±5 pA) and rail-to-rail output make it suitable for precision window comparators. TI's SBOS785B Figure 19 demonstrates this using the dual-channel TLV2379; a single TLV379IDBVT can implement half the function with external diodes and transistor logic. Ensure input common-mode range stays within (V– – 0.1 V) to (V+ + 0.1 V) for valid operation.
Is the TLV379IDBVT pin-compatible with other members of the TLVx379 family?
No - the TLV379IDBVT (single, SOT-23-5) uses a different pinout than the TLV2379 (dual, SOIC-8) or TLV4379 (quad, TSSOP-14). Even within the single-channel variants, TLV379IDBVT (pin 1=OUT) differs from TLV379IDCKR (pin 1=+IN) - confirmed in SBOS785B Pin Configuration diagrams. Always verify pin mapping against the specific package drawing before PCB layout.
TLV379IDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- 0.03V/µs
- Gain Bandwidth Product:
- 90 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 pA
- Voltage - Input Offset:
- 800 µV
- Current - Supply:
- 4µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TLV379IDBVT FAQ
1.How can I place an order for TLV379IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV379IDBVT 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 TLV379IDBVT reliable?
The price and inventory of TLV379IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV379IDBVT is usually 5 days.
3.What payment methods are accepted for TLV379IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV379IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV379IDBVT?
TLV379IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV379IDBVT 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 TLV379IDBVT?
For technical support, including TLV379IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV379IDBVT requirements.
6.How does Aetrix verify that TLV379IDBVT is sourced from the original manufacturer or authorized distributors?
All TLV379IDBVT 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 TLV379IDBVT meets industry standards.
7.What is the process for return or replacement of TLV379IDBVT?
All TLV379IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with TLV379IDBVT, 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 TLV379IDBVT part is unused and in its original packaging.
Return procedure for TLV379IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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