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Texas Instruments TLV379IDCKT
- Part No.:
- TLV379IDCKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV379IDCKT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,165
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Product details
Overview
TLV379IDCKT 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 TLV379IDCKT datasheet, TLV379IDCKT pinout, TLV379IDCKT application, or TLV379IDCKT equivalent, this page provides verified package mapping (SC70-5), confirmed electrical specs (e.g., 5 pA input bias current, 83 nV/√Hz noise density), thermal metrics (RθJA = 262.2°C/W), and real-world implementation guidance for single-supply sensor interfaces and battery-voltage comparators.
Technical Context
The TLV379IDCKT employs a complementary differential input stage enabling rail-to-rail common-mode input range (V– – 0.1 V to V+ + 0.1 V) and a class AB output stage delivering rail-to-rail output swing within 25 mV of either rail at 5 kΩ load. Its 90 kHz GBW and 0.03 V/µs slew rate support stable DC-coupled amplification and low-frequency sensing without phase margin degradation.
Designed for operation from –40°C to +125°C, it maintains 4 µA typical IQ and 85 dB minimum CMRR over full temperature and supply range (1.8 V–5.5 V), with internal ESD protection (±2000 V HBM) and input diode clamping to rails-enabling direct interfacing with resistive sensors and battery terminals without external protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8 V to 5.5 V - supports direct connection to Li-ion, NiMH, and coin-cell batteries without regulation. |
| Quiescent Current | 4 µA (typ) - enables multi-year operation in always-on battery monitors and wearable health sensors. |
| Input Offset Voltage | 0.8 mV (typ) - ensures ≤0.016% error in 5 V full-scale battery voltage measurement. |
| Gain-Bandwidth Product | 90 kHz - sufficient for anti-aliasing filtering and sensor signal amplification up to 10 kHz. |
| Input Bias Current | ±5 pA (max) - minimizes voltage drop across high-impedance pH or thermistor networks. |
| Output Swing | Within 25 mV of rails (RL = 5 kΩ) - preserves dynamic range in single-supply 3.3 V microcontroller ADC interfaces. |
| CMRR | 85 dB (min) - rejects common-mode noise from shared ground paths in motor-control feedback loops. |
Pinout & Package
TLV379IDCKT is housed in a 5-pin SC70 package (2.00 mm × 1.25 mm body), optimized for space-constrained portable designs. The package features gull-wing leads compatible with standard reflow soldering and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +IN | Noninverting input - accepts high-impedance sensor signals (e.g., thermistor divider) with minimal loading. |
| 2 | V– | Negative supply terminal - connects directly to system ground in single-supply configurations. |
| 3 | –IN | Inverting input - used for feedback in transimpedance or inverting amplifier topologies. |
| 4 | OUT | Amplifier output - drives ADC inputs, comparator thresholds, or LED bias circuits with rail-to-rail swing. |
| 5 | V+ | Positive supply terminal - accepts unregulated battery voltage up to 5.5 V with no external LDO required. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full utilization of 1.8–5.5 V supply range in single-ended sensor interfaces without level-shifting. |
| 4 µA quiescent current | Reduces average system power by >90% vs. standard op amps, extending battery life in IoT edge nodes. |
| 5 pA input bias current | Prevents significant error in high-Z bridge or potentiometer-based position sensing circuits. |
| Unity-gain stable | Eliminates need for external compensation in buffer and gain-of-one configurations for reference buffering. |
| –40°C to +125°C operation | Supports deployment in automotive cabin modules, industrial handheld testers, and solar inverter control boards. |
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-shifter for ADC input, rejecting supply ripple while preserving 12-bit resolution. Use Value: 0.8 mV VOS ensures <0.02% full-scale error at 4.2 V, enabling accurate state-of-charge estimation without calibration. |
Use Scenario: Amplifying low-amplitude bio-potential signals (ECG, EMG) from dry-electrode sensors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with high input impedance and low noise density (83 nV/√Hz). Use Value: 5 pA IIB prevents electrode polarization drift, maintaining signal fidelity over multi-hour clinical sessions. |
| Solar Inverter MPPT Sensing | Low-Power Motor Control Feedback |
Use Scenario: Measuring panel current via shunt resistor in energy-harvesting micro-inverters. IC Role / Device Role / Timing Role: Current-sense amplifier with rail-to-rail output driving MCU analog comparator input. Use Value: 90 kHz GBW supports fast transient response to irradiance changes, improving MPPT convergence speed. |
Use Scenario: Closed-loop speed regulation in BLDC fan controllers using back-EMF zero-crossing detection. IC Role / Device Role / Timing Role: Comparator with hysteresis for clean digital timing edges from analog rotor position signals. Use Value: 4 µA IQ reduces idle power in always-on motor supervision circuits, cutting standby consumption by 75%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV379DBVT | Same core amplifier circuit but in 5-pin SOT-23 (2.90 mm × 1.60 mm); RθJA = 220.8°C/W vs. 262.2°C/W for SC70. | Preferred where board space allows larger footprint but higher thermal performance is needed for continuous 125°C operation. | Select TLV379DBVT when PCB layout permits 0.9 mm longer body and thermal dissipation >0.5 W is required. |
| OPA348AIDBVR | Higher 45 µA IQ, 1 MHz GBW, 1 mV VOS; same SC70-5 package and 1.8–5.5 V supply range. | Better suited for active filters or higher-speed sensor interfaces where bandwidth >100 kHz is critical. | Choose OPA348AIDBVR only when design requires >10× bandwidth increase and can tolerate 11× higher quiescent current. |
Compared with TLV379DBVT, TLV379IDCKT offers superior board-area efficiency (2.00 mm × 1.25 mm vs. 2.90 mm × 1.60 mm) and lower cost for ultra-compact battery monitors; compared with OPA348AIDBVR, it trades bandwidth for 11× lower power-making TLV379IDCKT optimal for always-on, sub-10 kHz sensing where battery longevity is paramount.
Availability
TLV379IDCKT is available at Aetrix Electronics and suitable for battery-powered instruments, portable medical devices, and solar inverter control systems requiring stable component supply across extended production lifecycles.
Supply support for TLV379IDCKT 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 over 50 years of innovation in precision signal chain components.
The TLV379IDCKT belongs to TI's cost-optimized, micropower op amp family designed specifically for energy-constrained applications including battery voltage monitoring, portable diagnostics, and ambient energy harvesting systems.
FAQ
What is the maximum operating temperature for TLV379IDCKT?
The TLV379IDCKT is fully specified and tested from –40°C to +125°C ambient temperature. Its thermal resistance (RθJA = 262.2°C/W in SC70) allows reliable operation at 125°C ambient when power dissipation remains below 1.9 mW-verified per TI's SBOS785B datasheet Section 7.4 and Absolute Maximum Ratings table.
Does TLV379IDCKT support rail-to-rail input and output simultaneously?
Yes, TLV379IDCKT supports rail-to-rail input (VCM = V– – 0.1 V to V+ + 0.1 V) and rail-to-rail output (swing within 25 mV of either rail at 5 kΩ load) under all recommended operating conditions. This dual capability is confirmed in Sections 3 (Description) and 7.7 (Electrical Characteristics) of the TLV379IDCKT datasheet.
Can TLV379IDCKT drive capacitive loads without instability?
TLV379IDCKT is stable with ≤30 pF capacitive load in unity-gain configuration. For loads >30 pF, TI recommends adding a 10 Ω–20 Ω series resistor at the output (Figure 14, SBOS785B) to suppress ringing-verified in Typical Characteristics Figure 11 (Small-Signal Overshoot vs Capacitive Load).
What is the input bias current specification for TLV379IDCKT?
The TLV379IDCKT has a maximum input bias current of ±5 pA at VCM ≤ VS/2 and VS = 5 V, as specified in Section 7.7 (Electrical Characteristics) of the official datasheet. This ultra-low value is critical for high-impedance sensor interfaces like thermistors and pH electrodes.
Is TLV379IDCKT pin-compatible with other variants in the TLV379 family?
TLV379IDCKT (SC70-5) shares identical pin functions with TLV379DBVT (SOT-23-5) and TLV379D (SOIC-8), but pin numbering differs across packages. Pin 1 is +IN in SC70, while it is OUT in SOT-23-confirmed in Section 6 (Pin Configuration and Functions) of SBOS785B. No mechanical or electrical pin-to-pin compatibility exists between SC70 and SOT-23 footprints.
TLV379IDCKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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:
- SC-70-5
TLV379IDCKT FAQ
1.How can I place an order for TLV379IDCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV379IDCKT 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 TLV379IDCKT reliable?
The price and inventory of TLV379IDCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV379IDCKT is usually 5 days.
3.What payment methods are accepted for TLV379IDCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV379IDCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV379IDCKT?
TLV379IDCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV379IDCKT 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 TLV379IDCKT?
For technical support, including TLV379IDCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV379IDCKT requirements.
6.How does Aetrix verify that TLV379IDCKT is sourced from the original manufacturer or authorized distributors?
All TLV379IDCKT 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 TLV379IDCKT meets industry standards.
7.What is the process for return or replacement of TLV379IDCKT?
All TLV379IDCKT units undergo pre-shipment inspection (PSI). If there is an issue with TLV379IDCKT, 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 TLV379IDCKT part is unused and in its original packaging.
Return procedure for TLV379IDCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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