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Texas Instruments TLV313QDCKTQ1
- Part No.:
- TLV313QDCKTQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV313QDCKTQ1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,284
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Product details
Overview
TLV313QDCKTQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified single-channel rail-to-rail input/output operational amplifier designed for automotive signal conditioning. It delivers 1 MHz gain-bandwidth, 65 µA typical quiescent current per channel, 750 µV typical input offset voltage, and operates from 1.8 V to 5.5 V supply-enabling precision sensing in engine control units and battery management systems.
For engineers reviewing the TLV313QDCKTQ1 datasheet, TLV313QDCKTQ1 pinout, TLV313QDCKTQ1 application, or TLV313QDCKTQ1 equivalent, key selection criteria include its automotive-grade ESD robustness (4-kV HBM), low-noise performance (26 nV/√Hz at 1 kHz), RFI/EMI filtering, and SC70-5 package suitability for space-constrained PCB layouts in infotainment and passive safety modules.
Technical Context
The TLV313QDCKTQ1 employs a complementary differential input stage enabling true rail-to-rail input operation with ±200 mV beyond supply rails, and a class AB output stage delivering rail-to-rail output swing within 5 mV of either rail under 100 kΩ load. Its internal RFI/EMI filter provides –3 dB common-mode cutoff near 35 MHz and measured EMIRR >100 dB at 100 MHz.
It achieves unity-gain stability with capacitive loads up to 100 pF and remains stable with pure capacitance ≤1 nF; no phase reversal occurs during overdrive. Input bias current is 1 pA typical, supporting high-impedance sensor interfaces such as capacitive sensing and fuel pump current monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct connection to automotive 3.3 V and 5 V rails without LDOs |
| Gain-Bandwidth Product | 1 MHz - enables stable closed-loop operation up to ~100 kHz with G = 10, suitable for ADC driver and sensor signal conditioning |
| Input Offset Voltage | 0.75 mV typical - ensures <±1 LSB error when driving 12-bit SAR ADCs with ±2.5 V full-scale range |
| Quiescent Current | 65 µA/ch - allows continuous operation in always-on vehicle subsystems with minimal battery drain |
| Input Voltage Noise | 26 nV/√Hz at 1 kHz - preserves SNR in low-level analog front-ends like thermistor or strain gauge amplification |
| CMRR / PSRR | 85 dB / 90 dB - rejects common-mode transients and supply ripple in noisy automotive environments |
| EMI Rejection Ratio | >100 dB at 100 MHz - mitigates RF-induced DC offset shifts in infotainment and radar proximity circuits |
Pinout & Package
TLV313QDCKTQ1 is housed in a 5-pin SC70 (DCK) package measuring 2.00 mm × 1.25 mm, optimized for high-density automotive PCBs with thermal resistance RθJA = 281.4°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: +IN | Noninverting input | Accepts signals from 200 mV below V– to 200 mV above V+; compatible with single-supply sensor bridges |
| 2: V– | Negative power supply | Typically ground in single-supply systems; supports operation down to 1.8 V total supply |
| 3: –IN | Inverting input | Enables precision inverting configurations with matched feedback networks for current sensing |
| 4: OUT | Amplifier output | Drives loads to within 5 mV of rails at 100 kΩ; sustains ±15 mA short-circuit current |
| 5: V+ | Positive power supply | Accepts up to 5.5 V; integrated ESD diodes clamp inputs to V+ and V– rails |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation in engine bay and cabin electronics |
| Rail-to-rail input/output | Full dynamic range utilization across 1.8–5.5 V supplies; eliminates level-shifting circuitry |
| Integrated RFI/EMI filter | Reduces rectified offset drift from AM/FM/Cellular band interference in vehicle RF environments |
| No phase reversal on overdrive | Prevents latch-up or erroneous control signals during transient input excursions beyond rails |
| Low input bias current (1 pA) | Enables use with >10 MΩ source impedances-critical for capacitive touch and high-Z sensor nodes |
Applications
| Engine Control Unit (ECU) | Automotive Lighting Control |
|---|---|
Use Scenario: Amplifying low-voltage signals from oxygen sensors and knock sensors in harsh under-hood environments. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner interfacing with 12-bit microcontroller ADCs. Use Value: 0.75 mV offset and 85 dB CMRR maintain measurement accuracy despite thermal gradients and ignition noise. |
Use Scenario: Closed-loop current regulation for LED headlamp drivers with PWM dimming. IC Role / Device Role / Timing Role: High-side or low-side current sense amplifier feeding feedback to LED controller. Use Value: Rail-to-rail I/O and 1 pA input bias enable accurate sensing across full 0–5 V PWM duty cycle range. |
| Battery Management System (BMS) | Passive Safety Occupancy Detection |
Use Scenario: Cell voltage monitoring and temperature compensation in 12 V starter battery and 48 V mild-hybrid packs. IC Role / Device Role / Timing Role: Low-power buffer and level shifter between battery cell taps and isolated ADC inputs. Use Value: 65 µA quiescent current extends sleep-mode battery life; 1 MHz GBW supports fast fault detection sampling. |
Use Scenario: Signal conditioning for capacitive seat occupancy sensors detecting passenger presence. IC Role / Device Role / Timing Role: Transimpedance amplifier converting femtoamp-level capacitance change into measurable voltage. Use Value: 1 pA input bias minimizes leakage error; internal EMI filter suppresses RF interference from nearby telematics modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV313QDBVRQ1 | Higher 100 µA IQ, 1.2 MHz GBW, SO-8 package (3.0 × 3.0 mm) | Better bandwidth for faster control loops; larger footprint limits ultra-compact designs | Choose when higher speed outweighs size and power constraints |
| TSV911IQ2T | Lower 40 µA IQ, 8 MHz GBW, but only qualified to AEC-Q100 Grade 2 (–40°C to +105°C) | Not rated for under-hood ambient temperatures above 105°C | Acceptable for cabin-only applications where extended temperature range is not required |
Compared with LMV313QDBVRQ1 and TSV911IQ2T, TLV313QDCKTQ1 uniquely balances ultra-low power (65 µA), AEC-Q100 Grade 1 qualification, and SC70-5 footprint-making it optimal for space- and energy-constrained automotive sensing nodes where full 125°C operation is mandatory.
Availability
TLV313QDCKTQ1 is available at Aetrix Electronics and suitable for engine control units, battery management systems, and automotive lighting requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for TLV313QDCKTQ1 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 automotive-grade product development and manufacturing expertise.
TLV313QDCKTQ1 belongs to TI's TLVx313-Q1 family of precision, low-power op amps engineered specifically for cost-sensitive automotive signal chains-including infotainment, body electronics, and powertrain subsystems-where reliability, EMI immunity, and small form factor are critical.
FAQ
What automotive qualification level does TLV313QDCKTQ1 meet?
TLV313QDCKTQ1 is AEC-Q100 qualified to Grade 1, meaning it is specified and tested for ambient operating temperatures from –40°C to +125°C and meets stringent reliability and ESD requirements including 4-kV HBM and 1-kV CDM. This makes TLV313QDCKTQ1 suitable for under-hood and safety-critical applications where thermal robustness is mandatory.
Can TLV313QDCKTQ1 drive capacitive loads without oscillation?
Yes-TLV313QDCKTQ1 is unity-gain stable and remains stable with pure capacitive loads up to 100 pF. With careful layout and series output resistance (10–20 Ω), it can reliably drive loads up to 1 nF. Its phase margin exceeds 65° at 5 V supply, and no phase reversal occurs during input overdrive-key for automotive transients.
What is the maximum input common-mode voltage range for TLV313QDCKTQ1?
The TLV313QDCKTQ1 supports rail-to-rail input with a common-mode range extending 200 mV beyond both supply rails: from (V–) – 0.2 V to (V+) + 0.2 V. At 5.5 V supply, this covers –0.2 V to +5.7 V. Within the transition region near V+ – 1.3 V, CMRR and PSRR degrade slightly-but full specification applies across the majority of the range.
How does the internal EMI filter in TLV313QDCKTQ1 improve system reliability?
The integrated RFI/EMI filter in TLV313QDCKTQ1 provides common-mode rejection with –3 dB cutoff near 35 MHz and >100 dB EMIRR at 100 MHz. This prevents RF rectification-induced DC offset shifts-critical in automotive environments exposed to AM/FM broadcast, cellular, and Bluetooth interference-ensuring stable sensor readings without external filtering components.
Is TLV313QDCKTQ1 pin-compatible with other members of the TLVx313-Q1 family?
No-TLV313QDCKTQ1 is a single-channel device in SC70-5 (DCK) package, while TLV2313-Q1 is dual-channel in SOIC-8 or VSSOP-8. Pin count, pinout, and package dimensions differ fundamentally. Interchange requires PCB redesign; however, electrical specs and functional behavior are closely aligned across the family for design reuse at the schematic level.
TLV313QDCKTQ1 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:
- 0.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 750 µV
- Current - Supply:
- 65µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
TLV313QDCKTQ1 FAQ
1.How can I place an order for TLV313QDCKTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV313QDCKTQ1 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 TLV313QDCKTQ1 reliable?
The price and inventory of TLV313QDCKTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV313QDCKTQ1 is usually 5 days.
3.What payment methods are accepted for TLV313QDCKTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV313QDCKTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV313QDCKTQ1?
TLV313QDCKTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV313QDCKTQ1 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 TLV313QDCKTQ1?
For technical support, including TLV313QDCKTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV313QDCKTQ1 requirements.
6.How does Aetrix verify that TLV313QDCKTQ1 is sourced from the original manufacturer or authorized distributors?
All TLV313QDCKTQ1 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 TLV313QDCKTQ1 meets industry standards.
7.What is the process for return or replacement of TLV313QDCKTQ1?
All TLV313QDCKTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV313QDCKTQ1, 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 TLV313QDCKTQ1 part is unused and in its original packaging.
Return procedure for TLV313QDCKTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV313QDCKTQ1 Tags
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