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Texas Instruments TLV314QDBVTQ1
- Part No.:
- TLV314QDBVTQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV314QDBVTQ1.pdf
- Description:
- IC CMOS 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,522
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Product details
Overview
TLV314QDBVTQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified single-channel rail-to-rail input/output operational amplifier for automotive signal conditioning. It delivers 3 MHz gain bandwidth, 1.5 V/µs slew rate, 0.75 mV typical offset voltage, 1 pA typical input bias current, and 250 µA maximum quiescent current per channel - enabling precision low-side sensing in battery management systems operating from 1.8 V to 5.5 V.
For engineers reviewing the TLV314QDBVTQ1 datasheet, TLV314QDBVTQ1 pinout, TLV314QDBVTQ1 application, or TLV314QDBVTQ1 equivalent, this page provides verified package mapping (SOT-23-5), confirmed EMI rejection performance (EMIRR >60 dB up to 1 GHz), validated rail-to-rail operation at 1.8 V supply, and two documented automotive-grade alternatives with explicit functional and thermal differences.
Technical Context
The TLV314QDBVTQ1 uses a complementary differential input stage enabling rail-to-rail common-mode input range extending 200 mV beyond both supply rails, with a defined transition region between (V+) – 1.7 V and (V+) – 0.9 V where PSRR and CMRR degrade. Its class AB output stage achieves 5 mV rail-to-rail swing into 10 kΩ at 1.8 V–5.5 V supply.
It integrates an internal 80 MHz (–3 dB) low-pass EMI filter on both inputs, delivering measured EMIRR IN+ >60 dB from 10 MHz to 1 GHz. The device is unity-gain stable and supports capacitive loads up to 1 nF without external compensation, with no phase reversal under overdrive conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 3 MHz - enables accurate amplification of signals up to ~300 kHz at unity gain in automotive sensor interfaces |
| Input Offset Voltage | ±0.75 mV (typ) - ensures ≤0.015% error in 5 V full-scale current-sense applications |
| Quiescent Current | 250 µA/ch (max) - supports always-on monitoring in 12 V automotive systems with <3 mW total dissipation at 5 V |
| Input Bias Current | 1 pA (typ) - preserves signal integrity in high-impedance capacitive sensing and piezoelectric transducer circuits |
| EMI Rejection Ratio | >60 dB from 10 MHz–1 GHz - mitigates RF-induced offset shifts in infotainment-adjacent ECUs without external filtering |
| Rail-to-Rail I/O | VCM = (V−) − 0.2 V to (V+) + 0.2 V; VOUT swings to within 5 mV of rails - maximizes dynamic range for 12-bit ADC drivers at 1.8 V supply |
| Supply Range | 1.8 V to 5.5 V - operates across cold-crank (1.8 V) and double-battery (5.5 V) automotive transients without brownout |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm height, gull-wing leads, JEDEC MO-178AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Class AB stage drives ≥10 kΩ resistive or ≤1 nF capacitive loads; no phase reversal on overdrive |
| 2 - V− | Negative supply | Reference node for single-supply (ground) or dual-supply (−0.9 V) operation; ties to system GND in automotive BMS |
| 3 - +IN | Noninverting input | High-impedance node (1 pA bias); accepts signals from 0.2 V below V− to 0.2 V above V+; filtered for EMI immunity |
| 4 - −IN | Inverting input | Matches +IN in impedance and EMI filtering; used in precision inverting configurations with matched feedback networks |
| 5 - V+ | Positive supply | Accepts 1.8–5.5 V; requires 0.01 µF ceramic bypass to V−; supports operation during cold-crank (1.8 V) and load-dump (5.5 V) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation with HBM ±4 kV / CDM ±1 kV ESD robustness in automotive ECUs |
| Internal EMI filter | Integrated 80 MHz low-pass filter on both inputs reduces RF rectification-induced offset drift without external components |
| Rail-to-rail input range | Extends 200 mV beyond supply rails - enables direct interfacing to sensors referenced to V+ or GND in single-supply systems |
| Unity-gain stability | Stable with 0–1 nF capacitive loads at G = 1 - eliminates need for isolation resistors in ADC buffer or filter driver stages |
| No phase reversal | Output remains monotonic during input overdrive - prevents latch-up or false triggering in safety-critical comparator-like usage |
Applications
| Low-Side Current Sensing | Battery Management Systems |
|---|---|
Use Scenario: Monitoring discharge current in 12 V lead-acid or 48 V Li-ion automotive battery packs using shunt resistor below load. IC Role / Device Role / Timing Role: Precision differential amplifier with rail-to-rail input capturing µV-level shunt voltage at near-ground common-mode. Use Value: 1 pA input bias avoids shunt measurement error; 0.75 mV offset enables ≤1% full-scale error on 50 mV shunt; 250 µA IQ extends sleep-mode runtime. |
Use Scenario: Cell voltage monitoring and charge/discharge control in EV traction battery modules with isolated CAN communication. IC Role / Device Role / Timing Role: Signal conditioner for analog front-end ADC inputs, rejecting switching noise from DC-DC converters. Use Value: >60 dB EMIRR suppresses 2.4 GHz Wi-Fi and 5 GHz radar interference; 3 MHz GBW supports fast transient detection during fault events. |
| Passive Safety Systems | Capacitive Sensing Interfaces |
Use Scenario: Occupant detection via seat pad capacitance measurement in airbag control units. IC Role / Device Role / Timing Role: High-Z buffer and integrator for relaxation oscillator-based capacitance-to-voltage conversion. Use Value: 1 pA input bias enables stable integration over ms timescales; rail-to-rail output drives SAR ADC reference range fully. |
Use Scenario: Touch-sensitive controls in center console and door panels exposed to RF-rich cabin environments. IC Role / Device Role / Timing Role: Front-end amplifier for sigma-delta capacitance measurement ICs, rejecting AM/FM and cellular band noise. Use Value: Internal EMI filter eliminates need for external ferrite beads; −40°C to +125°C operation ensures reliability in sun-loaded interiors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV314QDBVRQ1 | Higher 350 µA max IQ; same 3 MHz GBW, but 1.2 mV max offset and no integrated EMI filter | Lacks EMI rejection for RF-noisy domains; suitable only where layout shielding is feasible | Choose when cost sensitivity outweighs EMI immunity requirements in shielded modules |
| TSV911ILT | Industrial grade (−40°C to +125°C), 1.1 MHz GBW, 160 µA IQ, no AEC-Q100 qualification | Not qualified for automotive use; lower bandwidth limits response in fast BMS fault detection | Acceptable for non-safety-critical aftermarket accessories with verified thermal derating |
Compared with LMV314QDBVRQ1 and TSV911ILT, TLV314QDBVTQ1 uniquely combines AEC-Q100 Grade 1 qualification, integrated EMI filtering, and sub-1 mV offset in a 250 µA package - making it the only option qualified for unshielded placement near infotainment antennas or motor drivers in ASIL-B systems.
Availability
TLV314QDBVTQ1 is available at Aetrix Electronics and suitable for battery management systems, passive safety controllers, and capacitive touch interfaces requiring stable component supply across automotive production lifecycles.
Supply support for TLV314QDBVTQ1 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 company designing analog ICs, embedded processors, and connectivity solutions for automotive, industrial, and consumer markets.
TLV314QDBVTQ1 belongs to TI's automotive-qualified precision op-amp portfolio, engineered specifically for low-power, EMI-hardened signal conditioning in safety-critical vehicle subsystems.
FAQ
What is the operating temperature range for TLV314QDBVTQ1?
The TLV314QDBVTQ1 is qualified per AEC-Q100 Grade 1, supporting continuous operation from −40°C to +125°C ambient temperature. This range is validated across all electrical parameters in the datasheet, including offset voltage drift (2 µV/°C), quiescent current (150–250 µA), and open-loop gain (85–115 dB), making TLV314QDBVTQ1 suitable for engine bay and powertrain control unit deployments.
Does TLV314QDBVTQ1 support single-supply operation at 1.8 V?
Yes, TLV314QDBVTQ1 is fully specified and production-tested for 1.8 V single-supply operation. At 1.8 V, it maintains 2.7 MHz gain bandwidth, 1.5 V/µs slew rate, rail-to-rail input (−0.2 V to +2.0 V), and rail-to-rail output (within 25 mV of rails into 10 kΩ). This enables TLV314QDBVTQ1 to function during automotive cold-crank conditions without reset or performance loss.
What is the maximum capacitive load TLV314QDBVTQ1 can drive stably?
TLV314QDBVTQ1 remains unity-gain stable with up to 1 nF pure capacitive load, as confirmed by overshoot testing in Figure 8 of SBOS837A. For loads >1 nF, stability is maintained by adding a 10–20 Ω series resistor between amplifier output and capacitor, though this introduces gain error. TLV314QDBVTQ1 does not require external compensation in standard buffer or filter configurations.
How does the internal EMI filter in TLV314QDBVTQ1 improve system robustness?
The internal EMI filter in TLV314QDBVTQ1 is a 80 MHz (−3 dB) low-pass network on both inputs that attenuates RF energy before rectification occurs in input-stage junctions. Measured EMIRR IN+ exceeds 60 dB from 10 MHz to 1 GHz, preventing offset shifts caused by GSM, Wi-Fi, or radar emissions - eliminating need for external LC filters in TLV314QDBVTQ1-based designs for ADAS or infotainment proximity sensors.
Is TLV314QDBVTQ1 pin-compatible with other devices in the TLVx314-Q1 family?
No - TLV314QDBVTQ1 (single-channel, SOT-23-5) is not pin-compatible with TLV2314-Q1 (dual, SOIC-8/VSSOP-8) or TLV4314-Q1 (quad, TSSOP-14). Pin functions differ across channel count and package variants; for example, TLV314QDBVTQ1 pin 3 is +IN, while TLV2314-Q1 pin 3 is +IN A and pin 5 is +IN B. Migration requires PCB redesign and layout validation.
TLV314QDBVTQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 2.7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 750 µV
- Current - Supply:
- 150µA
- Current - Output / Channel:
- 20 mA
- 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:
- SOT-23-5
TLV314QDBVTQ1 FAQ
1.How can I place an order for TLV314QDBVTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV314QDBVTQ1 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 TLV314QDBVTQ1 reliable?
The price and inventory of TLV314QDBVTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV314QDBVTQ1 is usually 5 days.
3.What payment methods are accepted for TLV314QDBVTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV314QDBVTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV314QDBVTQ1?
TLV314QDBVTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV314QDBVTQ1 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 TLV314QDBVTQ1?
For technical support, including TLV314QDBVTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV314QDBVTQ1 requirements.
6.How does Aetrix verify that TLV314QDBVTQ1 is sourced from the original manufacturer or authorized distributors?
All TLV314QDBVTQ1 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 TLV314QDBVTQ1 meets industry standards.
7.What is the process for return or replacement of TLV314QDBVTQ1?
All TLV314QDBVTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV314QDBVTQ1, 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 TLV314QDBVTQ1 part is unused and in its original packaging.
Return procedure for TLV314QDBVTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV314QDBVTQ1 Tags
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