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Texas Instruments TLV9151QDCKRQ1
- Part No.:
- TLV9151QDCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV9151QDCKRQ1.pdf
- Description:
- Automotive, single-channel, 16V
- Quantity:
- Payment:
- Shipping:
Inventory:2,475
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Product details
Overview
TLV9151QDCKRQ1 from Texas Instruments is a single-channel, AEC-Q100 Grade 1 automotive operational amplifier in SC70-5 package, delivering 4.5MHz gain-bandwidth, ±125µV offset voltage, 10.8nV/√Hz input voltage noise at 1kHz, rail-to-rail input/output swing, and 21V/µs slew rate. It serves precision signal conditioning in high-side current sensing and ADAS sensor front-ends.
For engineers reviewing the TLV9151QDCKRQ1 datasheet, TLV9151QDCKRQ1 pinout, TLV9151QDCKRQ1 application, or TLV9151QDCKRQ1 equivalent, key selection criteria include its ±0.3µV/°C offset drift, 120dB CMRR, 560µA quiescent current, robust EMIRR performance up to 1GHz, and operation across –40°C to +125°C ambient.
Technical Context
The TLV9151QDCKRQ1 implements a precision bipolar-input op amp architecture with integrated EMI/RFI filters on both input pins, enabling stable operation in noisy automotive environments. Its rail-to-rail input stage supports common-mode voltages from (V–) – 0.1V to (V+) + 0.1V, while the output delivers ±75mA drive capability and 5mV rail-to-rail swing at no load under 16V supply.
It features a shutdown pin (SHDN) with logic thresholds of (V–) + 0.2V (low) and (V–) + 1.1V (high), enabling fast enable/disable times of 3µs (partial) and 8µs (full), and reduces quiescent current to 30–45µA when disabled. The device maintains 60° phase margin with 20pF capacitive load and exhibits no phase reversal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5MHz - enables stable unity-gain operation up to ~4.5MHz or closed-loop gains of 10 at ~450kHz for sensor signal amplification. |
| Input offset voltage | ±125µV (typ) - ensures ≤0.125mV DC error in 10V full-scale current-sense applications, critical for accurate battery monitoring. |
| Slew rate | 21V/µs - supports clean 10V step response in ≤0.5µs, suitable for fast transient detection in motor control feedback loops. |
| Input voltage noise density | 10.8nV/√Hz at 1kHz - minimizes added noise in low-level analog front-ends such as thermistor or strain gauge interfaces. |
| Common-mode rejection ratio | 120dB - rejects >10⁶× common-mode interference from shared power rails in infotainment head units. |
| Quiescent current | 560µA per amplifier - allows continuous operation in always-on ADAS modules without excessive battery drain. |
| Supply voltage range | 2.7V to 16V - accommodates 12V automotive systems including cold-crank (down to ~6V) and load-dump transients (up to 16V). |
Pinout & Package
TLV9151QDCKRQ1 uses the DCK (SC70-5) package: 2.0mm × 2.1mm, 5-pin surface-mount, moisture sensitivity level 1 (MSL1), rated for –40°C to +125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Noninverting input | Accepts differential input signals up to (V–) – 0.1V to (V+) + 0.1V; internally filtered for EMI immunity. |
| 2 (V–) | Negative supply | Reference for dual-supply operation (±1.35V to ±8V) or ground in single-supply (2.7V–16V) configurations. |
| 3 (IN–) | Inverting input | High-impedance node (6TΩ || 1pF) with matched bias current (±10pA) for precision differential gain stages. |
| 4 (OUT) | Amplifier output | Delivers rail-to-rail swing (≤10mV from rails at no load) and ±75mA short-circuit current for driving ADC inputs or active filters. |
| 5 (V+) | Positive supply | Supports wide supply range; internal regulation ensures stable biasing across temperature and voltage variation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with HBM ESD level 3A (±2kV) and CDM level C6 (±1kV), meeting automotive reliability requirements. |
| Rail-to-rail input and output | Enables full utilization of supply rails in single-supply systems (e.g., 3.3V microcontroller ADC reference), maximizing dynamic range without level-shifting circuitry. |
| EMI/RFI input filtering | Integrated filters provide ≥60dB EMIRR at 400MHz and ≥40dB up to 1GHz, reducing susceptibility to cellular, Bluetooth, and radar interference in vehicle cabins. |
| Low offset voltage drift | ±0.3µV/°C typical drift ensures <1.5µV total offset shift over full temperature range, eliminating need for system-level calibration in body control modules. |
| Shutdown mode | Reduces IQ to 30–45µA and places output in high-impedance state, enabling power-gating in multi-amplifier sensor hubs without signal contention. |
Applications
| High-Side Current Sensing | ADAS Radar Signal Conditioning |
|---|---|
Use Scenario: Monitoring battery pack current in EV powertrain inverters using a shunt resistor placed between battery positive and load. IC Role / Device Role / Timing Role: Precision difference amplifier with gain of 50–100, rejecting common-mode voltage up to 400V while resolving µV-level shunt drops. Use Value: ±125µV offset and 120dB CMRR ensure <0.5% full-scale error at 100A measurement, supporting ISO 26262 ASIL-B functional safety compliance. | Use Scenario: Amplifying weak IF signals (10–100mVpp) from 77GHz radar receiver chains before digitization by automotive-grade ADCs. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth gain stage operating at 16V supply with minimal group delay distortion across 1–5MHz bandwidth. Use Value: 10.8nV/√Hz noise and 4.5MHz GBW preserve SNR >70dB for sub-centimeter object resolution, while 21V/µs slew rate prevents pulse distortion. |
| Infotainment Display Bias Control | OBC Voltage Feedback Loop |
Use Scenario: Regulating backlight LED current in digital instrument clusters using constant-current drivers with analog feedback. IC Role / Device Role / Timing Role: Error amplifier in closed-loop current regulator, comparing sensed voltage across sense resistor to DAC reference. Use Value: Rail-to-rail I/O and 560µA IQ allow direct interface to 3.3V MCU DAC outputs and low-power operation during display sleep modes. | Use Scenario: Providing isolated voltage feedback in 6.6kW on-board chargers, where primary-side controller requires precise 12V bus monitoring. IC Role / Device Role / Timing Role: Isolated amplifier input buffer, conditioning signals from resistive divider before optocoupler or digital isolator transmission. Use Value: ±0.3µV/°C drift and 16V max supply ensure stable regulation accuracy (<±0.2%) across charger thermal cycles, improving charging efficiency and battery longevity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA391QDBVRQ1 | Lower noise (4.7nV/√Hz), lower GBW (1.5MHz), same AEC-Q100 Grade 1, SC70-5 package. | Better for ultra-low-noise DC-coupled sensors; insufficient bandwidth for fast transient detection in motor control. | Select when noise dominates over speed; avoid if >2MHz closed-loop bandwidth required. |
| LM7321Q-Q1 | Higher offset (±1.8mV), higher IQ (1.3mA), wider supply (2.7V–32V), SOIC-8 package. | Higher drive strength (±100mA) and ruggedness for industrial actuator interfaces; less precision for battery monitoring. | Choose for high-output-current legacy designs; not suitable for low-power, high-accuracy current sensing. |
Compared with OPA391QDBVRQ1 and LM7321Q-Q1, TLV9151QDCKRQ1 uniquely balances 4.5MHz bandwidth, 10.8nV/√Hz noise, and 560µA IQ in an automotive-qualified SC70-5 package-enabling compact, high-fidelity signal chains in space-constrained ADAS and powertrain modules without trade-offs in speed, precision, or power.
Availability
TLV9151QDCKRQ1 is available at Aetrix Electronics and suitable for high-reliability automotive applications requiring stable component supply, including electric vehicle battery management, ADAS sensor fusion, and infotainment system power regulation.
Supply support for TLV9151QDCKRQ1 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 IC design expertise and AEC-Q100 process validation.
The TLV915x-Q1 product line was engineered specifically for automotive signal conditioning-delivering precision, speed, and noise immunity in harsh environments where temperature, EMI, and long-term reliability are non-negotiable.
FAQ
What is the maximum operating temperature range for TLV9151QDCKRQ1?
TLV9151QDCKRQ1 is qualified for AEC-Q100 Grade 1 operation, with a specified ambient temperature range of –40°C to +125°C. This rating is validated across all electrical parameters in the datasheet, including offset voltage, CMRR, and quiescent current, ensuring reliable performance in engine bay and powertrain locations.
Does TLV9151QDCKRQ1 support single-supply operation?
Yes, TLV9151QDCKRQ1 supports true single-supply operation from 2.7V to 16V. Its rail-to-rail input stage accepts common-mode voltages down to (V–) – 0.1V and up to (V+) + 0.1V, and its rail-to-rail output swings within 10mV of either rail at no load-making it ideal for 3.3V or 5V microcontroller-based automotive subsystems.
What is the purpose of the SHDN pin on TLV9151QDCKRQ1?
The SHDN pin on TLV9151QDCKRQ1 controls amplifier enable/disable state: driven low ((V–) + 0.2V max) to enable operation, high ((V–) + 1.1V min) to disable. In shutdown, quiescent current drops to 30–45µA and output enters high-impedance state-critical for power sequencing in multi-sensor ADAS ECUs.
How does TLV9151QDCKRQ1 handle electromagnetic interference?
TLV9151QDCKRQ1 integrates EMI/RFI filters on both input pins, achieving ≥60dB EMIRR at 400MHz and maintaining >40dB rejection up to 1GHz. This is verified per TI's standardized test methodology and enables robust operation near cellular antennas, infotainment RF modules, and switching power supplies without external filtering.
Is TLV9151QDCKRQ1 pin-compatible with other members of the TLV915x-Q1 family?
No-TLV9151QDCKRQ1 (SC70-5) is not pin-compatible with TLV9152-Q1 (SOIC/TSSOP/VSSOP-8) or TLV9154-Q1 (SOIC/SOT-23/TSSOP-14). Each variant has distinct pin counts, functions, and layouts. The TLV9151S-Q1 (SOT-23-6) adds a dedicated SHDN pin but differs in footprint and pin assignment from TLV9151QDCKRQ1.
TLV9151QDCKRQ1 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:
- Standard
- Number of Circuits:
- 1
- Output Type:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 21V/µs
- Gain Bandwidth Product:
- 4.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 125 µV
- Current - Supply:
- 560µA
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
TLV9151QDCKRQ1 FAQ
1.How can I place an order for TLV9151QDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9151QDCKRQ1 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 TLV9151QDCKRQ1 reliable?
The price and inventory of TLV9151QDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9151QDCKRQ1 is usually 5 days.
3.What payment methods are accepted for TLV9151QDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9151QDCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9151QDCKRQ1?
TLV9151QDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9151QDCKRQ1 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 TLV9151QDCKRQ1?
For technical support, including TLV9151QDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9151QDCKRQ1 requirements.
6.How does Aetrix verify that TLV9151QDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV9151QDCKRQ1 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 TLV9151QDCKRQ1 meets industry standards.
7.What is the process for return or replacement of TLV9151QDCKRQ1?
All TLV9151QDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV9151QDCKRQ1, 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 TLV9151QDCKRQ1 part is unused and in its original packaging.
Return procedure for TLV9151QDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV9151QDCKRQ1 Tags
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