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Texas Instruments TLV9161QDCKRQ1
- Part No.:
- TLV9161QDCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV9161QDCKRQ1.pdf
- Description:
- AUTOMOTIVE, SINGLE, 16-V 11-MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:2,378
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Product details
Overview
TLV9161QDCKRQ1 from Texas Instruments is a single-channel, AEC-Q100 Grade 1 automotive operational amplifier with rail-to-rail input and output, ±210 µV offset voltage, 11 MHz gain-bandwidth product, and 33 V/µs slew rate - deployed in high-side current sensing for HEV/EV inverter control and ADAS powertrain monitoring.
For engineers reviewing the TLV9161QDCKRQ1 datasheet, TLV9161QDCKRQ1 pinout, TLV9161QDCKRQ1 application, or TLV9161QDCKRQ1 equivalent, key selection criteria include its 125°C ambient operation, ±73 mA short-circuit output drive, 4.2 nV/√Hz broadband noise at 10 kHz, and SC70-5 (DCK) package compatibility with space-constrained automotive PCB layouts.
Technical Context
The TLV9161QDCKRQ1 employs a patented MUX-friendly front-end architecture enabling full 16 V differential input voltage tolerance without clamping diodes - eliminating transient-induced settling delays in multiplexed sensor interfaces. Its dual-input-stage design (NCH and PCH) supports rail-to-rail common-mode range across ±1.35 V to ±8 V supplies.
It delivers unity-gain stability with 64° phase margin into 20 pF loads, features robust EMIRR > 80 dB up to 1 GHz, and maintains 110 dB CMRR over –40°C to +125°C - critical for precision current sensing in noisy automotive power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V (±1.35 V to ±8 V): supports 12 V battery systems and extended-range automotive rails without external regulators. |
| Offset Voltage (TYP) | ±210 µV: enables sub-1% error in 50 mV shunt-based current measurement at room temperature. |
| Offset Drift (MAX) | ±0.25 µV/°C: contributes < ±30 µV total drift over –40°C to +125°C, minimizing calibration burden in powertrain modules. |
| Gain-Bandwidth Product | 11 MHz: supports closed-loop bandwidth > 1 MHz at G = 10 for fast-response motor phase current feedback. |
| Slew Rate | 33 V/µs: ensures distortion-free amplification of 10 V step signals within 0.42 µs (0.01% settling), critical for PWM-driven current loops. |
| Input Bias Current | ±10 pA: allows use with high-impedance sensor bridges or RC filters without significant DC error. |
| Output Short-Circuit Current | ±73 mA: sustains fault conditions in high-side sensing configurations without latch-up or thermal shutdown. |
Pinout & Package
TLV9161QDCKRQ1 is packaged in a 5-pin SC70 (DCK) outline measuring 2.0 mm × 2.1 mm - optimized for compact automotive control units and ADAS ECUs where thermal performance and board area are constrained.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+ | Noninverting input | Accepts rail-to-rail common-mode signals; enables direct connection to shunt resistor high-side node without level-shifting. |
| IN– | Inverting input | Differential input referenced to system ground or virtual ground; supports bidirectional current sensing with matched trace routing. |
| OUT | Amplifier output | Rail-to-rail swing (≤ 6 mV from rails at no load) drives ADC inputs or comparator thresholds directly. |
| V– | Negative supply | Connects to system ground or negative rail; supports single-supply (2.7 V–16 V) or split-supply (±1.35 V–±8 V) operation. |
| V+ | Positive supply | Accepts up to 16 V; internal protection prevents damage during load-dump transients per ISO 7637-2. |
Key Features
| Feature | Design Value |
|---|---|
| MUX-Friendly Input Architecture | 16 V differential input tolerance without clamping diodes - eliminates settling delay and distortion in multiplexed battery cell monitoring. |
| AEC-Q100 Grade 1 Qualification | Validated for –40°C to +125°C operation with HBM ESD ≥ 2500 V and CDM ≥ 1500 V - meets automotive reliability requirements out-of-box. |
| Low 4.2 nV/√Hz Noise at 10 kHz | Enables high-resolution current sensing in switching inverters where PWM harmonics dominate the 1–100 kHz band. |
| EMI Immunity (EMIRR > 80 dB) | Rejects RF interference from infotainment radios and cellular modules without external filtering - reduces BOM cost and layout complexity. |
| Rail-to-Rail Input & Output | Supports full-scale signal acquisition across entire supply range - essential for low-voltage microcontroller ADC interfacing in 3.3 V domains. |
Applications
| High-Side Current Sensing | Low-Side Current Sensing |
|---|---|
Use Scenario: Monitoring motor phase current in HEV/EV inverter gate drivers using a shunt resistor placed between battery positive and IGBT source. IC Role / Device Role / Timing Role: Precision differential amplifier conditioning shunt voltage with minimal offset drift over temperature and time. Use Value: Enables accurate torque control and overcurrent protection with < ±0.5% total error across –40°C to +125°C. |
Use Scenario: Measuring battery pack discharge current in ADAS domain controllers via ground-referenced shunt. IC Role / Device Role / Timing Role: Single-supply op amp providing rail-to-rail output to 3.3 V SAR ADC with fast settling (< 0.42 µs). Use Value: Eliminates need for level-shifting circuitry while maintaining 16-bit effective resolution under dynamic load steps. |
| Powertrain Current Sensor | On-Board Charger (OBC) Feedback |
Use Scenario: Closed-loop current regulation in 48 V mild-hybrid starter-generator control modules. IC Role / Device Role / Timing Role: High-speed, low-drift amplifier feeding isolated sigma-delta modulator input in isolated current sensing path. Use Value: Supports 20 kHz PWM switching with < 0.1% gain error and < 100 ns overload recovery for fault detection. |
Use Scenario: AC line current sensing in bi-directional OBC AC/DC stage for grid synchronization and safety monitoring. IC Role / Device Role / Timing Role: Robust front-end amplifier rejecting common-mode noise from high-frequency SiC MOSFET switching. Use Value: Maintains > 85 dB CMRR at 100 kHz, ensuring stable feedback despite 100 V/µs dv/dt transients on adjacent traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA391QDBVRQ1 | Lower quiescent current (1.2 mA vs. 2.48 mA), but narrower GBW (4.5 MHz) and higher offset (±120 µV max). | Better suited for always-on battery monitoring; less suitable for high-bandwidth motor control loops. | Select when ultra-low IQ dominates over speed and precision in Grade 1 ambient environments. |
| TSV911QDBVRQ1 | Higher offset drift (±3.5 µV/°C), lower slew rate (0.85 V/µs), and no MUX-friendly input architecture. | Limited to low-frequency body electronics; cannot support fast-switching inverter current sensing. | Choose only for cost-sensitive, non-safety-critical lighting or HVAC applications where bandwidth < 100 kHz suffices. |
Compared with OPA391QDBVRQ1 and TSV911QDBVRQ1, TLV9161QDCKRQ1 provides superior AC performance (11 MHz GBW, 33 V/µs) and DC precision (±0.25 µV/°C drift) - making it the preferred choice for real-time current control in safety-critical powertrain and ADAS subsystems.
Availability
TLV9161QDCKRQ1 is available at Aetrix Electronics and suitable for HEV/EV inverter control, ADAS powertrain monitoring, and on-board charger feedback requiring stable component supply across automotive production lifecycles.
Supply support for TLV9161QDCKRQ1 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 for automotive, industrial, and personal electronics markets.
The TLV916x-Q1 family was designed specifically for high-precision, high-reliability current sensing in AEC-Q100 Grade 1 automotive power systems - emphasizing low drift, EMI resilience, and MUX-compatible input architecture.
FAQ
What is the maximum operating temperature range for TLV9161QDCKRQ1?
TLV9161QDCKRQ1 is qualified for AEC-Q100 Grade 1 operation from –40°C to +125°C ambient temperature. This rating is validated across all electrical parameters in the datasheet, including offset voltage drift, CMRR, and open-loop gain - ensuring reliable performance in engine bay and powertrain control unit environments where thermal stress is extreme.
Does TLV9161QDCKRQ1 support single-supply operation?
Yes, TLV9161QDCKRQ1 supports true single-supply operation from 2.7 V to 16 V. Its rail-to-rail input and output stages allow full common-mode range from V– to V+, enabling direct interface with 3.3 V or 5 V microcontrollers and ADCs without external level-shifting circuitry - a key advantage in compact automotive ECUs.
What package type is used for TLV9161QDCKRQ1?
TLV9161QDCKRQ1 uses the SC70-5 (DCK) package: a 2.0 mm × 2.1 mm surface-mount outline with 0.65 mm pitch. This compact footprint is ideal for space-constrained automotive modules such as ADAS camera control units and battery management system daughterboards.
How does TLV9161QDCKRQ1 achieve MUX-friendly operation?
TLV9161QDCKRQ1 uses a patented input architecture that eliminates conventional clamping diodes, enabling full 16 V differential input voltage tolerance. This avoids transient-induced current paths and settling delays in multiplexed sensor arrays - verified by < 0.42 µs 0.01% settling time on 10 V steps with 20 pF load.
Is TLV9161QDCKRQ1 pin-compatible with other TLV916x-Q1 variants?
No - TLV9161QDCKRQ1 (single-channel, SC70-5) has a different pinout and package than TLV9162-Q1 (dual, SOIC/VSSOP/TSSOP-8) and TLV9164-Q1 (quad, SOIC/TSSOP-14). Each variant requires unique PCB layout; no pin-to-pin compatibility exists across channel counts or packages.
TLV9161QDCKRQ1 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:
- 33V/µs
- Gain Bandwidth Product:
- 11 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 210 µV
- Current - Supply:
- 2.48mA
- Current - Output / Channel:
- 73 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
TLV9161QDCKRQ1 FAQ
1.How can I place an order for TLV9161QDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9161QDCKRQ1 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 TLV9161QDCKRQ1 reliable?
The price and inventory of TLV9161QDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9161QDCKRQ1 is usually 5 days.
3.What payment methods are accepted for TLV9161QDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9161QDCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9161QDCKRQ1?
TLV9161QDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9161QDCKRQ1 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 TLV9161QDCKRQ1?
For technical support, including TLV9161QDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9161QDCKRQ1 requirements.
6.How does Aetrix verify that TLV9161QDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV9161QDCKRQ1 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 TLV9161QDCKRQ1 meets industry standards.
7.What is the process for return or replacement of TLV9161QDCKRQ1?
All TLV9161QDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV9161QDCKRQ1, 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 TLV9161QDCKRQ1 part is unused and in its original packaging.
Return procedure for TLV9161QDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV9161QDCKRQ1 Tags
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