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Texas Instruments TLV197QDGKRQ1
- Part No.:
- TLV197QDGKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV197QDGKRQ1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:10,414
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Product details
Overview
TLV197QDGKRQ1 from Texas Instruments is a single-channel, AEC-Q100 Grade 1 qualified automotive operational amplifier with rail-to-rail input and output, ±500 µV max offset voltage, 10-MHz gain-bandwidth, and 20 V/µs slew rate. It operates from ±2.25 V to ±18 V (or 4.5 V to 36 V) and delivers ±65 mA output current-optimized for low-side current sensing in battery management systems and motor control.
For engineers reviewing the TLV197QDGKRQ1 datasheet, TLV197QDGKRQ1 pinout, TLV197QDGKRQ1 application, or TLV197QDGKRQ1 equivalent, key selection criteria include its 36-V differential input capability, package-level e-trim™ precision, EMI-filtered inputs, and high capacitive load drive (1 nF) without external compensation.
Technical Context
The TLV197QDGKRQ1 implements a patented two-temperature package-level trim architecture that achieves ≤500 µV offset and ≤5 µV/°C drift over –40°C to +125°C. Its input stage eliminates conventional back-to-back diodes, enabling full 36-V differential input swing without signal distortion or settling delay.
This op amp integrates slew boost, high-output-current output stage, and robust EMI/RFI filtering. It supports stable operation into 1-nF loads and features thermal protection at 140°C-critical for under-hood automotive environments where supply transients and ambient extremes are common.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±2.25 V to ±18 V (or 4.5 V to 36 V) - supports wide-input automotive battery rails including cold-crank and load-dump conditions. |
| Offset Voltage (max) | ±500 µV - enables accurate DC-coupled current sensing down to sub-milliohm shunts without calibration. |
| Gain-Bandwidth | 10 MHz - allows stable closed-loop operation up to ~1 MHz with G ≥ 10, suitable for fast feedback in DC/DC controllers. |
| Slew Rate | 20 V/µs - ensures <1.4 µs 0.01% settling for 10-V steps, critical for transient response in motor phase current monitoring. |
| CMRR (min) | 114 dB - rejects common-mode noise from high-power switching nodes in inverter gate drivers and BMS cell monitors. |
| Output Drive | ±65 mA - directly drives 10-kΩ loads at rail-to-rail swing and sustains 1-nF capacitive loads without oscillation. |
| Input Noise | 5.5 nV/√Hz @ 1 kHz - preserves SNR in precision signal conditioning of low-level sensor outputs (e.g., shunt voltages). |
Pinout & Package
TLV197QDGKRQ1 is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm, optimized for space-constrained automotive PCB layouts and thermally efficient mounting on small copper areas.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN (Pin 3) | Noninverting input | High-impedance node accepting signals up to 0.1 V beyond supply rails; supports true 36-V differential input range. |
| –IN (Pin 2) | Inverting input | Same rail-to-rail common-mode range as +IN; no internal clamping diodes enable clean multiplexed acquisition. |
| OUT (Pin 6) | Amplifier output | Delivers ±65 mA, swings within 15 mV of rails (no load), and drives 1-nF loads stably-no isolation resistor needed. |
| V+ (Pin 7) | Positive supply | Highest potential supply rail; accepts up to +40 V absolute max-robust against load-dump transients. |
| V– (Pin 4) | Negative supply | Lowest potential supply rail; accepts down to –20 V absolute max-supports dual-supply and single-supply configurations. |
| NC (Pins 1, 5, 8) | No internal connection | Unused terminals; may be left floating or tied to ground for mechanical stability-no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| e-Trim™ package-level calibration | Reduces offset and drift errors induced by plastic molding stress-enables production-grade precision without laser trimming. |
| 36-V differential input range | Allows direct connection across high-voltage shunts (e.g., 48-V BMS stacks) without external attenuation or level-shifting. |
| EMI/RFI filtered inputs | Integrated RC filtering suppresses >100-MHz RF interference-prevents rectification-induced DC errors in noisy powertrain environments. |
| Rail-to-rail I/O with 1-nF drive | Eliminates need for external output isolation resistors when driving ADC input capacitors or long traces in EV traction inverters. |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation from –40°C to +125°C ambient-meets requirements for engine bay, OBC, and battery pack locations. |
Applications
| Motor Phase Current Sensing | On-Board Charger (OBC) Voltage Monitoring |
|---|---|
Use Scenario: Real-time measurement of high-frequency PWM currents in 3-phase inverter legs using low-value shunt resistors. IC Role / Device Role / Timing Role: Precision current-sense amplifier with rail-to-rail output driving ADC input; settles in <1.4 µs for 0.01% accuracy at 20-kHz switching. Use Value: Enables accurate torque control and fault detection without gain/offset drift over temperature-critical for ISO 26262 ASIL-B systems. | Use Scenario: Monitoring high-voltage DC bus (up to 800 V via resistive divider) and auxiliary 12-V supply in bidirectional OBC modules. IC Role / Device Role / Timing Role: High-CMRR buffer and level-shifter for isolated ADC front-end; handles >100-V common-mode transients during AC-DC conversion. Use Value: Maintains 114-dB CMRR across –40°C to +125°C, ensuring consistent voltage regulation accuracy despite thermal cycling and EMI. |
| Battery Cell Voltage Balancing | DC/DC Converter Feedback Loop |
Use Scenario: Precision sensing of individual Li-ion cell voltages (2.5–4.3 V) in series-connected packs for active/passive balancing control. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer amplifying cell taps to isolated sigma-delta ADCs; operates from local LDO rail. Use Value: ±500 µV offset ensures <0.01% cell voltage error at 4.2 V-directly improves state-of-charge estimation and longevity. | Use Scenario: Closed-loop voltage regulation in high-efficiency 48-V to 12-V buck converters powering ADAS ECUs and infotainment systems. IC Role / Device Role / Timing Role: Error amplifier in feedback path; requires 10-MHz GBW and 20 V/µs slew to maintain stability with fast load transients. Use Value: Sustains 10-MHz unity-gain bandwidth across full temperature range-enables tighter loop control and reduced output ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision automotive op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV911QDBVRQ1 | Lower supply range (2.7–5.5 V), 8-MHz GBW, ±1.5-mV offset - lacks 36-V differential input and high-voltage operation. | Restricted to low-voltage domains (e.g., MCU analog peripherals); unsuitable for BMS shunt sensing or OBC HV monitoring. | Select only for cost-sensitive 3.3-V/5-V signal chains where 36-V tolerance is unnecessary. |
| LM7332QMA/NOPB | Wider supply (±1.5 V to ±18 V), ±1.5-mV offset, 20-MHz GBW - no AEC-Q100 Grade 1 rating or e-trim precision. | Not qualified for automotive safety-critical use; higher offset limits accuracy in milliohm shunt applications. | Consider for industrial test equipment or non-automotive high-voltage analog where qualification is not required. |
Compared with TSV911QDBVRQ1 and LM7332QMA/NOPB, TLV197QDGKRQ1 uniquely combines AEC-Q100 Grade 1 qualification, 36-V differential input tolerance, and ±500-µV max offset-making it the only option for precision, high-voltage, automotive-grade current sensing where reliability and accuracy are co-dependent.
Availability
TLV197QDGKRQ1 is available at Aetrix Electronics and suitable for battery management systems, inverter motor control, and on-board charger designs requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.
Supply support for TLV197QDGKRQ1 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 deep expertise in automotive-grade IC design and manufacturing.
The TLVx197-Q1 product line was engineered specifically for high-voltage, precision signal conditioning in automotive electrification systems-including BMS, traction inverters, and charging infrastructure-where rail-to-rail performance, thermal stability, and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum differential input voltage specification for TLV197QDGKRQ1?
The TLV197QDGKRQ1 supports a maximum differential input voltage of 36 V-meaning the voltage difference between its +IN and –IN pins can safely reach ±36 V. This is enabled by its patented diode-free input architecture and is explicitly validated per the datasheet's Absolute Maximum Ratings table. This capability allows direct high-side or low-side shunt sensing in 48-V and 800-V EV architectures without external attenuation networks.
Does TLV197QDGKRQ1 require external compensation when driving capacitive loads?
No, TLV197QDGKRQ1 does not require external compensation for capacitive loads up to 1 nF. Its internal high-capacitive-load drive circuitry ensures stable operation with no overshoot or ringing, as verified in Figure 21 and Figure 22 of the SBOS935B datasheet. This eliminates the need for series output resistors in ADC driver or filter interface applications-reducing component count and board area.
Is TLV197QDGKRQ1 qualified for ASIL-B functional safety applications?
TLV197QDGKRQ1 is AEC-Q100 Grade 1 qualified (–40°C to +125°C), which is a foundational requirement for ASIL-B hardware elements. While the device itself is not ISO 26262-certified, its robust parametric stability-especially ±500 µV offset, 114-dB CMRR over temperature, and thermal shutdown at 140°C-makes it suitable for inclusion in ASIL-B system designs when used per TI's functional safety manual and failure mode analysis guidance.
What is the quiescent current of TLV197QDGKRQ1 across its operating temperature range?
TLV197QDGKRQ1 draws 1.0–1.2 mA per amplifier at +25°C and up to 1.5 mA at –40°C to +125°C, as specified in Section 6.7 and 6.8 of SBOS935B. This low, thermally stable IQ enables use in always-on automotive subsystems-such as battery disconnect monitoring or pre-charge sequencing-without compromising system-level power budget targets.
Can TLV197QDGKRQ1 operate from a single 5-V supply?
Yes, TLV197QDGKRQ1 supports single-supply operation from 4.5 V to 36 V. At 5 V, it maintains rail-to-rail input/output swing, 10-MHz GBW, and ±500 µV max offset-verified in Section 6.8 (VS = ±2.25 V to ±4 V, equivalent to 4.5 V to 8 V single supply). This makes it viable for 5-V microcontroller-based sensor interfaces in body electronics and ADAS domain controllers.
TLV197QDGKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 20V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 pA
- Voltage - Input Offset:
- 5 µV
- Current - Supply:
- 1mA
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
TLV197QDGKRQ1 FAQ
1.How can I place an order for TLV197QDGKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV197QDGKRQ1 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 TLV197QDGKRQ1 reliable?
The price and inventory of TLV197QDGKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV197QDGKRQ1 is usually 5 days.
3.What payment methods are accepted for TLV197QDGKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV197QDGKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV197QDGKRQ1?
TLV197QDGKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV197QDGKRQ1 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 TLV197QDGKRQ1?
For technical support, including TLV197QDGKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV197QDGKRQ1 requirements.
6.How does Aetrix verify that TLV197QDGKRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV197QDGKRQ1 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 TLV197QDGKRQ1 meets industry standards.
7.What is the process for return or replacement of TLV197QDGKRQ1?
All TLV197QDGKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV197QDGKRQ1, 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 TLV197QDGKRQ1 part is unused and in its original packaging.
Return procedure for TLV197QDGKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV197QDGKRQ1 Tags
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