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Texas Instruments TLV2197QDGKRQ1
- Part No.:
- TLV2197QDGKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV2197QDGKRQ1.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:10,088
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Product details
Overview
TLV2197QDGKRQ1 from Texas Instruments is a dual-channel, AEC-Q100 Grade 1 automotive-qualified operational amplifier with rail-to-rail input/output, ±500 µV max offset voltage, 10-MHz gain-bandwidth, and 20 V/µs slew rate-designed for precision low-side current sensing in high-voltage motor control and battery management systems.
For engineers reviewing the TLV2197QDGKRQ1 datasheet, TLV2197QDGKRQ1 pinout, TLV2197QDGKRQ1 application, or TLV2197QDGKRQ1 equivalent, key selection criteria include its 36-V differential input capability, ±65 mA output drive, 140 dB CMRR, EMI-filtered inputs, and operation across –40°C to +125°C ambient temperature.
Technical Context
The TLV2197QDGKRQ1 implements e-trim™ technology with two-temperature package-level trimming to achieve low offset drift (±5 µV/°C max) and stable dc precision over automotive temperature extremes. Its patented input protection architecture eliminates conventional back-to-back diodes, enabling full 36-V differential input swing without signal distortion or settling delay.
This dual op amp integrates slew boost and high capacitive load compensation (up to 1 nF), supporting fast, stable closed-loop performance in noisy, high-impedance sensor interfaces and multichannel data acquisition where input transient immunity and channel crosstalk suppression (150 dB at DC) are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±2.25 V to ±18 V or 4.5 V to 36 V - supports single- and dual-supply configurations in 12 V/24 V/48 V automotive systems. |
| Offset Voltage | ±500 µV max - enables accurate current sensing down to sub-milliohm shunt resistors without calibration. |
| CMRR | 140 dB - rejects common-mode noise from high-side switching transients in inverter gate drivers. |
| GBW | 10 MHz - allows stable unity-gain buffer or G = 10 closed-loop operation up to ~1 MHz bandwidth. |
| Slew Rate | 20 V/µs - ensures faithful reproduction of fast current transients in motor phase-leg monitoring. |
| Output Drive | ±65 mA - directly drives 100 Ω loads or RC filters without external buffers in BMS front-end stages. |
| Input Noise | 5.5 nV/√Hz @ 1 kHz - preserves SNR in precision analog front-ends for isolated voltage/current measurement. |
Pinout & Package
TLV2197QDGKRQ1 is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm with exposed thermal pad, optimized for space-constrained automotive PCB layouts and thermal dissipation in high-power modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Noninverting input, Channel A | High-impedance node accepting signals up to supply rails; supports direct connection to shunt resistor high side. |
| +IN B (Pin 5) | Noninverting input, Channel B | Independent high-Z input for second sensing path; enables dual-phase current monitoring in 3-phase inverters. |
| –IN A (Pin 2) | Inverting input, Channel A | Feedback node for closed-loop configuration; accepts resistor divider or DAC reference for programmable gain. |
| –IN B (Pin 6) | Inverting input, Channel B | Separate feedback path for independent gain/offset tuning per channel in multi-sensor systems. |
| OUT A (Pin 1) | Output, Channel A | Rail-to-rail capable output driving ADC input or comparator threshold with <15 mV headroom at rail. |
| OUT B (Pin 7) | Output, Channel B | Full-swing output synchronized with Channel A; supports differential output stage or redundancy checking. |
| V+ (Pin 8) | Positive supply | Highest potential supply rail; connects to 12 V, 24 V, or 36 V system bus with local 100 nF bypassing. |
| V– (Pin 4) | Negative supply | Lowest potential rail; may be ground in single-supply mode or negative rail in dual-supply configurations. |
Key Features
| Feature | Design Value |
|---|---|
| 36-V differential input range | Accepts ±18 V input swing between pins-enables direct connection to unbuffered high-side MOSFET source nodes without clamping diodes. |
| e-trim™ package-level calibration | Eliminates post-mold offset drift; achieves ±500 µV max VOS and ±5 µV/°C max dVOS/dT over full automotive temperature range. |
| EMI/RFI filtered inputs | Integrated RC filtering suppresses >100 MHz RF interference from power converters and wireless charging fields. |
| 1 nF capacitive load drive | Stable operation into large ADC input capacitance or long trace routing without external isolation resistors. |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation from –40°C to +125°C ambient, meeting ISO 26262 ASIL-B functional safety requirements. |
Applications
| Motor Phase Current Sensing | Battery Cell Voltage Monitoring |
|---|---|
Use Scenario: Real-time measurement of individual phase currents in 3-phase traction inverters using low-value shunt resistors. IC Role / Device Role / Timing Role: Dual-channel precision op amp configured as differential amplifiers for simultaneous A/B phase sensing with matched gain and offset. Use Value: Enables accurate torque control and fault detection via 140 dB CMRR rejection of PWM switching noise and 20 V/µs slew rate tracking of fast current edges. | Use Scenario: High-accuracy voltage sampling across series-connected Li-ion cells in EV battery packs. IC Role / Device Role / Timing Role: Rail-to-rail input/output amplifier buffering cell voltages before multiplexed ADC conversion. Use Value: ±500 µV offset ensures <1 mV absolute error in 4.2 V cell measurement; 36-V differential input accommodates stacked cell topologies up to 12 cells. |
| On-Board Charger (OBC) Feedback Loop | DC/DC Converter Current Limiting |
Use Scenario: Isolated current feedback in bidirectional OBC AC-DC and DC-AC stages for grid synchronization and soft-start control. IC Role / Device Role / Timing Role: Precision amplifier conditioning isolated current transformer outputs for digital controller current loop closure. Use Value: Low 5.5 nV/√Hz noise preserves resolution in 16-bit current loops; EMI filtering prevents false triggering during high-frequency switching transitions. | Use Scenario: Peak current sensing in synchronous buck/boost controllers for overcurrent protection and cycle-by-cycle limiting. IC Role / Device Role / Timing Role: Fast-settling op amp converting shunt voltage to controller current sense input with minimal propagation delay. Use Value: 1.4 µs 0.01% settling time and 0.2 µs overload recovery enable precise pulse-width modulation at >500 kHz switching frequencies. |
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 |
|---|---|---|---|
| LM7332QMA/NOPB | Higher quiescent current (2.3 mA vs 1 mA), lower GBW (20 MHz), no e-trim - requires external calibration for <1 mV accuracy. | Less suitable for ultra-low-power always-on BMS monitoring; better for high-speed signal conditioning where offset drift is secondary. | Select when higher speed (>10 MHz) is prioritized over offset stability and supply current. |
| OPA2991QDGKRQ1 | Lower noise (3.5 nV/√Hz), same AEC-Q100 Grade 1 rating, but narrower supply (±2.75 V to ±18 V) and no 36-V differential input capability. | Not usable in high-common-mode applications like direct high-side shunt sensing; limited to mid-rail referenced designs. | Choose for ultra-low-noise sensor interfaces where common-mode voltage stays within ±15 V of ground. |
Compared with LM7332QMA/NOPB and OPA2991QDGKRQ1, TLV2197QDGKRQ1 uniquely combines 36-V differential input tolerance, e-trim dc precision, and 1 mA quiescent current-making it optimal for compact, thermally constrained automotive current sensing where rail-to-rail operation and EMI resilience are mandatory.
Availability
TLV2197QDGKRQ1 is available at Aetrix Electronics and suitable for inverter and motor control, on-board charger (OBC), and battery management system (BMS) applications requiring stable component supply across extended automotive temperature ranges and long production lifecycles.
Supply support for TLV2197QDGKRQ1 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 TLVx197-Q1 product line was engineered specifically for high-voltage, high-precision signal conditioning in automotive powertrain and energy storage systems-emphasizing AEC-Q100 reliability, dc accuracy under thermal stress, and robustness against EMI and fast transients.
FAQ
What is the maximum differential input voltage specification for TLV2197QDGKRQ1?
The TLV2197QDGKRQ1 supports a maximum differential input voltage of ±36 V-meaning the voltage difference between its +IN and –IN pins can reach 36 V without damage or clipping. This is enabled by its patented input protection architecture and makes TLV2197QDGKRQ1 suitable for direct high-side current sensing in 48 V automotive systems and multiplexed data acquisition where input transients exceed rail limits.
Does TLV2197QDGKRQ1 require external trimming or calibration for automotive-grade accuracy?
No, TLV2197QDGKRQ1 does not require external trimming or calibration. It uses Texas Instruments' e-trim™ technology with package-level two-temperature trimming performed after plastic molding, achieving ±500 µV max input offset voltage and ±5 µV/°C max drift over –40°C to +125°C. This factory calibration is permanent and eliminates field calibration steps for TLV2197QDGKRQ1 in production BMS or inverter modules.
Can TLV2197QDGKRQ1 drive a 1-nF capacitive load stably without external compensation?
Yes, TLV2197QDGKRQ1 is explicitly characterized for stable operation with up to 1 nF capacitive load-verified in TI's SBOS935B datasheet Figure 21 and Figure 22. Its internal high capacitive load compensation circuitry ensures <5% overshoot and monotonic step response, eliminating the need for series isolation resistors when interfacing with SAR ADCs or long PCB traces typical in automotive ECUs.
What is the operating temperature range qualified for TLV2197QDGKRQ1?
TLV2197QDGKRQ1 is AEC-Q100 qualified for Grade 1 operation, meaning it is specified and tested for continuous functionality from –40°C to +125°C ambient temperature. Thermal metrics-including RθJA = 158°C/W for the DGK package-are provided in the datasheet to support board-level thermal design validation for TLV2197QDGKRQ1 in engine bay or power module environments.
How does the EMI/RFI filtering in TLV2197QDGKRQ1 improve system-level robustness?
The integrated EMI/RFI filtering on TLV2197QDGKRQ1 inputs attenuates high-frequency interference (>100 MHz) from sources such as wireless charging fields, ignition systems, and high-frequency DC/DC converters. This prevents rectification of RF signals into erroneous dc offsets or oscillation-ensuring reliable operation of TLV2197QDGKRQ1 in electric powertrain control units without additional external filtering components.
TLV2197QDGKRQ1 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:
- 2
- 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 (x2 Channels)
- 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
TLV2197QDGKRQ1 FAQ
1.How can I place an order for TLV2197QDGKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2197QDGKRQ1 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 TLV2197QDGKRQ1 reliable?
The price and inventory of TLV2197QDGKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2197QDGKRQ1 is usually 5 days.
3.What payment methods are accepted for TLV2197QDGKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2197QDGKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2197QDGKRQ1?
TLV2197QDGKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2197QDGKRQ1 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 TLV2197QDGKRQ1?
For technical support, including TLV2197QDGKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2197QDGKRQ1 requirements.
6.How does Aetrix verify that TLV2197QDGKRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV2197QDGKRQ1 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 TLV2197QDGKRQ1 meets industry standards.
7.What is the process for return or replacement of TLV2197QDGKRQ1?
All TLV2197QDGKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2197QDGKRQ1, 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 TLV2197QDGKRQ1 part is unused and in its original packaging.
Return procedure for TLV2197QDGKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2197QDGKRQ1 Tags
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