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Texas Instruments OPA2197QDGKRQ1
- Part No.:
- OPA2197QDGKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2197QDGKRQ1.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,746
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Product details
Overview
OPA2197QDGKRQ1 from Texas Instruments is a dual-channel, AEC-Q100 Grade 1 automotive operational amplifier with rail-to-rail input/output, ±250 µV max input offset voltage, ±0.2 µV/°C max offset drift, 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 single supply) and delivers precision signal conditioning in high-voltage motor control and battery management systems.
For engineers reviewing the OPA2197QDGKRQ1 datasheet, OPA2197QDGKRQ1 pinout, OPA2197QDGKRQ1 application, or OPA2197QDGKRQ1 equivalent, this page provides verified package mapping (8-pin VSSOP), confirmed dual-channel pin functions, temperature-stable dc precision specs, and automotive-grade ESD/thermal performance data essential for BMS and inverter design validation.
Technical Context
The OPA2197QDGKRQ1 uses e-trim™ technology-package-level trimming performed post-molding-to minimize input transistor mismatch and packaging-induced errors, achieving ultra-low offset and drift over temperature. Its architecture supports rail-to-rail common-mode input range extending to both supply rails and differential input voltage up to the full supply span.
It integrates robust output drive capability (±65 mA), 1 nF capacitive load tolerance, and EMI/RFI-filtered inputs. The device maintains 140 dB CMRR and 134 dB open-loop gain at 25°C, enabling high-accuracy closed-loop configurations in noisy automotive environments without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±250 µV maximum (ensures ≤0.5 mV error in 2 V full-scale sensor interfaces at 125°C) |
| Offset Drift | ±0.2 µV/°C maximum (guarantees <1 µV total drift across –40°C to +125°C operating range) |
| Gain-Bandwidth | 10 MHz (supports stable unity-gain buffers and 2nd-order anti-aliasing filters up to ~1.6 MHz) |
| Slew Rate | 20 V/µs (enables clean 10-V step response in <1.4 µs to 0.01% settling) |
| Supply Range | ±2.25 V to ±18 V / 4.5 V to 36 V (direct compatibility with 12 V and 24 V automotive battery rails) |
| Quiescent Current | 1.2 mA per amplifier typical (enables dual-opamp precision sensing in low-power wake-up circuits) |
| CMRR | 140 dB minimum (rejects >100,000:1 common-mode noise in shunt-based current monitoring) |
Pinout & Package
OPA2197QDGKRQ1 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 pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Noninverting input, Channel A | Accepts signals up to V– – 0.1 V and V+ + 0.1 V; enables true rail-to-rail input stage operation |
| –IN A (Pin 2) | Inverting input, Channel A | Differential pair node; matched to +IN A for <1 µV input offset contribution |
| OUT A (Pin 1) | Output, Channel A | Drives loads down to 2 kΩ while maintaining rail-to-rail swing (≤500 mV from rail at 2 kΩ) |
| V– (Pin 4) | Negative power supply | Low-impedance return path; must be decoupled within 1 cm of pin for stability with 1 nF loads |
| +IN B (Pin 5) | Noninverting input, Channel B | Independent input for second signal path; no crosstalk (<130 dB at 100 kHz) |
| –IN B (Pin 6) | Inverting input, Channel B | Electrically isolated from Channel A inputs; supports dual independent feedback networks |
| OUT B (Pin 7) | Output, Channel B | Delivers identical ac/dc performance as OUT A; supports parallel output driving or dual-sensor buffering |
| V+ (Pin 8) | Positive power supply | Accepts up to 40 V absolute max; internal protection prevents latch-up during load dump transients |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ offset calibration | Post-package trim ensures ±250 µV max VOS over temperature without requiring system-level calibration |
| Rail-to-rail I/O | Input common-mode range includes both supply rails; output swings within 15 mV of rails under no load |
| High capacitive load drive | Stable with up to 1 nF directly on output-eliminates need for isolation resistors in ADC driver stages |
| EMI/RFI filtered inputs | Integrated input filtering suppresses >100 MHz RF interference common in motor inverter switching noise |
| AEC-Q100 Grade 1 | Qualified for –40°C to +125°C ambient operation with 150°C junction limit and thermal shutdown at 140°C |
Applications
| Battery Management System (BMS) | Inverter Current Sensing |
|---|---|
Use Scenario: High-side and low-side shunt voltage amplification in 48 V and 800 V EV battery packs. IC Role / Device Role / Timing Role: Precision dual-channel difference amplifier with matched gain paths for cell voltage and pack current monitoring. Use Value: ±250 µV offset ensures <0.01% full-scale error in 100 mV shunt measurements across automotive temperature range. |
Use Scenario: Isolated current feedback in traction inverter gate driver auxiliary supplies. IC Role / Device Role / Timing Role: Fast-settling buffer for Hall-effect or current transformer outputs feeding PWM controllers. Use Value: 20 V/µs slew rate and 1.4 µs 0.01% settling enable accurate sampling of 10 kHz switching waveforms. |
| On-Board Charger (OBC) Control | DC/DC Converter Voltage Loop |
Use Scenario: Regulation loop error amplification in bidirectional AC/DC and DC/DC stages of OBC modules. IC Role / Device Role / Timing Role: Dual op-amp implementing primary-side voltage reference buffer and secondary-side isolated feedback amplifier. Use Value: 10 MHz GBW supports phase margin >60° in 300 kHz LLC resonant converter voltage loops. |
Use Scenario: Output voltage sensing and error generation in 48 V–12 V automotive buck converters. IC Role / Device Role / Timing Role: Rail-to-rail input amplifier conditioning resistor-divider output before ADC input. Use Value: 140 dB CMRR rejects common-mode noise from high di/dt switching nodes adjacent to sense traces. |
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 |
|---|---|---|---|
| LM2904BQDRQ1 | Higher 700 µV max VOS, 1.2 MHz GBW, no e-trim; lower quiescent current (0.35 mA) | Acceptable for cost-sensitive 12 V systems where <0.1% accuracy suffices; not suitable for 48 V+ BMS voltage monitoring | Select when budget constraints outweigh precision requirements and bandwidth needs are <200 kHz |
| TSV912AQDRQ1 | Lower 1.1 MHz GBW, 6.5 V/µs slew rate, ±1.5 mV VOS; rail-to-rail output only (not input) | Valid for low-speed sensor buffering (e.g., cabin temperature); cannot support fast-settling current loop feedback | Choose for non-critical analog front-ends where supply voltage is limited to ≤5.5 V and speed is secondary |
Compared with LM2904BQDRQ1 and TSV912AQDRQ1, the OPA2197QDGKRQ1 delivers 2.8× lower offset, 8.3× higher bandwidth, and true rail-to-rail input capability-making it uniquely suited for high-accuracy, high-speed automotive power conversion feedback paths where measurement integrity directly impacts functional safety compliance.
Availability
OPA2197QDGKRQ1 is available at Aetrix Electronics and suitable for battery management systems, traction inverter controls, and on-board charger designs requiring stable component supply across extended automotive temperature ranges and long production lifecycles.
Supply support for OPA2197QDGKRQ1 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 reliability and functional safety certification.
The OPAx197-Q1 product line was engineered specifically for high-voltage, high-precision automotive powertrain and energy storage applications-delivering e-trim™ stability, robust EMC performance, and AEC-Q100 Grade 1 qualification in compact packages.
FAQ
What is the maximum operating junction temperature for OPA2197QDGKRQ1?
The OPA2197QDGKRQ1 features thermal shutdown activation at 140°C junction temperature and is rated for continuous operation up to 150°C junction. Its VSSOP package exhibits a junction-to-ambient thermal resistance (RθJA) of 158°C/W, enabling reliable operation in engine bay or power module environments when mounted on ≥2 oz copper with thermal vias.
Does OPA2197QDGKRQ1 support single-supply operation?
Yes, OPA2197QDGKRQ1 supports true single-supply operation from 4.5 V to 36 V. Its rail-to-rail input stage accepts common-mode voltages from V– – 0.1 V to V+ + 0.1 V, and its output swings within 15 mV of each rail under no load-making it ideal for 12 V or 24 V automotive systems without split supplies.
How does the e-trim™ technology in OPA2197QDGKRQ1 improve long-term stability?
e-trim™ performs final laser trimming at the package level after plastic molding, minimizing stress-induced drift from encapsulation. This yields ±0.2 µV/°C max offset drift over –40°C to +125°C-significantly tighter than die-level trimmed op amps-and eliminates post-mounting calibration in OPA2197QDGKRQ1-based BMS voltage monitors.
Can OPA2197QDGKRQ1 drive a 1 nF capacitive load without oscillation?
Yes, OPA2197QDGKRQ1 is characterized to drive up to 1 nF capacitive loads stably, as confirmed in Figure 5-30 and Figure 5-31 of the datasheet. No external series resistor is required, simplifying ADC driver and filter interface designs-unlike many general-purpose op amps that require RISO ≥ 25 Ω for 1 nF loads.
What is the ESD rating of OPA2197QDGKRQ1, and how does it impact board layout?
OPA2197QDGKRQ1 meets AEC-Q100-002 HBM Level 3A (±4000 V) and AEC-Q100-011 CDM Level C4A (±500 V). These ratings allow direct routing of inputs near high-noise zones (e.g., inverter gate drivers), though layout best practices-short traces, ground guard rings, and local 100 nF ceramic decoupling at V+ and V–-remain essential for full immunity.
OPA2197QDGKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- e-trim™
- 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:
- 25 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
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA2197QDGKRQ1 FAQ
1.How can I place an order for OPA2197QDGKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2197QDGKRQ1 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 OPA2197QDGKRQ1 reliable?
The price and inventory of OPA2197QDGKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2197QDGKRQ1 is usually 5 days.
3.What payment methods are accepted for OPA2197QDGKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2197QDGKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2197QDGKRQ1?
OPA2197QDGKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2197QDGKRQ1 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 OPA2197QDGKRQ1?
For technical support, including OPA2197QDGKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2197QDGKRQ1 requirements.
6.How does Aetrix verify that OPA2197QDGKRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA2197QDGKRQ1 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 OPA2197QDGKRQ1 meets industry standards.
7.What is the process for return or replacement of OPA2197QDGKRQ1?
All OPA2197QDGKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2197QDGKRQ1, 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 OPA2197QDGKRQ1 part is unused and in its original packaging.
Return procedure for OPA2197QDGKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2197QDGKRQ1 Tags
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LM358DT
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