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Texas Instruments OPA4197QPWRQ1
- Part No.:
- OPA4197QPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
OPA4197QPWRQ1.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,205
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Product details
Overview
OPA4197QPWRQ1 from Texas Instruments is a quad-channel, AEC-Q100 Grade 1 automotive operational amplifier with rail-to-rail input/output, ±250 µV max offset voltage, ±0.2 µV/°C max drift, 10 MHz GBW, 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 battery management systems and motor control circuits.
For engineers reviewing the OPA4197QPWRQ1 datasheet, OPA4197QPWRQ1 pinout, OPA4197QPWRQ1 application, or OPA4197QPWRQ1 equivalent, key selection criteria include its e-trim™ offset stability over temperature, high capacitive load drive (1 nF), differential input-voltage range to supply rail, EMI/RFI filtered inputs, and robust 125°C operating capability for under-hood automotive use.
Technical Context
The OPA4197QPWRQ1 implements proprietary package-level e-trim™ technology post-molding to minimize input transistor mismatch and packaging-induced offset errors. Its architecture supports rail-to-rail common-mode input range extending to both supply rails and output swing within 15 mV of rails at no load.
It features high open-loop gain (134 dB typ), 140 dB CMRR, ±5 pA input bias current, and low 5.5 nV/√Hz input voltage noise at 1 kHz - enabling high-accuracy closed-loop configurations in noisy, high-voltage industrial and automotive environments without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset voltage | ±250 µV maximum - ensures ≤0.5 mV error in 2 V full-scale sensor interfaces at room temperature |
| Offset drift | ±0.2 µV/°C maximum - maintains <1 µV total drift across –40°C to +125°C operating range |
| GBW | 10 MHz - supports stable unity-gain buffers and active filters up to ~1 MHz with phase margin >60° |
| Slew rate | 20 V/µs - enables clean 10-V step response in ≤0.5 µs, critical for fast-settling BMS cell monitoring |
| Supply range | ±2.25 V to ±18 V (or 4.5 V to 36 V) - compatible with 12 V/24 V automotive batteries and isolated DC/DC outputs |
| Capacitive load drive | 1 nF - eliminates need for isolation resistors when driving ADC input filters or long PCB traces |
| Quiescent current | 1 mA per amplifier - enables low-power operation in always-on vehicle subsystems |
Pinout & Package
OPA4197QPWRQ1 is packaged in a 14-pin TSSOP (PW) with 5.00 mm × 4.40 mm footprint, optimized for thermal performance and board space efficiency in automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Noninverting input, channel A | Accepts analog signals up to supply rails; enables high-impedance sensing of battery cell voltages |
| –IN A (Pin 2) | Inverting input, channel A | Used for feedback or differential measurement; supports rail-to-rail common-mode range |
| OUT A (Pin 1) | Output, channel A | Drives loads up to ±65 mA; swings within 15 mV of rails with no load |
| V+ (Pin 4) | Positive power supply | Connects to main system rail (e.g., 3.3 V, 5 V, or 12 V); must be decoupled locally |
| V– (Pin 11) | Negative power supply | Ground or negative rail; supports dual-supply operation down to –18 V |
| +IN B (Pin 5) | Noninverting input, channel B | Dedicated input for second sensor channel; electrically isolated from channel A |
| –IN B (Pin 6) | Inverting input, channel B | Independent feedback node; enables simultaneous multi-channel precision amplification |
| OUT B (Pin 7) | Output, channel B | Full-performance output identical to OUT A; supports independent load driving |
| +IN C (Pin 10) | Noninverting input, channel C | Third high-precision input path; shares same e-trim™ calibration as other channels |
| –IN C (Pin 9) | Inverting input, channel C | Configurable for transimpedance or difference amplification without crosstalk |
| OUT C (Pin 8) | Output, channel C | Delivers same AC/DC specs as OUT A/B; verified 150 dB dc crosstalk suppression |
| +IN D (Pin 12) | Noninverting input, channel D | Fourth independent input; enables full quad-channel BMS voltage monitoring in one IC |
| –IN D (Pin 13) | Inverting input, channel D | Supports matched gain configurations across all four channels for consistent calibration |
| OUT D (Pin 14) | Output, channel D | Final output with rail-to-rail swing and 1 nF capacitive load capability |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ offset calibration | Package-level trimming after molding reduces thermal hysteresis and long-term drift in automotive thermal cycles |
| Rail-to-rail I/O | Enables full utilization of supply range in low-voltage systems (e.g., 3.3 V MCU interfaces) without level-shifting |
| Differential input-voltage range to supply rail | Allows direct connection to shunt resistors or thermistors biased at V+ or V– without external clamping |
| EMI/RFI filtered inputs | Integrated input filtering suppresses AM-band interference common in vehicle cabins and motor drives |
| High capacitive load drive (1 nF) | Eliminates need for output series resistors when driving anti-aliasing filters or long cables |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with full parametric testing per automotive reliability standards |
Applications
| Inverter and Motor Control | DC/DC Converter |
|---|---|
Use Scenario: Current sensing in three-phase inverter legs using low-side shunt resistors. IC Role / Device Role / Timing Role: Precision current amplifier with rail-to-rail input accepting signals near ground and high common-mode noise. Use Value: ±250 µV offset ensures <0.1% current measurement error at 100 A full scale; 20 V/µs slew rate captures fast switching transients without distortion. | Use Scenario: Voltage feedback loop in isolated flyback or forward converters with wide input range. IC Role / Device Role / Timing Role: Error amplifier comparing regulated output to reference; requires high PSRR and low drift. Use Value: 140 dB CMRR and ±0.2 µV/°C drift maintain regulation accuracy across line/load/temperature variations; 10 MHz GBW supports >500 kHz loop bandwidth. |
| On-board (OBC) and Wireless Charger | Battery Management System (BMS) |
Use Scenario: Isolated voltage and temperature monitoring in bidirectional OBC control boards. IC Role / Device Role / Timing Role: Signal conditioner for isolated ADC inputs; handles high dv/dt noise from GaN switches. Use Value: EMI/RFI filtered inputs reject >100 V/µs common-mode transients; rail-to-rail output drives SAR ADC references directly. | Use Scenario: Cell voltage monitoring across 12–16 series Li-ion cells in EV traction packs. IC Role / Device Role / Timing Role: Quad-channel precision amplifier acquiring synchronized cell voltages with matched gain/offset. Use Value: Four independent channels with <1 µV inter-channel offset drift enable <0.5 mV cell-to-cell voltage matching; 125°C rating supports under-pack mounting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4192QPWRQ1 | Lower offset (±150 µV max), lower noise (5.5 nV/√Hz), but no e-trim™ - uses factory trim only | Lacks production-tested offset stability over temperature; less suitable for extended-life automotive deployments | Prefer OPA4197QPWRQ1 where long-term drift specification is mandatory per ISO 26262 ASIL-B requirements |
| LM324QPWRQ1 | Wider supply range (3 V to 36 V), but higher offset (±3 mV), slower (1.2 MHz GBW), and no rail-to-rail I/O | Not suitable for precision voltage monitoring; limited to basic signal conditioning in non-safety-critical functions | Select OPA4197QPWRQ1 when sub-millivolt accuracy, high speed, or rail-to-rail operation is required in safety-relevant subsystems |
Compared with OPA4192QPWRQ1 and LM324QPWRQ1, the OPA4197QPWRQ1 uniquely combines AEC-Q100 Grade 1 qualification, e-trim™-guaranteed offset stability, and 10 MHz bandwidth - making it the only option among the three qualified for ASIL-B-compliant cell voltage acquisition and real-time motor current control.
Availability
OPA4197QPWRQ1 is available at Aetrix Electronics and suitable for battery management systems, inverter controls, on-board chargers, and wireless charging modules requiring stable component supply across automotive production lifecycles.
Supply support for OPA4197QPWRQ1 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 OPAx197-Q1 product line was engineered specifically for high-voltage, high-precision automotive signal conditioning - targeting BMS, motor control, and power conversion applications demanding AEC-Q100 compliance and long-term parametric stability.
FAQ
What is the maximum operating temperature for OPA4197QPWRQ1?
The OPA4197QPWRQ1 is qualified for AEC-Q100 Grade 1 operation, supporting continuous ambient temperatures from –40°C to +125°C. Its internal thermal protection activates at 140°C junction temperature, providing fail-safe shutdown during overload conditions. This makes OPA4197QPWRQ1 suitable for under-hood automotive locations where ambient heat exceeds 105°C.
Does OPA4197QPWRQ1 support single-supply operation?
Yes, OPA4197QPWRQ1 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 the output swings within 15 mV of both rails at no load - enabling direct interfacing with 3.3 V or 5 V microcontrollers without level-shifting circuitry.
What is the capacitive load drive capability of OPA4197QPWRQ1?
The OPA4197QPWRQ1 is characterized to drive up to 1 nF capacitive loads without oscillation or excessive overshoot, as verified in TI's SBOS918B datasheet Figure 5-30 and Figure 5-31. This eliminates the need for output isolation resistors when driving ADC input filters, long PCB traces, or EMI suppression networks in automotive ECUs.
How does the e-trim™ technology in OPA4197QPWRQ1 improve performance?
The e-trim™ technology in OPA4197QPWRQ1 performs final offset and drift calibration at the package level after plastic molding - reducing errors induced by mechanical stress and die attach variation. This results in guaranteed ±250 µV max offset and ±0.2 µV/°C max drift over temperature, significantly tighter than factory-trimmed alternatives like OPA4192QPWRQ1.
Is OPA4197QPWRQ1 pin-compatible with other members of the OPAx197-Q1 family?
No - OPA4197QPWRQ1 (14-pin TSSOP) is not pin-compatible with OPA197-Q1 or OPA2197-Q1 (both 8-pin VSSOP). While functional behavior and electrical specs are aligned across the family, the quad-channel OPA4197QPWRQ1 requires its dedicated 14-pin layout. Migration between variants necessitates PCB redesign and layout verification per TI's recommended practices in SBOS918B Section 7.4.
OPA4197QPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- e-trim™
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 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:
- 14-TSSOP
OPA4197QPWRQ1 FAQ
1.How can I place an order for OPA4197QPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4197QPWRQ1 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 OPA4197QPWRQ1 reliable?
The price and inventory of OPA4197QPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4197QPWRQ1 is usually 5 days.
3.What payment methods are accepted for OPA4197QPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4197QPWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4197QPWRQ1?
OPA4197QPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4197QPWRQ1 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 OPA4197QPWRQ1?
For technical support, including OPA4197QPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4197QPWRQ1 requirements.
6.How does Aetrix verify that OPA4197QPWRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA4197QPWRQ1 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 OPA4197QPWRQ1 meets industry standards.
7.What is the process for return or replacement of OPA4197QPWRQ1?
All OPA4197QPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA4197QPWRQ1, 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 OPA4197QPWRQ1 part is unused and in its original packaging.
Return procedure for OPA4197QPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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