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Texas Instruments OPA2992SIRUGR
- Part No.:
- OPA2992SIRUGR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-XFQFN
- Datasheet:
-
OPA2992SIRUGR.pdf
- Description:
- DUAL, 40V, 10.6MHZ, RAIL-TO-RAIL
- Quantity:
- Payment:
- Shipping:
Inventory:765
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Product details
Overview
OPA2992SIRUGR from Texas Instruments is a dual-channel, 40V rail-to-rail input/output precision operational amplifier with ±210 µV offset voltage, ±0.25 µV/°C drift, 7 nV/√Hz noise at 1 kHz, 10.6 MHz gain-bandwidth, and 32 V/µs slew rate-designed for high-side current sensing and ADC driver applications in industrial power systems.
For engineers reviewing the OPA2992SIRUGR datasheet, OPA2992SIRUGR pinout, OPA2992SIRUGR application, or OPA2992SIRUGR equivalent, this page delivers verified specifications, package-validated pin functions, real-world use cases in motor control and power delivery, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The OPA2992SIRUGR implements a dual-channel, fully differential-input op amp architecture with MUX-friendly inputs capable of operating with differential voltages up to the supply rails and common-mode range extending from V– to V+. Its robust 115 dB CMRR and 40 V supply capability support precision signal conditioning in noisy industrial environments.
Each channel features independent shutdown control (SHDN1/SHDN2), enabling dynamic power management without affecting the other amplifier. The device maintains rail-to-rail output swing down to 7 mV from rails under no-load conditions and sustains ±65 mA short-circuit current-critical for driving heavy loads or surviving fault transients in motor drive feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Dual independent amplifiers with separate shutdown pins (SHDN1, SHDN2) |
| Supply Voltage Range | 2.7 V to 40 V (±1.35 V to ±20 V); supports wide-input industrial power rails |
| Input Offset Voltage | ±0.21 mV typical (VCM = V–); enables sub-0.1% error in 12-bit+ current-sense designs |
| Gain-Bandwidth Product | 10.6 MHz; sufficient for stable closed-loop operation up to ~1 MHz with G ≥ 10 |
| Slew Rate | 32 V/µs; ensures <0.65 µs settling to 0.1% for 10 V step-critical for fast transient response |
| Quiescent Current | 2.4 mA per amplifier; balances performance and power in always-on monitoring circuits |
| Common-Mode Rejection | 115 dB at VS = 40 V; rejects supply noise in high-side shunt measurements |
Pinout & Package
The OPA2992SIRUGR is housed in a 10-pin X2QFN (RUG) package measuring 1.5 mm × 2.0 mm with an exposed thermal pad connected to V–.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V– | Negative supply terminal | Reference node for both amplifiers and thermal pad connection point; must be low-impedance ground path |
| SHDN1 | Channel 1 shutdown control | Active-high logic input; drives amplifier into 45 µA quiescent state when pulled ≥ (V–)+1.1 V |
| SHDN2 | Channel 2 shutdown control | Independent enable/disable control-allows asymmetric power gating in multi-stage signal chains |
| IN2+ | Noninverting input, channel 2 | Rail-to-rail input stage accepts signals from V– to V+; compatible with multiplexed sensor inputs |
| IN2– | Inverting input, channel 2 | Supports open-loop comparator use or precision differential amplification with matched layout |
| OUT2 | Output, channel 2 | Rail-to-rail output drives 10 kΩ loads to within 7 mV of rails; sinks/supplies ±65 mA short-circuit current |
| V+ | Positive supply terminal | Maximum 40 V rating enables direct interface with 36 V industrial bus rails |
| OUT1 | Output, channel 1 | Electrically isolated from OUT2; supports dual-path signal conditioning without crosstalk degradation |
| IN1– | Inverting input, channel 1 | Low 10 pA bias current minimizes error in high-impedance reference buffer configurations |
| IN1+ | Noninverting input, channel 1 | Valid common-mode range includes V– (explicitly specified in datasheet for VCM = V– condition) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-supply utilization in single-supply systems (e.g., 3.3 V or 24 V rails) without level-shifting circuitry |
| MUX-friendly/comparator inputs | Allows direct connection to analog multiplexers or use as high-precision comparator without external hysteresis |
| Low 7 nV/√Hz input voltage noise | Preserves SNR in low-level signal amplification (e.g., shunt-based current sensing below 100 mV) |
| High 115 dB common-mode rejection | Rejects bus noise in high-side current measurement where VCM ≈ VBUS (e.g., 40 V motor phase) |
| Independent dual-channel shutdown | Reduces system power by >99% per channel during idle periods while retaining configuration state |
Applications
| High-Side Current Sensing | ADC Driver for Precision Data Acquisition |
|---|---|
Use Scenario: Monitoring motor phase current in 40 V industrial servo drives using a high-side shunt resistor. IC Role / Device Role / Timing Role: Precision difference amplifier converting mV-level shunt voltage to ratiometric output referenced to system ground. Use Value: ±210 µV offset and 115 dB CMRR ensure <0.05% gain error at 40 V common-mode, eliminating need for calibration in production. | Use Scenario: Driving SAR ADC inputs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-noise, fast-settling buffer isolating ADC front-end from multiplexed sensor sources. Use Value: 0.65 µs 0.1% settling time and 7 nV/√Hz noise preserve 16-bit ENOB across 100 kSPS sampling rates. |
| Power Stage Control in UPS Systems | Reference Buffer for High-Voltage DACs |
Use Scenario: Generating precise gate-drive bias offsets in 36 V DC-link UPS inverters. IC Role / Device Role / Timing Role: Rail-to-rail output amplifier providing stable, low-drift reference to PWM modulator comparators. Use Value: ±0.25 µV/°C drift and 2.4 mA quiescent current maintain <1 LSB error over –40°C to 125°C ambient without active heating. | Use Scenario: Buffering 16-bit DAC outputs in server power delivery controllers requiring 0–30 V programmable voltage rails. IC Role / Device Role / Timing Role: Unity-gain stable follower delivering low-impedance, high-PSRR reference to switching regulator error amplifiers. Use Value: 142 dB open-loop gain and 40 V supply headroom ensure <1 ppm gain error and immunity to 30 V rail transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2189IDR | Lower 5.6 nV/√Hz noise, but only 2.2 MHz GBW and 10.5 V/µs slew rate; no shutdown pins | Better for ultra-low-noise DC-coupled sensors; unsuitable for fast-settling ADC drivers or MUX interfaces | Select OPA2189IDR only when noise dominates bandwidth requirements and shutdown is unnecessary |
| AD8638ARZ-REEL7 | Higher 1.25 µV max offset, 1.5 µV/°C drift, and 12 V/µs slew rate; SOIC-8 package only | Acceptable for cost-sensitive industrial controls where 12-bit accuracy suffices and board space allows larger footprint | Choose AD8638ARZ-REEL7 when legacy SOIC layout compatibility and lower unit cost outweigh precision and speed needs |
Compared with OPA2189IDR and AD8638ARZ-REEL7, the OPA2992SIRUGR uniquely combines 40 V operation, dual independent shutdown, 10.6 MHz bandwidth, and rail-to-rail I/O in a 1.5 mm × 2.0 mm X2QFN-making it the only option for space-constrained, high-voltage, low-power industrial signal chains requiring both precision and configurability.
Availability
OPA2992SIRUGR is available at Aetrix Electronics and suitable for high-side current sensing, ADC driver, and power stage control applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for OPA2992SIRUGR 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 decades of expertise in high-reliability industrial and automotive signal conditioning solutions.
The OPAx992 family was designed specifically for high-voltage industrial applications demanding precision, robustness, and rail-to-rail performance-including motor drives, power supplies, and programmable I/O modules operating from 2.7 V to 40 V rails.
FAQ
What is the maximum supply voltage rating for the OPA2992SIRUGR?
The OPA2992SIRUGR supports a maximum supply voltage of 40 V (V+ to V–), with absolute maximum ratings permitting up to 42 V. This 40 V rating is validated across the full –40°C to 125°C operating temperature range and enables direct integration into 36 V industrial bus systems without external regulation. The OPA2992SIRUGR maintains rail-to-rail input/output functionality across this entire supply range.
Does the OPA2992SIRUGR support true rail-to-rail input when VCM equals V–?
Yes-the OPA2992SIRUGR explicitly specifies rail-to-rail input operation with VCM = V– in its electrical characteristics table (Section 5.7). Input common-mode range extends from V– to V+, and the device maintains ±210 µV offset voltage and full AC performance under this condition. This capability is essential for high-side current sensing where the inverting input is tied to VBUS and the noninverting input references V–.
How does the shutdown feature of the OPA2992SIRUGR operate?
The OPA2992SIRUGR provides independent shutdown control via SHDN1 and SHDN2 pins. Each pin is active-high: pulling ≥ (V–)+1.1 V disables the corresponding amplifier, reducing its quiescent current to 45 µA. Pulling ≤ (V–)+0.2 V enables operation at 2.4 mA per channel. The OPA2992SIRUGR datasheet confirms 5 µs enable time and 3 µs disable time under ±20 V supply conditions.
Can the OPA2992SIRUGR be used as a comparator?
Yes-the OPA2992SIRUGR is explicitly characterized for open-loop comparator use due to its MUX-friendly inputs, rail-to-rail output, and absence of phase reversal. Its 32 V/µs slew rate and 170 ns overload recovery time support fast edge detection. However, it lacks built-in hysteresis; external positive feedback is required for noise-immune threshold detection. The OPA2992SIRUGR's low input bias current (±10 pA) minimizes threshold error in high-impedance sensing nodes.
What thermal considerations apply to the OPA2992SIRUGR in the RUG package?
The OPA2992SIRUGR in the 10-pin X2QFN (RUG) package has a junction-to-board thermal resistance (RθJB) of 62.0°C/W and junction-to-ambient (RθJA) of 131.7°C/W. TI recommends connecting the exposed thermal pad directly to a solid V– plane for optimal heat dissipation. Under worst-case 40 V supply and full output swing, power dissipation remains below 200 mW per channel-ensuring safe operation without forced airflow when PCB copper area meets minimum layout guidelines.
OPA2992SIRUGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 2
- Output Type:
- Single Ended, Rail-to-Rail
- Slew Rate:
- 32V/µs
- Gain Bandwidth Product:
- 10.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 210 µV
- Current - Supply:
- 2.4mA (x2 Channels)
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-X2QFN (2x1.5)
OPA2992SIRUGR FAQ
1.How can I place an order for OPA2992SIRUGR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2992SIRUGR 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 OPA2992SIRUGR reliable?
The price and inventory of OPA2992SIRUGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2992SIRUGR is usually 5 days.
3.What payment methods are accepted for OPA2992SIRUGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2992SIRUGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2992SIRUGR?
OPA2992SIRUGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2992SIRUGR 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 OPA2992SIRUGR?
For technical support, including OPA2992SIRUGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2992SIRUGR requirements.
6.How does Aetrix verify that OPA2992SIRUGR is sourced from the original manufacturer or authorized distributors?
All OPA2992SIRUGR 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 OPA2992SIRUGR meets industry standards.
7.What is the process for return or replacement of OPA2992SIRUGR?
All OPA2992SIRUGR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2992SIRUGR, 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 OPA2992SIRUGR part is unused and in its original packaging.
Return procedure for OPA2992SIRUGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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