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Texas Instruments OPA2992IDGKR
- Part No.:
- OPA2992IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2992IDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,544
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Product details
Overview
OPA2992IDGKR 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, and 7 nV/√Hz noise at 1 kHz. It delivers 10.6 MHz gain-bandwidth, 32 V/µs slew rate, and operates from ±1.35 V to ±20 V (or 2.7 V to 40 V), serving as an ADC driver, current-sense amplifier, or high-precision comparator in industrial power systems.
For engineers reviewing the OPA2992IDGKR datasheet, OPA2992IDGKR pinout, OPA2992IDGKR application, or OPA2992IDGKR equivalent, key selection criteria include its 115 dB CMRR, MUX-friendly inputs enabling open-loop comparator use, low quiescent current (2.4 mA per amplifier), robust 40 V supply range, and thermal performance in SOIC-8 packaging for motor control and power delivery designs.
Technical Context
The OPA2992IDGKR implements a high-voltage complementary input stage supporting rail-to-rail common-mode input (V– to V+) and output swing within 7 mV of rails at no load. Its architecture enables stable unity-gain operation with 64° phase margin into 20 pF loads and supports differential input voltages up to the full supply rail without phase reversal.
It features dual independent amplifiers sharing a single V+ and V– supply pair, with separate noninverting (IN1+, IN2+) and inverting (IN1–, IN2–) inputs per channel. The device maintains low bias current (±10 pA) and high open-loop gain (142 dB typical) across –40°C to +125°C, making it suitable for precision analog signal conditioning in harsh industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 40 V (or ±1.35 V to ±20 V): Enables direct interface with 24 V and 36 V industrial buses without level-shifting. |
| Input Offset Voltage | ±0.21 mV (typ): Ensures <±1 LSB error in 12-bit systems with 4.096 V reference when used as sensor amplifier. |
| Gain-Bandwidth Product | 10.6 MHz: Supports stable closed-loop gain ≥10 up to ~1 MHz, sufficient for anti-aliasing and fast-settling ADC drivers. |
| Slew Rate | 32 V/µs: Allows full-scale 10 V step response in ≤0.31 µs, critical for pulse-width modulation feedback loops. |
| Common-Mode Rejection | 115 dB (typ): Rejects >3 million:1 common-mode interference-essential for accurate high-side current sensing. |
| Quiescent Current | 2.4 mA per amplifier: Enables dual-channel precision amplification while staying under 5 mA total in space-constrained 40 V systems. |
| Output Short-Circuit Current | ±65 mA: Drives heavy capacitive or resistive loads directly, reducing need for external buffers in motor gate-drive circuits. |
Pinout & Package
OPA2992IDGKR is housed in an 8-pin SOIC (D) package (4.9 mm × 6.0 mm), rated for operation from –40°C to +125°C. Thermal resistance RθJA is 131.0°C/W, requiring minimal heatsinking in standard PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output, Channel 1 | Low-impedance buffered output capable of sourcing/sinking ±65 mA; rail-to-rail swing minimizes headroom loss. |
| 2 (IN1–) | Inverting Input, Channel 1 | Differential input node accepting signals up to supply rails; supports comparator mode with hysteresis via feedback. |
| 3 (IN1+) | Noninverting Input, Channel 1 | High-impedance (6 TΩ || 1 pF) input for precision voltage sensing; immune to leakage-induced errors. |
| 4 (V–) | Negative Power Supply | Reference for both channels; must be connected to system ground or negative rail; thermal pad (if present) ties here. |
| 5 (IN2+) | Noninverting Input, Channel 2 | Independent high-Z input identical to IN1+; enables dual-path signal conditioning without crosstalk degradation. |
| 6 (IN2–) | Inverting Input, Channel 2 | Matches IN1– functionality; allows simultaneous high-side and low-side current sensing on same IC. |
| 7 (OUT2) | Output, Channel 2 | Fully independent output; supports split-domain buffering (e.g., one channel for sensing, one for actuation). |
| 8 (V+) | Positive Power Supply | Highest potential rail; supplies both amplifiers; accepts up to 40 V, enabling direct connection to unregulated industrial rails. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 40 V supply range-no lost dynamic range when interfacing with 0–40 V sensors or actuators. |
| MUX-friendly/comparator inputs | Accepts differential inputs beyond supply rails; permits open-loop use as high-speed comparator without external clamping diodes. |
| Low noise: 7 nV/√Hz @ 1 kHz | Preserves SNR in 16-bit+ data acquisition systems; outperforms legacy 40 V op amps by >3× in broadband noise density. |
| High slew rate: 32 V/µs | Supports >1 MHz closed-loop bandwidth with minimal distortion in servo control loops and PWM feedback paths. |
| Robust EMIRR performance | Rejects RF interference up to 2.5 GHz without external filtering-critical for motor drives operating near switching inverters. |
| Wide temperature range: –40°C to +125°C | Qualified for under-hood automotive and industrial power module applications without derating or external thermal management. |
Applications
| High-Side Current Sensing | ADC Driver for Precision DAQ |
|---|---|
|
Use Scenario: Monitoring battery pack or DC bus current in UPS and server power supplies using shunt resistor placed between source and load. IC Role / Device Role / Timing Role: Amplifies small differential voltage across shunt with minimal offset drift, feeding isolated ADC input. Use Value: ±210 µV offset and ±0.25 µV/°C drift ensure <±0.5% full-scale error over –40°C to +125°C without calibration. |
Use Scenario: Driving SAR or sigma-delta ADC inputs in programmable logic controllers and analog I/O modules. IC Role / Device Role / Timing Role: Provides low-noise, fast-settling buffer with 0.65 µs to 0.1% for 10 V steps-matching high-speed ADC aperture times. Use Value: 7 nV/√Hz noise and 10.6 MHz GBW preserve ENOB in 16-bit, 1 MSPS systems without gain error from bandwidth limitation. |
| Motor Drive Control Loop | Programmable Analog Output Module |
|
Use Scenario: Closed-loop torque and speed regulation in BLDC and PMSM inverters, where current feedback must survive EMI-rich environments. IC Role / Device Role / Timing Role: Senses phase currents and conditions signals for controller ADC; withstands 2.5 GHz RF fields per EMIRR spec. Use Value: 115 dB CMRR rejects common-mode noise from PWM switching edges; 32 V/µs slew rate tracks fast current transients. |
Use Scenario: Generating precise 0–10 V or 4–20 mA outputs in industrial automation modules with microcontroller-based DACs. IC Role / Device Role / Timing Role: Buffers low-drive DAC output while maintaining rail-to-rail swing and low THD+N (0.00005% at 1 kHz). Use Value: 2.4 mA quiescent current per channel enables dual-output design within 5 mA total budget; 40 V supply supports 24 V loop-powered systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2182IDR | Lower offset (±4 µV), lower noise (5.7 nV/√Hz), but max supply 36 V; SOIC-8, same pinout. | Better for ultra-precision lab equipment; not rated for 40 V industrial rails or 125°C operation. | Select OPA2182IDR only if supply stays ≤36 V and ambient ≤105°C; otherwise OPA2992IDGKR provides wider voltage/temp margin. |
| AD8638ARZ-REEL7 | Higher offset (±500 µV), lower GBW (1.2 MHz), 36 V max supply; SOIC-8, different pinout (non-compatible). | Suitable for cost-sensitive, lower-performance industrial controls; lacks MUX-friendly inputs and comparator capability. | Choose AD8638ARZ-REEL7 only for non-critical sensing where 12-bit accuracy suffices and layout changes are acceptable. |
Compared with OPA2182IDR and AD8638ARZ-REEL7, the OPA2992IDGKR uniquely combines 40 V operation, 125°C rating, rail-to-rail MUX-compatibility, and sub-µV/°C drift-making it the only option qualified for high-reliability, wide-supply industrial current sensing and control loops.
Availability
OPA2992IDGKR is available at Aetrix Electronics and suitable for high-side current sensing, precision ADC driving, motor drive control loops, and programmable analog output modules requiring stable component supply across extended temperature and voltage ranges.
Supply support for OPA2992IDGKR 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 chain solutions.
The OPAx992 family was designed specifically for high-voltage industrial applications-including motor drives, power delivery, and precision sensing-where rail-to-rail operation, low drift, and robust EMI immunity are mandatory.
FAQ
What is the maximum supply voltage for OPA2992IDGKR?
The OPA2992IDGKR supports a maximum supply voltage of 40 V across V+ and V– pins, with absolute maximum ratings extending to 42 V. This allows direct integration into 24 V and 36 V industrial power rails without external regulators or voltage dividers, simplifying system architecture while maintaining full rail-to-rail input/output performance.
Does OPA2992IDGKR support true rail-to-rail input operation?
Yes, the OPA2992IDGKR supports rail-to-rail input operation with common-mode voltage range from V– to V+, verified across its full –40°C to +125°C temperature range. This enables accurate amplification of signals near supply rails-critical for high-side current sensing and single-supply sensor interfaces where traditional op amps would clip or distort.
Can OPA2992IDGKR be used as a comparator?
Yes, the OPA2992IDGKR is explicitly designed for open-loop comparator use due to its MUX-friendly inputs, which tolerate differential inputs up to the supply rails without damage or phase reversal. Its 32 V/µs slew rate and 10.6 MHz GBW enable fast response in overcurrent detection and threshold monitoring circuits without requiring external hysteresis components.
What is the thermal performance of OPA2992IDGKR in SOIC-8 package?
The OPA2992IDGKR in SOIC-8 (DGKR) package has a junction-to-ambient thermal resistance (RθJA) of 131.0°C/W. At 4.8 mA total quiescent current (2.4 mA per amplifier) and 40 V supply, power dissipation remains below 200 mW-keeping junction temperature well within limits even at +125°C ambient, provided standard 2-oz copper PCB layout guidelines are followed.
How does OPA2992IDGKR handle electromagnetic interference?
The OPA2992IDGKR features robust EMIRR (Electromagnetic Interference Rejection Ratio) performance, rejecting RF interference up to 2.5 GHz without external filtering. This is validated per industry-standard test methods and ensures reliable operation in noisy environments such as motor drives, switch-mode power supplies, and industrial communication gateways where conducted and radiated emissions are severe.
OPA2992IDGKR 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:
- 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:
- 8-VSSOP
OPA2992IDGKR FAQ
1.How can I place an order for OPA2992IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2992IDGKR 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 OPA2992IDGKR reliable?
The price and inventory of OPA2992IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2992IDGKR is usually 5 days.
3.What payment methods are accepted for OPA2992IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2992IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2992IDGKR?
OPA2992IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2992IDGKR 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 OPA2992IDGKR?
For technical support, including OPA2992IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2992IDGKR requirements.
6.How does Aetrix verify that OPA2992IDGKR is sourced from the original manufacturer or authorized distributors?
All OPA2992IDGKR 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 OPA2992IDGKR meets industry standards.
7.What is the process for return or replacement of OPA2992IDGKR?
All OPA2992IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2992IDGKR, 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 OPA2992IDGKR part is unused and in its original packaging.
Return procedure for OPA2992IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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