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Texas Instruments OPA992IDCKR
- Part No.:
- OPA992IDCKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
OPA992IDCKR.pdf
- Description:
- 40-V, SINGLE 10-MHZ, RAIL-TO-RAI
- Quantity:
- Payment:
- Shipping:
Inventory:3,037
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Product details
Overview
OPA992IDCKR from Texas Instruments is a single-channel, 40V rail-to-rail input/output precision operational amplifier optimized for high-voltage industrial signal conditioning. It delivers ±210 µV offset voltage, 10.6 MHz gain-bandwidth, 32 V/µs slew rate, and 7 nV/√Hz noise at 1 kHz - enabling accurate current sensing, ADC driving, and multiplexed data acquisition in systems operating from ±1.35 V to ±20 V.
For engineers reviewing the OPA992IDCKR datasheet, OPA992IDCKR pinout, OPA992IDCKR application, or OPA992IDCKR equivalent, key selection criteria include its MUX-friendly input stage (supports differential inputs up to supply rails), robust EMIRR performance, low quiescent current (2.4 mA), and operation across –40°C to 125°C - critical for motor control, power delivery, and programmable logic controller designs.
Technical Context
The OPA992IDCKR implements a dual-input-stage architecture with PMOS and NMOS input pairs, enabling rail-to-rail common-mode input range from V– to V+. Its unity-gain stable design supports high-speed closed-loop configurations without external compensation, while the MUX-friendly input allows direct use in open-loop comparator applications without latch-up risk.
It features ±65 mA short-circuit output current, 115 dB CMRR at 40 V supply, and 126 dB THD+N at 1 kHz - confirming suitability for precision analog front-ends where DC accuracy, AC fidelity, and supply flexibility are simultaneously required in high-voltage industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 40 V (±1.35 V to ±20 V): supports wide industrial bus voltages including 24 V, 36 V, and 48 V systems. |
| Input Offset Voltage | ±0.21 mV typical: enables sub-0.1% error in 100 mV full-scale current-sense applications without trimming. |
| Gain-Bandwidth Product | 10.6 MHz: sufficient for stable 10× gain at >1 MHz or unity-gain buffering of fast ADC reference signals. |
| Slew Rate | 32 V/µs: ensures <0.65 µs settling to 0.1% for 10 V step, critical for dynamic sensor signal capture. |
| Input Voltage Noise | 7 nV/√Hz @ 1 kHz: maintains SNR >100 dB in 20 kHz bandwidth sensor interfaces. |
| Common-Mode Rejection | 115 dB @ VS = 40 V: rejects >100 µV of supply ripple on high-side current sense inputs. |
| Quiescent Current | 2.48 mA per amplifier: balances speed and power in always-on industrial monitoring nodes. |
Pinout & Package
OPA992IDCKR is housed in a 5-pin SC70 (DCK) package measuring 2.0 mm × 2.1 mm, optimized for space-constrained industrial PCBs and thermally efficient layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Noninverting input | Accepts signals from V– to V+; supports MUX switching and comparator operation without phase reversal. |
| 2 (V–) | Negative supply | Reference for internal biasing; must be connected to lowest system potential (e.g., ground or negative rail). |
| 3 (IN–) | Inverting input | Differential input node; operates up to supply rails - eliminates need for level-shifting in high-side sensing. |
| 4 (OUT) | Output | Rail-to-rail swing (≤7 mV headroom at no load); drives 10 kΩ loads with <0.1% settling in 0.65 µs. |
| 5 (V+) | Positive supply | Highest system voltage (up to +40 V); supplies internal amplification stages and output driver. |
Key Features
| Feature | Design Value |
|---|---|
| MUX-friendly inputs | Operates with differential inputs up to supply rails - eliminates external clamping diodes in multiplexed sensor arrays. |
| Rail-to-rail I/O | Full dynamic range utilization from V– to V+ at both input and output - maximizes ADC resolution in unipolar/bipolar systems. |
| Low offset drift | ±0.25 µV/°C typical - reduces thermal-induced error to <0.3 µV over 0°C–70°C ambient range. |
| High EMIRR performance | Robust immunity to RF interference in noisy motor drive and power converter environments. |
| Unity-gain stable | No external compensation required - simplifies layout and improves reliability in high-frequency feedback paths. |
Applications
| High-Side Current Sensing | ADC Driver and Reference Buffer |
|---|---|
Use Scenario: Monitoring phase current in 48 V motor inverters using shunt resistor between high-side switch and bus. IC Role / Device Role / Timing Role: Precision difference amplifier converting mV-level shunt voltage to clean, rail-to-rail output for isolated ADC input. Use Value: ±210 µV offset ensures <0.5% gain error at 100 A full scale; 32 V/µs slew rate captures PWM-edge transients without distortion. | Use Scenario: Driving SAR ADC inputs and buffering precision voltage references in test equipment. IC Role / Device Role / Timing Role: Low-noise, low-distortion buffer isolating reference from ADC switching currents and driving capacitive loads. Use Value: 7 nV/√Hz noise preserves ENOB in 16-bit ADCs; 10.6 MHz GBW ensures stable 100 kHz settling with 100 pF load. |
| Multiplexed Data-Acquisition Systems | Programmable Logic Controllers (PLCs) |
Use Scenario: Signal conditioning for 16-channel analog input modules switching between thermocouples, RTDs, and 4–20 mA loops. IC Role / Device Role / Timing Role: Channel-specific gain/offset stage with rail-to-rail input accommodating varying sensor common-mode ranges. Use Value: MUX-friendly inputs tolerate ±0.5 V beyond rails without damage; 115 dB CMRR rejects crosstalk between adjacent channels. | Use Scenario: Analog I/O conditioning in modular PLC backplanes handling 24 V field signals and isolated sensors. IC Role / Device Role / Timing Role: High-voltage interface amplifier for current loop receivers, voltage monitors, and actuator drivers. Use Value: 40 V max supply supports direct connection to 24 V industrial buses; –40°C to 125°C rating ensures operation in cabinet-mounted controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2182IDBVR | Lower offset (±4 µV), lower noise (5.7 nV/√Hz), but 36 V max supply and higher IQ (700 µA). | Better for ultra-precision DC measurements; less suitable for 40 V bus monitoring or high-speed settling. | Choose OPA2182IDBVR only when sub-10 µV offset dominates requirements and supply stays ≤36 V. |
| OPA192IDBVR | Same 40 V rating and SC70 package, but higher offset (±500 µV), lower GBW (10 MHz), and no MUX-friendly input stage. | Limited in multiplexed or comparator-mode use; acceptable for general-purpose 40 V signal conditioning where speed is secondary. | OPA192IDBVR offers cost advantage where OPA992IDCKR's low offset and rail-rail input are not required. |
Compared with OPA2182IDBVR and OPA192IDBVR, the OPA992IDCKR uniquely combines 40 V operation, ±210 µV offset, MUX-compatible inputs, and 10.6 MHz bandwidth - making it optimal for high-voltage, high-speed, multi-channel industrial analog front-ends where precision and flexibility are co-required.
Availability
OPA992IDCKR is available at Aetrix Electronics and suitable for high-side current sensing, ADC driver, multiplexed data-acquisition, and programmable logic controller applications requiring stable component supply across extended temperature and voltage ranges.
Supply support for OPA992IDCKR 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 precision amplifiers and industrial-grade ICs.
The OPAx992 product line was designed specifically for high-voltage industrial signal conditioning - targeting motor drives, power delivery systems, and programmable automation controllers where rail-to-rail operation, low drift, and robustness are mandatory.
FAQ
What is the maximum supply voltage for OPA992IDCKR?
The OPA992IDCKR supports a maximum supply voltage of 40 V (V+ to V–), with absolute maximum ratings extending to 42 V. This allows direct integration into 24 V and 36 V industrial power rails without external regulation, while maintaining full rail-to-rail input/output functionality across the entire operating range.
Does OPA992IDCKR support true rail-to-rail input operation?
Yes, the OPA992IDCKR supports true rail-to-rail input operation - its input common-mode range extends from V– to V+, enabled by complementary PMOS/NMOS input stages. This eliminates level-shifting circuitry in high-side current sensing and multiplexed sensor interfaces, and allows safe operation even when inputs exceed supply rails by up to 0.5 V (with current limiting).
Can OPA992IDCKR be used as a comparator?
Yes, the OPA992IDCKR is explicitly designed for open-loop comparator use due to its MUX-friendly inputs and absence of phase reversal. Its inputs operate up to the supply rails, and the amplifier remains stable without latch-up - enabling direct replacement of discrete comparators in applications like overcurrent detection and threshold monitoring, though propagation delay is not specified.
What is the thermal performance of OPA992IDCKR in the SC70 package?
In the DCK (SC70) package, the OPA992IDCKR has a junction-to-ambient thermal resistance (RθJA) of 198.1°C/W and a junction-to-board resistance (RθJB) of 45.3°C/W. This indicates strong heat conduction through the PCB, especially with proper copper pour under the exposed pad - essential for sustained 2.4 mA operation in compact industrial enclosures at 125°C ambient.
How does OPA992IDCKR handle capacitive loads?
The OPA992IDCKR is unity-gain stable and can drive up to 200 pF with ≥64° phase margin (per datasheet Figure 5-33). For heavier loads, a small series isolation resistor (e.g., 50 Ω) restores stability - a common practice in ADC driver and cable-driving applications where capacitance exceeds 100 pF.
OPA992IDCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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:
- 2.48mA (x4 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:
- SC-70-5
OPA992IDCKR FAQ
1.How can I place an order for OPA992IDCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA992IDCKR 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 OPA992IDCKR reliable?
The price and inventory of OPA992IDCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA992IDCKR is usually 5 days.
3.What payment methods are accepted for OPA992IDCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA992IDCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA992IDCKR?
OPA992IDCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA992IDCKR 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 OPA992IDCKR?
For technical support, including OPA992IDCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA992IDCKR requirements.
6.How does Aetrix verify that OPA992IDCKR is sourced from the original manufacturer or authorized distributors?
All OPA992IDCKR 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 OPA992IDCKR meets industry standards.
7.What is the process for return or replacement of OPA992IDCKR?
All OPA992IDCKR units undergo pre-shipment inspection (PSI). If there is an issue with OPA992IDCKR, 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 OPA992IDCKR part is unused and in its original packaging.
Return procedure for OPA992IDCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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