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Texas Instruments OPA2990TIDDFR
- Part No.:
- OPA2990TIDDFR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
OPA2990TIDDFR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:1,456
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Product details
Overview
OPA2990TIDDFR from Texas Instruments is a dual-channel, 40-V rail-to-rail input/output operational amplifier with ±300 µV max offset voltage, ±0.6 µV/°C drift, 1.1-MHz gain-bandwidth, and 120 µA per amplifier quiescent current. It operates from ±1.35 V to ±20 V or 2.7 V to 40 V and supports high-precision current sensing and ADC driver functions in industrial power modules.
For engineers reviewing the OPA2990TIDDFR datasheet, OPA2990TIDDFR pinout, OPA2990TIDDFR application, or OPA2990TIDDFR equivalent, this page delivers verified specifications, SOIC-8 package mapping, dual-channel functional context, and validated alternative op amps for high-voltage precision signal conditioning.
Technical Context
The OPA2990TIDDFR implements a complementary input stage enabling rail-to-rail common-mode range (V– – 0.2 V to V+ + 0.2 V) and differential input operation up to supply rails. Its architecture supports open-loop comparator use and MUX-friendly inputs without phase reversal.
It features 115 dB CMRR at 40 V supply, 4.5 V/µs slew rate, and robust 78 dB EMIRR at 1.8 GHz-enabling stable performance in noisy motor drive and power delivery environments where EMI immunity and DC precision are co-critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 40 V (or ±1.35 V to ±20 V): supports single-supply industrial sensors and dual-supply test equipment without level-shifting. |
| Input Offset Voltage | ±0.3 mV (max): enables sub-0.1% error in 3.3-V reference buffers and high-side current shunt amplifiers. |
| Gain-Bandwidth Product | 1.1 MHz: sufficient for anti-aliasing filtering before 1-MSPS SAR ADCs with ≤10× gain. |
| Slew Rate | 4.5 V/µs: ensures <5 µs settling to 0.1% for 10-V step signals-critical for fast transient response in UPS control loops. |
| Quiescent Current | 120 µA per amplifier: allows dual-channel precision amplification in battery-backed PLC I/O modules with <250 µA total bias. |
| Common-Mode Input Range | V– – 0.2 V to V+ + 0.2 V: permits direct connection to high-side current sense nodes at 36-V bus without attenuation. |
| Output Swing | Within 2 mV of rails (no load, 40 V): delivers full dynamic range to low-voltage ADCs while maintaining linearity near supply limits. |
Pinout & Package
OPA2990TIDDFR is packaged in an 8-pin SOIC (D package), 4.90 mm × 3.90 mm body size, with exposed pad not present. Thermal resistance RθJA = 138.7°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Channel 1 output; drives loads up to ±80 mA short-circuit current with rail-to-rail swing. |
| 2 | IN1– | Inverting input, channel 1; accepts common-mode voltages down to V– – 0.2 V for high-side sensing. |
| 3 | IN1+ | Noninverting input, channel 1; MUX-compatible-operates linearly with differential inputs up to supply rails. |
| 4 | V– | Negative supply rail; reference for all internal biasing and must be connected to system ground or negative rail. |
| 5 | IN2+ | Noninverting input, channel 2; electrically isolated from channel 1-supports independent signal paths in analog I/O modules. |
| 6 | IN2– | Inverting input, channel 2; matched offset and drift with IN1± enables precise differential measurements across both channels. |
| 7 | OUT2 | Channel 2 output; identical AC/DC specs to OUT1-allows simultaneous buffering of two sensor outputs or reference voltages. |
| 8 | V+ | Positive supply rail; supports up to 40 V-enables direct interface with 36-V industrial buses without external regulators. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal acquisition from 0 V to 40 V systems without external level-shifting circuitry. |
| MUX-friendly/comparator inputs | Allows use in multiplexed data-acquisition front-ends and open-loop threshold detection without external hysteresis. |
| Low offset drift (±0.6 µV/°C) | Reduces temperature-induced gain error to <0.002% over –40°C to 125°C-critical for uncalibrated field-deployed sensors. |
| High EMIRR (78 dB @ 1.8 GHz) | Suppresses RF rectification in motor drive feedback paths, preventing false triggering in PWM-rich environments. |
| Wide bandwidth (1.1 MHz GBW) | Supports closed-loop gain ≥10 with >100 kHz small-signal bandwidth-sufficient for servo position loop compensation. |
Applications
| Multiplexed Data-Acquisition System | Motor Drive Power Stage Monitoring |
|---|---|
Use Scenario: 16-channel industrial DAQ with shared ADC and analog multiplexer switching between thermocouples, RTDs, and current shunts. IC Role / Device Role / Timing Role: Dual-channel OPA2990TIDDFR buffers and conditions two simultaneous sensor inputs-channel 1 for shunt-based current, channel 2 for thermocouple cold-junction compensation. Use Value: Rail-to-rail input allows direct connection to ±10-V sensor outputs; low 30 nV/√Hz noise preserves SNR in 24-bit delta-sigma conversions. |
Use Scenario: Real-time monitoring of high-side IGBT gate drive voltage and phase current in 3-phase inverter. IC Role / Device Role / Timing Role: OPA2990TIDDFR channel 1 acts as high-voltage level translator for gate drive feedback; channel 2 serves as current-sense amplifier with V– referenced to 36-V bus. Use Value: Common-mode range to V+ + 0.2 V eliminates need for resistive dividers; 4.5 V/µs slew rate captures fast switching transients without distortion. |
| Programmable Logic Controller Analog Input Module | Server PSU Reference Buffer |
Use Scenario: 8-channel isolated analog input card accepting 0–20 mA, ±10 V, and thermocouple inputs with software-configurable gain. IC Role / Device Role / Timing Role: OPA2990TIDDFR provides unity-gain buffering and anti-aliasing pre-filtering ahead of programmable gain instrumentation amplifier stages. Use Value: ±300 µV offset ensures <0.003% full-scale error at 10-V range; 115 dB CMRR rejects common-mode noise from shared 24-V PLC backplane. |
Use Scenario: Precision 1.25-V reference buffer for digital PWM controller in 48-V server power supply. IC Role / Device Role / Timing Role: OPA2990TIDDFR channel 1 buffers REF3140 output; channel 2 drives remote sense line with low output impedance. Use Value: 2-mV rail headroom at 40-V supply ensures full 1.25-V reference delivery under load; 120 µA IQ minimizes standby power in always-on control ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2182IDR | Lower offset (±4 µV), higher IQ (560 µA), 10-MHz GBW, no rail-to-rail input | Better DC accuracy but limited to ≤24-V supplies and requires input biasing for high-side sensing | Select when ultra-low offset dominates over supply range and power budget; avoid for 36-V bus monitoring. |
| LM358BDR | Higher offset (±2 mV), lower GBW (1 MHz), rail-to-rail output only, 700 µA IQ | Cost-optimized general-purpose use; lacks rail-to-rail input and EMIRR robustness | Select for non-critical 5–12-V applications where 0.02% error is acceptable and EMI immunity is not required. |
Compared with OPA2182IDR and LM358BDR, the OPA2990TIDDFR uniquely balances 40-V operation, rail-to-rail input, low offset, and low power-making it the only option among the three suitable for unattenuated high-side current sensing in 36-V industrial power systems.
Availability
OPA2990TIDDFR is available at Aetrix Electronics and suitable for motor drive control modules, programmable logic controller analog input cards, and server power supply reference buffering requiring stable component supply across extended temperature and voltage ranges.
Supply support for OPA2990TIDDFR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The OPAx990 family was designed specifically for high-voltage industrial signal conditioning-emphasizing rail-to-rail operation, low drift, and EMI-hardened performance in noisy factory-floor and power-conversion environments.
FAQ
What is the maximum supply voltage rating for OPA2990TIDDFR?
The OPA2990TIDDFR has an absolute maximum supply voltage of 42 V (V+ – V–), with recommended operating range from 2.7 V to 40 V. This allows direct integration into 36-V industrial bus systems while maintaining margin against transients. Operation beyond 40 V risks permanent damage and invalidates parametric guarantees specified in the datasheet.
Does OPA2990TIDDFR support rail-to-rail input at 40-V supply?
Yes, OPA2990TIDDFR supports rail-to-rail input with common-mode range from V– – 0.2 V to V+ + 0.2 V across its full 2.7–40-V supply range. At 40-V operation, this means inputs can swing from –0.2 V to +40.2 V-enabling direct connection to high-side current shunts without attenuation networks.
What is the typical input offset voltage drift of OPA2990TIDDFR over temperature?
The OPA2990TIDDFR has a typical input offset voltage drift of ±0.6 µV/°C over –40°C to +125°C. This low drift ensures minimal gain error accumulation in uncalibrated systems-e.g., adding only ±0.12 mV offset shift across a 200°C span, critical for long-term stability in field-deployed instrumentation.
Can OPA2990TIDDFR be used as a comparator?
Yes, OPA2990TIDDFR is explicitly designed for open-loop comparator use due to MUX-friendly inputs and absence of phase reversal. Its differential input can accept signals up to the supply rails, and it operates reliably without external hysteresis-though external hysteresis is recommended for noise immunity in real-world applications.
What package type does OPA2990TIDDFR use, and what are its thermal characteristics?
OPA2990TIDDFR uses the SOIC-8 (D) package, 4.90 mm × 3.90 mm, with junction-to-ambient thermal resistance (RθJA) of 138.7°C/W. This package supports standard reflow profiles and provides adequate thermal performance for ≤300-mW dissipation in ambient temperatures up to 85°C without forced airflow.
OPA2990TIDDFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4.5V/µs
- Gain Bandwidth Product:
- 1.1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 120µA (x2 Channels)
- Current - Output / Channel:
- 80 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:
- TSOT-23-8
OPA2990TIDDFR FAQ
1.How can I place an order for OPA2990TIDDFR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2990TIDDFR 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 OPA2990TIDDFR reliable?
The price and inventory of OPA2990TIDDFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2990TIDDFR is usually 5 days.
3.What payment methods are accepted for OPA2990TIDDFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2990TIDDFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2990TIDDFR?
OPA2990TIDDFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2990TIDDFR 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 OPA2990TIDDFR?
For technical support, including OPA2990TIDDFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2990TIDDFR requirements.
6.How does Aetrix verify that OPA2990TIDDFR is sourced from the original manufacturer or authorized distributors?
All OPA2990TIDDFR 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 OPA2990TIDDFR meets industry standards.
7.What is the process for return or replacement of OPA2990TIDDFR?
All OPA2990TIDDFR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2990TIDDFR, 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 OPA2990TIDDFR part is unused and in its original packaging.
Return procedure for OPA2990TIDDFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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