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Texas Instruments OPA2990IDSGR
- Part No.:
- OPA2990IDSGR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
OPA2990IDSGR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:28,497
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Product details
Overview
OPA2990IDSGR 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 2.7 V to 40 V single supply or ±1.35 V to ±20 V dual supply, and is used in high-precision ADC drivers, current sensing, and multiplexed data-acquisition systems.
For engineers reviewing the OPA2990IDSGR datasheet, OPA2990IDSGR pinout, OPA2990IDSGR application, or OPA2990IDSGR equivalent, this page delivers verified electrical specs, dual-channel WSON-8 package details, shutdown-enabled operation, rail-to-rail CMVR/OMVR, and real-world implementation context for industrial signal conditioning and high-voltage analog front-ends.
Technical Context
The OPA2990IDSGR integrates two matched, high-voltage op amps in an 8-pin WSON package with exposed thermal pad connected to V–. Its architecture supports MUX-friendly inputs-differential and common-mode voltage ranges extend to both supply rails-and enables open-loop comparator use without phase reversal.
It features robust EMIRR (78 dB at 1.8 GHz), high short-circuit output current (±80 mA), and stable capacitive load drive up to 100 pF. Shutdown control is implemented per channel via dedicated SHDN1/SHDN2 pins, each requiring logic-low to enable amplification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 40 V single supply or ±1.35 V to ±20 V dual supply - supports wide industrial power rails including 24-V and 36-V systems. |
| Input Offset Voltage | ±0.3 mV (max) - enables sub-millivolt DC accuracy in precision sensor interfaces and reference buffers. |
| Offset Drift | ±0.6 µV/°C - ensures stable baseline over –40°C to +125°C ambient, critical for uncalibrated embedded systems. |
| Gain-Bandwidth Product | 1.1 MHz - provides sufficient bandwidth for 100-kSPS ADC drivers and motor control loop feedback paths. |
| Slew Rate | 4.5 V/µs - supports fast settling of 10-V step signals within 4 µs (0.1% error), suitable for dynamic current sensing. |
| Quiescent Current | 120 µA per amplifier - enables low-power operation in battery-backed or energy-constrained modules. |
| CMRR | 115 dB (typ) at 40 V - rejects supply noise and common-mode interference in noisy industrial environments. |
| Output Swing | Within 2 mV of rails (no load, 40 V) - maximizes dynamic range in rail-to-rail signal chains and single-supply systems. |
Pinout & Package
OPA2990IDSGR is housed in an 8-pin WSON package (DSG) measuring 2.00 mm × 2.00 mm with an exposed thermal pad. The pad must be soldered to V– for optimal thermal performance and EMI suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT1 | Output, Channel 1 | Amplified output signal for first op amp; rail-to-rail capable, drives loads down to 2 kΩ. |
| 2: IN1– | Inverting Input, Channel 1 | Differential input node; accepts voltages from (V–) – 0.2 V to (V+) + 0.2 V - true rail-to-rail CMVR. |
| 3: IN1+ | Noninverting Input, Channel 1 | Differential input node; same rail-to-rail CMVR as IN1–; compatible with multiplexer outputs. |
| 4: V– | Negative Supply | Lowest potential supply rail; thermal pad must be electrically and thermally connected to this pin. |
| 5: SHDN1 | Shutdown Control, Channel 1 | Logic-low enables Channel 1; logic-high disables (high-impedance output); threshold defined relative to V–. |
| 6: SHDN2 | Shutdown Control, Channel 2 | Independent logic-low enable for Channel 2; allows selective power gating in dual-sensor systems. |
| 7: OUT2 | Output, Channel 2 | Second rail-to-rail output; fully independent from OUT1, including output stage and biasing. |
| 8: V+ | Positive Supply | Highest potential supply rail; supports up to 40 V; supplies both amplifiers and internal bias circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of supply voltage range in single-supply systems, eliminating level-shifting components. |
| MUX-friendly/comparator inputs | Accepts differential inputs beyond rails without damage or phase reversal - ideal for multiplexed sensor arrays. |
| Per-channel shutdown control | Reduces total system quiescent current by >50% when one channel is idle, extending battery life in portable instruments. |
| High EMIRR (78 dB @ 1.8 GHz) | Rejects RF interference from wireless modules and switching power supplies without external filtering. |
| ±80 mA short-circuit output current | Provides robust fault tolerance during transient overloads in motor control and power delivery applications. |
| Low 30 nV/√Hz input noise | Preserves signal integrity in low-level sensor amplification (e.g., bridge sensors, thermocouples) without added gain-stage noise. |
Applications
| Multiplexed Data-Acquisition System | High-Side Current Sensing |
|---|---|
|
Use Scenario: 16-channel industrial DAQ with analog multiplexer feeding into a single ADC. IC Role / Device Role / Timing Role: Dual OPA2990IDSGR channels buffer and condition multiplexed sensor signals before ADC sampling. Use Value: Rail-to-rail CMVR accommodates varying sensor common-mode levels; low offset ensures <1 LSB error across full temperature range. |
Use Scenario: Real-time monitoring of 24-V motor phase current using shunt resistor and isolated amplifier. IC Role / Device Role / Timing Role: OPA2990IDSGR Channel 1 amplifies high-side shunt voltage; Channel 2 buffers reference for offset compensation. Use Value: ±300 µV offset minimizes current measurement error; 40-V rating eliminates need for level-shifting in 24-V bus applications. |
| ADC Driver and Reference Buffer | Programmable Logic Controller Analog I/O |
|
Use Scenario: Driving SAR ADC (e.g., ADS8860) with 16-bit resolution and 100-kSPS sampling rate. IC Role / Device Role / Timing Role: OPA2990IDSGR provides low-noise, low-distortion drive and reference buffering for precision conversion. Use Value: 0.00162% THD+N and 4.5 V/µs slew rate ensure <0.1 LSB distortion and full-scale settling within 4 µs. |
Use Scenario: Analog input module in PLC rack accepting 0–10 V, ±10 V, and 4–20 mA field signals. IC Role / Device Role / Timing Role: OPA2990IDSGR channels condition multiple sensor inputs simultaneously with configurable gain and filtering. Use Value: Wide supply range (2.7–40 V) simplifies power architecture; shutdown pins enable channel-specific power management during idle cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-voltage, precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2182IDR | Lower offset (±4 µV), higher cost, 10-MHz GBW, no shutdown pins | Better for ultra-precision DC applications; unsuitable where per-channel power gating is required | Select OPA2182IDR only when sub-10-µV offset dominates design requirements and shutdown is unnecessary. |
| LM2904BDR | Lower voltage (36 V max), higher offset (±1.5 mV), no rail-to-rail output, no shutdown | Cost-optimized general-purpose use; insufficient for rail-to-rail signal chain or low-offset current sensing | Choose LM2904BDR only for non-critical, low-cost industrial controls where 40-V operation and precision are not required. |
Compared with OPA2182IDR and LM2904BDR, the OPA2990IDSGR uniquely balances 40-V operation, ±300 µV offset, per-channel shutdown, and rail-to-rail I/O - making it the only option among the three qualified for high-accuracy, high-voltage, power-aware analog front-ends.
Availability
OPA2990IDSGR is available at Aetrix Electronics and suitable for multiplexed data acquisition, high-side current sensing, ADC driver, and PLC analog I/O applications requiring stable component supply, long-term industrial lifecycle support, and guaranteed traceability.
Supply support for OPA2990IDSGR 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 innovation in precision amplifiers and high-reliability industrial ICs.
The OPAx990 family was designed specifically for high-voltage industrial signal conditioning - delivering rail-to-rail precision, robust EMI immunity, and flexible power management in compact packages for factory automation, energy infrastructure, and motor control systems.
FAQ
What is the maximum supply voltage for OPA2990IDSGR?
The OPA2990IDSGR supports a maximum supply voltage of 40 V across V+ and V– terminals, or ±20 V in dual-supply configuration. Absolute maximum ratings specify 42 V, but operation above 40 V is not recommended for reliability. This 40-V rating enables direct interfacing with 24-V and 36-V industrial buses without external level-shifting circuitry, and is confirmed in Section 6.1 of the SBOS933I datasheet.
Does OPA2990IDSGR support rail-to-rail input and output?
Yes, the OPA2990IDSGR supports true rail-to-rail input and output operation. Its common-mode input voltage range extends from (V–) – 0.2 V to (V+) + 0.2 V, and output swing reaches within 2 mV of both rails under no-load conditions at 40 V supply. This capability is explicitly documented in Sections 6.3 and 6.7 of the SBOS933I datasheet and enables full dynamic range utilization in single-supply systems.
How does shutdown work on OPA2990IDSGR?
The OPA2990IDSGR implements independent per-channel shutdown via SHDN1 (Pin 5) and SHDN2 (Pin 6). A logic-low voltage (≤ V– + 0.2 V) enables the respective amplifier; a logic-high (≥ V– + 1.1 V) disables it, placing the output in high-impedance state. Shutdown timing is 11 µs enable / 2.5 µs disable, as specified in Section 6.3 and Section 7.4 of the SBOS933I datasheet.
What package type is OPA2990IDSGR supplied in?
OPA2990IDSGR is supplied in an 8-pin WSON package (Texas Instruments package code DSG), measuring 2.00 mm × 2.00 mm with an exposed thermal pad. The pad must be soldered to the V– net for thermal and EMI performance. This package is listed in the Device Information table (Section 4) and Pin Configuration (Figure 5-5) of the SBOS933I datasheet.
Is OPA2990IDSGR suitable for use as a comparator?
Yes, the OPA2990IDSGR can be used as a high-precision comparator in open-loop configuration due to its MUX-friendly inputs - differential inputs operate reliably up to the supply rails without phase reversal or latch-up. However, it lacks built-in hysteresis or push-pull output, so external hysteresis and output conditioning may be needed for clean digital transitions in noisy environments.
OPA2990IDSGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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:
- 8-WSON (2x2)
OPA2990IDSGR FAQ
1.How can I place an order for OPA2990IDSGR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2990IDSGR 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 OPA2990IDSGR reliable?
The price and inventory of OPA2990IDSGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2990IDSGR is usually 5 days.
3.What payment methods are accepted for OPA2990IDSGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2990IDSGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2990IDSGR?
OPA2990IDSGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2990IDSGR 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 OPA2990IDSGR?
For technical support, including OPA2990IDSGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2990IDSGR requirements.
6.How does Aetrix verify that OPA2990IDSGR is sourced from the original manufacturer or authorized distributors?
All OPA2990IDSGR 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 OPA2990IDSGR meets industry standards.
7.What is the process for return or replacement of OPA2990IDSGR?
All OPA2990IDSGR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2990IDSGR, 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 OPA2990IDSGR part is unused and in its original packaging.
Return procedure for OPA2990IDSGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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