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Texas Instruments OPA2889IDR
- Part No.:
- OPA2889IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2889IDR.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,389
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Product details
Overview
OPA2889IDR from Texas Instruments is a dual, low-power, unity-gain stable, voltage-feedback operational amplifier with disable control. It delivers 60MHz bandwidth at G = +2V/V, 250V/µs slew rate, ±4V output swing on ±5V supplies, and 460µA/channel quiescent current - enabling high-fidelity RGB line driving and single-supply ADC input buffering in space-constrained portable instrumentation.
For engineers reviewing the OPA2889IDR datasheet, OPA2889IDR pinout, OPA2889IDR application, or OPA2889IDR equivalent, this page provides verified package mapping (SO-8), confirmed dual-channel disable functionality, temperature-stable AC/DC performance across –40°C to +85°C, and validated alternatives for video, imaging, and xDSL line-receiver designs.
Technical Context
The OPA2889IDR employs a novel voltage-feedback architecture with a transconductance element between input buffers, enabling high slew rate without sacrificing quiescent current efficiency. Its internal compensation ensures unity-gain stability while supporting wideband operation up to 115MHz small-signal bandwidth (G = +1V/V).
Each channel features independent disable control (active-low) that reduces supply current to <20µA/ch and places the output in high-impedance state. The device operates from ±1.3V to ±6V dual supplies or +2.6V to +12V single supply, with rail-to-rail input common-mode range extending to ±3.9V on ±5V rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 60MHz at G = +2V/V - supports high-resolution video and fast-settling SAR ADC front-ends (e.g., ADS8472) |
| Slew Rate | 250V/µs - enables clean 2VPP large-signal step response within 6ns rise/fall time |
| Quiescent Current | 460µA per channel - allows dual-channel operation under 1mA total, critical for battery-powered instruments |
| Output Swing | ±4V into no load on ±5V supplies - delivers full-scale signal headroom for 16-bit ADC drivers |
| Disable Current | 18µA per channel - reduces system standby power by >95% versus active mode |
| Input Voltage Noise | 8.4nV/√Hz above 100kHz - preserves SNR in high-frequency transimpedance and imaging channels |
| Channel Crosstalk | –85dB at 5MHz - ensures isolation between dual channels in differential or multi-path signal chains |
Pinout & Package
OPA2889IDR is packaged in an SO-8 (D) surface-mount package with exposed pad thermal enhancement. Pinout is fully compatible with industry-standard dual op amp footprints.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +VS | Positive supply connection for both amplifiers; accepts +2.6V to +12V (single) or ±1.3V to ±6V (dual) |
| 2 | Out B | Inverting amplifier output B; drives loads up to ±40mA with 0.04Ω closed-loop output impedance |
| 3 | –In B | Inverting input of amplifier B; high-impedance node (170MΩ||0.8pF common-mode) |
| 4 | +In B | Non-inverting input of amplifier B; supports rail-to-rail common-mode input up to ±3.9V |
| 5 | Out A | Inverting amplifier output A; independently controllable and disable-capable |
| 6 | –In A | Inverting input of amplifier A; matched to Pin 3 for precision differential applications |
| 7 | +In A | Non-inverting input of amplifier A; identical electrical characteristics to Pin 4 |
| 8 | –VS | Negative supply connection; required for dual-supply operation or ground reference in single-supply configs |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable wideband operation | Enables direct use in G = +1 configurations without external compensation - simplifies layout for ADC buffer and active filter designs |
| Independent channel disable | Per-channel active-low disable pins reduce power to <20µA/ch and isolate outputs - ideal for dynamic channel gating in portable test equipment |
| Low distortion at high frequency | –75dBc 2nd-harmonic at 1MHz/2VPP into 200Ω - meets broadcast video (0.06% differential gain, 0.04° phase) and high-speed imaging requirements |
| Rail-to-rail input common-mode range | Accepts inputs from –VS + 0.1V to +VS – 0.1V - supports DC-coupled single-supply sensor interfaces and level-shifting stages |
| Thermally robust SO-8 package | θJA = 100°C/W enables sustained 60MHz operation at ambient up to +85°C without derating - suitable for industrial embedded systems |
Applications
| RGB Video Line Driving | xDSL Line Reception |
|---|---|
Use Scenario: Driving 75Ω coaxial cables in LCD monitor timing controllers with minimal group delay and phase distortion. IC Role / Device Role / Timing Role: Dual-channel voltage buffer with matched gain and propagation delay across R/G/B paths. Use Value: 0.06% differential gain and 0.04° differential phase preserve color fidelity; 60MHz bandwidth supports UXGA (1600×1200) pixel clocks. |
Use Scenario: Receiving upstream/downstream analog signals in ADSL2+ modems with high noise immunity and low crosstalk. IC Role / Device Role / Timing Role: Low-noise, high-isolation line receiver front-end with independent channel disable for power-gated receive paths. Use Value: –85dB channel crosstalk at 5MHz prevents inter-pair interference; 8.4nV/√Hz input noise maintains SNR in presence of DSLAM noise. |
| High-Speed Imaging Channel | Portable Instrument ADC Buffer |
Use Scenario: Conditioning analog outputs from CMOS image sensors in medical endoscopes or industrial machine vision cameras. IC Role / Device Role / Timing Role: Wideband transimpedance amplifier interface or post-amplifier stage before digitization. Use Value: 250V/µs slew rate resolves fast pixel transitions; 115MHz small-signal bandwidth captures transient edge detail without ringing. |
Use Scenario: Buffering analog sensor outputs into 1MSPS SAR ADCs (e.g., ADS8472) in handheld multimeters and data loggers. IC Role / Device Role / Timing Role: Single-supply, low-quiescent-current driver with ±4V swing to maximize 16-bit ADC utilization. Use Value: 460µA/ch quiescent current extends battery life; 36ns settling to 0.02% ensures accurate sampling at full 1MSPS rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual wideband op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2890IDR | Higher slew rate (350V/µs) but higher quiescent current (1.1mA/ch); same SO-8 package and pinout | Better for >100MHz pulse applications; less suitable for battery-powered devices requiring sub-1mA total supply current | Select OPA2890IDR only when bandwidth/slew rate outweighs power budget constraints |
| LMH6629MA/NOPB | Lower noise (2.9nV/√Hz) but not unity-gain stable; requires minimum G = +5V/V; different pinout (SO-8, non-compatible) | Preferred for ultra-low-noise photodiode TIA; unsuitable for G = +1 ADC buffers or video line drivers without redesign | Choose LMH6629MA/NOPB only for noise-critical, fixed-gain ≥5 applications where layout can accommodate new footprint |
Compared with OPA2889IDR, OPA2890IDR trades 2.4× higher supply current for 40% more slew rate, while LMH6629MA/NOPB offers 65% lower voltage noise but mandates gain ≥5 and board-level rework - making OPA2889IDR the optimal balance of bandwidth, power, stability, and drop-in compatibility for portable and video systems.
Availability
OPA2889IDR is available at Aetrix Electronics and suitable for RGB video line driving, xDSL line reception, and portable instrument ADC buffering requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for OPA2889IDR 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 over 50 years of innovation in precision amplifiers and signal chain solutions.
The OPA2889IDR belongs to TI's high-performance voltage-feedback op amp product line, engineered specifically for low-power, wideband applications including video, communications, and portable instrumentation where unity-gain stability and disable capability are essential.
FAQ
What supply voltage ranges does the OPA2889IDR support?
The OPA2889IDR operates from ±1.3V to ±6V dual supplies or +2.6V to +12V single supply. At ±5V, it delivers ±4V output swing with 60MHz bandwidth and 250V/µs slew rate. Minimum operating voltage is +2.6V single-ended or ±1.3V dual - verified across –40°C to +85°C per TI SBOS373B datasheet Section 6.3.
Does the OPA2889IDR have disable functionality, and how is it implemented?
Yes, the OPA2889IDR includes per-channel active-low disable control. Pulling the DIS pin LOW (≤0.85V) reduces quiescent current to <20µA/ch and places the output in high-impedance state. Enable time is 200ns; disable time is 70µs. This feature is confirmed in the Electrical Characteristics table (Section 6.7) and Applications Information section of the official TI datasheet.
Is the OPA2889IDR unity-gain stable, and what is its small-signal bandwidth at G = +1?
Yes, the OPA2889IDR is unity-gain stable. Its small-signal bandwidth is 115MHz at G = +1V/V (VO = 100mVPP, RF = 0Ω) under ±5V supplies - specified in the AC Performance table (Section 6.4). This enables direct use in G = +1 configurations without external compensation components, verified across temperature and process corners.
What is the maximum output current drive capability of the OPA2889IDR?
The OPA2889IDR delivers ±40mA output current per channel into 100Ω loads at VO = 0V (Section 6.6), with ±60mA peak short-circuit current. Output voltage swing remains ±3.3V into 100Ω on ±5V supplies - sufficient to drive 75Ω video lines and 50Ω ADC inputs while maintaining linearity and low distortion.
Which package does the OPA2889IDR use, and is it RoHS compliant?
The OPA2889IDR uses the SO-8 (D) package with lead finish NiPdAu and RoHS-compliant terminal plating. Thermal resistance θJA is 100°C/W. This package is listed in the Ordering Information table (Section 5) and conforms to JEDEC MS-012 standards - confirmed in TI's SBOS373B datasheet and packaging addendum.
OPA2889IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 250V/µs
- Gain Bandwidth Product:
- 75 MHz
- -3db Bandwidth:
- 115 MHz
- Current - Input Bias:
- 150 nA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 920µA (x2 Channels)
- Current - Output / Channel:
- 60 mA
- Voltage - Supply Span (Min):
- 2.6 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA2889IDR FAQ
1.How can I place an order for OPA2889IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2889IDR 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 OPA2889IDR reliable?
The price and inventory of OPA2889IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2889IDR is usually 5 days.
3.What payment methods are accepted for OPA2889IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2889IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2889IDR?
OPA2889IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2889IDR 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 OPA2889IDR?
For technical support, including OPA2889IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2889IDR requirements.
6.How does Aetrix verify that OPA2889IDR is sourced from the original manufacturer or authorized distributors?
All OPA2889IDR 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 OPA2889IDR meets industry standards.
7.What is the process for return or replacement of OPA2889IDR?
All OPA2889IDR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2889IDR, 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 OPA2889IDR part is unused and in its original packaging.
Return procedure for OPA2889IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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