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Texas Instruments OPA2889IDGSR
- Part No.:
- OPA2889IDGSR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2889IDGSR.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:634
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Product details
Overview
OPA2889IDGSR from Texas Instruments is a dual, low-power, wideband, unity-gain stable voltage-feedback operational amplifier with independent disable control per channel. It delivers 60MHz bandwidth (G = +2V/V), 250V/µs slew rate, ±4V output swing on ±5V supplies, and 460µA/ch quiescent current - enabling high-fidelity RGB line driving and single-supply SAR ADC input buffering in portable instrumentation.
For engineers reviewing the OPA2889IDGSR datasheet, OPA2889IDGSR pinout, OPA2889IDGSR application, or OPA2889IDGSR equivalent, this page provides verified electrical specifications, MSOP-10 package terminal mapping, video/ADC/imaging use-case implementation details, and validated alternative options for low-power wideband op amp selection.
Technical Context
The OPA2889IDGSR employs a novel transconductance-based input stage that dynamically increases compensation capacitor charging current with input error voltage - achieving 250V/µs slew rate without sacrificing unity-gain stability or quiescent power. Its architecture avoids fixed-bias current steering limitations typical of conventional voltage-feedback op amps.
This design enables simultaneous 60MHz full-power bandwidth and ±4V output swing into 100Ω loads while maintaining <0.1dB flatness to 14MHz and differential gain/phase error of 0.06%/0.04° at 1.4VPP - critical for analog video and high-speed imaging signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (G = +2V/V) | 60MHz - supports >10MHz video baseband and 1MSPS SAR ADC sampling with minimal group delay distortion |
| Slew Rate | 250V/µs - ensures faithful reproduction of fast-rising video sync pulses and ADC input transients |
| Output Swing (±5V) | ±4V no-load - delivers full-scale 8VPP differential signals for 16-bit ADC drivers without rail-to-rail input requirements |
| Quiescent Current | 460µA/ch - enables battery-powered portable instruments with dual-channel analog front ends |
| Disable Current | 18µA/ch - reduces system standby power by >96% while maintaining high-Z output state |
| Input Voltage Noise | 8.4nV/√Hz - preserves SNR in low-amplitude sensor and imaging channel amplification |
| Channel Crosstalk | –85dB @ 5MHz - prevents interference between dual-channel ADC inputs or RGB signal paths |
Pinout & Package
OPA2889IDGSR is housed in a thermally enhanced MSOP-10 package (DGS), optimized for space-constrained portable instrumentation and high-density PCB layouts. The 3mm × 3mm footprint includes dedicated disable pins for independent channel power gating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: –In A | Inverting Input Channel A | Differential input node for first amplifier; requires matched trace length in high-frequency applications |
| 2: Out A | Output Channel A | Capable of ±40mA sourcing/sinking; layout must minimize parasitic inductance for stability |
| 3: +VS | Positive Supply Rail | Shared supply for both channels; decoupling capacitor required within 2mm of pin |
| 4: Out B | Output Channel B | Independent output with identical drive capability to Out A; isolated from Out A by >85dB crosstalk |
| 5: –In B | Inverting Input Channel B | Second differential input; pin 5 and pin 1 are electrically isolated but share common substrate |
| 6: +In A | Noninverting Input Channel A | High-impedance input (170MΩ||0.8pF); sensitive to PCB leakage and ESD coupling |
| 7: DIS A | Disable Control Channel A | Pull LOW to reduce supply current to <20µA/ch; open or HIGH enables normal operation |
| 8: –VS | Negative Supply Rail | Required for dual-supply operation; supports ±1.3V to ±6V range |
| 9: DIS B | Disable Control Channel B | Independent enable/disable logic for second channel; no shared control logic with DIS A |
| 10: +In B | Noninverting Input Channel B | Matched DC specs to +In A; used for differential signaling or independent signal conditioning |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable wideband operation | Eliminates external compensation components in G ≥ 1 configurations, reducing BOM count and board area |
| Independent per-channel disable | Enables dynamic power management in multi-channel systems - e.g., disabling unused ADC input buffers during idle cycles |
| ±4V output swing on ±5V supplies | Drives 16-bit SAR ADCs like ADS8472 to full scale without level-shifting circuitry or rail-to-rail input op amps |
| 0.06% differential gain / 0.04° phase error | Meets broadcast-quality video line driver requirements for RGB and component video interfaces |
| 14MHz 0.1dB bandwidth flatness | Preserves amplitude integrity across NTSC/PAL baseband spectrum without post-filtering |
| 250V/µs slew rate at 460µA/ch | Delivers high-speed transient response while consuming <1mW per channel - 3× lower than comparable current-feedback alternatives |
Applications
| RGB Video Line Driver | Single-Supply ADC Input Buffer |
|---|---|
|
Use Scenario: Driving three parallel 75Ω coaxial cables for RGB analog monitor outputs in portable medical displays. IC Role / Device Role / Timing Role: Dual-channel OPA2889IDGSR configures as two independent 1× gain followers (one for R+G, one for B) with disable control for power gating during display sleep mode. Use Value: 0.06% differential gain error preserves color fidelity; ±4V swing matches 8VPP RGB standard; 250V/µs slew handles 15.7kHz horizontal sync edges without overshoot. |
Use Scenario: Buffering differential inputs of 16-bit, 1MSPS SAR ADC (e.g., ADS8472) in battery-powered data acquisition modules. IC Role / Device Role / Timing Role: Configured as noninverting G = +2V/V driver to deliver full-scale ±4V differential output to ADC's input pins. Use Value: 60MHz bandwidth ensures <0.02% settling error within 36ns; –85dB crosstalk prevents channel-to-channel interference in multi-sensor systems. |
| xDSL Line Receiver Front End | High-Speed Imaging Signal Chain |
|
Use Scenario: Receiving and conditioning upstream ADSL2+ signals (up to 2.2MHz) in compact DSLAM line cards. IC Role / Device Role / Timing Role: Single channel used as programmable-gain amplifier with disable control to isolate receiver during transmit bursts. Use Value: 70MHz large-signal bandwidth captures full xDSL spectral content; 18µA disable current minimizes standby power in always-on line cards. |
Use Scenario: Amplifying low-noise photodiode currents from CMOS image sensors in industrial machine vision cameras. IC Role / Device Role / Timing Role: Dual configuration: Channel A as transimpedance amplifier (TIA), Channel B as correlated double sampling (CDS) buffer. Use Value: 8.4nV/√Hz input voltage noise maintains SNR in low-light conditions; independent disable allows TIA shutdown during pixel reset phases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wideband operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2890IDGSR | Higher slew rate (450V/µs) but higher quiescent current (1.1mA/ch); same MSOP-10 package and pinout | Better for >100MHz pulse applications; less suitable for battery-powered devices due to 2.4× higher supply current | Select OPA2890IDGSR only when >250V/µs slew is required and power budget allows ≥1mA/ch |
| OPA2691IDGSR | Current-feedback architecture; 2100V/µs slew rate but requires external feedback resistor; not unity-gain stable | Requires careful layout and compensation; unsuitable for G = +1 configurations without redesign | Choose OPA2691IDGSR only for fixed-gain >+2 applications where maximum speed outweighs design complexity |
Compared with OPA2889IDGSR, OPA2890IDGSR trades 2.4× higher power for 80% faster slew, while OPA2691IDGSR offers 8.4× higher slew but sacrifices unity-gain stability and adds layout sensitivity - making OPA2889IDGSR optimal for precision, low-power, wideband dual-channel applications requiring plug-and-play stability.
Availability
OPA2889IDGSR is available at Aetrix Electronics and suitable for RGB video line driving, single-supply ADC input buffering, and high-speed imaging signal conditioning requiring stable component supply across industrial temperature ranges.
Supply support for OPA2889IDGSR 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-performance op amp design and manufacturing.
The OPA2889IDGSR belongs to TI's precision wideband voltage-feedback op amp product line, engineered specifically for low-power, high-fidelity signal conditioning in portable instrumentation, video infrastructure, and high-speed data acquisition systems.
FAQ
What supply voltage ranges does the OPA2889IDGSR support?
The OPA2889IDGSR operates from +2.6V to +12V single supply or ±1.3V to ±6V dual supplies. At ±5V, it delivers specified 60MHz bandwidth and ±4V output swing. The absolute maximum rating is ±6.5V, and thermal derating begins above +85°C ambient.
How does the disable function work on the OPA2889IDGSR?
The OPA2889IDGSR features independent DIS A and DIS B pins (pins 7 and 9). Pulling either pin LOW reduces its channel's supply current to <20µA/ch and places the output in high-impedance state. Leaving the pin open or HIGH enables normal operation. Enable time is 200ns; disable time is 70µs.
Can the OPA2889IDGSR drive 100Ω loads at full bandwidth?
Yes - the OPA2889IDGSR delivers ±3.3V output swing into 100Ω loads at ±5V supplies while maintaining 60MHz small-signal bandwidth and 70MHz large-signal bandwidth. Its ±40mA output current capability ensures stable drive under these conditions without external current boosting.
What is the input common-mode voltage range for the OPA2889IDGSR?
At ±5V supplies, the OPA2889IDGSR supports a ±3.9V input common-mode range (min) at +25°C, decreasing to ±3.6V over –40°C to +85°C. This allows direct interfacing with most 16-bit ADC references and video signal levels without level-shifting circuitry.
Is the OPA2889IDGSR suitable for differential signal conditioning?
Yes - the OPA2889IDGSR's –85dB channel-to-channel crosstalk at 5MHz and matched AC/DC performance between channels make it well-suited for differential configurations. Application diagrams in the datasheet show validated differential gain stages using both channels with 750Ω feedback networks.
OPA2889IDGSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm 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:
- 10-VSSOP
OPA2889IDGSR FAQ
1.How can I place an order for OPA2889IDGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2889IDGSR 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 OPA2889IDGSR reliable?
The price and inventory of OPA2889IDGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2889IDGSR is usually 5 days.
3.What payment methods are accepted for OPA2889IDGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2889IDGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2889IDGSR?
OPA2889IDGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2889IDGSR 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 OPA2889IDGSR?
For technical support, including OPA2889IDGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2889IDGSR requirements.
6.How does Aetrix verify that OPA2889IDGSR is sourced from the original manufacturer or authorized distributors?
All OPA2889IDGSR 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 OPA2889IDGSR meets industry standards.
7.What is the process for return or replacement of OPA2889IDGSR?
All OPA2889IDGSR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2889IDGSR, 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 OPA2889IDGSR part is unused and in its original packaging.
Return procedure for OPA2889IDGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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