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Texas Instruments OPA2889IDGSTG4
- Part No.:
- OPA2889IDGSTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2889IDGSTG4.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,489
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Product details
Overview
OPA2889IDGSTG4 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 at 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 ADC input buffering in portable instrumentation.
For engineers reviewing the OPA2889IDGSTG4 datasheet, OPA2889IDGSTG4 pinout, OPA2889IDGSTG4 application, or OPA2889IDGSTG4 equivalent, key selection criteria include its MSOP-10 package with disable pins, differential gain/phase performance (0.06%/0.04°), channel-to-channel crosstalk (–85dB at 5MHz), and guaranteed operation from –40°C to +85°C across supply ranges of +2.6V to +12V single or ±1.3V to ±6V dual.
Technical Context
The OPA2889IDGSTG4 employs a novel voltage-feedback architecture with a transconductance-based input stage that dynamically increases drive to the compensation capacitor under large-signal conditions - enabling 250V/µs slew rate without sacrificing DC precision or power efficiency. This differs fundamentally from conventional fixed-bias differential pairs.
Its dual-channel design includes independent disable inputs (DIS A/DIS B) that reduce supply current to <20µA/ch while placing outputs in high-impedance state - critical for power-managed systems like portable instruments and multi-channel ADC front-ends where channel gating is required without signal coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 60MHz at G = +2V/V (±5V supply): supports high-resolution video and fast data acquisition sampling |
| Slew Rate | 250V/µs (±5V supply): enables clean 2VPP step response within 6ns rise/fall time |
| Output Swing | ±4V no-load on ±5V: delivers full-scale analog signals to 16-bit SAR ADCs like ADS8472 |
| Quiescent Current | 460µA per channel: allows dual-channel operation under 1mA total for battery-powered devices |
| Disable Current | 18µA per channel: reduces system standby power by >98% vs active mode |
| Differential Gain/Phase | 0.06% / 0.04° (RL = 150Ω): meets broadcast video fidelity requirements for RGB line drivers |
| Channel Crosstalk | –85dB at 5MHz: prevents interference between adjacent channels in multi-signal systems |
Pinout & Package
OPA2889IDGSTG4 is housed in a thermally enhanced MSOP-10 (DGS) package with 0.5mm pitch, optimized for space-constrained PCB layouts and improved thermal dissipation (θJA = 135°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: –In A | Inverting input, Channel A | Accepts differential or single-ended feedback; high-impedance (170MΩ||0.8pF) |
| 2: Out A | Output, Channel A | Drives up to ±40mA into 100Ω load; low closed-loop impedance (0.04Ω @ 100kHz) |
| 3: +VS | Positive supply rail | Supports +2.6V to +12V single or ±1.3V to ±6V dual supply configurations |
| 4: Out B | Output, Channel B | Independent output with identical drive capability and disable control as Channel A |
| 5: –In B | Inverting input, Channel B | Matched input structure to Channel A; enables synchronous dual-channel signal conditioning |
| 6: +In A | Non-inverting input, Channel A | High common-mode rejection (70dB min); accepts input up to ±3.9V on ±5V supplies |
| 7: DIS A | Disable control, Channel A | Pull LOW (<0.85V) to enter power-down; HIGH (>3.3V) enables normal operation |
| 8: –VS | Negative supply rail | Required for dual-supply operation; supports rail-to-rail input common-mode range |
| 9: DIS B | Disable control, Channel B | Independent enable/disable logic per channel - essential for dynamic channel management |
| 10: +In B | Non-inverting input, Channel B | Matches Channel A input characteristics; enables true dual-channel differential signaling |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable wideband operation | Enables direct use in G = +1 configurations without external compensation - simplifies layout for ADC buffers |
| Independent per-channel disable | Allows selective shutdown of one amplifier while maintaining bias and signal path integrity on the other channel |
| Low distortion at high frequency | –75dBc 2nd-harmonic at 1MHz/2VPP ensures minimal spectral contamination in imaging and communication channels |
| High output drive into capacitive loads | Maintains stability with ≥100pF capacitive loads when using recommended series resistance (RS) |
| Video-optimized AC performance | 0.06% differential gain and 0.04° phase error meet SMPTE/ITU-R BT.601 video line driver specifications |
Applications
| RGB Video Line Driver | Single-Supply ADC Input Buffer |
|---|---|
Use Scenario: Driving three parallel 75Ω coaxial cables carrying R, G, B analog video signals from graphics processor to display interface. IC Role / Device Role / Timing Role: Dual-channel OPA2889IDGSTG4 buffers two channels (e.g., R+G), with third channel implemented via second device; provides gain, level-shifting, and cable drive. Use Value: 0.06% differential gain error preserves color fidelity; ±4V swing matches standard video signal amplitude; 60MHz bandwidth supports 1080p60 pixel clock harmonics. | Use Scenario: Conditioning analog sensor output before digitization by a 16-bit SAR ADC such as ADS8472 in portable test equipment. IC Role / Device Role / Timing Role: Single-supply (+5V) buffer isolates sensor from ADC input capacitance, drives 100Ω load, and provides anti-aliasing filtering interface. Use Value: 250V/µs slew rate settles 2V step in 25ns (0.1%), matching 1MSPS ADC aperture time; low 8.4nV/√Hz noise avoids degrading effective resolution. |
| xDSL Line Receiver Channel | Portable Instrumentation Signal Chain |
Use Scenario: Receiving upstream/downstream analog signals in ADSL2+ or VDSL2 modems with multi-tone interference rejection. IC Role / Device Role / Timing Role: Dual-channel receiver front-end amplifying differential line signals, rejecting common-mode noise, and feeding programmable gain stages. Use Value: –85dB channel crosstalk prevents inter-pair interference; ±5V operation supports legacy xDSL line driver compatibility; low 460µA/ch current extends modem standby time. | Use Scenario: Multi-channel data acquisition in handheld oscilloscopes or portable spectrum analyzers requiring simultaneous analog signal conditioning. IC Role / Device Role / Timing Role: Dual op-amp per board section provides matched gain, offset correction, and selectable disable for unused channels during low-power modes. Use Value: Independent DIS A/DIS B pins allow dynamic channel allocation without hardware reconfiguration; MSOP-10 footprint saves >40% board area vs SO-8 alternatives. |
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 |
|---|---|---|---|
| OPA2890IDGST | Higher slew rate (450V/µs), higher quiescent current (1.2mA/ch), same MSOP-10 package and disable functionality | Better suited for >100MHz small-signal applications but consumes >2.5× more power | Select OPA2890IDGST only when bandwidth/slew rate demand exceeds OPA2889IDGSTG4's 60MHz/250V/µs capability and power budget permits |
| LMH6629MA/NOPB | Wider bandwidth (1.5GHz), no disable function, SO-8 package, higher supply current (12mA/ch) | Targeted at RF/IF signal chains, not low-power portable or video applications | Choose LMH6629MA/NOPB only for ultra-high-frequency applications where disable control and low power are secondary to raw speed |
Compared with OPA2889IDGSTG4, OPA2890IDGST trades 2.6× higher power for 2× bandwidth headroom, while LMH6629MA/NOPB abandons disable control and low-power operation entirely for RF-grade performance - making OPA2889IDGSTG4 the optimal balance for portable, video, and ADC-buffering designs requiring channel gating.
Availability
OPA2889IDGSTG4 is available at Aetrix Electronics and suitable for RGB video line driving, single-supply ADC input buffering, and portable instrumentation signal conditioning requiring stable component supply across industrial temperature ranges.
Supply support for OPA2889IDGSTG4 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 op amps and signal chain solutions.
The OPA2889IDGSTG4 belongs to TI's high-performance, low-power voltage-feedback op amp product line, designed specifically for portable instrumentation, video signal routing, and high-speed data acquisition systems demanding both bandwidth and power efficiency.
FAQ
What supply voltage ranges does the OPA2889IDGSTG4 support?
The OPA2889IDGSTG4 operates from +2.6V to +12V single supply or ±1.3V to ±6V dual supplies. Its specified performance - including 60MHz bandwidth and ±4V output swing - is guaranteed at ±5V. The device maintains functionality down to +2.6V, enabling use in low-voltage portable systems where other wideband op amps fail to start or stabilize.
Does the OPA2889IDGSTG4 require external compensation for unity-gain stability?
No, the OPA2889IDGSTG4 is internally compensated for unity-gain stability. It achieves this without external components across all gains ≥ +1V/V, verified by 115MHz small-signal bandwidth at G = +1V/V and flat frequency response to 14MHz (0.1dB flatness at G = +2V/V). This eliminates layout complexity and component count in ADC buffer and video driver applications.
How does the disable function behave on the OPA2889IDGSTG4?
When DIS A or DIS B is pulled LOW (<0.85V), the corresponding channel draws <20µA supply current and places its output in high-impedance state - electrically disconnecting it from the load. Enable time is 200ns and disable time is 70µs. Both channels remain fully functional when their respective disable pins are held HIGH (>3.3V) or left open.
What is the maximum capacitive load the OPA2889IDGSTG4 can drive stably?
The OPA2889IDGSTG4 remains stable driving ≥100pF capacitive loads when used with the manufacturer-recommended series resistance (RS) - typically 374Ω to 750Ω depending on load value. Figure 15 in the SBOS373B datasheet provides exact RS vs CL curves. Without RS, instability may occur above ~22pF; with proper RS, it reliably drives 100pF loads common in ADC input networks and video termination circuits.
Is the OPA2889IDGSTG4 pin-compatible with other TI dual op amps in MSOP-10?
No, the OPA2889IDGSTG4 has a unique MSOP-10 pinout optimized for dual-channel disable control (pins 7 and 9), unlike standard dual op amp pinouts. It is not pin-compatible with OPA2691, OPA2890, or LMH6629 in MSOP-10. Layout must follow the specific pin mapping shown in the SBOS373B datasheet - particularly the placement of +VS (pin 3) and –VS (pin 8) relative to the disable inputs.
OPA2889IDGSTG4 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:
- Obsolete
- 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
OPA2889IDGSTG4 FAQ
1.How can I place an order for OPA2889IDGSTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2889IDGSTG4 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 OPA2889IDGSTG4 reliable?
The price and inventory of OPA2889IDGSTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2889IDGSTG4 is usually 5 days.
3.What payment methods are accepted for OPA2889IDGSTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2889IDGSTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2889IDGSTG4?
OPA2889IDGSTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2889IDGSTG4 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 OPA2889IDGSTG4?
For technical support, including OPA2889IDGSTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2889IDGSTG4 requirements.
6.How does Aetrix verify that OPA2889IDGSTG4 is sourced from the original manufacturer or authorized distributors?
All OPA2889IDGSTG4 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 OPA2889IDGSTG4 meets industry standards.
7.What is the process for return or replacement of OPA2889IDGSTG4?
All OPA2889IDGSTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2889IDGSTG4, 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 OPA2889IDGSTG4 part is unused and in its original packaging.
Return procedure for OPA2889IDGSTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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