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Texas Instruments OPA2889IDGST
- Part No.:
- OPA2889IDGST
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2889IDGST.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,230
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Product details
Overview
OPA2889IDGST from Texas Instruments is a dual, low-power, unity-gain stable voltage-feedback operational amplifier in MSOP-10 package, delivering 60MHz bandwidth (G = +2V/V), 250V/µs slew rate, ±4V output swing on ±5V supplies, and 460µA/channel quiescent current - optimized for RGB line driving, ADC input buffering, and xDSL line reception.
For engineers reviewing the OPA2889IDGST datasheet, OPA2889IDGST pinout, OPA2889IDGST application, or OPA2889IDGST equivalent, this page provides verified electrical specifications, disable-function timing, thermal characteristics for MSOP-10, channel crosstalk performance, and validated alternative op amps for high-speed, low-power analog signal conditioning.
Technical Context
The OPA2889IDGST employs a novel voltage-feedback architecture with a high-slew-rate transconductance stage between input buffers, enabling 250V/µs slew rate without sacrificing unity-gain stability or quiescent current efficiency. Its internal compensation ensures stable operation at G ≥ +1V/V across temperature and load conditions.
It integrates independent disable control per channel (available only in MSOP-10), reducing supply current to <55µA/ch in power-down mode while achieving 70dB off-isolation at 5MHz and 200ns enable time. The device supports flexible supply ranges: ±1.3V to ±6V dual or +2.6V to +12V single.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 60 MHz at G = +2V/V (±5V supply); enables high-fidelity video and imaging signal amplification up to 14 MHz 0.1dB flatness. |
| Slew Rate | 250 V/µs (±5V, TA = +25°C); supports full-scale 2VPP step response within 6 ns rise/fall time for fast-settling data acquisition. |
| Output Swing | ±4.0 V (no load, ±5V supply); delivers rail-to-rail compatible dynamic range into 100Ω loads with ±3.3 V swing. |
| Quiescent Current | 460 µA per channel (±5V, +25°C); enables battery-powered portable instruments and low-power sensor interfaces. |
| Disable Current | 18 µA per channel (typical) / ≤55 µA max (–40°C to +85°C); allows deep power-down during idle cycles in multi-channel systems. |
| Channel Crosstalk | –85 dB (input-referred, f = 5 MHz); preserves signal integrity in dual-channel applications like differential ADC drivers or stereo video paths. |
| Harmonic Distortion | –75 dBc (2nd), –80 dBc (3rd) at 1 MHz, 2VPP, RL ≥ 500Ω; meets broadcast-grade video and precision imaging linearity requirements. |
Pinout & Package
OPA2889IDGST is housed in a thermally enhanced MSOP-10 (DGS) package with exposed thermal pad, rated for –40°C to +85°C operation and θJA = 135°C/W. Pinout is fully specified in TI SBOS373B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: –In A | Inverting input, Channel A | Differential input node for Channel A; supports DC-coupled or AC-coupled configurations with matched impedance routing. |
| 2: Out A | Output, Channel A | Capable of ±40 mA sourcing/sinking; requires external series resistor (e.g., 350Ω) for 50Ω video line driving per TI reference design. |
| 3: +VS | Positive supply | Accepts +2.6V to +12V (single) or ±1.3V to ±6V (dual); decoupling with 0.1µF ceramic near pin is mandatory for stability. |
| 4: Out B | Output, Channel B | Independent output with identical drive capability and disable control as Channel A; enables dual-path signal conditioning. |
| 5: –In B | Inverting input, Channel B | Matched to Channel A input structure; supports interleaved or parallel channel architectures with minimal gain mismatch. |
| 6: +In A | Non-inverting input, Channel A | High-impedance (170 MΩ||0.8 pF) node; used for unity-gain buffer or non-inverting gain stages with low bias current error. |
| 7: DIS A | Disable control, Channel A | Active-low logic input; pulls LOW (<0.85 V) to enter power-down; open or HIGH (>3.3 V) enables normal operation. |
| 8: –VS | Negative supply | Required for dual-supply operation; tied to ground for single-supply use with level-shifted input common-mode range. |
| 9: DIS B | Disable control, Channel B | Independent disable for Channel B; enables selective channel shutdown in power-aware systems without affecting Channel A. |
| 10: +In B | Non-inverting input, Channel B | Electrically identical to +In A; supports matched dual-input topologies such as differential-to-single-ended conversion. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable wideband operation | Guaranteed stable at G = +1V/V with >115 MHz small-signal bandwidth, eliminating need for external compensation in most configurations. |
| Per-channel disable with fast enable | 200 ns enable time and 70 µs disable time allow precise power gating in time-multiplexed systems like multi-channel ADC front-ends. |
| Low distortion at high frequency | –80 dBc 3rd-harmonic distortion at 1 MHz enables clean signal amplification for SAR ADCs like ADS8472 requiring 16-bit, 1 MSPS fidelity. |
| High output drive into reactive loads | Stable with ≥100 pF capacitive load when using recommended RS (e.g., 750Ω) per TI Figure 15, supporting LCD panel or cable driver applications. |
| Input common-mode range | Extends to ±3.9 V on ±5V supplies, allowing direct interfacing with 0–4V video signals or 1.2V–3.3V logic-level sensors without level-shifting. |
Applications
| RGB Video Line Driver | xDSL Line Receiver |
|---|---|
|
Use Scenario: Driving three synchronized RGB signals over 75Ω coaxial cables in digital signage or medical display systems. IC Role / Device Role / Timing Role: Dual-channel OPA2889IDGST drives R/G and B channels simultaneously with matched gain, phase, and settling (25 ns to 0.1%) to preserve color fidelity. Use Value: ±4V output swing and 0.04° differential phase error ensure broadcast-compliant NTSC/PAL signal integrity without post-correction. |
Use Scenario: Receiving upstream/downstream analog signals in ADSL2+ CPE modems with twisted-pair line interface. IC Role / Device Role / Timing Role: Configured as transimpedance or differential receiver with disable control to reduce noise floor during idle periods. Use Value: –85 dB channel crosstalk and 70MHz bandwidth support simultaneous multi-tone (DMT) signal recovery with minimal inter-channel interference. |
| High-Speed Imaging Channel | Portable Instrument ADC Buffer |
|
Use Scenario: Conditioning analog outputs from CMOS image sensors in industrial machine vision cameras operating at >10 MSPS pixel rates. IC Role / Device Role / Timing Role: Single-supply +5V configuration buffers sensor output before 16-bit SAR ADC (e.g., ADS8472), leveraging 60MHz bandwidth and 36 ns settling to 0.02%. Use Value: 250V/µs slew rate prevents slew-induced distortion on sharp-edged pixel transitions, preserving edge resolution in high-frame-rate capture. |
Use Scenario: Battery-powered handheld multimeters or oscilloscope probes requiring low-noise, low-power analog front-end amplification. IC Role / Device Role / Timing Role: Dual-channel configuration buffers differential sensor inputs while enabling one channel during measurement and disabling the other to conserve energy. Use Value: 460µA/ch quiescent current and 18µA/ch disable current extend battery life beyond 100 hours in intermittent-use field instruments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2890IDGST | Higher slew rate (450 V/µs), higher quiescent current (1.1 mA/ch), same MSOP-10 package and disable function. | Better suited for >100 MHz small-signal bandwidth needs but increases power budget by 2.4× vs OPA2889IDGST. | Select OPA2890IDGST only when required bandwidth exceeds 60 MHz at G = +2V/V and power constraints permit. |
| OPA2691IDGST | Current-feedback architecture, 2100 V/µs slew rate, not unity-gain stable (min G = +2V/V), higher distortion at low frequencies. | Optimized for fixed-gain, ultra-high-speed applications (e.g., DAC output buffering) but unsuitable for unity-gain video buffers. | Choose OPA2691IDGST for fixed-gain >+2V/V, >200 MHz applications; avoid for ADC input or RGB line driving where unity-gain stability is mandatory. |
Compared with OPA2890IDGST and OPA2691IDGST, the OPA2889IDGST uniquely balances 60MHz bandwidth, unity-gain stability, 460µA/ch quiescent current, and per-channel disable - making it the optimal choice for power-constrained, dual-channel, wideband analog signal conditioning where gain flexibility and low distortion are critical.
Availability
OPA2889IDGST is available at Aetrix Electronics and suitable for RGB video line driving, xDSL line reception, and portable instrument ADC buffering requiring stable component supply, consistent parametric performance across temperature, and long-term production continuity.
Supply support for OPA2889IDGST 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 OPA2889IDGST belongs to TI's precision high-speed op amp product line, engineered specifically for applications demanding wide bandwidth, low power, and robust channel matching - including test equipment, communications infrastructure, and medical imaging systems.
FAQ
What supply voltages does the OPA2889IDGST support?
The OPA2889IDGST operates from ±1.3V to ±6V dual supplies or +2.6V to +12V single supply. At ±5V, it delivers 60MHz bandwidth and ±4V output swing; at +5V single supply, bandwidth reduces to 50MHz with 1V–4V output range. Minimum operating voltage is +2.6V, ensuring compatibility with modern low-voltage systems.
Does the OPA2889IDGST require external compensation for unity-gain stability?
No - the OPA2889IDGST is internally compensated and unity-gain stable across its full operating temperature range (–40°C to +85°C). It achieves >115MHz small-signal bandwidth at G = +1V/V without external components, simplifying PCB layout and reducing bill-of-materials cost compared to decompensated alternatives.
How does the disable function work on the OPA2889IDGST?
The OPA2889IDGST features independent active-low disable pins (DIS A and DIS B) on pins 7 and 9. Pulling either pin below 0.85V places that channel into power-down mode, reducing supply current to ≤55µA/ch and placing the output in high-impedance state. Enable time is 200ns; disable time is 70µs - verified per TI SBOS373B.
What is the maximum capacitive load the OPA2889IDGST can drive stably?
The OPA2889IDGST remains stable driving up to 100pF capacitive load when used with the recommended series resistor (RS = 750Ω) as shown in TI Figure 15. Without RS, stability degrades above ~22pF. For video or cable driving, TI recommends 350Ω series termination into 75Ω lines to maintain 0.04° differential phase accuracy.
Is the OPA2889IDGST pin-compatible with other devices in the OPA28xx family?
The OPA2889IDGST in MSOP-10 (DGS) package shares identical pinout with OPA2890IDGST and OPA2691IDGST, enabling drop-in replacement for evaluation. However, functional differences - such as unity-gain stability (OPA2889/2890) versus current-feedback architecture (OPA2691) - require circuit validation before substitution in production designs.
OPA2889IDGST 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
OPA2889IDGST FAQ
1.How can I place an order for OPA2889IDGST through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2889IDGST 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 OPA2889IDGST reliable?
The price and inventory of OPA2889IDGST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2889IDGST is usually 5 days.
3.What payment methods are accepted for OPA2889IDGST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2889IDGST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2889IDGST?
OPA2889IDGST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2889IDGST 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 OPA2889IDGST?
For technical support, including OPA2889IDGST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2889IDGST requirements.
6.How does Aetrix verify that OPA2889IDGST is sourced from the original manufacturer or authorized distributors?
All OPA2889IDGST 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 OPA2889IDGST meets industry standards.
7.What is the process for return or replacement of OPA2889IDGST?
All OPA2889IDGST units undergo pre-shipment inspection (PSI). If there is an issue with OPA2889IDGST, 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 OPA2889IDGST part is unused and in its original packaging.
Return procedure for OPA2889IDGST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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