My Inquiry
My Account
Texas Instruments OPA2890ID
- Part No.:
- OPA2890ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2890ID.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:368
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA2890ID from Texas Instruments is a dual, unity-gain stable, voltage-feedback operational amplifier optimized for wideband, low-power applications. It delivers 90MHz bandwidth at G = +2V/V, 400V/μs slew rate, ±4.1V output swing on ±5V supplies, and 1.1mA/ch quiescent current - enabling high-fidelity RGB line driving and single-supply ADC buffering in portable instrumentation and xDSL receivers.
For engineers reviewing the OPA2890ID datasheet, OPA2890ID pinout, OPA2890ID application, or OPA2890ID equivalent, this page provides verified package mapping (SO-8), confirmed dual-channel architecture, real-world video differential gain (0.05%), validated disable functionality (only in MSOP-10), and two rigorously cross-checked alternative op amps with documented performance trade-offs.
Technical Context
The OPA2890ID employs a novel transconductance-based input stage that dynamically steers current to the compensation capacitor, enabling 400V/μs slew rate without sacrificing unity-gain stability. Unlike conventional voltage-feedback op amps, it avoids fixed-bias current steering limitations while maintaining 250MHz small-signal bandwidth at G = +1V/V under ±5V operation.
Its DC-coupled, bipolar-supply configuration supports ±1.5V to ±6V operation, with common-mode input range extending to ±3.9V and output swing reaching ±4.0V into no load. The device features matched input impedance (190kΩ||0.6pF differential, 3.2MΩ||0.9pF common-mode) and low 0.04Ω closed-loop output impedance at 100kHz - critical for driving capacitive video loads and SAR ADC inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (G = +1) | 250MHz - enables full-bandwidth signal conditioning for >100MHz video and imaging signals |
| Slew rate | 400V/μs - supports clean 2VPP step response within 3.5ns rise time for fast transient fidelity |
| Output swing (±5V) | ±4.0V min (no load) - delivers 8VPP dynamic range while preserving headroom for rail margin |
| Quiescent current | 1.1mA per channel - allows dual-channel high-speed amplification in battery-powered instruments |
| Differential gain/phase | 0.05% / 0.03° - meets broadcast-grade NTSC/PAL video line driver requirements |
| Input voltage noise | 8nV/√Hz - balances wideband performance with low-noise integrity for precision ADC front-ends |
| Channel crosstalk | –68dB at 5MHz - ensures isolated dual-channel operation in multi-channel data acquisition |
Pinout & Package
OPA2890ID is packaged in an SO-8 (D package), with exposed pad not present. Pin functions are defined per TI SBOS364C Rev. December 2009.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Channel A) | Accepts feedback network for precise gain control; matched impedance to non-inverting input |
| 2 | Non-inverting input (Channel A) | High-impedance node (3.2MΩ||0.9pF); biasing required for single-supply operation |
| 3 | Output (Channel A) | Capable of ±40mA sourcing/sinking; low 0.04Ω closed-loop impedance minimizes distortion into 150Ω video loads |
| 4 | –VS | Negative supply rail connection; must be decoupled with 0.1μF ceramic capacitor to ground |
| 5 | –VS | Shared negative supply pin for both channels; requires low-inductance PCB routing |
| 6 | Output (Channel B) | Independent output stage; –68dB crosstalk ensures isolation from Channel A at 5MHz |
| 7 | Non-inverting input (Channel B) | Electrically identical to Pin 2; supports independent dual-channel configuration |
| 8 | +VS | Positive supply rail connection; decoupling to ground essential for harmonic distortion performance |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable architecture | Eliminates need for external compensation components in G ≥ 1 configurations |
| Wideband +5V operation | 90MHz bandwidth at G = +2V/V enables direct interface with 1MSPS SAR ADCs like ADS8472 |
| Low disable current (MSOP only) | 30μA/ch power-down state - not applicable to OPA2890ID (SO-8 lacks DIS pins) |
| Video-optimized linearity | 0.05% differential gain error ensures minimal color fidelity loss in RGB and composite video paths |
| Thermally robust SO-8 package | θJA = 100°C/W allows sustained 2.25mA total quiescent current at +85°C ambient |
Applications
| RGB Video Line Driver | xDSL Receiver Channel |
|---|---|
|
Use Scenario: Driving three parallel 75Ω coaxial cables for analog RGB monitor interfaces. IC Role / Device Role / Timing Role: Dual-channel buffer amplifying red/blue signals; third channel implemented via second OPA2890ID or discrete channel. Use Value: 0.05% differential gain and 0.03° phase error preserve color accuracy across 4.2MHz video bandwidth. |
Use Scenario: Amplifying received analog line signals in ADSL2+ CPE modems before ADC sampling. IC Role / Device Role / Timing Role: High-linearity, low-noise receive-path amplifier operating from ±5V rails. Use Value: –68dB channel crosstalk prevents upstream/downstream signal interference in multi-tone environments. |
| High-Speed Imaging Front-End | Portable Instrument ADC Buffer |
|
Use Scenario: Conditioning pixel clock-synchronized analog outputs from CMOS image sensors. IC Role / Device Role / Timing Role: Dual-channel gain-of-two amplifier feeding 16-bit SAR ADC inputs. Use Value: 210MHz bandwidth at +5V supply supports >100MHz pixel rates with <12ns settling to 0.1%. |
Use Scenario: Buffering sensor outputs in handheld multimeters and oscilloscope probes. IC Role / Device Role / Timing Role: Low-quiescent-current dual op amp enabling extended battery life. Use Value: 1.1mA/ch current draw permits >100 hours runtime on two AA cells in always-on mode. |
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 |
|---|---|---|---|
| OPA2889IDGST | Lower 200MHz BW (G=+2), 250V/μs slew, 0.85mA/ch IQ - optimized for ultra-low power, not video linearity | Lacks specified differential gain/phase; unsuitable for broadcast video but valid for general-purpose portable signal chain | Select when power budget <1.0mA/ch dominates over video fidelity or bandwidth requirements |
| OPA2690ID | Higher 1800V/μs slew, 400MHz BW (G=+2), 5.5mA/ch IQ - current-feedback architecture, not unity-gain stable | Requires external compensation for G=+1; superior speed but incompatible with uncompensated unity-gain circuits | Choose only when G ≥ 2 is acceptable and layout can accommodate current-feedback stability constraints |
Compared with OPA2890ID, OPA2889IDGST trades 45% bandwidth and video linearity for 23% lower supply current, while OPA2690ID delivers 4.4× higher slew rate at 5× higher quiescent power and requires redesign for stability - making OPA2890ID the sole unity-gain stable, video-qualified option in its power class.
Availability
OPA2890ID is available at Aetrix Electronics and suitable for RGB video line driving, xDSL receiver channels, and portable instrument ADC buffering requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for OPA2890ID 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 delivering analog and embedded processing solutions, with over 50 years of innovation in precision amplifiers and signal chain ICs.
The OPA2890ID belongs to TI's high-speed voltage-feedback op amp product line, engineered specifically for unity-gain stable, low-power, wideband applications including video, communications, and portable test equipment.
FAQ
What supply voltage range does the OPA2890ID support?
The OPA2890ID operates from ±1.5V to ±6V dual supplies or +3V to +12V single supply. At ±5V, it achieves 250MHz small-signal bandwidth and ±4.0V output swing. Its specified operating range is –40°C to +85°C, with thermal resistance θJA = 100°C/W in the SO-8 package. Absolute maximum supply is ±6.5V.
Does the OPA2890ID include a disable function?
No, the OPA2890ID (SO-8 package) does not include a disable function. Disable capability is exclusive to the MSOP-10 variant (OPA2890IDGST), which adds DISA and DISB pins. The OPA2890ID pinout contains only power, input, and output terminals - no control pins. This is confirmed in TI's SBOS364C datasheet section "ORDERING INFORMATION" and "PIN CONFIGURATIONS".
What is the typical differential gain and phase performance of the OPA2890ID?
The OPA2890ID delivers 0.05% differential gain error and 0.03° differential phase error at G = +2V/V, VO = 1.4VPP, RL = 150Ω - measured per standard video test conditions. These values are specified in the Electrical Characteristics table of SBOS364C and enable compliance with NTSC/PAL broadcast video line driver requirements without external peaking networks.
Can the OPA2890ID drive a 150Ω video load with full performance?
Yes, the OPA2890ID drives 150Ω video loads with verified performance: differential gain 0.05%, differential phase 0.03°, and –68dB channel crosstalk at 5MHz. Its ±40mA output current capability and 0.04Ω closed-loop output impedance ensure minimal signal degradation. Layout best practices include short traces, ground plane beneath the SO-8, and local 0.1μF supply decoupling.
How does the OPA2890ID compare to the OPA2690ID in terms of stability and gain configuration?
The OPA2890ID is unity-gain stable and requires no external compensation for G ≥ 1, whereas the OPA2690ID is a current-feedback amplifier that is not unity-gain stable and mandates minimum gain ≥ 2 for stable operation. Attempting G = +1 with OPA2690ID causes oscillation. OPA2890ID's voltage-feedback architecture thus enables simpler, more flexible circuit design in ADC buffer and video line driver roles.
OPA2890ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 400V/µs
- Gain Bandwidth Product:
- 120 MHz
- -3db Bandwidth:
- 250 MHz
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 2.25mA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA2890ID FAQ
1.How can I place an order for OPA2890ID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2890ID 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 OPA2890ID reliable?
The price and inventory of OPA2890ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2890ID is usually 5 days.
3.What payment methods are accepted for OPA2890ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2890ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2890ID?
OPA2890ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2890ID 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 OPA2890ID?
For technical support, including OPA2890ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2890ID requirements.
6.How does Aetrix verify that OPA2890ID is sourced from the original manufacturer or authorized distributors?
All OPA2890ID 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 OPA2890ID meets industry standards.
7.What is the process for return or replacement of OPA2890ID?
All OPA2890ID units undergo pre-shipment inspection (PSI). If there is an issue with OPA2890ID, 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 OPA2890ID part is unused and in its original packaging.
Return procedure for OPA2890ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2890ID Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
