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Texas Instruments OPA890IDBVTG4
- Part No.:
- OPA890IDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA890IDBVTG4.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,478
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Product details
Overview
OPA890IDBVTG4 from Texas Instruments is a unity-gain stable, voltage-feedback operational amplifier optimized for wideband, low-power single-supply operation. It delivers 105MHz small-signal bandwidth (G = +2V/V, VS = +5V), 350V/μs slew rate, ±35mA output drive, ±4V output swing (no load), and 1.06mA quiescent current - enabling high-fidelity video line driving and ADC input buffering in portable instrumentation.
For engineers reviewing the OPA890IDBVTG4 datasheet, OPA890IDBVTG4 pinout, OPA890IDBVTG4 application, or OPA890IDBVTG4 equivalent, key selection criteria include disable functionality (7μs disable time, 30μA power-down current), SOT-23-6 package thermal resistance (110°C/W), differential gain/phase performance (0.06%/0.04°), and harmonic distortion at 1MHz (–85dBc 2nd, –85dBc 3rd).
Technical Context
The OPA890IDBVTG4 employs a novel transconductance-based input stage that dynamically increases compensation capacitor charging current with input error voltage - achieving 500V/μs slew rate while maintaining only 1.1mA quiescent current. This architecture avoids fixed-bias current steering limitations of conventional voltage-feedback op amps.
Its disable control pin enables fast power gating (200ns enable, 7μs disable) with 70dB off-isolation at 5MHz and 4pF output capacitance in disabled state. Input common-mode range extends to within 1.4V of either rail under +5V supply, supporting dc-coupled signal paths with minimal headroom.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 105MHz at G = +2V/V, +5V supply - supports >100MHz video and imaging signal chains without stability compromise. |
| Slew Rate | 350V/μs (min, +5V) - enables clean 2VPP large-signal step response with 130MHz full-power bandwidth. |
| Output Drive | ±35mA (min, VO = VS/2) - drives 150Ω video loads or multiple ADC inputs without external buffers. |
| Quiescent Current | 1.06mA (typ, +5V) - enables battery-powered instruments with extended runtime and low self-heating. |
| Disable Current | 18μA (typ, +5V) - reduces system standby power by >98% versus active mode. |
| Input Voltage Noise | 8.1nV/√Hz (max, f > 100kHz) - balances wideband performance with noise-sensitive analog front-ends. |
| Differential Gain/Phase | 0.06% / 0.04° (RL = 150Ω) - meets broadcast-grade NTSC/PAL video line driver requirements. |
Pinout & Package
SOT-23-6 package (DBV) with 1.6mm × 2.9mm footprint, 0.95mm height, and 0.95mm lead pitch - suitable for space-constrained portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN–) | Inverting Input | High-impedance node for feedback network connection; matched bias current path with IN+. |
| 2 (IN+) | Noninverting Input | High-impedance node for signal source; requires 50Ω series resistor for bias current cancellation in ac-coupled configs. |
| 3 (OUT) | Amplifier Output | Class-AB output stage capable of ±35mA sourcing/sinking into 100Ω loads; high-Z when DIS = LOW. |
| 4 (DIS) | Disable Control | Active-low digital input; pulls output to high-Z and reduces supply current to <30μA when ≤0.8V. |
| 5 (–VS) | Negative Supply | Ground reference for single-supply operation (+5V); connects to system GND in +5V applications. |
| 6 (+VS) | Positive Supply | +3V to +12V input; powers internal circuitry and output stage; decoupled with 0.1μF capacitor to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-Gain Stable Wideband Operation | 220MHz small-signal bandwidth at G = +1V/V (+5V supply) - eliminates need for external compensation in most gain configurations. |
| Fast Enable/Disable Control | 200ns enable time and 7μs disable time - supports dynamic power cycling in multi-channel systems without signal disruption. |
| Low Distortion at High Frequency | –85dBc 2nd-harmonic distortion at 1MHz, 2VPP output into 200Ω - preserves signal integrity in high-speed data acquisition. |
| Rail-Compatible Input Range | Input common-mode voltage spans 1.0V to 3.6V on +5V supply - enables direct interfacing with DAC outputs and sensor bridges. |
| Optimized Single-Supply Headroom | Output swings from 1.0V to 4.0V (no load) on +5V - delivers 2VPP signal with only 1.5V margin to each rail. |
Applications
| Video Line Driving | xDSL Line Drivers/Receivers |
|---|---|
|
Use Scenario: Driving 75Ω coaxial cable in SD/HD video distribution systems with minimal group delay variation. IC Role / Device Role / Timing Role: Unity-gain buffer amplifying composite video signals with precise DC restoration and impedance matching. Use Value: 0.06% differential gain and 0.04° differential phase ensure broadcast-compliant color fidelity over 150m cable runs. |
Use Scenario: Transmitting high-frequency upstream/downstream signals in ADSL2+ and VDSL2 modems. IC Role / Device Role / Timing Role: Line driver delivering >20MHz bandwidth and >100dB SNR in hybrid coupler interfaces. Use Value: 105MHz bandwidth at G = +2V/V and –85dBc harmonic distortion maintain spectral purity across 17MHz VDSL bands. |
| ADC Input Buffers | High-Speed Imaging Channels |
|
Use Scenario: Conditioning analog sensor outputs before sampling by 10–14-bit, 10–100MSPS ADCs. IC Role / Device Role / Timing Role: Gain-of-two driver providing low-noise, low-distortion interface with matched input/output impedance. Use Value: 8.1nV/√Hz input voltage noise and 350V/μs slew rate prevent aperture jitter and code-dependent distortion in precision digitization. |
Use Scenario: Amplifying pixel-level signals from CMOS/CCD image sensors in medical endoscopes and industrial cameras. IC Role / Device Role / Timing Role: Low-latency, low-power gain block preserving transient fidelity during rapid frame readout. Use Value: 18ns settling time to 0.1% and 130MHz large-signal bandwidth support 60fps+ full-HD imaging with minimal motion blur. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-feedback op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2890IDGKT | Dual-channel version in VSSOP-8; identical AC/DC specs per channel but higher total quiescent current (2.2mA). | Required when two matched amplifiers needed in same system (e.g., differential ADC driver). | Select OPA2890IDGKT only if dual-channel integration reduces board area or improves channel matching over discrete OPA890IDBVTG4 units. |
| LMH6629MA/NOPB | Higher slew rate (1000V/μs) and bandwidth (1.5GHz), but 12mA quiescent current and no disable function. | Better suited for RF IF amplification where speed dominates power budget constraints. | Choose LMH6629MA/NOPB only when >500MHz bandwidth is mandatory and 12× higher supply current is acceptable. |
Compared with OPA2890IDGKT and LMH6629MA/NOPB, the OPA890IDBVTG4 uniquely balances 105MHz bandwidth, 350V/μs slew rate, 1.06mA quiescent current, and active disable control - making it optimal for portable, battery-sensitive, wideband analog signal conditioning where power gating and space efficiency are critical.
Availability
OPA890IDBVTG4 is available at Aetrix Electronics and suitable for video line driving, xDSL line drivers/receivers, and high-speed imaging channels requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for OPA890IDBVTG4 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 high-performance op amps and precision signal chain solutions.
The OPA890IDBVTG4 belongs to TI's high-speed voltage-feedback op amp product line, engineered specifically for low-power, wideband applications including portable instrumentation, communications infrastructure, and professional video equipment.
FAQ
What is the maximum operating voltage for the OPA890IDBVTG4?
The OPA890IDBVTG4 supports a maximum operating voltage of +12V on single-supply configurations and ±6V on dual-supply configurations. Absolute maximum ratings specify ±6.5V on power pins; operation beyond ±6V risks permanent damage and violates the device's specified operating range.
Does the OPA890IDBVTG4 require external compensation for unity-gain stability?
No, the OPA890IDBVTG4 is internally compensated for unity-gain stability. Its architecture guarantees stable operation at G = +1V/V with 220MHz bandwidth under +5V supply, eliminating the need for external compensation components in standard configurations.
How does the disable function affect output behavior in the OPA890IDBVTG4?
When the DIS pin is pulled LOW (≤0.8V), the OPA890IDBVTG4 disables its output stage, placing the OUT pin in a high-impedance state with only 4pF capacitance, while reducing supply current to ≤30μA. The output remains disconnected until DIS returns HIGH (≥3.0V), with 200ns enable time.
Can the OPA890IDBVTG4 drive a 75Ω video load while maintaining differential phase accuracy?
Yes - the OPA890IDBVTG4 achieves 0.04° differential phase and 0.06% differential gain when driving a 150Ω load (representing two parallel 75Ω cables). Its low distortion and flat frequency response up to 20MHz ensure broadcast-compliant video signal integrity.
What is the thermal resistance (θJA) of the OPA890IDBVTG4 in its SOT-23-6 package?
The OPA890IDBVTG4 in the SOT-23-6 (DBV) package has a junction-to-ambient thermal resistance (θJA) of 110°C/W, measured under standard JEDEC conditions. This value assumes a 1-inch² copper pad with two thermal vias; actual board layout significantly impacts real-world thermal performance.
OPA890IDBVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 500V/µs
- Gain Bandwidth Product:
- 130 MHz
- -3db Bandwidth:
- 260 MHz
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1.1mA
- Current - Output / Channel:
- -
- 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:
- SOT-23-6
OPA890IDBVTG4 FAQ
1.How can I place an order for OPA890IDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA890IDBVTG4 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 OPA890IDBVTG4 reliable?
The price and inventory of OPA890IDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA890IDBVTG4 is usually 5 days.
3.What payment methods are accepted for OPA890IDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA890IDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA890IDBVTG4?
OPA890IDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA890IDBVTG4 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 OPA890IDBVTG4?
For technical support, including OPA890IDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA890IDBVTG4 requirements.
6.How does Aetrix verify that OPA890IDBVTG4 is sourced from the original manufacturer or authorized distributors?
All OPA890IDBVTG4 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 OPA890IDBVTG4 meets industry standards.
7.What is the process for return or replacement of OPA890IDBVTG4?
All OPA890IDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA890IDBVTG4, 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 OPA890IDBVTG4 part is unused and in its original packaging.
Return procedure for OPA890IDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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