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Texas Instruments OPA890IDBVR
- Part No.:
- OPA890IDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA890IDBVR.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:11,985
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Product details
Overview
OPA890IDBVR from Texas Instruments is a unity-gain stable, wideband voltage-feedback operational amplifier in SOT-23-6 package, delivering 105MHz small-signal bandwidth (G = +2V/V, +5V supply), 350V/μs slew rate, ±4V output swing, and 1.06mA quiescent current. It features an active disable pin enabling <65μA power-down current and high-impedance output state, making it suitable for portable instrumentation and ADC input buffering.
For engineers reviewing the OPA890IDBVR datasheet, OPA890IDBVR pinout, OPA890IDBVR application, or OPA890IDBVR equivalent, key selection criteria include single-supply operation down to +3V, differential gain error of 0.06%, enable/disable timing (200ns enable / 7ns disable), and thermal resistance of 110°C/W in SOT-23-6.
Technical Context
The OPA890IDBVR uses a novel transconductance-based input stage that delivers high slew rate (350V/μs at +5V) without fixed-bias current steering, enabling low quiescent current (1.06mA) while maintaining unity-gain stability. Its architecture avoids traditional compensation limitations, supporting full-power bandwidth >130MHz with 2VPP output swing on +5V supply.
Disable functionality is implemented via TTL-compatible control: VDIS ≤ 0.8V (max) forces power-down with 4pF output capacitance and 70dB off-isolation at 5MHz; VDIS ≥ 3.0V (min) enables normal operation. Input common-mode range extends to within 1.4V of supplies under +5V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 105MHz at G = +2V/V, +5V supply - supports high-fidelity video and imaging signal paths up to 1080p60. |
| Slew Rate | 350V/μs at +5V - enables clean 2VPP step response with <3.8ns rise/fall time for fast transient signals. |
| Output Voltage Swing | +1.0V to +3.9V (no load) on +5V supply - provides 2.9VPP usable swing with only 1.1V headroom to rails. |
| Quiescent Current | 1.06mA max at +5V - enables battery-powered designs with >100-hour runtime using 100mAh coin cell. |
| Disable Current | 18μA typical at VDIS = 0V - reduces system standby power by >98% versus active mode. |
| Input Voltage Noise | 8.1nV/√Hz above 100kHz - maintains SNR >72dB for 1MHz signals with 100Ω source impedance. |
| Harmonic Distortion | –85dBc 2nd-harmonic at 1MHz, 2VPP, RL = 200Ω - meets broadcast video line driver THD requirements. |
Pinout & Package
SOT-23-6 package: 2.9mm × 1.6mm × 1.15mm body, 0.95mm pitch, gull-wing leads, JEDEC MO-178AC compliant. Thermal resistance θJA = 110°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN–) | Inverting Input | Differential input node; requires matched trace length and impedance for optimal CMRR (>55dB). |
| 2 (IN+) | Noninverting Input | High-impedance input (3.2MΩ||0.9pF); series 50Ω resistor recommended for RF stability. |
| 3 (OUT) | Amplifier Output | Capable of ±35mA drive into 100Ω; 0.04Ω closed-loop output impedance ensures minimal gain loss. |
| 4 (GND) | Analog Ground | Must connect directly to low-impedance ground plane; separates bias current return from power ground. |
| 5 (DIS) | Disable Control | TTL-compatible digital input; pull HIGH (>3.0V) for operation, LOW (<0.8V) for power-down. |
| 6 (+VS) | Positive Supply | Accepts +3V to +12V; decoupling with 0.1μF ceramic capacitor required within 2mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable architecture | Eliminates external compensation components for G ≥ +1 configurations, reducing BOM count and layout area. |
| Single-supply operation from +3V | Enables direct interface with 3.3V logic and microcontrollers without level-shifting circuitry. |
| 7ns disable time / 200ns enable time | Supports burst-mode signal acquisition in portable test equipment with sub-10ns channel switching. |
| 0.06% differential gain error | Meets SMPTE 253M analog video line driver accuracy requirements for RGB and component video. |
| 110°C/W thermal resistance (SOT-23-6) | Allows continuous 35mA output current at +85°C ambient without derating in compact PCB layouts. |
Applications
| Video Line Driving | xDSL Line Drivers/Receivers |
|---|---|
Use Scenario: Driving 75Ω coaxial cable for RGB or YPbPr analog video signals in portable media players. IC Role / Device Role / Timing Role: Buffer and level-shift video DAC outputs to maintain signal integrity over 10m cable runs. Use Value: 0.06% differential gain and 0.04° phase error preserve color fidelity; 105MHz bandwidth supports 1080p60 pixel rates. | Use Scenario: Transmitting upstream/downstream DSL signals across twisted-pair telephone lines in CPE modems. IC Role / Device Role / Timing Role: High-linearity line driver amplifying ADSL2+ transmit signals with minimal group delay variation. Use Value: –85dBc 2nd-harmonic distortion at 1MHz ensures compliance with ITU-T G.992.5 spectral mask limits. |
| ADC Buffers | Portable Instruments |
Use Scenario: Driving SAR or pipeline ADC inputs in handheld multimeters and oscilloscope front-ends. IC Role / Device Role / Timing Role: Low-noise, fast-settling buffer isolating precision reference from dynamic ADC input capacitance. Use Value: 12ns 0.1% settling time and 8.1nV/√Hz noise enable 14-bit ENOB at 1MSPS sampling rates. | Use Scenario: Signal conditioning in battery-powered gas analyzers and portable ECG monitors. IC Role / Device Role / Timing Role: Low-quiescent-current amplifier enabling multi-channel sensor signal amplification with <10μA standby draw. Use Value: 1.06mA active current and 18μA disable current extend AA battery life to >12 months in intermittent-use devices. |
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 |
|---|---|---|---|
| OPA2890IDGKR | Dual-channel, SO-8 package, 115MHz bandwidth (±5V), 500V/μs slew rate, no disable pin. | Requires dual-amplifier topology; lacks power-gating capability for ultra-low-power systems. | Select when two matched channels are needed and disable function is unnecessary. |
| LMH6629MA/NOPB | Single-channel, SO-8, 1.5GHz GBW, 940V/μs slew rate, 12.5mA IQ, no disable. | Higher speed and noise (1.9nV/√Hz) but 12× higher supply current; not unity-gain stable. | Select for >500MHz small-signal bandwidth where power budget allows. |
Compared with OPA2890IDGKR and LMH6629MA/NOPB, the OPA890IDBVR uniquely balances 105MHz bandwidth, 1.06mA quiescent current, and integrated disable control in a space-constrained SOT-23-6 package-enabling portable, battery-sensitive designs without sacrificing video-grade linearity.
Availability
OPA890IDBVR is available at Aetrix Electronics and suitable for video line driving, xDSL line drivers/receivers, and portable instrumentation requiring stable component supply with guaranteed long-term availability.
Supply support for OPA890IDBVR 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 company headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with over 90,000 products and 30+ fabrication sites.
The OPA890 belongs to TI's high-speed precision op amp product line, designed specifically for applications demanding wide bandwidth, low power, and rail-aware operation in portable and video infrastructure systems.
FAQ
What is the minimum operating voltage for the OPA890IDBVR?
The OPA890IDBVR operates down to +3V single supply or ±1.5V dual supply. At +3V, it maintains functional performance including 60MHz small-signal bandwidth and 150V/μs slew rate, though output swing reduces to +0.8V to +2.2V. This enables direct interface with 3.3V microcontrollers and low-voltage sensors without level-shifting circuitry.
How does the disable pin on the OPA890IDBVR function electrically?
The OPA890IDBVR disable pin (Pin 5) is TTL-compatible: pulling it below 0.8V (max) disables the amplifier, reducing supply current to 18μA typical and placing the output in high-impedance state with 4pF capacitance. Pulling it above 3.0V (min) enables normal operation. The pin draws ≤40μA bias current and has 7ns disable / 200ns enable timing, supporting burst-mode power gating in portable instruments.
Can the OPA890IDBVR drive a 50Ω load effectively?
Yes, the OPA890IDBVR delivers ±35mA output current into 100Ω loads and maintains ±25mA into 100Ω at +85°C. For 50Ω loads, it sustains >2VPP swing with <1% gain error due to its 0.04Ω closed-loop output impedance. Layout best practices include short traces, ground vias near the output pin, and series 10Ω damping resistors to suppress potential peaking at 200MHz.
What is the input common-mode voltage range of the OPA890IDBVR on a +5V supply?
On a +5V supply, the OPA890IDBVR input common-mode range is +1.0V to +3.6V (min/max over temperature), meaning it accepts signals within 1.0V of the negative rail and 1.4V of the positive rail. This allows direct connection to 1.8V–3.3V logic outputs and DACs referenced to mid-supply, provided input biasing networks respect these limits to avoid CMRR degradation.
Does the OPA890IDBVR require external compensation for unity-gain stability?
No, the OPA890IDBVR is internally compensated for unity-gain stability across its full operating range (–40°C to +85°C, +3V to +12V). It achieves this without external components, supporting G = +1, +2, +5, and +10 configurations directly. Stability is verified per Figure 30–35 in SBOS369B, showing flat frequency response and <2dB peaking at G = +1V/V with 100pF capacitive load.
OPA890IDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
OPA890IDBVR FAQ
1.How can I place an order for OPA890IDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA890IDBVR 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 OPA890IDBVR reliable?
The price and inventory of OPA890IDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA890IDBVR is usually 5 days.
3.What payment methods are accepted for OPA890IDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA890IDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA890IDBVR?
OPA890IDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA890IDBVR 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 OPA890IDBVR?
For technical support, including OPA890IDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA890IDBVR requirements.
6.How does Aetrix verify that OPA890IDBVR is sourced from the original manufacturer or authorized distributors?
All OPA890IDBVR 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 OPA890IDBVR meets industry standards.
7.What is the process for return or replacement of OPA890IDBVR?
All OPA890IDBVR units undergo pre-shipment inspection (PSI). If there is an issue with OPA890IDBVR, 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 OPA890IDBVR part is unused and in its original packaging.
Return procedure for OPA890IDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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