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Texas Instruments OPA690IDBVTG4
- Part No.:
- OPA690IDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA690IDBVTG4.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,515
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Product details
Overview
OPA690IDBVTG4 from Texas Instruments is a wideband, voltage-feedback operational amplifier with disable control, unity-gain stable at 535MHz (G = 1V/V), delivering 215mA output current and 1900V/µs slew rate into 100Ω, with low 4.6nV/√Hz input voltage noise - ideal for high-speed ADC buffer and transimpedance amplifier applications in portable instrumentation.
For engineers reviewing the OPA690IDBVTG4 datasheet, OPA690IDBVTG4 pinout, OPA690IDBVTG4 application, or OPA690IDBVTG4 equivalent, this page provides verified package mapping (SOT-23-6), disable timing (40ns enable / 600ns disable), output swing (±3.85V @ RL=100Ω), harmonic distortion (–85dBc HD2 @ 5MHz), and thermal metrics (RθJA = 171.6°C/W) critical for fast-sampling system design.
Technical Context
The OPA690IDBVTG4 employs a bipolar-input, voltage-feedback architecture optimized for unity-gain stability and high full-power bandwidth. Its novel output stage enables ±215mA sourcing/sinking with minimal headroom, while the disable pin (DIS) controls power-down to <200µA with 73dB off-isolation and 8pF disabled-state output capacitance.
It achieves 13ns 0.02% settling time and 225MHz large-signal bandwidth (VO = 2VPP) under ±5V supply, with CMIR of ±3.4V and PSRR of 86dB - supporting precision DC-coupled signal chains in high-frequency active filters and video line drivers where gain flatness and transient fidelity are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (G=1) | 535MHz - supports >200MSps sampling without gain peaking or phase margin loss |
| Slew rate | 1900V/µs - enables clean 4-V step response in ≤2.3ns for fast pulse amplification |
| Output current | ±215mA - drives 100Ω loads directly without external buffers in xDSL line drivers |
| Input voltage noise | 4.6nV/√Hz - preserves SNR in low-level signal conditioning for imaging channels |
| Disable current | 100µA - reduces system standby power in battery-powered portable instruments |
| Supply range | 5V to 12V - operates from single +5V or dual ±5V rails, compatible with LDO-based power domains |
| Settling time (0.02%) | 13ns - meets timing budget for 12-bit+ ADC drivers with <1LSB error |
Pinout & Package
OPA690IDBVTG4 is packaged in a 6-pin SOT-23 (DBV) with 3mm × 3mm footprint and exposed pad for thermal enhancement. Pin 1 is Output; Pin 2 is –VS; Pin 3 is Noninverting Input; Pin 4 is Inverting Input; Pin 5 is DIS; Pin 6 is +VS. Pins 1–6 are electrically functional; no NC pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Output) | Amplifier output node | Delivers ±215mA into 100Ω; high-impedance when DIS = low |
| 2 (–VS) | Negative supply rail | Accepts 0V (single-supply) or –5V (dual-supply); connects to ground or negative LDO |
| 3 (IN+) | Noninverting input | DC-coupled input with ±3.4V common-mode range; 6MΩ || 0.1pF impedance |
| 4 (IN–) | Inverting input | Feedback node for stable G ≥ 1 configurations; matched to IN+ for CMRR >60dB |
| 5 (DIS) | Disable control input | Active-low logic interface: <2.3V disables, >3.3V enables; 130µA max input bias |
| 6 (+VS) | Positive supply rail | Accepts +5V to +12V; PSRR = 86dB ensures immunity to supply ripple |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable wideband operation | 535MHz small-signal BW at G = 1V/V eliminates need for external compensation in unity-gain buffers |
| High-current output stage | ±215mA drive capability supports direct termination into 100Ω video or xDSL lines without external FETs |
| Fast enable/disable control | 40ns enable and 600ns disable times allow dynamic power gating in multi-channel TIA systems |
| Low-noise bipolar input | 4.6nV/√Hz input voltage noise and 1.7pA/√Hz current noise optimize SNR in photodiode transimpedance stages |
| Thermally robust SOT-23 | RθJA = 171.6°C/W enables 150mW dissipation at TA = 85°C without heatsink in space-constrained PCBs |
Applications
| ADC Buffers | Transimpedance Amplifiers |
|---|---|
Use Scenario: Driving the input of a 12-bit, 100MSPS pipeline ADC in medical ultrasound front-end. IC Role / Device Role / Timing Role: High-fidelity, low-glitch buffer isolating ADC sample-and-hold from source impedance variations. Use Value: 13ns 0.02% settling ensures <1LSB error at full-scale transitions; 1900V/µs slew prevents slewing-induced distortion. | Use Scenario: Converting photocurrent from a 1GHz-bandwidth avalanche photodiode in optical time-of-flight sensing. IC Role / Device Role / Timing Role: Low-noise, high-speed transimpedance amplifier with programmable gain via feedback resistor. Use Value: 4.6nV/√Hz input voltage noise minimizes total integrated noise; 225MHz large-signal BW preserves pulse fidelity. |
| Portable Instruments | Video Line Drivers |
Use Scenario: Signal conditioning stage in handheld spectrum analyzer with battery-operated analog front-end. IC Role / Device Role / Timing Role: Low-quiescent-current (6.1mA) amplifier enabling >8-hour runtime; DIS pin enables channel shutdown during idle. Use Value: 100µA disable current extends battery life; ±3.85V output swing maintains dynamic range on single +5V rail. | Use Scenario: Driving 75Ω coaxial video cable in broadcast-grade SDI transmitter output stage. IC Role / Device Role / Timing Role: High-current, low-distortion line driver meeting SMPTE 259M rise/fall time and jitter specs. Use Value: –85dBc HD2 at 5MHz ensures compliance with EIA-770.1 harmonic limits; 215mA output sustains 1VPP into 75Ω. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA695IDBVT | Current-feedback architecture; 4300V/µs slew rate but not unity-gain stable; higher 1.8nV/√Hz noise floor | Better for fixed-gain >5V/V applications requiring extreme slew; unsuitable for G=1 ADC buffers | Select OPA690IDBVTG4 when unity-gain stability, low noise, and disable control are mandatory |
| LMH6629MF/NOPB | Bipolar-input VFA; 2.5GHz GBW but only 100mA output; no disable pin; 1.9nV/√Hz noise | Preferred for ultra-wideband preamp stages where current drive is secondary to noise performance | Choose OPA690IDBVTG4 when >200mA output and integrated disable are required in same package |
Compared with OPA695IDBVT and LMH6629MF/NOPB, the OPA690IDBVTG4 uniquely combines unity-gain stability, 215mA drive, disable functionality, and 4.6nV/√Hz noise in a 6-pin SOT-23 - making it the only drop-in solution for portable, high-channel-count ADC buffer and TIA designs demanding both speed and power efficiency.
Availability
OPA690IDBVTG4 is available at Aetrix Electronics and suitable for high-speed imaging channels, ADC buffers, and portable instruments requiring stable component supply across industrial temperature range (–40°C to +85°C) and long-term production continuity.
Supply support for OPA690IDBVTG4 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 over 90 years of innovation in high-performance signal chain solutions.
The OPA690IDBVTG4 belongs to TI's high-speed voltage-feedback op amp product line, engineered specifically for applications demanding unity-gain stability, high output current, and fast enable/disable control in compact SOT-23 packages.
FAQ
What is the maximum small-signal bandwidth of OPA690IDBVTG4 at unity gain?
The OPA690IDBVTG4 achieves a small-signal bandwidth of 535MHz at G = 1V/V under ±5V supply conditions, as specified in Section 6.5 of the official datasheet. This performance is measured with VO = 0.5VPP and RF = 25Ω, confirming its suitability for >200MSps sampling systems. The device remains stable without external compensation at unity gain due to its optimized internal compensation network.
Does OPA690IDBVTG4 support single-supply operation?
Yes, OPA690IDBVTG4 supports true single-supply operation from +5V to +12V, with input common-mode range extending from 1.15V to 3.85V and output swing reaching 1.1V to 3.9V (at RL = 100Ω to 2.5V). Its internal architecture allows rail-to-rail input and output operation within these bounds, enabling use in +5V-only portable instrument designs without level-shifting circuitry.
What is the disable pin behavior of OPA690IDBVTG4?
When the DIS pin of OPA690IDBVTG4 is pulled low (<2.3V), the amplifier enters power-down mode with supply current reduced to ≤200µA and output placed in high-impedance state. Enable occurs when DIS rises above 3.3V, with 40ns typical enable time and 73dB off-isolation at 5MHz. The DIS pin draws ≤130µA bias current and requires no external pull-up for normal operation.
How does OPA690IDBVTG4 perform in transimpedance amplifier configurations?
OPA690IDBVTG4 excels in transimpedance amplifier (TIA) roles due to its 4.6nV/√Hz input voltage noise, 1.7pA/√Hz input current noise, and 225MHz large-signal bandwidth. When paired with a 1kΩ feedback resistor, it delivers >100MHz closed-loop bandwidth with <0.1dB gain flatness - validated in TI's SBOS223H application examples for photodiode and LiDAR front-ends.
What thermal considerations apply to OPA690IDBVTG4 in SOT-23 package?
OPA690IDBVTG4 in DBV (SOT-23-6) package has RθJA = 171.6°C/W and RθJB = 85.1°C/W. At 6.1mA quiescent current and 215mA peak output, junction temperature rise must be calculated using actual power dissipation and board copper area. For continuous 150mW operation at TA = 85°C, minimum 2oz copper with 250mm² thermal pad is recommended to maintain TJ <125°C per TI's thermal guidelines.
OPA690IDBVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1800V/µs
- Gain Bandwidth Product:
- 300 MHz
- -3db Bandwidth:
- 500 MHz
- Current - Input Bias:
- 3 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 5.5mA
- Current - Output / Channel:
- 190 mA
- Voltage - Supply Span (Min):
- 5 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
OPA690IDBVTG4 FAQ
1.How can I place an order for OPA690IDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA690IDBVTG4 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 OPA690IDBVTG4 reliable?
The price and inventory of OPA690IDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA690IDBVTG4 is usually 5 days.
3.What payment methods are accepted for OPA690IDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA690IDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA690IDBVTG4?
OPA690IDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA690IDBVTG4 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 OPA690IDBVTG4?
For technical support, including OPA690IDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA690IDBVTG4 requirements.
6.How does Aetrix verify that OPA690IDBVTG4 is sourced from the original manufacturer or authorized distributors?
All OPA690IDBVTG4 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 OPA690IDBVTG4 meets industry standards.
7.What is the process for return or replacement of OPA690IDBVTG4?
All OPA690IDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA690IDBVTG4, 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 OPA690IDBVTG4 part is unused and in its original packaging.
Return procedure for OPA690IDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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