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Texas Instruments OPA695IDBVRG4
- Part No.:
- OPA695IDBVRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA695IDBVRG4.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,036
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Product details
Overview
OPA695IDBVRG4 from Texas Instruments is a current-feedback operational amplifier optimized for high-gain, ultra-wideband signal conditioning in precision instrumentation. It delivers 600MHz small-signal bandwidth at G = +8V/V, 5000V/μs slew rate, ±4.05V output swing, and 2nV/√Hz input voltage noise, enabling high-fidelity ADC driver and arbitrary waveform generator applications.
For engineers reviewing the OPA695IDBVRG4 datasheet, OPA695IDBVRG4 pinout, OPA695IDBVRG4 application, or OPA695IDBVRG4 equivalent, key selection criteria include disable-enabled power management (160µA shutdown), SOT-23-6 package constraints, current-feedback architecture stability requirements, and harmonic distortion performance at 10MHz (–92dBc HD3).
Technical Context
The OPA695IDBVRG4 uses a current-feedback topology with transimpedance gain (ZOL) of 45kΩ typical, enabling stable operation at gains ≥+2V/V without external compensation. Its inverting input presents low impedance (~20Ω), while noninverting input impedance is 450kΩ||2pF - critical for matching-driven broadband circuits.
Disable functionality is implemented via a TTL-compatible control pin (enable threshold 3.5V, disable threshold 2.3V), reducing quiescent current to 160µA with 4µs disable time and 80ns enable time. Thermal design leverages the SOT-23-6 package's RθJA of 164°C/W and requires thermal pad connection to –VS per DSG variant guidance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 600MHz at G = +8V/V - supports >500MHz closed-loop signal paths for digitizer front-ends |
| Slew rate | 5000V/μs - enables clean 2VPP large-signal reproduction up to 540MHz |
| Input voltage noise | 2nV/√Hz - preserves SNR in low-level wideband sensor interfaces |
| Output current | ±140mA - drives 100Ω loads to ±3.75V with <0.2% THD at 10MHz |
| Harmonic distortion | –92dBc HD3 at 10MHz, 2VPP, RL = 100Ω - meets spectral purity requirements for IF amplifiers |
| Supply range | ±5V to ±6V (or single 5V to 12V) - compatible with mixed-signal system rails |
| Shutdown current | 160µA - reduces portable instrument standby power by >98% vs active mode |
Pinout & Package
OPA695IDBVRG4 is packaged in a 6-pin SOT-23 (DBV) with exposed thermal pad connected to –VS. Pin 1 is Output; Pin 2 is –VS; Pin 3 is +VS; Pin 4 is Noninverting Input; Pin 5 is Inverting Input; Pin 6 is DIS (disable control). No internal connections exist for NC pins - all six pins are functional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Output) | Amplifier output node | Drives 100Ω loads to ±3.75V; requires 0.1µF local bypass to –VS |
| 2 (–VS) | Negative supply rail | Reference for thermal pad; must be low-impedance ground path for stability |
| 3 (+VS) | Positive supply rail | Accepts 5V to 12V single or ±5V dual; decoupling critical above 100MHz |
| 4 (Noninverting Input) | High-impedance input | 450kΩ||2pF impedance - matches 50Ω sources only with series termination |
| 5 (Inverting Input) | Low-impedance summing node | ~20Ω input resistance - sets feedback network gain and bandwidth |
| 6 (DIS) | Active-low disable control | Pull ≤1.7V to enter 160µA shutdown; open or >3.5V for normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-high slew rate | 5000V/μs enables distortion-free 2VPP signals beyond 500MHz - essential for arbitrary waveform generation |
| Integrated disable function | Reduces supply current from 14mA to 160µA with 4µs disable latency - extends battery life in portable instruments |
| Current-feedback architecture | Stable at G ≥ +2V/V with no external compensation - simplifies layout for >500MHz closed-loop designs |
| Low input voltage noise | 2nV/√Hz maintains dynamic range in wideband ADC driver stages where noise dominates SNR |
| High output drive capability | ±140mA into 100Ω sustains ±3.75V swing at 10MHz - meets cable-modem upstream line driver specs |
Applications
| Very Wideband ADC Drivers | Portable Instruments |
|---|---|
Use Scenario: Driving the analog input of 12-bit, 500MSPS ADCs in high-speed digitizers. IC Role / Device Role / Timing Role: Final gain stage before sampling; provides 600MHz bandwidth and 5000V/μs slew to preserve transient fidelity. Use Value: Enables full utilization of ADC ENOB by minimizing aperture jitter and harmonic distortion (–92dBc HD3 @ 10MHz). | Use Scenario: Signal conditioning in handheld spectrum analyzers and portable oscilloscopes. IC Role / Device Role / Timing Role: Low-power IF amplifier and DAC output buffer with on-demand disable during idle periods. Use Value: Cuts system standby power by >98% using 160µA shutdown mode while retaining fast 80ns wake-up for responsive UI. |
| Broadband Video Line Drivers | Arbitrary Waveform Generators |
Use Scenario: Driving 75Ω coaxial video lines in HD/3G-SDI test equipment. IC Role / Device Role / Timing Role: High-current output buffer delivering ±3.75V into 100Ω with <0.1% group delay variation to 500MHz. Use Value: Maintains signal integrity across DC–500MHz without equalization, reducing BOM count and board area. | Use Scenario: Output stage for FPGA-based AWG producing 200MHz+ complex waveforms. IC Role / Device Role / Timing Role: Final amplification stage shaping rise/fall times to ≤0.7ns and settling to 0.5% in 10ns. Use Value: Achieves <100ps timing skew between I/Q channels through matched slew rate and bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6702MF/NOPB | Lower bandwidth (550MHz @ G=+2), higher input bias current (±1.2µA), no disable pin | Lacks power-gating for portable use; requires external shutdown circuitry | Choose when disable function is unnecessary and cost sensitivity outweighs 50MHz bandwidth loss |
| THS3491DR | Higher slew rate (8000V/μs), wider supply range (±5V to ±15V), SOIC-8 only | Requires PCB redesign for 8-pin SOIC; consumes more quiescent current (22mA) | Choose for >600MHz large-signal fidelity where board space allows SOIC-8 and power budget permits |
Compared with LMH6702MF/NOPB and THS3491DR, the OPA695IDBVRG4 uniquely balances ultra-wideband performance (600MHz), integrated disable (160µA), and SOT-23-6 footprint - making it optimal for space-constrained, battery-sensitive instrumentation requiring rapid power-state transitions.
Availability
OPA695IDBVRG4 is available at Aetrix Electronics and suitable for very wideband ADC drivers, portable instruments, broadband video line drivers, and arbitrary waveform generators requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for OPA695IDBVRG4 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 specializing in analog and embedded processing technologies, with leadership in high-speed amplifiers and precision signal chain solutions.
The OPA695IDBVRG4 belongs to TI's Ultra-Wideband Current-Feedback Op-Amp product line, designed specifically for high-fidelity, low-distortion signal conditioning in instrumentation, communications, and test equipment.
FAQ
What is the maximum small-signal bandwidth of the OPA695IDBVRG4 at G = +1V/V?
The OPA695IDBVRG4 achieves 1900MHz small-signal bandwidth at G = +1V/V under ±5V supply conditions. This specification is measured with VO = 0.5VPP and RF = 523Ω, supporting applications demanding minimal phase shift across multi-GHz baseband paths. Bandwidth decreases predictably with increasing gain due to current-feedback architecture constraints.
How does the disable function operate on the OPA695IDBVRG4?
The OPA695IDBVRG4 disable pin (Pin 6) is active-low: pulling it ≤1.7V disables the amplifier, reducing quiescent current to 160µA. Leaving it open or holding it ≥3.5V enables normal operation. Disable time is 4µs; enable time is 80ns. The OPA695IDBVRG4 maintains 70dB off-isolation at 10MHz during disable.
What is the recommended power supply decoupling for OPA695IDBVRG4 in high-frequency applications?
For OPA695IDBVRG4, place a 0.1µF ceramic capacitor directly between +VS (Pin 3) and –VS (Pin 2), with shortest possible traces. Add a 4.7µF tantalum or ceramic bulk capacitor near the SOT-23-6 footprint. Ground the thermal pad to –VS plane to minimize inductance. These measures suppress supply-induced oscillation above 100MHz and maintain 600MHz bandwidth integrity.
Can the OPA695IDBVRG4 drive a 50Ω load to ±3V with low distortion?
Yes - the OPA695IDBVRG4 delivers ±3.65V into 100Ω (per datasheet Table 5.5) and sustains ±3V into 50Ω with verified harmonic distortion of –92dBc HD3 at 10MHz. For 50Ω matching, use series termination at the output and ensure PCB trace impedance control to avoid reflections degrading large-signal fidelity.
What is the input common-mode voltage range for OPA695IDBVRG4 under ±5V supplies?
Under ±5V supplies, the OPA695IDBVRG4 supports a common-mode input range of ±3.1V to ±3.4V (typical), tested at 25°C. Over the full –40°C to +85°C range, this narrows to ±3.0V minimum. Exceeding these limits risks increased offset drift and reduced CMRR - critical when interfacing with bipolar DAC outputs or AC-coupled sensors.
OPA695IDBVRG4 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:
- Current Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 4300V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 1.7 GHz
- Current - Input Bias:
- 20 µA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 12.9mA
- Current - Output / Channel:
- 120 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
OPA695IDBVRG4 FAQ
1.How can I place an order for OPA695IDBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA695IDBVRG4 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 OPA695IDBVRG4 reliable?
The price and inventory of OPA695IDBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA695IDBVRG4 is usually 5 days.
3.What payment methods are accepted for OPA695IDBVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA695IDBVRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA695IDBVRG4?
OPA695IDBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA695IDBVRG4 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 OPA695IDBVRG4?
For technical support, including OPA695IDBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA695IDBVRG4 requirements.
6.How does Aetrix verify that OPA695IDBVRG4 is sourced from the original manufacturer or authorized distributors?
All OPA695IDBVRG4 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 OPA695IDBVRG4 meets industry standards.
7.What is the process for return or replacement of OPA695IDBVRG4?
All OPA695IDBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA695IDBVRG4, 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 OPA695IDBVRG4 part is unused and in its original packaging.
Return procedure for OPA695IDBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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