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Texas Instruments OPA695IDBVTG4
- Part No.:
- OPA695IDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA695IDBVTG4.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,037
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Product details
Overview
OPA695IDBVTG4 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 OPA695IDBVTG4 datasheet, OPA695IDBVTG4 pinout, OPA695IDBVTG4 application, or OPA695IDBVTG4 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 under 100Ω load.
Technical Context
The OPA695IDBVTG4 implements 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 exhibits 450kΩ||2pF impedance - critical for matching network design in RF and video line driving.
Disable functionality is implemented via a TTL/CMOS-compatible control pin (DIS) that reduces quiescent current to 160µA when pulled low, with 80ns enable time and 4µs disable time. The device operates across –40°C to +85°C with ±5V or single 5V supply, supporting both bipolar and unipolar signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 600MHz at G = +8V/V - enables direct interface with 12-bit+ ADCs sampling up to 500MSPS |
| Slew rate | 5000V/μs - supports clean 2VPP step response within 0.7ns rise time |
| Input voltage noise | 2nV/√Hz - preserves SNR in low-level signal amplification stages |
| Output current | ±140mA - drives 50Ω/75Ω coaxial lines or parallel DAC loads without external buffering |
| Supply range | ±5V to ±6V or single 5V - compatible with portable instrument power rails and mixed-signal SoC domains |
| Shutdown current | 160µA - reduces system idle power by >98% versus active mode (14mA) |
| Harmonic distortion | –65dBc HD2 / –92dBc HD3 at 10MHz, 2VPP, 100Ω - meets spectral purity requirements for IF and cable-modem upstream paths |
Pinout & Package
The OPA695IDBVTG4 uses a 6-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm, optimized for space-constrained portable instrumentation and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Output | Amplifier output node | Drives 100Ω loads to ±3.75V with <0.02Ω closed-loop output impedance at 100kHz |
| 2 - –VS | Negative supply rail | Must be decoupled to ground with ≤100nF ceramic capacitor; connects to thermal pad in DSG variants |
| 3 - +VS | Positive supply rail | Accepts 5V single supply or ±5V dual supply; PSRR of 72dB ensures immunity to supply ripple |
| 4 - Noninverting Input | High-impedance input reference | 450kΩ||2pF input impedance requires careful layout to avoid capacitive loading-induced peaking |
| 5 - DIS | Disable control input | Active-low logic input; threshold 1.7–2.3V; sinks 130µA when low; enables rapid power-state transitions |
| 6 - Inverting Input | Current-summing node | Low-impedance (~20Ω) node - sets feedback gain with external resistor; sensitive to parasitic capacitance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-high slew rate | 5000V/μs enables distortion-free reproduction of fast transient waveforms in arbitrary signal generation |
| Integrated disable control | Reduces quiescent current to 160µA with 80ns wake-up latency - ideal for battery-powered burst-mode instruments |
| Current-feedback architecture | Delivers flat frequency response up to 600MHz at G = +8V/V without gain-dependent compensation networks |
| Low input voltage noise | 2nV/√Hz at >1MHz supports high-resolution digitization of weak RF/IF signals without SNR degradation |
| Wide output voltage swing | ±4.05V into no load allows full utilization of 12-bit ADC input ranges with minimal headroom loss |
Applications
| Very Wideband ADC Drivers | Portable Instruments |
|---|---|
Use Scenario: Driving the analog input of 12-bit, 500MSPS pipeline ADCs in high-speed digitizers. IC Role / Device Role / Timing Role: Current-feedback op-amp configured as gain-of-8 buffer with matched 402Ω feedback resistor. Use Value: 600MHz bandwidth and 5000V/μs slew rate ensure <0.1% settling error on 2V step inputs within 10ns, preserving ENOB. | Use Scenario: Signal conditioning stage in handheld spectrum analyzers and portable oscilloscopes. IC Role / Device Role / Timing Role: Low-noise IF amplifier with enable/disable control synchronized to measurement trigger. Use Value: 160µA shutdown current extends battery life during idle periods; 2nV/√Hz noise maintains dynamic range below –120dBm. |
| Broadband Video Line Drivers | Arbitrary Waveform Generators |
Use Scenario: Driving 75Ω coaxial video cables in HD/3G-SDI test equipment. IC Role / Device Role / Timing Role: Unity-gain stable current-feedback amplifier with 1900MHz bandwidth and 540MHz large-signal BW. Use Value: ±4.05V output swing delivers full 1VP–P SDI signal level; –92dBc HD3 at 10MHz ensures compliance with SMPTE 424M mask. | Use Scenario: Final output stage in FPGA-based AWG delivering 200MHz+ arbitrary waveforms. IC Role / Device Role / Timing Role: High-current, low-distortion output driver with programmable disable for multi-channel synchronization. Use Value: ±140mA output current drives reactive loads directly; 0.7ns rise time preserves edge fidelity in pulse-shaped outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6703MF/NOPB | Lower slew rate (3100V/μs), higher input noise (3.3nV/√Hz), no disable pin | Lacks power-gating capability; unsuitable for battery-operated burst-mode systems | Select when disable function is unnecessary and cost sensitivity outweighs noise/speed requirements |
| THS3491DGNR | Higher supply current (22mA), wider bandwidth (1.8GHz at G=+2), no integrated disable | Requires external enable circuitry; larger 8-pin VSSOP footprint increases board area | Choose for highest bandwidth at G=+2 and where 22mA quiescent current is acceptable |
Compared with LMH6703MF/NOPB and THS3491DGNR, the OPA695IDBVTG4 uniquely combines 5000V/μs slew rate, 160µA shutdown, and SOT-23-6 packaging - making it optimal for portable, high-fidelity signal generation where size, speed, and power efficiency are jointly constrained.
Availability
OPA695IDBVTG4 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 OPA695IDBVTG4 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 expertise in high-speed op-amps and precision signal chain solutions.
The OPA695IDBVTG4 belongs to TI's Ultra-Wideband Current-Feedback Op-Amp product line, engineered specifically for high-fidelity, low-distortion signal conditioning in instrumentation, communications, and test equipment.
FAQ
What is the maximum small-signal bandwidth of the OPA695IDBVTG4 at unity gain?
The OPA695IDBVTG4 achieves 1900MHz small-signal bandwidth at G = +1V/V with ±5V supplies, as specified in the Electrical Characteristics table (Section 5.5). This bandwidth is measured at 0.5VPP output and reflects its capability as a front-end amplifier for GHz-range signal acquisition systems.
Does the OPA695IDBVTG4 support single-supply operation?
Yes, the OPA695IDBVTG4 supports single 5V operation, delivering 500MHz small-signal bandwidth at G = +8V/V (Section 5.6). Common-mode input range spans 1.6V to 3.4V, and output swings from 0.9V to 4.05V with no load - enabling use in unipolar data acquisition and portable signal sources.
How does the disable pin (DIS) function on the OPA695IDBVTG4?
The DIS pin on the OPA695IDBVTG4 is an active-low control input. When pulled low (≤2.3V), it reduces quiescent current to 160µA, with 4µs disable time and 80ns enable time. Leaving the pin open or holding it high (>3V) maintains normal 14mA operation - providing rapid, low-overhead power state control.
What is the harmonic distortion performance of the OPA695IDBVTG4 at 10MHz?
At 10MHz, 2VPP, and 100Ω load, the OPA695IDBVTG4 delivers –65dBc second-harmonic distortion (HD2) and –92dBc third-harmonic distortion (HD3) under ±5V supply conditions (Section 5.5). This performance meets stringent spectral purity requirements for IF amplification and cable-modem upstream transmission.
Is the OPA695IDBVTG4 pin-compatible with other packages in the OPA695 family?
No - the OPA695IDBVTG4 uses the 6-pin SOT-23 (DBV) package, while other variants use 8-pin SOIC (D), VSSOP (DGK), or WSON (DSG) packages. Pin count, layout, and terminal assignments differ significantly; the DBV variant has no NC pins and integrates DIS on pin 5, unlike 8-pin versions where DIS is on pin 8.
OPA695IDBVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
OPA695IDBVTG4 FAQ
1.How can I place an order for OPA695IDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA695IDBVTG4 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 OPA695IDBVTG4 reliable?
The price and inventory of OPA695IDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA695IDBVTG4 is usually 5 days.
3.What payment methods are accepted for OPA695IDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA695IDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA695IDBVTG4?
OPA695IDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA695IDBVTG4 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 OPA695IDBVTG4?
For technical support, including OPA695IDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA695IDBVTG4 requirements.
6.How does Aetrix verify that OPA695IDBVTG4 is sourced from the original manufacturer or authorized distributors?
All OPA695IDBVTG4 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 OPA695IDBVTG4 meets industry standards.
7.What is the process for return or replacement of OPA695IDBVTG4?
All OPA695IDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA695IDBVTG4, 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 OPA695IDBVTG4 part is unused and in its original packaging.
Return procedure for OPA695IDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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