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Texas Instruments OPA695IDBVT
- Part No.:
- OPA695IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA695IDBVT.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,447
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Product details
Overview
OPA695IDBVT from Texas Instruments is an ultra-wideband current-feedback operational amplifier optimized for high-gain, low-distortion signal conditioning in high-speed 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 precision ADC driver and arbitrary waveform generator applications with 10MHz HD2/HD3 of –65dBc/–92dBc into 100Ω.
For engineers reviewing the OPA695IDBVT datasheet, OPA695IDBVT pinout, OPA695IDBVT application, or OPA695IDBVT equivalent, this page provides verified package mapping (SOT-23-6), disable-mode timing (80ns enable, 4μs disable), thermal performance (RθJA = 164°C/W), distortion vs. load data, and validated alternatives for portable broadband video, IF amplification, and DAC output drive.
Technical Context
The OPA695IDBVT uses a current-feedback architecture with low-impedance inverting input (20Ω) and high-impedance noninverting input (450kΩ || 2pF), enabling stable gain-setting via external feedback resistor without phase compensation. Its transimpedance open-loop gain (ZOL = 45kΩ typ.) and fast settling (10ns to 0.5%) support wideband closed-loop operation up to 1900MHz at unity gain.
Integrated disable control (DIS pin) reduces quiescent current from 14mA to 160μA while maintaining 70dB off-isolation at 10MHz and <2.5pF output capacitance in shutdown - critical for battery-powered portable instruments and time-multiplexed signal chains requiring rapid power cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (G = +8V/V) | 600MHz - supports >500Msps ADC front-end sampling with minimal group delay variation |
| Slew rate | 5000V/μs - enables full-scale 4VPP output at 540MHz large-signal bandwidth without slewing distortion |
| Input voltage noise | 2nV/√Hz - preserves SNR in low-amplitude, wideband IF amplification stages |
| Harmonic distortion (10MHz) | HD2 = –65dBc, HD3 = –92dBc @ 2VPP/100Ω - meets spectral purity requirements for cable-modem upstream drivers |
| Output current | ±140mA - drives 50Ω or 75Ω coaxial lines directly without external buffers |
| Supply range | ±5V to ±6V or single 5V to 12V - compatible with mixed-signal systems using 5V logic and ±5V analog rails |
| Disable current | 160μA - extends battery life in handheld test equipment during idle intervals |
Pinout & Package
OPA695IDBVT is housed in a 6-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm, optimized for high-density PCB layouts in portable instrumentation. Thermal pad is not present in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: Output | Amplifier output node | Drives 100Ω loads to ±3.75V with <0.02Ω closed-loop impedance at 100kHz |
| 2: –VS | Negative supply connection | Accepts –5V to –6V; ties to thermal pad in WSON variants (not applicable here) |
| 3: +VS | Positive supply connection | Accepts +5V to +12V or +5V single supply; decoupling required within 2mm |
| 4: Noninverting Input | High-impedance input reference | 450kΩ || 2pF input impedance; common-mode range ±3.1V at ±5V supplies |
| 5: DIS | Active-low disable control | Pull ≤1.7V to enter shutdown (160μA IQ); ≥3.0V for normal operation; 80ns enable time |
| 6: Inverting Input | Low-impedance current-summing node | 20Ω input resistance; requires matched feedback resistor (e.g., 402Ω for G = +8V/V) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-high slew rate | 5000V/μs ensures linear amplification of fast-rising pulses in arbitrary waveform generators without rate limiting |
| Integrated disable function | Reduces system power by >98% during standby while preserving signal path isolation (70dB @ 10MHz) |
| Low distortion at high frequency | –92dBc HD3 at 10MHz enables clean spectral reconstruction in digitizer gain stages |
| Wide supply flexibility | Operates from ±5V to ±6V or single 5V–12V, simplifying power architecture in mixed-signal portable designs |
| Thermal efficiency | RθJA = 164°C/W allows continuous 14mA operation in SOT-23 without forced airflow or heatsinking |
Applications
| Very Wideband ADC Drivers | Portable Broadband Instruments |
|---|---|
Use Scenario: Driving the analog input of a 1-GSPS pipeline ADC in a handheld spectrum analyzer. IC Role / Device Role / Timing Role: Final gain stage before ADC sampling; provides 500MHz flat bandwidth and 0.5% settling in 10ns. Use Value: Maintains ENOB >7.5 bits at 100MHz input due to –92dBc HD3 and 2nV/√Hz noise floor. |
Use Scenario: Signal conditioning in a battery-powered oscilloscope front-end with auto-ranging. IC Role / Device Role / Timing Role: Programmable-gain amplifier with on-demand shutdown between acquisitions. Use Value: Extends battery runtime via 160μA disable current while retaining <80ns wake-up latency. |
| Low-Cost Precision IF Amplifiers | Arbitrary Waveform Generator Output Stages |
Use Scenario: Intermediate frequency amplification in a software-defined radio receiver at 70MHz. IC Role / Device Role / Timing Role: Fixed-gain +8V/V stage after mixer; rejects image frequencies via high CMRR (65dB). Use Value: Delivers –65dBc HD2 at 10MHz, ensuring adjacent-channel interference remains below –75dBc. |
Use Scenario: Final output buffer for a 500MSPS AWG generating complex modulated waveforms. IC Role / Device Role / Timing Role: High-current, low-distortion output driver delivering 2VPP into 50Ω. Use Value: Achieves 540MHz large-signal bandwidth and ±140mA sourcing/sinking to maintain fidelity up to Nyquist. |
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 slew rate (3100V/μs), wider supply range (±5V to ±6V only), no disable pin | Lacks power-gating capability; unsuitable for portable instruments requiring dynamic power management | Choose when disable function is unnecessary and lower cost is prioritized over 5000V/μs performance |
| THS3491DGNR | Higher output current (±400mA), higher supply current (22mA), SOIC-8 only (no SOT-23 option) | Requires larger PCB area and higher system power; better for fixed-line infrastructure than portable gear | Choose when driving heavy capacitive loads (>100pF) or needing >200mA peak current beyond OPA695IDBVT's ±140mA limit |
Compared with LMH6702MF/NOPB and THS3491DGNR, the OPA695IDBVT uniquely combines SOT-23-6 footprint, integrated disable, 5000V/μs slew rate, and –92dBc HD3 - making it optimal for space-constrained, battery-sensitive wideband signal chains where rapid power cycling and spectral purity are jointly critical.
Availability
OPA695IDBVT is available at Aetrix Electronics and suitable for very wideband ADC drivers, portable broadband instruments, and arbitrary waveform generator output stages requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for OPA695IDBVT 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 amplifier design and manufacturing.
The OPA695IDBVT belongs to TI's OPAx695 current-feedback op-amp family, engineered specifically for precision, wideband signal acquisition and generation in portable test equipment, communications infrastructure, and high-fidelity data conversion systems.
FAQ
What is the maximum small-signal bandwidth of the OPA695IDBVT at G = +1V/V?
The OPA695IDBVT achieves 1900MHz small-signal bandwidth at G = +1V/V under ±5V supply conditions with 0.5VPP output. This performance enables direct interface with ultra-high-speed comparators and RF sampling circuits without intermediate buffering, provided layout minimizes parasitic capacitance at the inverting input node.
How does the DIS pin function on the OPA695IDBVT?
The DIS pin on the OPA695IDBVT is an active-low enable control: pulling it ≤1.7V disables the amplifier, reducing quiescent current to 160μA; holding it ≥3.0V enables normal operation. Enable time is 80ns, disable time is 4μs, and off-isolation exceeds 70dB at 10MHz - critical for time-division multiplexed signal paths in the OPA695IDBVT.
Can the OPA695IDBVT operate from a single 5V supply?
Yes, the OPA695IDBVT supports single 5V operation with rail-to-rail output swing from 0.9V to 4.05V (no load) and maintains 500MHz small-signal bandwidth at G = +8V/V. Input common-mode range spans 1.6V to 3.4V, requiring level-shifting for bipolar input signals - a key design consideration when using OPA695IDBVT in 5V-only systems.
What is the harmonic distortion performance of the OPA695IDBVT at 10MHz?
At 10MHz, the OPA695IDBVT delivers HD2 = –65dBc and HD3 = –92dBc with 2VPP output into 100Ω under ±5V supplies. This low distortion enables clean signal reconstruction in digitizer front-ends and IF amplifiers where spurious-free dynamic range (SFDR) >85dB is required - a verified specification for the OPA695IDBVT per TI SBOS293J.
Which package type does the OPA695IDBVT use, and what are its thermal characteristics?
The OPA695IDBVT uses the DBV package: a 6-pin SOT-23 measuring 2.9mm × 2.8mm with RθJA = 164°C/W. It lacks an exposed thermal pad, so PCB copper pour under the device is recommended to improve heat dissipation. Junction temperature must remain ≤150°C, limiting continuous output current in high-ambient environments - a key thermal constraint for sustained OPA695IDBVT operation.
OPA695IDBVT 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
OPA695IDBVT FAQ
1.How can I place an order for OPA695IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA695IDBVT 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 OPA695IDBVT reliable?
The price and inventory of OPA695IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA695IDBVT is usually 5 days.
3.What payment methods are accepted for OPA695IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA695IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA695IDBVT?
OPA695IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA695IDBVT 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 OPA695IDBVT?
For technical support, including OPA695IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA695IDBVT requirements.
6.How does Aetrix verify that OPA695IDBVT is sourced from the original manufacturer or authorized distributors?
All OPA695IDBVT 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 OPA695IDBVT meets industry standards.
7.What is the process for return or replacement of OPA695IDBVT?
All OPA695IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA695IDBVT, 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 OPA695IDBVT part is unused and in its original packaging.
Return procedure for OPA695IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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