My Inquiry
My Account
Texas Instruments OPA695ID
- Part No.:
- OPA695ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA695ID.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,374
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA695ID 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 –92dBc HD3 at 10MHz - enabling high-fidelity ADC driver and IF amplifier applications in portable test equipment and broadband video systems.
For engineers reviewing the OPA695ID datasheet, OPA695ID pinout, OPA695ID application, or OPA695ID equivalent, this page provides verified package mapping (SOIC-8), disable-mode timing (80ns enable), harmonic distortion data across load and gain, thermal metrics (RθJA = 136°C/W), and validated alternatives for wideband current-feedback op-amp selection.
Technical Context
The OPA695ID uses a current-feedback architecture with low-impedance inverting input (20Ω) and high-impedance noninverting input (450kΩ || 2pF), enabling stable high-gain operation up to +16V/V without peaking beyond 3.7dB. Its transimpedance open-loop gain (45kΩ typ) and fast internal compensation support sub-10ns settling to 0.5% at G = +8V/V.
It integrates a dedicated DIS pin that reduces quiescent current from 14mA to 160μA when pulled low, with 4μs disable time and 80ns enable time. The device operates from ±5V to ±6V dual supply or 5V to 12V single supply, maintaining specified AC performance across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 600MHz at G = +8V/V (±5V supply): enables >100MS/s ADC front-end gain staging |
| Slew rate | 5000V/μs: supports clean 2VPP output at 540MHz large-signal bandwidth |
| Output voltage swing | ±4.05V (no load, ±5V): delivers full-scale drive into 100Ω loads for cable-modem upstream stages |
| Harmonic distortion | –92dBc HD3 at 10MHz, 2VPP, RL = 100Ω: meets spectral purity requirements for IF amplifiers |
| Input voltage noise | 2nV/√Hz above 1MHz: preserves SNR in low-noise gain blocks preceding high-resolution ADCs |
| Disable current | 160μA (DIS = low): allows rapid power gating in battery-powered portable instruments |
| Supply range | ±5V to ±6V dual or 5V to 12V single: supports legacy ±5V systems and modern 5V/12V industrial rails |
Pinout & Package
OPA695ID is packaged in an 8-pin SOIC (D package), 4.9mm × 6mm body size with standard lead pitch. Thermal performance is characterized with RθJA = 136°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No connection; must be left floating or grounded per layout guidelines |
| 2 | Inverting Input | Low-impedance node (20Ω) - sets feedback path and gain via external RF resistor |
| 3 | Noninverting Input | High-impedance input (450kΩ || 2pF); reference point for common-mode biasing |
| 4 | –VS | Negative supply rail; thermal pad (if present) connects to this pin in WSON variants |
| 5 | DIS | Active-low disable control: <1.7V disables amplifier; >3.0V enables normal operation |
| 6 | Output | Capable of ±140mA sourcing/sinking; requires careful PCB routing for >500MHz stability |
| 7 | +VS | Positive supply rail; decoupling capacitor (0.1μF ceramic + 4.7μF tantalum) required within 5mm |
| 8 | NC | No connection; electrically isolated from die; avoid routing signals underneath |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-high slew rate | 5000V/μs enables distortion-free reproduction of fast transient waveforms in arbitrary waveform generators |
| Integrated disable function | Dedicated DIS pin achieves 160μA shutdown current with 80ns wake-up - critical for duty-cycled portable instruments |
| Current-feedback topology | Stable gain ≥ +8V/V with flat frequency response up to 600MHz, eliminating need for complex compensation networks |
| Low input voltage noise | 2nV/√Hz ensures minimal added noise in high-gain IF amplifier stages before ADC sampling |
| Wide supply range | Operates from ±5V to ±6V dual or 5V–12V single supply - compatible with both legacy and modern system rails |
Applications
| Very Wideband ADC Drivers | Low-Cost Precision IF Amplifiers |
|---|---|
|
Use Scenario: Driving the input of a 14-bit, 125MSPS pipeline ADC in a software-defined radio receiver. IC Role / Device Role / Timing Role: Final gain stage providing 8V/V differential drive with <10ns settling to 0.5%, preserving ENOB at Nyquist. Use Value: 600MHz bandwidth and –92dBc HD3 ensure >72dB SFDR at 10MHz IF, meeting LTE-A adjacent channel rejection specs. |
Use Scenario: Intermediate-frequency amplification in a handheld spectrum analyzer operating from 10MHz to 1GHz. IC Role / Device Role / Timing Role: Fixed-gain +8V/V current-feedback amplifier between mixer and filter bank, requiring flat group delay. Use Value: 0.2-dB gain flatness over 120MHz bandwidth maintains amplitude accuracy across IF band without calibration. |
| Broadband Video Line Drivers | Portable Instruments |
|
Use Scenario: Driving 75Ω coaxial video lines in HD-SDI test equipment with SMPTE 292M compliance. IC Role / Device Role / Timing Role: Single-ended-to-differential line driver delivering 2VPP into 75Ω with <0.1% differential gain error. Use Value: ±4.05V output swing and 140mA output current sustain 1.5Gbps serial video signaling with <0.3UI jitter. |
Use Scenario: Battery-powered oscilloscope front-end with selectable 1×/10× probe interface and auto-ranging. IC Role / Device Role / Timing Role: Programmable gain amplifier (PGA) core with on-demand disable during deep sleep modes. Use Value: 160μA shutdown current extends 3.7V Li-ion battery life to >12 hours in standby, while 80ns wake-up enables instant-on operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6702MA/NOPB | Lower bandwidth (1.8GHz G=+1, 400MHz G=+8), higher supply current (18mA), no disable pin | Lacks power-gating capability; unsuitable for battery-cycled portable instruments | Select when absolute maximum bandwidth at G=+1 is prioritized over disable functionality and thermal efficiency |
| THS3491IRGTR | Higher slew rate (8000V/μs), wider supply (±5V to ±15V), but larger VSSOP-16 package and no DIS pin | Requires more board area and lacks integrated shutdown - increases system-level power management complexity | Prefer for ultra-high-slew applications like pulsed laser drivers where 5000V/μs is insufficient |
Compared with LMH6702MA/NOPB and THS3491IRGTR, the OPA695ID uniquely combines 600MHz bandwidth at G=+8V/V, 5000V/μs slew rate, and a functional DIS pin in SOIC-8 - making it the only option among the three that satisfies simultaneous wideband gain, low-power shutdown, and compact footprint requirements.
Availability
OPA695ID is available at Aetrix Electronics and suitable for very wideband ADC drivers, low-cost precision IF amplifiers, and broadband video line drivers requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for OPA695ID 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 OPA695ID belongs to TI's OPA695 family of ultra-wideband current-feedback op-amps, designed specifically for high-fidelity, high-speed signal acquisition and conditioning in test & measurement, communications, and video infrastructure.
FAQ
What is the maximum small-signal bandwidth of the OPA695ID at G = +8V/V?
The OPA695ID achieves a typical small-signal bandwidth of 600MHz at G = +8V/V under ±5V supply conditions, as confirmed in Section 5.5 of the official datasheet. This specification applies to the OPA695ID, OPA695IDBV, and OPA695DSG variants when tested with RF = 402Ω and RL = 100Ω to VS/2 at TA = +25°C.
Does the OPA695ID support single-supply operation?
Yes, the OPA695ID supports single-supply operation from 5V to 12V, with verified AC performance including 500MHz bandwidth at G = +8V/V under 5V supply (Section 5.6). Input common-mode range extends from 1.6V to 3.4V, and output swings from 0.9V to 4.05V (no load), enabling use in ground-referenced systems.
How does the DIS pin function on the OPA695ID?
The DIS pin on the OPA695ID is an active-low control: pulling it below 1.7V (typical) disables the amplifier, reducing quiescent current to 160μA (typical). Release to >3.0V enables operation within 80ns. Pin 5 must not be left floating - tie to +VS via 10kΩ for default-enable or drive actively for power sequencing.
What is the thermal resistance (RθJA) of the OPA695ID in SOIC-8 package?
The OPA695ID in D-package (SOIC-8) has a junction-to-ambient thermal resistance (RθJA) of 136°C/W, as specified in Section 5.4 of the datasheet. This value assumes standard JEDEC 2-layer board conditions (1-inch² copper pad, 2oz Cu) and is critical for calculating maximum allowable power dissipation at elevated ambient temperatures.
Can the OPA695ID drive a 50Ω load effectively?
Yes - the OPA695ID delivers ±140mA output current and sustains ±3.75V swing into 100Ω (Section 5.5). For 50Ω, output swing drops to ±3.65V (min) with increased distortion; design guidance recommends using a series resistor (e.g., 25Ω) to match 50Ω while preserving stability and linearity, as shown in Figure 7-1 of the datasheet.
OPA695ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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:
- 8-SOIC
OPA695ID FAQ
1.How can I place an order for OPA695ID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA695ID 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 OPA695ID reliable?
The price and inventory of OPA695ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA695ID is usually 5 days.
3.What payment methods are accepted for OPA695ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA695ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA695ID?
OPA695ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA695ID 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 OPA695ID?
For technical support, including OPA695ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA695ID requirements.
6.How does Aetrix verify that OPA695ID is sourced from the original manufacturer or authorized distributors?
All OPA695ID 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 OPA695ID meets industry standards.
7.What is the process for return or replacement of OPA695ID?
All OPA695ID units undergo pre-shipment inspection (PSI). If there is an issue with OPA695ID, 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 OPA695ID part is unused and in its original packaging.
Return procedure for OPA695ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA695ID Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
