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Texas Instruments OPA830ID
- Part No.:
- OPA830ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA830ID.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:359
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Product details
Overview
OPA830ID from Texas Instruments is a low-power, single-supply, wideband voltage-feedback operational amplifier optimized for 3V/5V ADC input buffering and video line driving. It delivers 250MHz bandwidth at G=+1, 550V/μs slew rate, 9.2nV/√Hz input voltage noise, and rail-to-rail output swing within 25mV of supplies on 5V operation - enabling high-fidelity signal conditioning in portable medical ultrasound and CCD imaging channels.
For engineers reviewing the OPA830ID datasheet, OPA830ID pinout, OPA830ID application, or OPA830ID equivalent, key selection criteria include its 3.9mA quiescent current at 5V, input range extending to ground on single supply, ±80mA output drive, and validated performance across SO-8 (D) and SOT-23-5 (DBV) packages for space-constrained PCB layouts.
Technical Context
The OPA830ID employs a complementary common-emitter output stage enabling output swing to within 25mV of either rail while driving 150Ω loads. Its voltage-feedback architecture supports stable unity-gain operation with 250MHz small-signal bandwidth and 110MHz gain-bandwidth product at G≥+10.
Input stage design accommodates single-supply operation with common-mode input range extending below V– and to within 1.7V of V+, while maintaining 76–80dB CMRR and 66–74dB open-loop gain across temperature. Thermal resistance is 125°C/W (SO-8) and 186.3°C/W (SOT-23-5).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth (G = +1) | 250MHz - enables full-power bandwidth for >100MSPS ADC drivers without peaking-induced distortion |
| Slew rate | 550V/μs - supports clean 2V step response in ≤3.5ns with <0.1% settling error |
| Input voltage noise | 9.2nV/√Hz - preserves dynamic range in 12–14-bit precision signal chains |
| Quiescent current | 3.9mA at 5V - allows battery-powered operation with <20mW total power dissipation |
| Output swing (RL = 150Ω) | ±4.64V on 5V supply - delivers 4.88Vpp differential signal into standard video loads |
| Supply range | 2.8V to 11V single supply or ±1.4V to ±5.5V dual supply - supports legacy 3.3V, modern 3V, and industrial 10V rails |
| Input common-mode range | Extends to ground on single supply - eliminates level-shifting circuitry for DC-coupled sensor interfaces |
Pinout & Package
OPA830ID is available in the industry-standard SOIC-8 (D) package (4.9mm × 6mm), pin-compatible with legacy op-amps and suitable for automated assembly. The device uses a standard op-amp pinout with noninverting input on Pin 3, inverting input on Pin 2, output on Pin 6, V+ on Pin 7, and V– on Pin 4. Pins 1, 5, and 8 are no-connect (NC) and must be left floating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | No internal connection | Must remain unconnected; no electrical function or thermal path |
| Pin 2 | Inverting input (–IN) | High-impedance node for feedback network connection; accepts signals down to V– |
| Pin 3 | Noninverting input (+IN) | High-impedance node for reference or signal source; supports rail-to-rail common-mode range |
| Pin 4 | Negative supply (V–) | Lowest potential supply rail; required even in single-supply configurations (e.g., 0V ground) |
| Pin 5 | No internal connection | Must remain unconnected; no electrical function or thermal path |
| Pin 6 | Output (OUT) | Complementary emitter-follower output capable of ±80mA sourcing/sinking into 150Ω |
| Pin 7 | Positive supply (V+) | Highest potential supply rail; supports up to +11V in single-supply mode |
| Pin 8 | No internal connection | Must remain unconnected; no electrical function or thermal path |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives within 25mV of both supply rails under 150Ω load - eliminates headroom loss in 3V/5V systems |
| Single-supply ground-sensing input | Accepts input signals down to V– (0V in single-supply mode) - removes need for biasing resistors in DC-coupled sensors |
| Low distortion at reduced signal swing | 2nd-harmonic improves by ≥8dB when VO drops from 2Vpp to 1Vpp - enhances SNR in variable-amplitude applications like ultrasound |
| High output drive capability | ±80mA continuous sourcing/sinking - directly drives 150Ω video lines or ADC input capacitors without external buffers |
| Ultra-low input voltage noise | 9.2nV/√Hz at f > 1MHz - maintains >70dB SFDR in 5MHz–10MHz signal bands for CCD and ADC front-ends |
Applications
| ADC Input Buffering | Video Line Driving |
|---|---|
Use Scenario: DC-coupled analog front-end for 3V/5V CMOS ADCs sampling at 50–150MSPS in portable test equipment. IC Role / Device Role / Timing Role: High-speed, low-noise buffer isolating sensor output from ADC input capacitance while preserving phase linearity. Use Value: 250MHz bandwidth and 550V/μs slew rate ensure <0.1% settling in <64ns for 1V steps, meeting timing budgets of 12-bit+ converters. | Use Scenario: Composite video (NTSC/PAL) driver in consumer camcorders and portable media players. IC Role / Device Role / Timing Role: Fixed-gain line driver delivering 1Vpp into 75Ω with minimal differential gain/phase error. Use Value: 0.08% NTSC differential gain and 0.09° differential phase enable broadcast-grade color fidelity without post-correction. |
| CCD Imaging Channel | Portable Ultrasound Front-End |
Use Scenario: Correlated double sampling (CDS) amplifier in monochrome medical imaging sensors with 10–20MHz pixel rates. IC Role / Device Role / Timing Role: Low-noise, wideband gain stage amplifying reset and signal levels before subtraction. Use Value: 9.2nV/√Hz input noise and 110MHz GBW support >70dB SNR in 10MHz bandwidths typical of high-resolution CCD readout. | Use Scenario: Receive-path beamformer channel in handheld ultrasound probes operating from lithium-polymer batteries. IC Role / Device Role / Timing Role: Low-power, high-linearity LNA and variable-gain amplifier stage preceding digitization. Use Value: 3.9mA quiescent current at 5V and distortion improvement at lower signal swings extend battery life while maintaining image contrast. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wideband op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA832ID | Fixed-gain +2 configuration; 200MHz bandwidth; 400V/μs slew rate; same SO-8 package | Optimized for line-driver use cases only; lacks adjustable gain flexibility | Select when fixed +2 gain suffices and board space permits same footprint |
| LMH6629MA | Higher 1.5GHz GBW but 12mA IQ; 12nV/√Hz noise; SO-8 package | Better for RF/IF gain stages requiring >500MHz closed-loop bandwidth | Choose only if bandwidth >300MHz is mandatory and power budget allows 3× higher quiescent current |
Compared with OPA830ID, OPA832ID offers simplified layout for fixed-gain video paths but forfeits configurability, while LMH6629MA trades 3× higher power for 6× greater bandwidth - making OPA830ID optimal for battery-sensitive, medium-bandwidth ADC and imaging applications where noise and efficiency dominate.
Availability
OPA830ID is available at Aetrix Electronics and suitable for portable medical ultrasound, CCD imaging channels, and 3V/5V ADC input buffering requiring stable component supply across industrial temperature ranges (–40°C to +85°C) and long-lifecycle production programs.
Supply support for OPA830ID 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 solutions, with over 50 years of innovation in precision amplifiers and data converters.
The OPA830ID belongs to TI's high-speed voltage-feedback op-amp product line, engineered specifically for low-power, single-supply signal acquisition in portable instrumentation, medical imaging, and consumer video systems.
FAQ
What is the maximum recommended supply voltage for OPA830ID?
The OPA830ID supports a total supply voltage range of 2.8V to 11V in single-supply mode and ±1.4V to ±5.5V in dual-supply mode. Absolute maximum ratings specify ±6.5V for the DBV (SOT-23) package and 12V for the D (SO-8) package. For reliable long-term operation, TI recommends staying within the 11V single-supply or ±5.5V dual-supply limits specified in Recommended Operating Conditions - exceeding these may degrade reliability or cause permanent damage. Always verify voltage margins against worst-case tolerances in your OPA830ID design.
Does OPA830ID support true rail-to-rail input operation?
The OPA830ID does not provide rail-to-rail input common-mode range. Its input stage operates from V– to within 1.7V of V+, meaning it accepts signals down to the negative rail (including ground in single-supply use) but cannot accommodate inputs near the positive rail. For example, on a 5V single supply (V– = 0V, V+ = 5V), the maximum allowable input is ~3.2V. This design enables robust input stage biasing while retaining ground-sensing capability critical for DC-coupled sensor interfaces in OPA830ID applications.
Can OPA830ID drive a 75Ω video load directly?
Yes, the OPA830ID can directly drive a 75Ω video load when configured as a gain-of-two line driver, delivering 1Vpp into 75Ω with measured NTSC differential gain of 0.08% and differential phase of 0.09° - meeting broadcast-quality requirements. Its ±80mA output current capability and rail-to-rail output swing (±4.64V into 150Ω on 5V supply) scale linearly to support 75Ω termination. Layout best practices include short traces, proper grounding, and local 0.1μF decoupling at the V+ and V– pins to maintain stability and minimize distortion in OPA830ID video designs.
What is the thermal performance difference between SO-8 and SOT-23 packages for OPA830ID?
The SO-8 (D) package has a junction-to-ambient thermal resistance (RθJA) of 125°C/W, while the SOT-23-5 (DBV) package measures 186.3°C/W - indicating the SO-8 dissipates heat ~49% more effectively under identical PCB conditions. This difference arises from larger copper area and thermal mass in the SO-8 body. For OPA830ID applications drawing near-maximum quiescent current (4.7mA) at elevated ambient temperatures, the SO-8 package enables higher sustained output current and improved long-term reliability. TI specifies RθJB (junction-to-board) as 53.1°C/W for DBV, confirming its dependency on PCB copper pour for thermal management.
How does OPA830ID's distortion performance vary with output signal amplitude?
Unlike many op-amps whose harmonic distortion degrades at lower signal amplitudes, the OPA830ID exhibits improved 2nd-harmonic distortion as output swing decreases - e.g., –69dBc at 2Vpp drops to –77dBc at 1Vpp under identical 5MHz, RL ≥ 500Ω conditions. This behavior stems from its optimized input stage biasing and complementary output topology, making OPA830ID especially effective in variable-gain ultrasound receive paths and CCD CDS circuits where signal levels dynamically change. Designers should leverage this trait to maximize SNR in low-amplitude portions of the signal chain.
OPA830ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 600V/µs
- Gain Bandwidth Product:
- 110 MHz
- -3db Bandwidth:
- 310 MHz
- Current - Input Bias:
- 5 µA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 4.25mA
- Current - Output / Channel:
- 85 mA
- Voltage - Supply Span (Min):
- 2.8 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA830ID FAQ
1.How can I place an order for OPA830ID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA830ID 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 OPA830ID reliable?
The price and inventory of OPA830ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA830ID is usually 5 days.
3.What payment methods are accepted for OPA830ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA830ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA830ID?
OPA830ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA830ID 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 OPA830ID?
For technical support, including OPA830ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA830ID requirements.
6.How does Aetrix verify that OPA830ID is sourced from the original manufacturer or authorized distributors?
All OPA830ID 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 OPA830ID meets industry standards.
7.What is the process for return or replacement of OPA830ID?
All OPA830ID units undergo pre-shipment inspection (PSI). If there is an issue with OPA830ID, 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 OPA830ID part is unused and in its original packaging.
Return procedure for OPA830ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA830ID Tags
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