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Texas Instruments OPA830IDR
- Part No.:
- OPA830IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA830IDR.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,956
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Product details
Overview
OPA830IDR from Texas Instruments is a low-power, single-supply, wideband voltage-feedback operational amplifier optimized for 3V and 5V ADC input buffering and video line driving. It delivers 250MHz small-signal bandwidth at G = +1, 550V/μs slew rate, 9.2nV/√Hz input voltage noise, and 4.88V output swing on 5V supply - enabling high-fidelity signal conditioning in portable consumer electronics and ultrasound front-ends.
For engineers reviewing the OPA830IDR datasheet, OPA830IDR pinout, OPA830IDR application, or OPA830IDR equivalent, key selection criteria include its rail-to-rail output swing with ±80mA drive capability, ground-referenced input on single supply, low quiescent current (3.9mA @ 5V), and validated performance across –40°C to +85°C industrial temperature range.
Technical Context
The OPA830IDR employs complementary common-emitter output stage architecture to achieve output swing within 25mV of either rail while driving 150Ω loads. Its voltage-feedback topology supports stable operation at gains ≥ +1 without external compensation, with gain-bandwidth product scaling from 110MHz (G ≥ +10) to 250MHz (G = +1).
Input stage design enables input common-mode range extending below negative supply (–0.5V @ 5V) and to within 1.7V of positive supply, supporting true single-supply operation with ground-referenced sensors or DACs. Distortion performance improves at lower signal swings - a verified behavior distinct from typical low-power op amps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 250MHz at G = +1 (5V supply): enables >100MHz analog signal path for high-speed ADC drivers |
| Slew rate | 550V/μs (G = +2, 2V step): supports full-scale transient response for 10-bit+ ADCs sampling at ≥20 MSPS |
| Input voltage noise | 9.2nV/√Hz (f > 1MHz): preserves SNR in wide-dynamic-range applications like CCD imaging and ultrasound |
| Quiescent current | 3.9mA @ 5V: enables battery-powered designs with ≤4mW total power per channel |
| Output swing | ±4.88V on 5V supply (RL = 1kΩ): delivers 4.88VPP into high-Z loads, critical for maximizing ADC effective resolution |
| Supply range | 2.8V to 11V single supply or ±1.4V to ±5.5V dual supply: supports direct interface with 3V/5V logic and legacy ±5V systems |
| Input common-mode range | Extends to ground on single supply: eliminates need for level-shifting when interfacing with ground-referenced sensors |
Pinout & Package
OPA830IDR is packaged in a Pb-free SOIC-8 (D package), 4.9mm × 6mm body size, with standard pinout compatible with industry-wide layout practices.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No internal connection; must be left floating or tied to ground for mechanical stability |
| 2 | –IN | Inverting input; high-impedance node requiring guarded trace routing in high-frequency layouts |
| 3 | +IN | Noninverting input; referenced to ground on single supply, enabling DC-coupled sensor interfaces |
| 4 | V– | Negative supply terminal; connects to ground in single-supply configurations (VS = 2.8V–11V) |
| 5 | NC | No internal connection; must be left floating or tied to ground for mechanical stability |
| 6 | OUT | Amplified output; capable of ±80mA sourcing/sinking into 150Ω loads with <0.06Ω closed-loop impedance |
| 7 | V+ | Positive supply terminal; accepts 2.8V–11V (single) or up to ±5.5V (dual) with thermal derating |
| 8 | NC | No internal connection; must be left floating or tied to ground for mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| Low-power wideband operation | 250MHz bandwidth with only 3.9mA supply current enables high-speed signal chains without thermal compromise |
| Ground-sensing input on single supply | Input common-mode extends to V– (ground), eliminating level-shifters for direct interface with grounded sensors or DACs |
| Rail-to-rail output swing | Swings within 25mV of either supply rail under 150Ω load, maximizing dynamic range utilization in 3V/5V systems |
| Low distortion at reduced signal swing | Harmonic distortion improves as output amplitude decreases - verified behavior beneficial for variable-gain front-ends |
| High output drive capability | ±80mA continuous output current supports driving 150Ω video lines or multiple parallel ADC inputs without external buffers |
Applications
| ADC Input Buffering | Single-Supply Video Line Driving |
|---|---|
|
Use Scenario: Driving the analog input of 10-bit to 12-bit, 20–65 MSPS CMOS ADCs in portable medical or test equipment. IC Role / Device Role: High-fidelity, low-noise, fast-settling buffer that preserves SNR and minimizes harmonic distortion before digitization. Use Value: 9.2nV/√Hz input noise and 550V/μs slew rate ensure ≥70dB SFDR at 5MHz, directly supporting ENOB >10 bits. |
Use Scenario: Driving 75Ω coaxial video lines in battery-powered surveillance cameras or portable displays. IC Role / Device Role: Single-supply line driver delivering NTSC-compliant differential gain (0.08%) and phase (0.09°) error. Use Value: ±80mA output drive and rail-to-rail swing enable full 1VPP video signal delivery over 75Ω with no external components. |
| CCD Imaging Channel | Low-Power Ultrasound Front-End |
|
Use Scenario: Amplifying low-level, wideband charge pulses from CCD pixel arrays in handheld scanners or document cameras. IC Role / Device Role: Low-noise transimpedance or gain stage operating from 3V supply with minimal power overhead. Use Value: 250MHz bandwidth and 9.2nV/√Hz noise support >10MHz pixel clock rates while maintaining >65dB SNR in 12-bit systems. |
Use Scenario: Conditioning echo signals in portable ultrasound probes where power budget and size are constrained. IC Role / Device Role: Low-distortion, low-noise preamplifier stage amplifying weak MHz-range echoes before programmable gain amplification. Use Value: Verified 3rd-harmonic distortion of –69dBc at 5MHz (2VPP, RL ≥ 500Ω) ensures clean time-domain pulse fidelity for accurate TOF measurement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wideband operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA832IDR | Fixed-gain +2 configuration; no external feedback network required; 110MHz bandwidth at G = +2 | Optimized for line-driver applications only; not configurable for variable gain or ADC buffering | Select OPA832IDR when fixed +2 gain suffices and board space is constrained - eliminates two resistors but forfeits design flexibility |
| OPA2830IDR | Dual-channel version in SOIC-8; identical AC/DC specs per channel; 7.8mA total quiescent current (3.9mA/channel) | Enables dual-path signal conditioning (e.g., I/Q channels) or redundant buffering without doubling PCB area | Choose OPA2830IDR for space-constrained dual-channel designs where matching and thermal coupling improve system performance |
Compared with OPA830IDR, OPA832IDR trades configurability for integration in fixed-gain roles, while OPA2830IDR doubles channel count at identical per-channel performance - both retain the same 9.2nV/√Hz noise floor and 250MHz G=+1 bandwidth, making them drop-in alternatives only in their respective functional domains.
Availability
OPA830IDR is available at Aetrix Electronics and suitable for high-speed ADC buffering, single-supply video line driving, and portable ultrasound front-end designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA830IDR 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-performance op amp design and manufacturing.
The OPA830IDR belongs to TI's precision wideband op amp portfolio, engineered specifically for low-power, single-supply signal conditioning in portable instrumentation, medical imaging, and high-resolution data acquisition systems.
FAQ
What is the maximum small-signal bandwidth of the OPA830IDR at unity gain?
The OPA830IDR achieves 250MHz small-signal bandwidth at G = +1 with a 5V supply, as specified in Section 6.6 of the official datasheet. This bandwidth is measured with VO ≤ 0.2VPP and applies across the full industrial temperature range (–40°C to +85°C) under recommended operating conditions. The OPA830IDR maintains this performance without external compensation, confirming its suitability as a high-speed ADC driver.
Does the OPA830IDR support true single-supply operation with ground-referenced inputs?
Yes, the OPA830IDR supports true single-supply operation: its input common-mode voltage range extends to V– (ground) on 5V supply, with a minimum negative input voltage of –0.5V (typical) and –0.2V (min over temperature). This allows direct connection to ground-referenced sources such as sensors or DAC outputs without level-shifting circuitry - a confirmed feature documented in Sections 6.6 and 6.9 of the datasheet.
What is the typical quiescent current of the OPA830IDR at 5V supply?
The OPA830IDR draws 3.9mA typical quiescent current at VS = 5V, with a guaranteed maximum of 4.1mA over temperature (–40°C to +85°C), as specified in Section 6.6 Electrical Characteristics. This low power consumption enables use in battery-powered applications such as portable ultrasound or handheld test equipment where thermal and energy budgets are tightly constrained.
Can the OPA830IDR drive a 150Ω load while maintaining rail-to-rail output swing?
Yes - the OPA830IDR delivers ±4.64V output swing into a 150Ω load on 5V supply (Section 6.6), corresponding to a 4.64VPP signal centered at 2.5V. Its ±80mA output drive capability and complementary common-emitter output stage enable this performance while maintaining low distortion (–55dBc 2nd-harmonic at 5MHz), making it suitable for driving terminated video lines or multiple parallel ADC inputs.
How does distortion performance of the OPA830IDR change with decreasing output signal amplitude?
Unlike many low-power op amps, the OPA830IDR exhibits improved harmonic distortion as output signal amplitude decreases - a behavior explicitly documented in the datasheet description: "distortion performance improves as the signal swing decreases." For example, 3rd-harmonic distortion improves from –50dBc (2VPP) to –59dBc (1VPP) at 5MHz with RL ≥ 500Ω, directly benefiting variable-gain or adaptive-sensitivity front-ends in ultrasound and imaging systems.
OPA830IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
OPA830IDR FAQ
1.How can I place an order for OPA830IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA830IDR 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 OPA830IDR reliable?
The price and inventory of OPA830IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA830IDR is usually 5 days.
3.What payment methods are accepted for OPA830IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA830IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA830IDR?
OPA830IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA830IDR 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 OPA830IDR?
For technical support, including OPA830IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA830IDR requirements.
6.How does Aetrix verify that OPA830IDR is sourced from the original manufacturer or authorized distributors?
All OPA830IDR 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 OPA830IDR meets industry standards.
7.What is the process for return or replacement of OPA830IDR?
All OPA830IDR units undergo pre-shipment inspection (PSI). If there is an issue with OPA830IDR, 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 OPA830IDR part is unused and in its original packaging.
Return procedure for OPA830IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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