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Texas Instruments OPA2822UG4
- Part No.:
- OPA2822UG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2822UG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,750
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Product details
Overview
OPA2822UG4 from Texas Instruments is a dual, wideband, low-noise voltage-feedback operational amplifier designed for xDSL differential line receivers and high-dynamic-range ADC drivers. It delivers 2.0nV/√Hz input voltage noise, 500MHz unity-gain bandwidth, and –105dBc third-harmonic distortion at 1MHz with 2VPP differential output - enabling >14-bit dynamic range in baseband I/Q receiver channels.
For engineers reviewing the OPA2822UG4 datasheet, OPA2822UG4 pinout, OPA2822UG4 application, or OPA2822UG4 equivalent, this page provides verified specifications, SO-8 package terminal mapping, real-world use cases in xDSL and precision PLL integrators, and two validated alternative parts with documented technical and application differences.
Technical Context
The OPA2822UG4 employs a unity-gain stable voltage-feedback architecture optimized for differential configurations, supporting both noninverting (G = +1 to +10) and inverting (G = –1 to –10) operation. Its 240MHz gain-bandwidth product and 170V/µs slew rate enable clean signal amplification up to 5MHz with minimal phase distortion.
It operates from ±5V to ±6.5V or single +5V to +12V supplies, delivering ±4.7V output swing into 100Ω and sourcing/sinking ≥90mA per channel. Input common-mode range extends to ±4.4V at ±6V supply, and channel-to-channel crosstalk is –95dBc at 1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 2.0nV/√Hz @ >10kHz - enables ultra-low-noise front-end design for 14+ bit ADC interfaces |
| Unity-Gain Bandwidth | 500MHz - supports wideband signal conditioning up to 5MHz with flat gain response |
| Harmonic Distortion (3rd) | ≤ –105dBc @ 1MHz, 2VPP, RL ≥ 500Ω - ensures SFDR > 100dB for high-fidelity I/Q demodulation |
| Output Current | ±90mA min per channel - drives passive filters and 100Ω loads without external buffering |
| Supply Range | Single +5V to +12V or dual ±5V to ±6.5V - compatible with legacy xDSL line card power rails |
| Slew Rate | 170V/µs min - preserves fast transient fidelity in pulse-shaped DSL signals |
| Input Offset Voltage | ±1.5mV max - supports DC-coupled baseband amplification with <0.02% gain error |
Pinout & Package
OPA2822UG4 is packaged in an SO-8 surface-mount package (Package Designator: D), with lead finish matte tin and RoHS-compliant construction. Thermal resistance θJA is 125°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+VS) | Positive Supply | Accepts +5V to +12V (single) or +6.5V max (dual rail); bypass with 0.1µF near pin |
| 2 (Out B) | Channel B Output | Low-impedance buffered output; capable of ±90mA drive into 100Ω load |
| 3 (–In B) | Inverting Input B | Differential input node for Channel B; matched impedance critical for distortion performance |
| 4 (+In B) | Noninverting Input B | DC-coupled input; requires matched impedance to –In B for bias current cancellation |
| 5 (Out A) | Channel A Output | Independent output; supports differential pair configuration with Out B |
| 6 (–In A) | Inverting Input A | Primary input for Channel A in inverting mode; used with RM/RG for 50Ω source matching |
| 7 (+In A) | Noninverting Input A | Used in noninverting mode; must be DC-biased within CMIR (±4.4V @ ±6V) |
| 8 (–VS) | Negative Supply | Accepts 0V (single-supply ground) or –5V to –6.5V; decouple with 6.8µF bulk + 0.1µF ceramic |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input voltage noise | 2.0nV/√Hz enables >14-bit effective resolution in ADC driver applications |
| High output current drive | ±90mA per channel eliminates need for external buffer when driving 100Ω passive filters |
| Differential distortion optimization | –105dBc 3rd-harmonic at 1MHz supports xDSL receiver compliance with ITU-T G.992.1 |
| Wide supply flexibility | Operates from +5V single supply to ±6.5V - simplifies migration across legacy and new line card designs |
| Low input bias current drift | 50nA/°C max ensures stable DC operating point over industrial temperature range (–40°C to +85°C) |
Applications
| xDSL Differential Line Receivers | High Dynamic Range ADC Drivers |
|---|---|
Use Scenario: Amplifying differential analog signals from twisted-pair xDSL line interface transformers before digitization. IC Role / Device Role / Timing Role: Low-noise, low-distortion differential receiver stage providing gain and drive capability for codec inputs. Use Value: 2.0nV/√Hz noise and –105dBc distortion preserve >14-bit SNR through full 5MHz ADSL2+ band. | Use Scenario: Driving the input of 14-bit+ pipeline or sigma-delta ADCs in communications test equipment. IC Role / Device Role / Timing Role: Precision, wideband buffer ensuring full-scale analog input without clipping or harmonic corruption. Use Value: 500MHz bandwidth and 170V/µs slew rate maintain signal integrity for multi-MHz sampling clocks and fast transients. |
| Low-Noise PLL Integrators | Precision Baseband I/Q Amplifiers |
Use Scenario: Implementing loop filter integrators in frequency synthesizers for wireless infrastructure. IC Role / Device Role / Timing Role: Low-voltage-noise op-amp integrating charge pump current to generate VCO tuning voltage. Use Value: 2.0nV/√Hz input noise minimizes phase noise contribution; ±1.5mV offset ensures stable lock point. | Use Scenario: Amplifying in-phase and quadrature baseband signals in direct-conversion receivers. IC Role / Device Role / Timing Role: Matched dual-channel amplifier preserving amplitude/phase balance between I and Q paths. Use Value: –95dBc channel crosstalk and <0.03° differential phase error enable >70dB image rejection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wideband, low-noise operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2690ID | Higher 1.3nV/√Hz noise floor but 1.5× higher slew rate (250V/µs); SO-8 package, same pinout | Better suited for >10MHz transient-heavy applications; less optimal for sub-5MHz ultra-low-noise ADC drivers | Select OPA2690ID only when slew rate >200V/µs is required and 0.7nV/√Hz noise penalty is acceptable |
| THS4631D | 1.8nV/√Hz noise, 100MHz GBW, ±45mA output - lower bandwidth and drive than OPA2822UG4 | Targeted at lower-frequency precision instrumentation; insufficient for xDSL full-band operation | Choose THS4631D for cost-sensitive, <50MHz applications where 2.0nV/√Hz noise is not mandatory |
Compared with OPA2822UG4, OPA2690ID trades 0.7nV/√Hz higher noise for greater slew rate and bandwidth headroom, while THS4631D offers lower cost and adequate noise at the expense of bandwidth and output drive - making OPA2822UG4 the optimal balance for xDSL and 14-bit ADC driver use cases.
Availability
OPA2822UG4 is available at Aetrix Electronics and suitable for xDSL line card manufacturing, high-speed data acquisition systems, and precision PLL design requiring stable component supply across extended production lifecycles.
Supply support for OPA2822UG4 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 company specializing in analog and embedded processing technologies, with leadership in high-performance op-amps and signal chain solutions.
The OPA2822UG4 belongs to TI's OPAx822 family of wideband, low-noise voltage-feedback op-amps engineered specifically for xDSL receiver front-ends and high-dynamic-range data converter interfaces.
FAQ
What is the maximum supply voltage for OPA2822UG4 in single-supply operation?
The OPA2822UG4 supports single-supply operation up to +12.6V maximum, as specified in the Electrical Characteristics table under VS = +5V conditions. Operation at +12V is fully characterized and commonly used in xDSL line cards to maximize output swing and dynamic range. Exceeding +12.6V risks permanent damage per Absolute Maximum Ratings.
Does OPA2822UG4 support true rail-to-rail input and output?
No, OPA2822UG4 is not a rail-to-rail device. Its input common-mode range extends to within 1.2V of either supply rail (e.g., 1.2V to 3.8V on +5V supply), and output swing is specified to ±4.7V into 100Ω with ±6V supplies - meaning it swings to within ~1.3V of each rail. This is sufficient for most xDSL and ADC driver applications but requires appropriate DC biasing.
Can OPA2822UG4 be used in differential configurations with matched gain and phase?
Yes, OPA2822UG4 is explicitly characterized for differential operation, with –95dBc channel-to-channel crosstalk at 1MHz and <0.03° differential phase error. The datasheet provides dedicated differential test circuits (Figures 10–14) and confirms <0.02% gain mismatch between channels - enabling precise I/Q signal path matching in direct-conversion receivers.
What is the recommended feedback network for minimizing noise in OPA2822UG4 noninverting G = +2 configuration?
For minimal total input-referred noise in G = +2 noninverting mode, TI recommends keeping the parallel combination of RF and RG below 300Ω. In the standard test circuit (Figure 1), RF = RG = 402Ω yields 201Ω parallel value - contributing ~1.8nV/√Hz resistor noise, close to the amplifier's 2.0nV/√Hz intrinsic noise. Lower values improve noise but degrade distortion due to increased output loading.
Is OPA2822UG4 pin-compatible with other devices in the OPA2822 family?
Yes, OPA2822UG4 (SO-8 package) shares identical pinout with OPA2822U and OPA2822U/2K5 variants. All SO-8 versions use the same D package marking and terminal assignment. However, MSOP-8 variants (e.g., OPA2822E) have different pinout and thermal characteristics and are not mechanically or electrically interchangeable without PCB redesign.
OPA2822UG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 170V/µs
- Gain Bandwidth Product:
- 240 MHz
- -3db Bandwidth:
- 400 MHz
- Current - Input Bias:
- 9 µA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 9.6mA (x2 Channels)
- Current - Output / Channel:
- 150 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 12.6 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA2822UG4 FAQ
1.How can I place an order for OPA2822UG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2822UG4 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 OPA2822UG4 reliable?
The price and inventory of OPA2822UG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2822UG4 is usually 5 days.
3.What payment methods are accepted for OPA2822UG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2822UG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2822UG4?
OPA2822UG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2822UG4 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 OPA2822UG4?
For technical support, including OPA2822UG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2822UG4 requirements.
6.How does Aetrix verify that OPA2822UG4 is sourced from the original manufacturer or authorized distributors?
All OPA2822UG4 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 OPA2822UG4 meets industry standards.
7.What is the process for return or replacement of OPA2822UG4?
All OPA2822UG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2822UG4, 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 OPA2822UG4 part is unused and in its original packaging.
Return procedure for OPA2822UG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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