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Texas Instruments OPA2822U/2K5
- Part No.:
- OPA2822U/2K5
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2822U/2K5.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,850
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Product details
Overview
OPA2822U/2K5 from Texas Instruments is a dual, wideband, unity-gain stable voltage-feedback operational amplifier optimized for xDSL differential line receivers and high-dynamic-range ADC drivers. It delivers 2.0nV/√Hz input voltage noise, –105dBc third-harmonic distortion at 1MHz (RL ≥ 500Ω), and 90mA output current per channel, enabling clean signal conditioning in baseband I/Q channels and low-noise PLL integrators.
For engineers reviewing the OPA2822U/2K5 datasheet, OPA2822U/2K5 pinout, OPA2822U/2K5 application, or OPA2822U/2K5 equivalent, key selection criteria include input noise density vs. supply current trade-off, harmonic distortion performance under differential 2VPP loads, gain-bandwidth stability at G = +1, and SO-8 thermal resistance (θJA = 125°C/W) for continuous 4.8mA/ch operation across –40°C to +85°C.
Technical Context
The OPA2822U/2K5 employs a voltage-feedback architecture with 500MHz unity-gain bandwidth and 240MHz gain-bandwidth product, supporting stable operation from G = +1 to ≥ +20. Its low 2.0nV/√Hz input voltage noise is complemented by 1.6pA/√Hz input current noise above 10kHz, enabling high SFDR in precision analog front-ends.
Designed for differential configurations in xDSL receivers, it achieves ≤ –100dBc second-harmonic and ≤ –105dBc third-harmonic distortion at 1MHz with 2VPP differential output into ≥ 500Ω loads. Output stage delivers ±90mA linear sourcing/sinking current and supports rail-to-rail output swing within 1.2V of either supply under single +5V or ±6V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 2.0nV/√Hz - enables >14-bit dynamic range in baseband I/Q channels up to 5MHz |
| Unity-Gain Bandwidth | 500MHz - supports stable G = +1 operation for wideband active filters and transimpedance amplifiers |
| Gain-Bandwidth Product | 240MHz - ensures predictable closed-loop bandwidth scaling for G ≥ 20 configurations |
| Output Current | ±90mA - drives passive filter networks and 100Ω ADC input loads without clipping |
| Supply Current | 4.8mA per channel - allows dual-channel operation on +5V with <10mA total quiescent draw |
| Harmonic Distortion | ≤ –105dBc (3rd, 1MHz, RL ≥ 500Ω) - meets SFDR requirements for 14-bit+ ADC drivers |
| Input Common-Mode Range | ±4.8V (VS = ±6V) - supports full-scale signal handling in ±5V systems with margin |
Pinout & Package
OPA2822U/2K5 is housed in an SO-8 surface-mount package (Package Designator: D, JEDEC MS-012). Thermal resistance θJA = 125°C/W enables reliable operation at 4.8mA/ch over –40°C to +85°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+VS) | Positive Supply | Accepts +5V to +12V single supply or +6.5V max in split-supply mode |
| 2 (Out B) | Channel B Output | Delivers ±90mA into 100Ω load; supports differential output configuration with Channel A |
| 3 (–In B) | Channel B Inverting Input | DC-coupled node requiring matched impedance for bias current cancellation in inverting mode |
| 4 (+In B) | Channel B Noninverting Input | Accepts common-mode voltages from –4.8V to +4.8V (VS = ±6V); used for noninverting gain setting |
| 5 (Out A) | Channel A Output | Electrically identical to Out B; enables true differential signaling when paired with Out B |
| 6 (–In A) | Channel A Inverting Input | Used with external feedback network (e.g., 402Ω RF) to set gain in noninverting configuration |
| 7 (+In A) | Channel A Noninverting Input | Primary input for single-ended or differential input stages; referenced to system ground or mid-supply |
| 8 (–VS) | Negative Supply | Accepts 0V (single +5V) or –6.5V max; required for bipolar operation and optimal CMRR |
Key Features
| Feature | Design Value |
|---|---|
| Low Input Voltage Noise | 2.0nV/√Hz enables >14-bit dynamic range in 5MHz baseband I/Q receivers |
| High Output Drive Strength | ±90mA per channel sustains 2VPP differential output into 500Ω loads without distortion degradation |
| Wide Supply Range | +5V to +12V single supply or ±5V to ±6.5V split supply supports legacy and modern power architectures |
| Unity-Gain Stability | 500MHz bandwidth at G = +1 eliminates need for external compensation in active filter designs |
| Differential Configuration Support | Matched channel performance (crosstalk –95dBc @ 1MHz) enables near-perfect channel matching in I/Q paths |
Applications
| xDSL Differential Line Receivers | High Dynamic Range ADC Drivers |
|---|---|
Use Scenario: Conditioning upstream/downstream analog signals in ADSL/VDSL line cards before digitization. IC Role / Device Role / Timing Role: Dual-channel differential amplifier providing gain, common-mode rejection, and low-noise buffering between hybrid coupler and ADC. Use Value: 2.0nV/√Hz noise and ≤ –105dBc distortion preserve SNR for 14-bit+ converters sampling at ≥ 20MSPS. | Use Scenario: Driving the input of high-speed pipeline or sigma-delta ADCs in communications test equipment. IC Role / Device Role / Timing Role: Single-ended or fully differential driver delivering fast settling (<35ns to 0.02%) and minimal harmonic content. Use Value: ±90mA output current and 170V/µs slew rate support 2VPP full-scale steps without slewing-induced distortion. |
| Low Noise PLL Integrators | Precision Baseband I/Q Amplifiers |
Use Scenario: Integrating phase error in high-frequency PLLs for wireless infrastructure clock synthesis. IC Role / Device Role / Timing Role: Low-offset, low-drift op-amp implementing loop filter integrator with minimal voltage noise contribution. Use Value: 2.0nV/√Hz input noise and ±0.2mV max offset voltage prevent jitter accumulation and reference spurs. | Use Scenario: Amplifying in-phase and quadrature baseband signals in direct-conversion receivers. IC Role / Device Role / Timing Role: Matched dual amplifier ensuring amplitude/phase tracking between I and Q paths up to 5MHz. Use Value: –95dBc channel crosstalk and <0.03° differential phase error maintain EVM <1% in 64-QAM systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual wideband low-noise operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2686 | 1.3nV/√Hz input noise, 1.1GHz GBW, but higher 6.5mA/ch supply current and no SO-8 option | Better noise performance for ultra-low-noise preamps; less suitable for space-constrained xDSL line cards | Select OPA2686 only when sub-1.5nV/√Hz noise is mandatory and board area allows MSOP-8 or larger packages |
| THS6062 | 1.5nV/√Hz noise, 350MHz GBW, 190mA output, but specified only for ±5V operation and lacks +5V single-supply support | Higher drive capability for heavy capacitive loads; incompatible with +12V or single +5V systems | Choose THS6062 for ±5V-only designs requiring >150mA output; avoid if supply flexibility or low-quiescent design is needed |
Compared with OPA2686 and THS6062, the OPA2822U/2K5 uniquely balances 2.0nV/√Hz noise, 4.8mA/ch efficiency, SO-8 thermal performance, and +5V-to-+12V supply compatibility-making it the only dual op-amp meeting xDSL receiver specs while fitting standard PCB footprints.
Availability
OPA2822U/2K5 is available at Aetrix Electronics and suitable for xDSL line card manufacturing, high-speed data acquisition systems, and precision instrumentation requiring stable component supply with guaranteed long-term availability.
Supply support for OPA2822U/2K5 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 OPA2822U/2K5 belongs to TI's Precision High-Speed Operational Amplifier product line, engineered specifically for broadband communications infrastructure where low noise, low distortion, and supply flexibility are critical.
FAQ
What is the maximum supply voltage rating for OPA2822U/2K5?
The OPA2822U/2K5 has an absolute maximum supply voltage rating of ±6.5V for split supplies or +12.6V for single-supply operation. Operating beyond these limits risks permanent damage. The device is characterized for reliable performance from ±5V to ±6V or +5V to +12V, with quiescent current and distortion specifications validated across this full range. Always observe the absolute maximum ratings in the SBOS188E datasheet when designing power rails for OPA2822U/2K5.
Does OPA2822U/2K5 support true differential output configurations?
Yes, OPA2822U/2K5 supports true differential output configurations using its two matched amplifier channels. When configured with complementary feedback networks, it achieves –95dBc channel-to-channel crosstalk at 1MHz and <0.03° differential phase error-enabling precise I/Q signal conditioning. The matched DC and AC performance between Channel A and Channel B ensures amplitude and timing alignment critical for baseband differential signaling in OPA2822U/2K5-based designs.
What is the typical slew rate of OPA2822U/2K5 at G = +2?
The typical slew rate of OPA2822U/2K5 at G = +2 is 170V/µs under ±6V supplies (measured with a 4V step). At +5V single supply, the slew rate remains ≥120V/µs (typical), supporting fast transient response for 2VPP output steps. This high slew rate, combined with <35ns settling time to 0.02%, ensures minimal distortion in high-speed pulse and video applications using OPA2822U/2K5.
Can OPA2822U/2K5 operate from a single +5V supply?
Yes, OPA2822U/2K5 is explicitly characterized for single +5V operation, with input common-mode range extending from 1.2V to 3.8V and output swing reaching 1.3V to 3.9V (no load). Its 4.8mA/ch quiescent current and rail-swing capability make it ideal for portable and low-power instrumentation where OPA2822U/2K5 replaces rail-to-rail devices without sacrificing noise or bandwidth.
What package type is used for OPA2822U/2K5?
OPA2822U/2K5 uses the SO-8 surface-mount package (JEDEC MS-012, Package Designator D), with thermal resistance θJA = 125°C/W. This package is RoHS-compliant, tape-and-reel packaged in quantities of 2500 (orderable as /2K5), and compatible with standard reflow profiles. The SO-8 footprint ensures mechanical robustness and thermal performance superior to MSOP-8 alternatives like OPA2822E/2K5.
OPA2822U/2K5 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:
- 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
OPA2822U/2K5 FAQ
1.How can I place an order for OPA2822U/2K5 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2822U/2K5 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 OPA2822U/2K5 reliable?
The price and inventory of OPA2822U/2K5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2822U/2K5 is usually 5 days.
3.What payment methods are accepted for OPA2822U/2K5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2822U/2K5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2822U/2K5?
OPA2822U/2K5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2822U/2K5 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 OPA2822U/2K5?
For technical support, including OPA2822U/2K5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2822U/2K5 requirements.
6.How does Aetrix verify that OPA2822U/2K5 is sourced from the original manufacturer or authorized distributors?
All OPA2822U/2K5 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 OPA2822U/2K5 meets industry standards.
7.What is the process for return or replacement of OPA2822U/2K5?
All OPA2822U/2K5 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2822U/2K5, 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 OPA2822U/2K5 part is unused and in its original packaging.
Return procedure for OPA2822U/2K5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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