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Texas Instruments OPA2822E/2K5
- Part No.:
- OPA2822E/2K5
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2822E/2K5.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,459
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Product details
Overview
OPA2822E/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 3rd-harmonic distortion at 1MHz (RL ≥ 500Ω), and 90mA output current per channel, enabling clean signal conditioning in baseband I/Q receiver channels up to 5MHz with >14-bit dynamic range.
For engineers reviewing the OPA2822E/2K5 datasheet, OPA2822E/2K5 pinout, OPA2822E/2K5 application, or OPA2822E/2K5 equivalent, key selection criteria include low-noise performance under single +5V or ±6V operation, differential configuration stability, harmonic distortion vs. load resistance, and MSOP-8 thermal limitations (θJA = 150°C/W).
Technical Context
The OPA2822E/2K5 employs a voltage-feedback architecture with unity-gain stability and a 500MHz small-signal bandwidth (G = +1, ±6V). Its design supports both noninverting (e.g., G = +2) and inverting (e.g., G = –1) configurations using matched feedback networks, with gain-bandwidth product specified at 240MHz (G ≥ 20) and large-signal bandwidth of 27MHz (G = +2, 2VPP).
It achieves exceptional distortion performance via low input bias current (±100nA max), high open-loop gain (100dB min), and precise common-mode rejection (110dB min), enabling accurate differential signaling in xDSL receivers where channel-to-channel crosstalk must remain ≤ –95dBc at 1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 2.0nV/√Hz (typ, f > 10kHz): enables ultra-low-noise front-end amplification for 14-bit+ ADC interfaces |
| Small-Signal Bandwidth | 400MHz (G = +1, ±6V): supports wideband signal acquisition without phase degradation |
| Output Current | ±90mA (min, linear operation): drives passive filters or 100Ω loads directly without external buffering |
| Harmonic Distortion | ≤ –105dBc (3rd-harmonic, 1MHz, RL ≥ 500Ω): ensures SFDR > 100dB for high-fidelity baseband I/Q channels |
| Supply Current | 4.8mA/ch (typ, ±6V): balances low power with high-speed performance in dual-channel designs |
| Input Offset Voltage | ±0.2mV (max, VCM = 0V): minimizes DC error in precision integrators and PLL loop filters |
| Common-Mode Rejection | 110dB (min, VCM = ±1V): maintains accuracy in noisy mixed-signal environments |
Pinout & Package
OPA2822E/2K5 is housed in an 8-pin MSOP package (DGK), with exposed pad for thermal enhancement. The package measures 3.0mm × 3.0mm × 1.0mm and supports surface-mount reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (–In A) | Inverting input, Channel A | Accepts differential input signals; requires impedance matching (e.g., 54.9Ω) for source termination in inverting mode |
| 2 (+In A) | Noninverting input, Channel A | DC-biased reference point; matched impedance required for bias current cancellation |
| 3 (Out A) | Output, Channel A | Delivers up to ±90mA into 100Ω; closed-loop output impedance is 0.01Ω at 100kHz |
| 4 (–VS) | Negative supply rail | Supports ±5V to ±6.5V operation; absolute max rating is –6.5V |
| 5 (+VS) | Positive supply rail | Supports +5V to +12V single-supply or ±6.5V dual-supply; max quiescent current is 12.0mA (both ch) |
| 6 (–In B) | Inverting input, Channel B | Independent second channel input; channel-to-channel crosstalk is –95dBc at 1MHz |
| 7 (+In B) | Noninverting input, Channel B | Enables fully differential I/Q amplification with matched noise and distortion profiles |
| 8 (Out B) | Output, Channel B | Symmetric performance to Out A; differential output swing reaches ±4.7V (no load, ±6V) |
Key Features
| Feature | Design Value |
|---|---|
| Low input voltage noise | 2.0nV/√Hz enables high-resolution signal capture in 14-bit+ ADC driver applications |
| Unity-gain stable wideband operation | 500MHz small-signal bandwidth allows direct use in G = +1 configurations without compensation |
| Differential distortion optimization | –105dBc 3rd-harmonic (RL ≥ 500Ω) supports >14-bit dynamic range in I/Q receiver channels |
| Single-supply compatibility | Operates from +5V to +12V with input/output swing within 1.2V of rails, simplifying power architecture |
| High output drive capability | ±90mA per channel eliminates need for external buffers when driving passive filters or 100Ω loads |
Applications
| xDSL Differential Line Receivers | High Dynamic Range ADC Drivers |
|---|---|
Use Scenario: Amplifying differential analog signals from twisted-pair xDSL lines before digitization. IC Role / Device Role / Timing Role: Low-noise, low-distortion differential receiver stage with matched channel performance. Use Value: Enables >14-bit effective resolution by maintaining –105dBc 3rd-harmonic distortion and <0.03° differential phase error at PAL video frequencies. |
Use Scenario: Driving the input of high-speed, high-resolution ADCs in communications test equipment. IC Role / Device Role / Timing Role: Wideband, low-noise buffer between analog front-end and sampling circuitry. Use Value: Delivers 400MHz bandwidth and 2.0nV/√Hz noise to preserve SNR in 14-bit+ converters operating up to 5MHz. |
| Low Noise PLL Integrators | Precision Baseband I/Q Amplifiers |
Use Scenario: Implementing loop filters in frequency synthesizers requiring minimal voltage noise contribution. IC Role / Device Role / Timing Role: Precision integrator with low offset (±0.2mV) and drift (5µV/°C) in PLL feedback paths. Use Value: Reduces phase noise accumulation by limiting integrator noise floor to 2.0nV/√Hz across loop bandwidth. |
Use Scenario: Amplifying in-phase and quadrature baseband signals in software-defined radio receivers. IC Role / Device Role / Timing Role: Dual-channel, matched-gain amplifier ensuring amplitude and phase coherence between I/Q paths. Use Value: Achieves near-perfect channel match with <–95dBc crosstalk and identical distortion profiles for <0.1% image rejection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual wideband op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2686 | Lower input noise (1.3nV/√Hz), but lower output current (±65mA) and narrower bandwidth (200MHz G=+2) | Better suited for ultra-low-noise preamplifier stages where drive strength is secondary | Select OPA2686 only if noise dominates over output drive and bandwidth requirements |
| THS6062 | Higher slew rate (1800V/µs), but higher input noise (4.5nV/√Hz) and no guaranteed unity-gain stability | Preferred for pulse-amplification applications requiring extreme speed over noise fidelity | Choose THS6062 only for transient-heavy signals where distortion tolerance exceeds –90dBc |
Compared with OPA2686 and THS6062, the OPA2822E/2K5 uniquely balances 2.0nV/√Hz noise, 90mA drive, and unity-gain stability-making it the only option among the three qualified for xDSL receiver front-ends demanding simultaneous low noise, high linearity, and differential robustness.
Availability
OPA2822E/2K5 is available at Aetrix Electronics and suitable for xDSL infrastructure, high-speed data acquisition systems, and precision instrumentation requiring stable component supply, consistent parametric performance across temperature, and long-term manufacturability assurance.
Supply support for OPA2822E/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 leader specializing in analog and embedded processing technologies, with decades of expertise in high-performance op-amps and signal-chain solutions.
The OPA2822E/2K5 belongs to TI's precision wideband op-amp product line, engineered specifically for communications infrastructure applications requiring low-noise, low-distortion, and differential signal integrity in xDSL, optical networking, and high-resolution data conversion systems.
FAQ
What is the maximum supply voltage for OPA2822E/2K5?
The OPA2822E/2K5 supports a maximum dual-supply voltage of ±6.5V or a single-supply voltage up to +12.6V. Absolute maximum ratings specify ±6.5V on each rail; exceeding this risks permanent damage. Operation at ±6V is typical for AC performance characterization, while +5V single-supply operation is validated for input/output swing and distortion metrics in the datasheet.
Does OPA2822E/2K5 support true differential input and output operation?
Yes - the OPA2822E/2K5 is explicitly designed for differential configurations. Its matched dual channels, low channel-to-channel crosstalk (–95dBc at 1MHz), and symmetric distortion performance (e.g., –105dBc 3rd-harmonic for both channels) enable precise I/Q amplification. The datasheet includes dedicated differential test circuits (Figures 10–14) confirming performance up to 5MHz with >14-bit dynamic range.
What is the thermal resistance (θJA) of the OPA2822E/2K5 in its MSOP-8 package?
The OPA2822E/2K5 in the MSOP-8 (DGK) package has a junction-to-ambient thermal resistance (θJA) of 150°C/W, as specified in the Thermal Characteristics table. This value assumes standard JEDEC 2-layer board conditions. For sustained 90mA output current per channel, thermal design must ensure junction temperature remains ≤ +150°C, especially under +12V single-supply operation.
Can OPA2822E/2K5 be used in single +5V applications with rail-to-rail input/output?
No - the OPA2822E/2K5 is not a rail-to-rail input/output device. In +5V operation, inputs operate within 1.2V of either rail (1.2V to 3.8V), and outputs swing from 1.3V to 3.9V (no load). While not rail-to-rail, this 2.6VPP usable swing is sufficient for many single-supply ADC driver and baseband amplifier applications, as confirmed in the VS = +5V Electrical Characteristics table.
What layout considerations are critical for achieving –105dBc distortion with OPA2822E/2K5?
Achieving –105dBc 3rd-harmonic distortion requires strict adherence to layout guidelines: symmetric trace routing for differential pairs, ground plane isolation beneath the MSOP-8 exposed pad, low-inductance supply decoupling (0.1µF ceramic + 6.8µF tantalum per rail), and feedback resistors ≤ 402Ω to minimize resistor-induced noise. The datasheet emphasizes that distortion degrades rapidly with poor grounding or mismatched impedances.
OPA2822E/2K5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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-VSSOP
OPA2822E/2K5 FAQ
1.How can I place an order for OPA2822E/2K5 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2822E/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 OPA2822E/2K5 reliable?
The price and inventory of OPA2822E/2K5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2822E/2K5 is usually 5 days.
3.What payment methods are accepted for OPA2822E/2K5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2822E/2K5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2822E/2K5?
OPA2822E/2K5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2822E/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 OPA2822E/2K5?
For technical support, including OPA2822E/2K5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2822E/2K5 requirements.
6.How does Aetrix verify that OPA2822E/2K5 is sourced from the original manufacturer or authorized distributors?
All OPA2822E/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 OPA2822E/2K5 meets industry standards.
7.What is the process for return or replacement of OPA2822E/2K5?
All OPA2822E/2K5 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2822E/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 OPA2822E/2K5 part is unused and in its original packaging.
Return procedure for OPA2822E/2K5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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