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Texas Instruments OPA2683IDCNR
- Part No.:
- OPA2683IDCNR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8
- Datasheet:
-
OPA2683IDCNR.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,272
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Product details
Overview
OPA2683IDCNR from Texas Instruments is a dual, very low-power, current-feedback operational amplifier in SOT-23-8 package, delivering 150MHz bandwidth at G = +2, 110mA output current, and 1.9mA total supply current across ±2.5V to ±6V or +5V to +12V supplies - used in low-power broadcast video drivers and differential ADC input stages.
For engineers reviewing the OPA2683IDCNR datasheet, OPA2683IDCNR pinout, OPA2683IDCNR application, or OPA2683IDCNR equivalent, key selection criteria include its CFBPLUS architecture for gain-stable bandwidth, single-supply operation down to +4V, shutdown capability (in MSOP-10 only), and verified performance into 100Ω loads with < –65dBc harmonic distortion at 5MHz.
Technical Context
The OPA2683IDCNR implements a CFBPLUS architecture with an internally closed-loop input buffer stage that linearizes inverting-input impedance, enabling near-constant bandwidth across gains from +1 to +20 and reducing harmonic distortion versus conventional low-power CFB amplifiers.
This architecture isolates AC performance from gain-setting resistor variations, supports DC-coupled and AC-coupled configurations, and maintains stable transimpedance gain (700kΩ min) and low input bias current drift (±12 µV/°C) over –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (G = +2) | 150MHz typical - enables high-fidelity video signal amplification up to NTSC/PAL frequencies without gain-dependent roll-off. |
| Output Current | 110mA min sourcing - drives ±4VPP into 100Ω load on ±5V supplies, supporting doubly terminated 50Ω cables and multi-load video distribution. |
| Supply Current | 1.9mA total max at ±5V - achieves ultra-low power consumption while retaining wideband performance for battery-powered or thermally constrained systems. |
| Harmonic Distortion | < –65dBc 2nd-harmonic at 5MHz - meets broadcast video differential gain/phase specs (0.13% / 0.06°) for professional camera front-ends. |
| Input Voltage Noise | 4.4nV/√Hz typ above 1MHz - preserves SNR in high-frequency active filter and ADC driver applications where noise folding dominates. |
| Common-Mode Range | ±3.75V min on ±5V - allows rail-to-rail input swing within 1.25V of either supply, simplifying level-shifting in single-supply +5V systems. |
| Slew Rate | 400V/µs min at G = +2 - supports fast transient response for pulse-amplified signals in summing and line-driver topologies. |
Pinout & Package
SOT-23-8 package: 8-pin, surface-mount, small-outline transistor package with exposed thermal pad (not electrically connected); footprint compatible with industry-standard SOT-23-8 land pattern; operating junction temperature range –40°C to +125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Delivers full-swing output (±4.1V min into 1kΩ) with 0.007Ω closed-loop output impedance at 100kHz. |
| 2 (–IN A) | Inverting input A | Low, linearized impedance (~5Ω) due to internal buffer - minimizes gain-dependent bandwidth variation and distortion. |
| 3 (+IN A) | Noninverting input A | 50kΩ || 2pF input impedance - supports high-Z sensor interfaces and precision DC-coupled configurations. |
| 4 (–VS) | Negative supply rail | Accepts –2.5V to –6V; supports true dual-supply operation with independent ground reference. |
| 5 (+VS) | Positive supply rail | Accepts +2.5V to +6V or single +5V to +12V; internal biasing ensures stable performance across full voltage range. |
| 6 (+IN B) | Noninverting input B | Independent channel input; identical electrical characteristics to Pin 3 - enables matched dual-channel designs. |
| 7 (–IN B) | Inverting input B | Identical low-impedance node to Pin 2 - allows synchronous dual-channel summing or differential drive without inter-channel skew. |
| 8 (OUT B) | Amplifier B output | Electrically identical to Pin 1; channel-to-channel isolation >70dB at 5MHz ensures minimal crosstalk in multi-channel systems. |
Key Features
| Feature | Design Value |
|---|---|
| CFBPLUS architecture | Internally buffered inverting input delivers gain-independent bandwidth retention - eliminates need for feedback resistor re-tuning across gain settings. |
| Ultra-low quiescent current | 1.9mA total at ±5V - enables dual-channel wideband amplification in power-sensitive portable video equipment and IoT edge nodes. |
| High-output drive into 100Ω | 110mA sourcing capability - directly drives standard video termination without external buffers, reducing BOM count and board area. |
| Single-supply compatibility | +5V to +12V operation with 1.25V input headroom - supports simplified power architecture in embedded vision and industrial imaging systems. |
| Low distortion at 5MHz | < –65dBc 2nd-harmonic - satisfies broadcast-grade video fidelity requirements (NTSC/PAL) without post-compensation circuitry. |
Applications
| Low-Power Broadcast Video Drivers | Professional Cameras |
|---|---|
Use Scenario: Driving composite video signals over 75Ω coaxial cable in portable camcorders and HDMI transmitter front-ends. IC Role / Device Role / Timing Role: Dual-channel current-feedback amplifier configured as DC-coupled G = +2 driver with matched output impedance. Use Value: Delivers 0.13% differential gain and 0.06° differential phase error at NTSC frequencies while consuming only 1.9mA total supply current. | Use Scenario: Conditioning analog RGB/YUV outputs from CMOS image sensors before digitization in broadcast-grade camera heads. IC Role / Device Role / Timing Role: Dual-channel differential ADC input driver with rail-to-rail input common-mode range and low noise floor. Use Value: 4.4nV/√Hz input voltage noise and < –65dBc harmonic distortion preserve dynamic range and color fidelity at 5MHz pixel clock harmonics. |
| Multichannel Summing Amplifiers | Differential ADC Input Drivers |
Use Scenario: Combining multiple analog sensor outputs (e.g., audio preamps, vibration monitors) into a single high-bandwidth data acquisition channel. IC Role / Device Role / Timing Role: Dual inverting summing amplifier with low input impedance mismatch and fast settling (≤60ns to 0.05%). Use Value: Linearized inverting input impedance ensures consistent gain-bandwidth product across summed channels, eliminating frequency response peaking. | Use Scenario: Converting single-ended sensor outputs to fully differential signals for high-resolution SAR or sigma-delta ADCs in test equipment. IC Role / Device Role / Timing Role: Precision dual-channel differential driver with matched propagation delay and low output impedance (0.007Ω). Use Value: Channel-to-channel isolation >70dB at 5MHz suppresses common-mode noise coupling, improving ENOB by ≥1.5 bits in 16-bit+ systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2684IDR | Higher 250MHz bandwidth at G = +2, 3.5mA supply current, SO-8 package only - no SOT-23-8 variant. | Targeted at higher-speed DSL line drivers and RF IF amplification where bandwidth >200MHz is required. | Select OPA2684IDR when system-level bandwidth demand exceeds 150MHz and PCB space permits SO-8 footprint. |
| OPA2691IDGKR | 400V/µs slew rate, 320MHz bandwidth at G = +2, 5.3mA supply current, VSSOP-8 package - optimized for high-slew applications. | Used in high-definition video line drivers and fast-pulse instrumentation where transient fidelity dominates power budget. | Choose OPA2691IDGKR when driving capacitive loads >100pF or requiring sub-10ns rise time with minimal overshoot. |
Compared with OPA2684IDR and OPA2691IDGKR, the OPA2683IDCNR provides optimal tradeoff of bandwidth (150MHz), power (1.9mA), and package size (SOT-23-8) for space-constrained, battery-operated video and imaging systems where thermal density and board area are critical constraints.
Availability
OPA2683IDCNR is available at Aetrix Electronics and suitable for low-power broadcast video drivers, professional cameras, multichannel summing amplifiers, and differential ADC input drivers requiring stable component supply across industrial temperature range.
Supply support for OPA2683IDCNR 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 headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and digital signal processors for industrial, automotive, and communications markets.
The OPA2683 belongs to TI's high-speed, low-power operational amplifier product line, engineered specifically for wideband, low-distortion signal conditioning in space- and power-constrained video, imaging, and communications infrastructure.
FAQ
What is the maximum operating supply voltage for the OPA2683IDCNR?
The OPA2683IDCNR supports dual-supply operation from ±2.5V to ±6V and single-supply operation from +4V to +12V. Absolute maximum ratings specify ±6.5VDC on each supply rail; exceeding this may cause permanent damage. For reliable long-term operation, TI recommends staying within the specified operating range of ±6V or +12V.
Does the OPA2683IDCNR support power-down functionality?
No, the OPA2683IDCNR in SOT-23-8 package does not include power-down (shutdown) pins. Shutdown capability is exclusive to the MSOP-10 variant (e.g., OPA2683IDGST). The OPA2683IDCNR operates continuously when powered and requires external switching of supply rails for power gating.
What is the input impedance at the inverting terminal of the OPA2683IDCNR?
The inverting input impedance of the OPA2683IDCNR is approximately 5Ω (typical, DC open-loop), enabled by its CFBPLUS internal buffer architecture. This low, linearized impedance is fundamental to its gain-stable bandwidth behavior and distinguishes it from traditional voltage-feedback op amps with high-impedance inputs.
Can the OPA2683IDCNR drive a 50Ω doubly-terminated transmission line?
Yes, the OPA2683IDCNR can drive a 50Ω doubly-terminated line: it delivers ±4VPP into 100Ω (i.e., two 50Ω terminations in series) on ±5V supplies with 110mA sourcing capability. Output swing remains within specification, and harmonic distortion stays below –65dBc at 5MHz, meeting broadcast line-driver requirements.
What is the thermal resistance θJA for the OPA2683IDCNR package?
The OPA2683IDCNR uses the SOT-23-8 package with a specified junction-to-ambient thermal resistance (θJA) of 150°C/W under standard JEDEC conditions. This value assumes a 1-inch² copper pad on a 1-layer board; actual thermal performance improves significantly with enhanced PCB copper area and thermal vias.
OPA2683IDCNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- Differential
- Slew Rate:
- 540V/µs
- Gain Bandwidth Product:
- 200 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 µA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 1.88mA (x2 Channels)
- Current - Output / Channel:
- 150 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
OPA2683IDCNR FAQ
1.How can I place an order for OPA2683IDCNR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2683IDCNR 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 OPA2683IDCNR reliable?
The price and inventory of OPA2683IDCNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2683IDCNR is usually 5 days.
3.What payment methods are accepted for OPA2683IDCNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2683IDCNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2683IDCNR?
OPA2683IDCNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2683IDCNR 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 OPA2683IDCNR?
For technical support, including OPA2683IDCNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2683IDCNR requirements.
6.How does Aetrix verify that OPA2683IDCNR is sourced from the original manufacturer or authorized distributors?
All OPA2683IDCNR 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 OPA2683IDCNR meets industry standards.
7.What is the process for return or replacement of OPA2683IDCNR?
All OPA2683IDCNR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2683IDCNR, 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 OPA2683IDCNR part is unused and in its original packaging.
Return procedure for OPA2683IDCNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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