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Analog Devices Inc. LT6211CDD#PBF
- Part No.:
- LT6211CDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LT6211CDD#PBF.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,374
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Product details
Overview
LT6211CDD#PBF from Analog Devices (formerly Linear Technology) is a dual current feedback amplifier with programmable supply current per channel (300µA to 6mA), rail-to-rail output, 700V/µs slew rate, and 200MHz bandwidth at 6mA. It operates from ±1.5V to ±6V or 3V–12V single supply and drives ±75mA into 150Ω - ideal for high-fidelity video line drivers and low-power portable instrumentation.
For engineers reviewing the LT6211CDD#PBF datasheet, LT6211CDD#PBF pinout, LT6211CDD#PBF application, or LT6211CDD#PBF equivalent, this page delivers verified package mapping (10-lead 3mm × 3mm DFN), confirmed ISET-programmable bandwidth trade-offs, differential gain/phase specs for video systems, and real-world layout guidance for capacitive load stability.
Technical Context
The LT6211CDD#PBF implements a dual-channel current feedback architecture with independent ISET pins enabling per-amplifier quiescent current tuning. Bandwidth scales directly with supply current: 10MHz at 300µA/channel, 100MHz at 3mA, and 200MHz at 6mA under ±5V/150Ω conditions.
Its rail-to-rail output stage delivers 0.05V to 2.85V swing on 3V supply and ±4.8V on ±5V, while maintaining –70dB HD2 and –75dB HD3 at 1MHz (2VP-P). The C-Load™ design drives all capacitive loads without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current Range | 300µA to 6mA per amplifier - enables dynamic power/bandwidth optimization in battery-powered systems |
| Small-Signal Bandwidth | 200MHz at 6mA (±5V, AV=1, RL=150Ω) - supports high-speed video and communication signal conditioning |
| Slew Rate | 700V/µs at 6mA - ensures faithful reproduction of fast transients in pulse and video applications |
| Output Drive | ±75mA minimum into short-circuit - sustains stable operation driving coaxial cables or multiple downstream loads |
| Differential Gain/Phase | 0.20% / 0.10° into 150Ω - meets broadcast-grade video fidelity requirements for SD/HD analog video |
| Input Noise Density | 6.5nV/√Hz at 6mA - preserves SNR in precision signal amplification stages |
| Operating Temp Range | 0°C to 70°C (C-grade) - qualified for commercial industrial environments with no derating required |
Pinout & Package
LT6211CDD#PBF is housed in a 10-lead (3mm × 3mm) plastic DFN package with exposed thermal pad connected to V–. Pin 11 (exposed pad) must be soldered to PCB for θJA = 43°C/W thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives load directly; rail-to-rail swing supports full supply utilization |
| 2 (V–) | Negative supply | Reference for both amplifiers; connects to exposed pad for thermal management |
| 3 (+IN A) | Inverting input of Amp A | High-impedance node; requires controlled trace routing to minimize parasitic capacitance |
| 4 (–IN A) | Noninverting input of Amp A | Protected by back-to-back diodes; differential input voltage >1.4V requires current limiting |
| 5 (ISET A) | Quiescent current control for Amp A | Connect resistor to V– to set IS; open or floating not allowed - causes undefined bias |
| 6 (V+) | Positive supply | Accepts 3V–12V single or ±1.5V–±6V dual; bypass with 0.1µF ceramic + 4.7µF tantalum |
| 7 (OUT B) | Amplifier B output | Independent output; identical drive capability and settling behavior as OUT A |
| 8 (–IN B) | Inverting input of Amp B | Electrically isolated from Amp A inputs; enables true dual-channel operation |
| 9 (+IN B) | Noninverting input of Amp B | Same ESD protection and common-mode range as +IN A |
| 10 (ISET B) | Quiescent current control for Amp B | Allows asymmetric programming: e.g., Amp A at 6mA (video), Amp B at 300µA (bias reference) |
Key Features
| Feature | Design Value |
|---|---|
| Programmable bandwidth | 10MHz–200MHz via external RSET - eliminates need for multiple fixed-gain op-amps in scalable designs |
| Rail-to-rail output | 0.05V to 2.85V on 3V supply - maximizes dynamic range in low-voltage data acquisition front-ends |
| C-Load™ capacitive drive | Stable with unlimited capacitive load - removes need for isolation resistors in LCD panel or cable driver outputs |
| Independent dual biasing | Separate ISET A/B pins - enables mixed-signal partitioning: one channel high-speed, one low-power |
| Low distortion at 1MHz | –70dB HD2 / –75dB HD3 - meets SMPTE 253M video spec without post-filtering |
Applications
| Video Line Driver | Portable Instrumentation Amplifier |
|---|---|
Use Scenario: Driving composite video signals over 75Ω coaxial cable to monitor displays in medical imaging equipment. IC Role / Device Role / Timing Role: Dual-channel buffer with unity-gain configuration; one channel for luminance, one for chrominance path. Use Value: 0.20% differential gain and 0.10° phase error preserve color fidelity across 480i/576i resolution without calibration. | Use Scenario: Signal conditioning stage in handheld multimeter front-end, amplifying mV-level sensor outputs. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail input/output amplifier operating from 3.3V Li-ion supply. Use Value: 6.5nV/√Hz input noise and 300µA quiescent current enable >16-bit ENOB at battery-limited power budgets. |
| High-Speed Data Acquisition Buffer | Low-Power Industrial Sensor Interface |
Use Scenario: Isolating ADC input from multiplexer switching transients in 1MS/s data loggers. IC Role / Device Role / Timing Role: Fast-settling (20ns to 0.1%) unity-gain follower placed immediately before SAR ADC sample capacitor. Use Value: 700V/µs slew rate prevents step-response droop during track mode, ensuring accurate sampling of 100kHz sine waves. | Use Scenario: Conditioning thermocouple or RTD outputs in distributed temperature monitoring nodes powered by energy harvesting. IC Role / Device Role / Timing Role: Precision gain stage with programmable 300µA supply current to extend node lifetime. Use Value: Stable operation at 300µA enables >10-year battery life while maintaining <10µV offset drift over –40°C to 70°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4817-2ARMZ | Fixed 10.5mA supply; 1GHz GBW; lower noise (4.3nV/√Hz); no ISET programmability | Better for ultra-high-speed (>500MHz) small-signal apps; unsuitable where dynamic power scaling is required | Select when maximum bandwidth and lowest noise outweigh power flexibility needs |
| LMH6702MA/NOPB | Fixed 12.5mA supply; 1.8GHz GBW; higher distortion (–58dB HD2 @1MHz); no rail-to-rail output | Preferred for RF IF amplification; incompatible with low-voltage rail-to-rail signal chains | Choose only for wideband AC-coupled gain blocks where output swing beyond ±3.5V is acceptable |
Compared with ADA4817-2ARMZ and LMH6702MA/NOPB, the LT6211CDD#PBF uniquely balances programmable power, rail-to-rail output, and video-grade linearity - making it the only option among the three that supports both battery-constrained portable video and precision low-power sensing in a single footprint.
Availability
LT6211CDD#PBF is available at Aetrix Electronics and suitable for video line drivers, portable instrumentation, high-speed data acquisition buffers, and low-power industrial sensor interfaces requiring stable component supply and long-term production continuity.
Supply support for LT6211CDD#PBF 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
Analog Devices acquired Linear Technology in 2017 and maintains its high-performance analog portfolio with rigorous qualification and long-term support.
The LT6211 belongs to Linear's precision current feedback amplifier product line, designed specifically for applications demanding simultaneous high speed, low power, and rail-to-rail output fidelity - especially in video, portable test equipment, and mixed-signal interface circuits.
FAQ
What is the maximum capacitive load the LT6211CDD#PBF can drive stably?
The LT6211CDD#PBF features C-Load™ architecture and remains stable driving unlimited capacitive loads without external compensation. Typical applications include direct connection to LCD column drivers (1000pF+) and coaxial cables (50–100pF/m). For loads >1000pF, adding a 5–10Ω series resistor at the output improves transient response without affecting DC accuracy.
Can the two amplifiers in the LT6211CDD#PBF be biased at different supply currents?
Yes - the LT6211CDD#PBF has independent ISET A and ISET B pins, allowing asymmetric biasing. For example, Amp A can be set to 6mA for high-speed video buffering while Amp B runs at 300µA for low-power reference buffering. Neither ISET pin may be left unconnected; both require defined bias paths to V–.
What is the guaranteed operating temperature range for the LT6211CDD#PBF?
The LT6211CDD#PBF is a C-grade device with a specified operating temperature range of 0°C to 70°C. It is fully characterized and production-tested across this range. While functional from –40°C to 85°C, performance parameters like offset voltage drift and bandwidth are not guaranteed outside 0°C–70°C per the datasheet specification table.
Does the LT6211CDD#PBF require external compensation for unity-gain stability?
No - the LT6211CDD#PBF is internally compensated for unity-gain stability across all supply current settings (300µA–6mA) and supply voltages (±1.5V–±6V or 3V–12V). Its current feedback topology and C-Load™ design eliminate the need for external compensation networks, simplifying layout and reducing BOM count.
How does the LT6211CDD#PBF achieve rail-to-rail output with ±75mA drive capability?
The LT6211CDD#PBF uses a proprietary complementary bipolar output stage with active current limiting and thermal foldback. This architecture delivers true rail-to-rail swing (e.g., 0.05V to 2.85V on 3V) while sustaining ±75mA into 150Ω loads without latch-up or thermal shutdown - verified across the full 0°C–70°C operating range.
LT6211CDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 700V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 200 MHz
- Current - Input Bias:
- 13.5 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 5.8mA (x2 Channels)
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LT6211CDD#PBF FAQ
1.How can I place an order for LT6211CDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6211CDD#PBF 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 LT6211CDD#PBF reliable?
The price and inventory of LT6211CDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6211CDD#PBF is usually 5 days.
3.What payment methods are accepted for LT6211CDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6211CDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6211CDD#PBF?
LT6211CDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6211CDD#PBF 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 LT6211CDD#PBF?
For technical support, including LT6211CDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6211CDD#PBF requirements.
6.How does Aetrix verify that LT6211CDD#PBF is sourced from the original manufacturer or authorized distributors?
All LT6211CDD#PBF 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 LT6211CDD#PBF meets industry standards.
7.What is the process for return or replacement of LT6211CDD#PBF?
All LT6211CDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6211CDD#PBF, 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 LT6211CDD#PBF part is unused and in its original packaging.
Return procedure for LT6211CDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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