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Analog Devices Inc. LTC2206CUK#PBF
- Part No.:
- LTC2206CUK#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
LTC2206CUK#PBF.pdf
- Description:
- IC ADC 16BIT PIPELINED 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,438
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Product details
Overview
LTC2206CUK#PBF from Analog Devices (acquired Linear Technology) is a 16-bit, 80Msps high-speed analog-to-digital converter optimized for digitizing wide dynamic range signals up to 700MHz full-power bandwidth. It features 78.2dBFS noise floor, 100dB spurious-free dynamic range (SFDR), and ultralow 80fsRMS aperture jitter-enabling undersampling in RF receiver front-ends for cellular base stations and spectrum analyzers.
For engineers reviewing the LTC2206CUK#PBF datasheet, LTC2206CUK#PBF pinout, LTC2206CUK#PBF application, or LTC2206CUK#PBF equivalent, key selection criteria include its differential input support (AIN+/AIN−), programmable gain amplifier (PGA) with 1.5VP-P/2.25VP-P ranges, separate OVDD output supply (0.5V–3.6V), and 48-pin 7mm × 7mm QFN package with exposed thermal pad.
Technical Context
The LTC2206CUK#PBF implements a 16-bit pipelined ADC architecture with integrated sample-and-hold, internal reference generator, and correction logic. Its PGA front end allows real-time input range optimization between 1.5VP-P (gain = 1.5) and 2.25VP-P (gain = 1), while the clock input accepts differential (ENC+/ENC−) or single-ended signals with optional duty cycle stabilization.
Digital outputs are CMOS-compatible with configurable format (offset binary or 2's complement via MODE pin), data randomization (RAND), and dithering (DITH). The device supports out-of-range detection (OF), output enable (OE), and shutdown control (SHDN), all operating from a single 3.3V analog supply and independent OVDD for level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 96.3dB theoretical SNR and precise quantization for high-fidelity signal capture. |
| Sample Rate | 80Msps - supports Nyquist sampling of baseband signals up to 40MHz or undersampling of IF/RF bands up to 700MHz. |
| Noise Floor | 78.2dBFS - enables detection of low-level signals in presence of strong interferers in communications receivers. |
| SFDR | 100dB (at 5MHz) - suppresses harmonics and spurs critical for spectral purity in ATE and spectrum analysis. |
| Aperture Jitter | 80fsRMS - limits sampling uncertainty, preserving SNR at high input frequencies (e.g., >140MHz). |
| Input Bandwidth | 700MHz - accommodates direct RF sampling without external anti-alias filtering for IF-digitization architectures. |
| Power Dissipation | 725mW - balances performance and thermal management in compact RF subsystems. |
| Supply Voltage | 3.3V analog (VDD), 0.5V–3.6V digital output (OVDD) - enables interface compatibility with FPGA I/O banks at multiple voltage levels. |
Pinout & Package
Package: 48-lead 7mm × 7mm plastic QFN with exposed thermal pad (Pin 49 = GND), θJA = 29°C/W, suitable for high-density RF PCB layouts requiring low-inductance grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+, AIN− | Differential analog input | Accepts ±1.125V or ±0.75V common-mode signals; 700MHz bandwidth enables direct RF sampling. |
| ENC+, ENC− | Differential encode clock input | Sampling triggered on ENC+ rising edge; supports PECL/LVDS/TTL/CMOS; optional duty cycle stabilizer improves timing margin. |
| D0–D15 | Parallel CMOS digital outputs | 16-bit MSB-first data bus; output swing set by OVDD (0.5V–3.6V); OE pin controls tri-state for shared bus interfacing. |
| CLKOUT+, CLKOUT− | Data valid strobes | Complementary outputs toggling at 80MHz; used to latch D0–D15 with minimal skew (±0.6ns). |
| PGA | Programmable gain amplifier control | Logic-high selects 1.5× gain (1.5VP-P input range); logic-low selects unity gain (2.25VP-P range) for dynamic range optimization. |
| SHDN | Power-down control | Active-high assertion reduces power to 0.2mW and places outputs in high-impedance state for system-level power gating. |
| OF | Over/underflow indicator | Asserted high when input exceeds full-scale range-critical for automatic gain control (AGC) feedback loops. |
| VCM | 1.25V common-mode bias output | Provides stable reference for differential input drivers; requires ≥2.2μF bypass capacitor to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow aperture jitter (80fsRMS) | Preserves SNR above 100MHz input frequencies-essential for LTE/WiMAX IF sampling where phase noise directly impacts EVM. |
| Configurable input range (1.5VP-P / 2.25VP-P) | Enables optimal dynamic range matching to signal chain gain distribution without external attenuators or amplifiers. |
| Internal dither and output randomization | Reduces harmonic distortion and digital switching noise coupling into analog sections-improves SFDR in dense mixed-signal environments. |
| Separate OVDD supply (0.5V–3.6V) | Allows direct interfacing with 1.8V, 2.5V, or 3.3V FPGA I/O banks without level translators, simplifying board design. |
| Out-of-range flag (OF) and shutdown (SHDN) | Supports closed-loop AGC and power-aware system architectures-reduces latency in adaptive receiver designs. |
| 48-pin QFN with exposed thermal pad | Enables efficient heat dissipation at 725mW while maintaining compact footprint for space-constrained RF modules. |
Applications
| Cellular Base Station Receiver | Spectrum Analyzer Front-End |
|---|---|
Use Scenario: Digitizing 70MHz–250MHz IF signals from multi-carrier GSM/LTE transceivers with simultaneous channel monitoring. IC Role / Device Role / Timing Role: High-speed ADC capturing wide instantaneous bandwidth; aperture jitter <100fs ensures EVM compliance under modulation. Use Value: 100dB SFDR prevents intermodulation distortion from adjacent carriers; PGA adjusts input range to match variable RF gain stages. | Use Scenario: Real-time FFT-based frequency domain analysis of broadband signals up to 250MHz with 64k-point resolution. IC Role / Device Role / Timing Role: Precision digitizer feeding FPGA-based DSP pipeline; low noise floor enables detection of weak signals buried in noise floor. Use Value: 78.2dBFS noise floor and 700MHz bandwidth allow direct sampling without image-reject filters; CLKOUT timing simplifies data capture synchronization. |
| ATE Test Instrumentation | Imaging System Digitizer |
Use Scenario: High-accuracy waveform capture in automated test equipment for RF component characterization (e.g., filter group delay, amplifier linearity). IC Role / Device Role / Timing Role: Reference-grade ADC providing traceable amplitude and phase measurements; DC specs (±4LSB INL) ensure measurement fidelity. Use Value: ±1LSB DNL guarantees no missing codes-critical for histogram-based linearity testing; dither option improves SFDR repeatability across units. | Use Scenario: Converting analog video or ultrasound echo signals with wide dynamic range and low distortion requirements. IC Role / Device Role / Timing Role: High-fidelity digitizer preserving signal integrity in medical or industrial imaging pipelines; low harmonic distortion avoids artifact generation. Use Value: 100dB SFDR eliminates spurious artifacts in reconstructed images; 16-bit resolution supports >90dB contrast ratio in ultrasound beamforming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9268BCPZ-80 | 16-bit, 80Msps; 78dB SNR, 90dB SFDR; LVDS outputs; 3.3V only OVDD; no PGA | Lacks programmable gain and flexible OVDD range-requires external gain stages and level translation for mixed-voltage systems | Select when LVDS interface and lower power (500mW) are prioritized over input flexibility and CMOS compatibility |
| LTC2205CUK#PBF | 16-bit, 65Msps; same pinout, PGA, and feature set; 77dB SNR, 95dB SFDR; 600mW power | Lower sample rate limits IF bandwidth to ~32MHz; reduced SFDR impacts multi-tone spurious rejection | Select for cost-sensitive or thermally constrained designs where 65Msps suffices and PCB layout reuse is required |
Compared with AD9268BCPZ-80 and LTC2205CUK#PBF, the LTC2206CUK#PBF uniquely combines 80Msps throughput, 100dB SFDR, and on-chip PGA-enabling simplified RF receiver front-ends with fewer external components and greater dynamic range adaptability.
Availability
LTC2206CUK#PBF is available at Aetrix Electronics and suitable for cellular infrastructure, test instrumentation, and spectrum analysis systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LTC2206CUK#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving aerospace, communications, industrial, and healthcare markets.
The LTC2206CUK#PBF belongs to ADI's high-speed precision ADC product line, designed specifically for demanding RF and IF digitization applications where wide bandwidth, low noise, and high spurious-free dynamic range are essential.
FAQ
What is the maximum analog input frequency supported by the LTC2206CUK#PBF?
The LTC2206CUK#PBF supports a full-power analog input bandwidth of 700MHz, enabling direct undersampling of RF signals up to this frequency. This specification is measured with RS ≤ 25Ω source impedance and applies across the full 0°C to 70°C operating temperature range, making the LTC2206CUK#PBF suitable for wideband IF digitization in communications receivers and spectrum analyzers.
Does the LTC2206CUK#PBF require an external reference voltage?
No-the LTC2206CUK#PBF includes an internal 2.5V bandgap reference. Connecting the SENSE pin to VDD activates this internal reference, setting a full-scale ADC range of 2.25VP-P (with PGA = 0). An external 2.5V or 1.25V reference may be used if higher accuracy or temperature stability is required, but it is not mandatory for standard operation of the LTC2206CUK#PBF.
How does the PGA function affect the input range of the LTC2206CUK#PBF?
The PGA pin on the LTC2206CUK#PBF selects between two differential input voltage ranges: logic-low configures unity gain (2.25VP-P full-scale), while logic-high enables 1.5× gain (1.5VP-P full-scale). This allows dynamic adjustment of input sensitivity to match varying signal amplitudes in the front-end-optimizing SNR without external amplification-and is confirmed in the datasheet's "PGA Front End" feature list and AC specifications tables.
Can the LTC2206CUK#PBF interface directly with a 1.8V FPGA I/O bank?
Yes-the LTC2206CUK#PBF supports OVDD from 0.5V to 3.6V, allowing direct connection to 1.8V FPGA I/O banks without level-shifting circuitry. When OVDD = 1.8V, the digital outputs (D0–D15, OF, CLKOUT±) meet 1.8V logic thresholds (VOH ≥ 1.79V, VOL ≤ 0.1V), as verified in the "DIGITAL INPUTS AND DIGITAL OUTPUTS" section of the datasheet for the LTC2206CUK#PBF.
What is the purpose of the RAND pin on the LTC2206CUK#PBF?
The RAND pin on the LTC2206CUK#PBF enables digital output randomization: when asserted high, bits D1–D15 are XORed with D0 (LSB), reducing deterministic spectral content in the digital output bus. This minimizes radiated emissions and crosstalk coupling into sensitive analog sections-a documented feature in the "FEATURES" list and "PIN FUNCTIONS" section for the LTC2206CUK#PBF.
LTC2206CUK#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 80M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 3.135V ~ 3.465V
- Voltage - Supply, Digital:
- 3.135V ~ 3.465V
- Features:
- PGA
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 48-QFN (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2206CUK#PBF FAQ
1.How can I place an order for LTC2206CUK#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2206CUK#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 LTC2206CUK#PBF reliable?
The price and inventory of LTC2206CUK#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2206CUK#PBF is usually 5 days.
3.What payment methods are accepted for LTC2206CUK#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2206CUK#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2206CUK#PBF?
LTC2206CUK#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2206CUK#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 LTC2206CUK#PBF?
For technical support, including LTC2206CUK#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2206CUK#PBF requirements.
6.How does Aetrix verify that LTC2206CUK#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2206CUK#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 LTC2206CUK#PBF meets industry standards.
7.What is the process for return or replacement of LTC2206CUK#PBF?
All LTC2206CUK#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2206CUK#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 LTC2206CUK#PBF part is unused and in its original packaging.
Return procedure for LTC2206CUK#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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