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Analog Devices Inc. LTC2206IUK#PBF
- Part No.:
- LTC2206IUK#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
LTC2206IUK#PBF.pdf
- Description:
- IC ADC 16BIT PIPELINED 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,693
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Product details
Overview
LTC2206IUK#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 ±4LSB integral nonlinearity over –40°C to +85°C. Used in cellular base station receivers and spectrum analyzers requiring undersampling of RF inputs.
For engineers reviewing the LTC2206IUK#PBF datasheet, LTC2206IUK#PBF pinout, LTC2206IUK#PBF application, or LTC2206IUK#PBF equivalent, this page delivers verified electrical specs, package mapping, real-world timing behavior, PGA-configurable input ranges (1.5VP-P or 2.25VP-P), and validated alternatives for high-frequency data acquisition systems.
Technical Context
The LTC2206IUK#PBF implements a 16-bit pipelined ADC architecture with integrated sample-and-hold, programmable gain amplifier (PGA), and internal 2.5V bandgap reference. Its 80Msps sampling rate supports Nyquist and undersampling modes up to 700MHz input frequency.
It accepts differential analog inputs (AIN+/AIN–) and differential or single-ended encode clocks (ENC+/ENC–), with optional clock duty cycle stabilizer and internal dither. Digital outputs are CMOS-compatible, configurable for offset binary or 2's complement format via MODE pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 96.3dB theoretical SNR; enables precise amplitude quantization in wideband communications. |
| Sampling Rate | 80Msps - supports real-time capture of IF signals up to 40MHz Nyquist bandwidth or higher via undersampling. |
| Noise Floor | 78.2dBFS - ensures >12.8 effective bits at low input frequencies; critical for weak-signal detection in receivers. |
| SFDR | 100dB (at 5MHz) - suppresses harmonics and spurs, preserving signal integrity in dense spectral environments. |
| Full-Power Bandwidth | 700MHz - allows direct digitization of L-band and S-band RF signals without external downconversion. |
| Input Range | Selectable 1.5VP-P (PGA=1) or 2.25VP-P (PGA=0) - matches varying signal chain gain profiles without external attenuation. |
| Power Dissipation | 725mW (typical) - optimized for thermal management in compact RF front-end modules. |
| Jitter | 80fsRMS aperture jitter - limits SNR degradation to <0.1dB at 140MHz input, enabling clean undersampling. |
Pinout & Package
48-pin 7mm × 7mm plastic QFN package with exposed thermal pad (Pin 49 = GND). Requires soldering of exposed pad for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+, AIN– | Differential analog input | Accepts 1.5VP-P or 2.25VP-P differential signal; common-mode voltage fixed at 1.25V (VCM pin). |
| ENC+, ENC– | Differential encode clock input | Edge-triggered sampling; supports PECL/LVDS/TTL/CMOS; optional duty cycle stabilizer improves timing margin. |
| D0–D15 | Parallel CMOS digital output bus | 16-bit MSB-first data; output swing configurable from 0.5V to 3.6V via OVDD supply. |
| CLKOUT+, CLKOUT– | Data valid strobe outputs | Complementary clock-aligned signals indicate valid data window; used for synchronous latching. |
| 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). |
| SHDN | Power shutdown control | Active-high disables analog circuitry and places digital outputs in high-impedance state; <0.2mW standby power. |
| MODE | Output format & duty cycle stabilizer select | Voltage-programmable: 0V (offset binary, DCS off), VDD (2's complement, DCS off), or 1/3VDD/2/3VDD (DCS on). |
| OF | Over/underflow flag | Active-high indicates input exceeded full-scale range; enables automatic gain control loop response. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PGA front end | Configurable 1× or 1.5× gain eliminates need for external amplifiers in multi-stage receiver chains. |
| Internal dither generator | Reduces harmonic distortion and improves SFDR by >10dB at low input levels when enabled (DITH=high). |
| Optional clock duty cycle stabilizer | Enables robust operation with asymmetric clocks (e.g., from FPGA PLLs), maintaining AC performance at full 80Msps. |
| Out-of-range indicator (OF) | Real-time overflow detection supports closed-loop AGC without external comparators or FPGA logic overhead. |
| Flexible digital output interface | Supports offset binary or 2's complement formats and 0.5V–3.6V CMOS swing-interfacing directly with FPGAs or ASICs. |
| Ultralow 80fsRMS jitter | Preserves SNR in undersampling applications up to 250MHz input, eliminating need for ultra-low-jitter external clocks. |
Applications
| Cellular Base Station Receiver | Spectrum Analyzer Front End |
|---|---|
Use Scenario: Digitizing 70MHz–250MHz IF signals in LTE/FDD-TDD macrocell transceivers. IC Role / Device Role / Timing Role: High-speed ADC capturing wide instantaneous bandwidth for digital predistortion and channel estimation. Use Value: 700MHz bandwidth and 100dB SFDR enable direct IF sampling without image-reject filtering, reducing BOM count by 3+ components. |
Use Scenario: Real-time FFT-based spectral analysis of RF signals from 10MHz to 250MHz. IC Role / Device Role / Timing Role: Primary digitizer feeding FPGA-based signal processing pipeline with deterministic latency (7 cycles). Use Value: 78.2dBFS noise floor and internal dither ensure accurate amplitude measurement of low-level spurs below –90dBc. |
| Aerospace Radar Signal Capture | Automated Test Equipment (ATE) |
Use Scenario: Capturing pulsed L-band radar returns (1–2GHz aliased to baseband) in EW systems. IC Role / Device Role / Timing Role: Undersampling ADC synchronized to pulse repetition interval with sub-ns aperture jitter control. Use Value: 80fsRMS jitter and 700MHz bandwidth allow clean time-of-flight resolution <1ns without external clock conditioning. |
Use Scenario: High-accuracy waveform digitization in production test systems for RF ICs and power amplifiers. IC Role / Device Role / Timing Role: Reference-grade ADC validating ENOB, SFDR, and INL/DNL per IEEE 1241 standards. Use Value: ±4LSB INL and ±1LSB DNL (no missing codes) over temperature ensure traceable metrology-grade measurements. |
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; 75dBFS SNR; requires external reference; no integrated PGA. | Lacks on-chip gain control and dither; needs external op-amp for variable input scaling. | Choose when reference flexibility and lower power (530mW) outweigh PGA convenience. |
| LTC2207IUK#PBF | 16-bit, 105Msps; identical pinout/package; same PGA, dither, and DC specs; 13% higher power (900mW). | Same PCB layout; supports higher IF sampling rates but increases thermal load and clock generation complexity. | Choose when system requires >80Msps throughput and can accommodate higher power and jitter-critical clock design. |
Compared with AD9268BCPZ-80, LTC2206IUK#PBF offers integrated PGA and dither for simplified front-end design, while LTC2207IUK#PBF provides higher sample rate in identical footprint-enabling scalable platform design across performance tiers without layout change.
Availability
LTC2206IUK#PBF is available at Aetrix Electronics and suitable for cellular infrastructure, spectrum monitoring, radar signal capture, and automated test equipment requiring stable component supply across extended industrial temperature ranges.
Supply support for LTC2206IUK#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, and industrial markets since 1965.
The LTC2206IUK#PBF belongs to ADI's high-speed precision ADC product line, designed specifically for demanding RF/IF digitization in communications infrastructure where dynamic range, jitter immunity, and thermal stability are critical.
FAQ
What is the operating temperature range of the LTC2206IUK#PBF?
The LTC2206IUK#PBF is rated for industrial operation from –40°C to +85°C. This is confirmed in the Absolute Maximum Ratings table and applies to all DC and AC specifications including INL (±4.5LSB), DNL (±1LSB), and SFDR (100dB at 5MHz). The "I" grade designation explicitly denotes this extended temperature range.
Does the LTC2206IUK#PBF require an external reference voltage?
No, the LTC2206IUK#PBF includes an internal 2.5V bandgap reference. Tying the SENSE pin to VDD activates it, setting a full-scale range of 2.25VP-P (PGA = 0). An external 2.5V or 1.25V reference may be used, but is not required-the internal reference is fully characterized over temperature and supports all specified performance.
How does the PGA function affect the input range of the LTC2206IUK#PBF?
The PGA pin configures two input ranges: logic-low selects 2.25VP-P (unity gain), logic-high selects 1.5VP-P (1.5× gain). Both maintain the same 1.25V common-mode voltage (VCM pin). This allows matching to different signal chain gains without external attenuators or amplifiers, preserving SNR and simplifying layout.
Can the LTC2206IUK#PBF operate with single-ended clock inputs?
Yes, the ENC+ and ENC– inputs accept single-ended signals. Driving ENC+ with a sine wave, TTL, or CMOS signal while AC-coupling and bypassing ENC– to ground (with 0.1μF) is explicitly supported. The internal 1.6V bias on both pins enables robust single-ended operation without external bias networks.
What is the purpose of the RAND pin on the LTC2206IUK#PBF?
The RAND pin enables digital output randomization: when high, D1–D15 are XORed with D0 (LSB), reducing deterministic spectral content on digital lines. This minimizes radiated emissions and crosstalk in dense PCB layouts. The original data is recovered by reapplying XOR between D0 and other bits at the receiver.
LTC2206IUK#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:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-QFN (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2206IUK#PBF FAQ
1.How can I place an order for LTC2206IUK#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2206IUK#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 LTC2206IUK#PBF reliable?
The price and inventory of LTC2206IUK#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2206IUK#PBF is usually 5 days.
3.What payment methods are accepted for LTC2206IUK#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2206IUK#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2206IUK#PBF?
LTC2206IUK#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2206IUK#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 LTC2206IUK#PBF?
For technical support, including LTC2206IUK#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2206IUK#PBF requirements.
6.How does Aetrix verify that LTC2206IUK#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2206IUK#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 LTC2206IUK#PBF meets industry standards.
7.What is the process for return or replacement of LTC2206IUK#PBF?
All LTC2206IUK#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2206IUK#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 LTC2206IUK#PBF part is unused and in its original packaging.
Return procedure for LTC2206IUK#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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