LTC2206CUK - 16-Bit 80Msps ADC, 48-QFN | Analog Devices
部品番号: LTC2206CUK ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $78.68 | $78.68 |
| 10 | $73.5 | $735.00 |
| 100 | $65.2 | $6,520.00 |
| 500 | $56.8 | $28,400.00 |
| 1,000 | $49.5 | $49,500.00 |
LTC2206CUK 概要
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous-time continuous-amplitude analog signals into discrete-time discrete-amplitude digital codes. The LTC2206 sits within the high-speed pipelined ADC category, a sub-class of data converters that trade latency for very high sample rates using multi-stage switched-capacitor architectures. In the system hierarchy it belongs to data acquisition ICs -> converters -> ADC/DAC -> signal chain -> mixed-signal semiconductors.
The LTC2206CUK achieves 77 dB SNR and 100 dB SFDR at 70 MHz input, with internal dither for low-distortion performance. The 48-QFN package with EP enables a low thermal resistance path to PCB ground. The device offers CMOS, LVDS, or DDR LVDS output modes for flexible interface with FPGAs and ASICs. The pipelined architecture provides 1.5-cycle latency, suitable for many communications and instrumentation tasks where latency is not the primary constraint.
Typical applications include cellular base-station receiver IF digitizers, radar signal processing chains, broadband communications test equipment, spectral analysis and imaging systems, and software-defined radio front-ends. The wide 700 MHz input bandwidth allows direct IF sampling without preceding mixers or band-pass filters in many architectures.
When designing with the LTC2206CUK, the engineer must treat the analog input as a differential 100-ohm interface, place 0.1 uF and 10 uF decoupling capacitors close to each supply pin, and provide a clean low-noise clock source. The exposed pad must be soldered to a low-impedance ground plane. Output data rates above 80 Msps require careful length-matched PCB traces if LVDS is used.
This page synthesizes distributor pricing, drop-in same-package alternatives, application guidance, and design notes that complement the manufacturer datasheet for engineers selecting a 16-bit 80 Msps ADC for the 48-QFN (7x7) footprint.
ドロップイン代替品: LTC2206CUK — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: LTC2206CUK （同一形状・フットプリント） — 相違点: Operating Temperature Range, RoHS Status, Resolution, Package, SFDR.
クイック比較ツール — 並列比較する代替部品を選択:
LTC2206CUK#PBF
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LTC2206CUK-14
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LTC2206IUK#TR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LTC2206IUK
✅ ドロップイン✓ 在庫あり
$24.95 / 個
データシートを見る →LTC2207CUK
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LTC2206CUK-14#PBF
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LTC2206CUK 最大定格＆電気的特性
| 分解能 | 16 bits |
| Sample Rate | 80 Msps |
| Number of Channels | 1 |
| Architecture | Pipelined |
| Input Type | Differential/Single-Ended |
| Input Frequency Range | Up to 700 MHz |
| SNR | 77 dB at 70 MHz input |
| SFDR | 100 dB |
| 電源電圧 | 3.135 V to 3.465 V |
| 動作温度範囲 | 0C to +70C (commercial grade, C suffix) |
| Output Interface | CMOS / LVDS / DDR LVDS (selectable) |
| パッケージ | 48-QFN (7x7 mm) with exposed pad |
| 実装タイプ | Surface Mount |
| ピン数 | 48 |
| Reference | Internal |
| Input Range | Optimized via internal PGA (1 Vp-p to 2 Vp-p) |
| RoHS ステータス | Compliant (#PBF suffix indicates lead-free) |
LTC2206CUK 48-qfn (7x7 mm) with exposed pad ピン配置ガイド
LTC2206CUK (48-qfn (7x7 mm) with exposed pad パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: LTC2206CUK.
詳細は データシート をご参照ください。
主な用途
LTC2206CUK の用途: 6 件s: Cellular Base-Station IF Digitizer, Radar and Electronic Warfare Signal Processing, Broadband Test and Measurement Instrumentation, Software-Defined Radio (SDR) Front-End, Medical Imaging and Ultrasound Receivers, Industrial Data Acquisition Systems.
Cellular Base-Station IF Digitizer
The LTC2206CUK is well suited to cellular base-station IF digitizing where 16-bit dynamic range and 700 MHz input bandwidth allow direct sampling of intermediate-frequency signals without preceding mixers. Its 80 Msps sample rate supports multi-carrier GSM, WCDMA, and LTE receiver chains with sufficient Nyquist margin to relax anti-aliasing filter requirements. The 77 dB SNR at 70 MHz preserves EVM performance for digital demodulation, while the selectable LVDS outputs drive directly into FPGAs for baseband processing. Differential 100-ohm input impedance simplifies matching to SAW filters and baluns.
おすすめ
Radar and Electronic Warfare Signal Processing
Wideband radar receivers and electronic-warfare systems demand high dynamic range at IF frequencies, and the LTC2206CUK's 16-bit 80 Msps architecture with 100 dB SFDR and 700 MHz bandwidth addresses these requirements directly. The pipelined architecture with internal dither achieves low intermodulation distortion across the full Nyquist band, supporting pulse compression and Doppler processing. Differential analog inputs reject common-mode noise from RF front ends. The exposed pad QFN provides robust thermal performance for the high instantaneous power dissipation during continuous radar reception.
おすすめ
Broadband Test and Measurement Instrumentation
Spectrum analyzers, digitizers, and automated test equipment require ADCs with wide analog input bandwidth, high spurious-free dynamic range, and accurate amplitude performance. The LTC2206CUK's 700 MHz input bandwidth supports direct RF sampling in modern oscilloscopes and signal analyzers up to several hundred MHz carrier frequencies. The 100 dB SFDR enables low-floor spectrum measurements without external filtering. LVDS output mode eases layout to FPGAs performing FFT-based spectrum analysis, and the internal reference eliminates calibration drift associated with external voltage references.
おすすめ
Software-Defined Radio (SDR) Front-End
Software-defined radio receivers benefit from the LTC2206CUK's high sample rate and wide analog bandwidth, which allow direct digitization of HF/VHF signals for software demodulation. The 80 Msps sample rate handles wideband waveforms including DVB-T, DAB, and multi-channel FM broadcast bands. The 16-bit resolution preserves dynamic range needed for demodulating weak signals in the presence of strong adjacent blockers. LVDS or DDR LVDS output modes simplify connection to high-performance SDR FPGA processing fabrics.
おすすめ
Medical Imaging and Ultrasound Receivers
Medical ultrasound and other imaging systems use multi-channel receiver arrays requiring high-fidelity digitizers at IF frequencies. The LTC2206CUK's 16-bit resolution captures the wide dynamic range of reflected ultrasound signals, while its 80 Msps sample rate supports typical 5-20 MHz IF frequencies with substantial oversampling for noise shaping. Low-latency pipelined architecture enables real-time beamforming across multiple synchronized channels. The compact 48-QFN package fits high-channel-count receiver boards where board area is at a premium.
おすすめ
Industrial Data Acquisition Systems
High-speed industrial data acquisition systems for vibration analysis, condition monitoring, and rotating machinery diagnostics leverage the LTC2206CUK's wide analog bandwidth and high dynamic range. The 16-bit 80 Msps performance captures fast transient events and high-order harmonics from rotating equipment. Differential inputs reject common-mode noise present in industrial environments with motor drives and switching power supplies. The commercial 0C to +70C temperature range suits factory-floor enclosures with controlled ambient temperature.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: LTC2206CUK — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | LTC2206CUK#PBF | LTC2206CUK-14 | LTC2206IUK#TR | LTC2206IUK | LTC2207CUK | LTC2206CUK-14#PBF |
|---|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 48-QFN (7x7) | 48-QFN (7x7) - same | 48-QFN (7x7) - same | 48-QFN (7x7) - same | 48-QFN (7x7) - same | 48-QFN (7x7) - same | 48-QFN (7x7) - same |
| Resolution | 16 bits | 16 bits | 14 bits | 16 bits | 16 bits | 16 bits | 14 bits |
| Sample Rate | 80 Msps | 80 Msps | 80 Msps | 80 Msps | 80 Msps | 105 Msps | 80 Msps |
| Temperature Grade | Commercial (0C to +70C) | Commercial | Commercial | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial | Commercial |
| Lead-Free / RoHS | Depends on suffix (CUK = standard; CUK#PBF = Pb-free) | Yes (#PBF) | Depends on suffix | Depends on suffix | Depends on suffix | Depends on suffix | Yes (#PBF) |
| Input Bandwidth | 700 MHz | 700 MHz | 700 MHz | 700 MHz | 700 MHz | 700 MHz | 700 MHz |
| Output Interface | CMOS / LVDS / DDR LVDS | CMOS / LVDS / DDR LVDS | CMOS / LVDS / DDR LVDS | CMOS / LVDS / DDR LVDS | CMOS / LVDS / DDR LVDS | CMOS / LVDS / DDR LVDS | CMOS / LVDS / DDR LVDS |
主な差別化要因
- Same-family upgrade path to 105 Msps with zero PCB rework （vs LTC2207CUK)
- Industrial temperature grade option in identical footprint （vs LTC2206IUK)
- Wider input bandwidth than competing 16-bit 80 Msps ADCs （vs LTC2162IUK#PBF)
設計ノート
Decouple each AVDD and DVDD pin with a 0.1 uF ceramic capacitor placed within 2 mm of the pin, plus a 10 uF bulk ceramic or tantalum capacitor on each supply rail. Place all capacitors on the same PCB layer as the ADC to minimize via inductance. The exposed pad (EP) must be soldered to a continuous low-impedance ground plane with multiple thermal vias (typically 9-16 vias) for heat dissipation and electrical ground return.
Route the analog inputs (INA+, INA-) as a 100-ohm differential pair with length matching within 0.5 mm. Keep analog input traces away from digital output traces and clock traces to minimize crosstalk. The ADC clock signal should be routed with 50-ohm controlled impedance and kept short. When using LVDS or DDR LVDS output modes, length-match all data and clock output pairs to within 1 mm to preserve setup/hold margins at the receiver.
Do not exceed the absolute maximum sample rate of 80 Msps (or 105 Msps for LTC2207); operation beyond this will degrade SNR. Ensure the analog input common-mode voltage is set within the PGA range (typically 1.6 V for 3.3 V supply); incorrect common-mode bias severely degrades SNR. The EN (encode) clock must have low jitter (<1 ps RMS) to achieve the datasheet SNR spec - use a dedicated clock generator such as AD9516 or AD9517 rather than a generic FPGA clock.
Estimated: at 80 Msps with 700 MHz input bandwidth, the ADC's analog input presents approximately 100 ohms differential; an external balun or transformer (e.g., ADT1-1WT or similar) is typically used to convert single-ended 50-ohm sources to differential. The -3 dB bandwidth of the front-end network should be >500 MHz to preserve the wideband flatness required for cellular and radar IF sampling applications.
コンプライアンス情報
RoHS and REACH compliance applies to the #PBF suffix variant. The LTC2206CUK is commercial grade, not AEC-Q100 qualified; choose an industrial-grade ADC variant for automotive applications. Lead-free confirmed via #PBF suffix.