CDK8307CILP64 - 12/13-bit 65MSPS Octal ADC, LVDS Output | MaxLinear
MPN： CDK8307CILP64 ✓ 啟用中CDK8307CILP64 概覽
An octal ADC is a data converter that integrates eight independent analog-to-digital conversion channels into a single silicon die. Each channel samples its analog input at the same clock edge, converting up to 65 million samples per second, and outputs the digital codes through a low-voltage differential signaling (LVDS) bus. The LVDS interface reduces EMI and supports high-speed board-to-FPGA or board-to-ASIC transmission over twisted-pair or controlled-impedance traces. Octal ADCs sit in the broader signal chain hierarchy: analog front end -> ADC -> digital processor (FPGA/ASIC/DSP) -> application. This integration reduces board area, BOM count, and channel-to-channel skew in multi-channel systems.
Key features include 12/13-bit selectable resolution, 65 MSPS maximum sample rate, 8 simultaneous sampling channels, integrated bandgap reference, serial LVDS digital outputs, low power consumption (a key feature for portable and densely-populated systems), and an SPI-compatible serial control interface for mode configuration. The 64-pin LQFP package supports standard surface-mount assembly, with the exposed-pad variant providing enhanced thermal dissipation. Pin compatibility with the broader CDK8307 family (20/40/50/65/80 MSPS grades) allows design scalability within a single PCB layout.
The CDK8307 architecture uses a proprietary pipeline structure that achieves excellent dynamic performance while minimizing power consumption per channel. Internal reference circuitry eliminates the need for external reference components, simplifying the BOM and reducing the analog front-end footprint. The serial LVDS interface operates at one or two lanes per channel, with low jitter that preserves signal integrity in cascaded systems. The SPI control port allows the host processor to configure resolution, test patterns, output format, and channel power-down modes without external hardware.
Typical applications include medical ultrasound imaging (where the octal simultaneous sampling directly maps to the 8-to-128 element transducer array), portable instrumentation, multi-channel data acquisition systems, industrial non-destructive testing (NDT), and security/surveillance imaging. The ultra-low-power profile makes it especially well suited to handheld and battery-powered imaging systems where thermal density is constrained.
A key design consideration is the LVDS data rate: at 65 MSPS with 13-bit two-lane output, the per-channel serial data rate approaches 1 Gbps, requiring controlled-impedance routing (typically 100 ohm differential), length matching within 5 ps, and AC coupling at the receiver. Decoupling the AVDD pins with both bulk and high-frequency ceramic capacitors placed as close to the pins as possible is critical to achieving the datasheet SNR/SFDR performance.
This page synthesizes distributor pricing, drop-in alternatives within the CDK8307 family, and practical design notes not consolidated in any single manufacturer document.
直接替換替代品，適用於 CDK8307CILP64 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： CDK8307CILP64 （相同外形與佔位） — 差異在於 Control Interface, Reference, Number of Channels, Resolution, Architecture.
CDK8307AILP64
✅ 直接替換聯絡詢價
查看資料表 →CDK8307BILP64
✅ 直接替換聯絡詢價
查看資料表 →CDK8307CILP40
✅ 直接替換📋 參考替代品（不在目錄中）
CDK8307EILP64
✅ 直接替換聯絡詢價
查看資料表 →CDK8307DIQ64
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
CDK8307CILP64 最大額定值與電氣特性
| 解析度 | 12/13-bit (selectable) |
| Sample Rate | 65 MSPS maximum (20/40/50/65 MSPS grades) |
| Number of Channels | 8 (simultaneous sampling) |
| Digital Output Interface | Serial LVDS |
| Input Type | Differential analog inputs |
| Reference | Internal (integrated bandgap) |
| Control Interface | SPI-compatible serial |
| 封裝 | 64-pin LQFP (LP64) |
| Architecture | Proprietary pipeline ADC |
| Power Profile | Ultra-low power (per-channel) |
| RoHS 狀態 | Compliant (per MaxLinear product page) |
| 安裝類型 | Surface Mount |
CDK8307CILP64 64-pin lqfp (lp64) 腳位配置指南
CDK8307CILP64（64-pin lqfp (lp64) 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： CDK8307CILP64.
請參閱 資料表 以查看完整腳位配置。
典型應用
CDK8307CILP64 適用於 6 應用s: Medical Ultrasound Imaging, Multi-Channel Data Acquisition Systems, Industrial Non-Destructive Testing (NDT), Portable Instrumentation and Handheld Analyzers, Phased-Array Radar and Beamforming, Security and Surveillance Imaging.
Medical Ultrasound Imaging
The CDK8307CILP64 is purpose-built for medical ultrasound systems, where its eight simultaneously-sampling ADC channels map directly to the receive channels of a 1D or 2D ultrasound transducer array. Each of the eight channels samples the returning echo at the full 65 MSPS rate, preserving phase information for beamforming in the downstream FPGA. The 12/13-bit selectable resolution lets designers trade dynamic range against data rate, while the serial LVDS output minimizes trace count on the often-crowded ultrasound probe interface board. Ultra-low per-channel power consumption enables portable cart-based scanners that previously required stationary AC-powered chassis. According to the MaxLinear datasheet, the integrated bandgap reference eliminates external reference drift over temperature, a critical concern in diagnostic imaging where calibration accuracy is regulated.
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Multi-Channel Data Acquisition Systems
In multi-channel data acquisition (DAQ) systems, the CDK8307CILP64's eight simultaneous-sampling channels digitize parallel analog signals without the inter-channel skew introduced by time-interleaved or multiplexed ADCs. The 65 MSPS per-channel rate supports vibration analysis, acoustic emission monitoring, and sonar hydrophone arrays. Serial LVDS outputs reduce the FPGA pin count to two pairs per channel, leaving sufficient FPGA I/O for additional system functions. The internal reference simplifies the BOM and improves long-term stability compared to designs with external reference ICs. The 64-pin LQFP footprint fits standard 4-layer data-acquisition PCBs, and the ultra-low power per channel enables higher channel density in a given thermal envelope. Designers should implement per-channel offset calibration in the FPGA to correct gain/offset mismatch across the eight channels.
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Industrial Non-Destructive Testing (NDT)
The CDK8307CILP64 suits phased-array industrial NDT systems, where ultrasonic transducers sweep across welds, pipelines, and structural components. The eight simultaneous channels enable the 8-to-128 element phased-array transducers commonly used in modern NDT, with the FPGA performing the electronic beam steering. The serial LVDS output's EMI immunity is critical in factory-floor environments with motor drives, welders, and variable-frequency inverters. The internal reference with low temperature drift maintains calibration across the wide ambient temperature ranges encountered in outdoor or shop-floor inspections. The ultra-low power profile enables battery-powered handheld NDT scanners for field inspections. Per the MaxLinear datasheet, the part operates from industrial temperature ranges, supporting both indoor and outdoor deployment.
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Portable Instrumentation and Handheld Analyzers
Handheld battery-powered instruments - including portable oscilloscopes, logic analyzers, spectrum analyzers, and field test equipment - benefit from the CDK8307CILP64's ultra-low per-channel power consumption. Eight channels at 65 MSPS enable a full eight-channel portable oscilloscope in a single IC, replacing multiple lower-channel-count ADCs. The 64-pin LQFP package is hand-solderable for low-volume production and reworkable in the field, an important feature for service-deployed instrumentation. The LVDS interface reduces the cable count between the analog front end and the FPGA/display processor, simplifying mechanical assembly. The integrated bandgap reference eliminates one external component, reducing the BOM and improving the MTBF of the handheld unit. The 13-bit resolution option provides more headroom than competing 10/12-bit parts.
推薦
Phased-Array Radar and Beamforming
Phased-array radar systems require multiple coherent ADC channels sampling at the same clock edge to preserve the phase relationships used in digital beamforming. The CDK8307CILP64's eight simultaneous-sampling channels, combined with a common clock input, maintain the phase coherence required across the antenna array. The 65 MSPS per-channel rate supports X-band radar IF digitization. Serial LVDS outputs reduce the board-to-board interconnect complexity when the ADC array is located near the antenna elements. The ultra-low power per channel reduces the thermal load on densely-packed array PCBs. The internal reference eliminates the per-channel reference drift that would otherwise corrupt the beamforming calibration. Multiple CDK8307CILP64s can be synchronized to a common clock for larger arrays.
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Security and Surveillance Imaging
Security imaging systems, including through-wall radar, perimeter surveillance, and concealed-weapon detection, use multi-element antenna or transducer arrays that require coherent multi-channel sampling. The CDK8307CILP64's eight simultaneous-sampling channels, ultra-low power profile, and integrated reference make it well-suited to compact, thermally-constrained security imaging systems. The LVDS output supports long-distance board-to-processor transmission with minimal EMI emission - an important consideration in security systems where RF emissions could compromise stealth. The 13-bit resolution option provides the dynamic range needed to detect small reflections from concealed objects against strong direct-path returns. The 64-pin LQFP package enables cost-effective manufacturing of security camera or scanner modules at high volumes.
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推薦產品摘要
工程參考資料，適用於 CDK8307CILP64 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | CDK8307AILP64 | CDK8307BILP64 | CDK8307CILP40 | CDK8307EILP64 | CDK8307DIQ64 |
|---|---|---|---|---|---|---|
| Package | 64-pin LQFP (LP64) | 64-pin LQFP (LP64) - same | 64-pin LQFP (LP64) - same | 64-pin LQFP (LP40) - same | 64-pin LQFP (LP64) - same | 64-pin LQFP (LP64) - same |
| Brand | MaxLinear (Exar/Cadeka) | MaxLinear | MaxLinear | MaxLinear | MaxLinear | MaxLinear |
| Sample Rate (MSPS) | 65 | 50 (-23%) | 40 (-38%) | 20 (-69%) | 80 (+23%) | 65 (lower power variant) |
| Resolution | 12/13-bit selectable | 12/13-bit | 12/13-bit | 12/13-bit | 12/13-bit | 12/13-bit |
| Number of Channels | 8 | 8 | 8 | 8 | 8 | 8 |
| Output Interface | Serial LVDS | Serial LVDS | Serial LVDS | Serial LVDS | Serial LVDS | Serial LVDS |
| Internal Reference | Yes | Yes | Yes | Yes | Yes | Yes |
| Power Profile | Ultra-low per channel | Ultra-low | Ultra-low | Ultra-low | Low (higher due to 80 MSPS) | Lowest (portable-optimized) |
| Control Interface | SPI | SPI | SPI | SPI | SPI | SPI |
| Drop-in to CDK8307CILP64 | - | Yes (lower speed) | Yes (lower speed) | Yes (lower speed, 70% floor) | Yes (higher speed) | Yes (lower-power variant) |
主要差異化特點
- Pin-compatible speed-grade family lets one PCB serve multiple sample-rate targets (對比CDK8307CILP40 (20 MSPS) and CDK8307EILP64 (80 MSPS))
- Internal bandgap reference eliminates external reference components (對比Competitor octal ADCs requiring external ADR43x or ISL21009 reference ICs)
- Ultra-low per-channel power consumption enables portable ultrasound carts (對比TI ADS527x and ADI AD9258 octal ADC families)
設計說明
Route the eight LVDS output pairs as 100-ohm differential pairs with length matching within 5 ps (approximately 1 mm at typical FR4 propagation). Place the series AC-coupling capacitors (typically 100 nF) close to the CDK8307CILP64 output pins. Match the differential impedance over the entire routed length using a 4-layer stackup with a continuous ground plane beneath the LVDS traces. This minimizes reflections and preserves the eye diagram at the FPGA receiver.
Decouple each AVDD pin with a 100 nF X7R ceramic placed as close as possible to the pin (within 2 mm), plus a 10 uF bulk capacitor on each AVDD plane. DRVDD (LVDS output supply) should be similarly decoupled. Use a ferrite bead between AVDD and DRVDD if they share a common supply rail, or use separate LDOs to isolate the analog and digital domains. Poor decoupling is the single most common cause of degraded SNR/SFDR in octal ADC layouts.
Keep the analog input traces (eight differential pairs from the TGC/LNA) physically separated from the LVDS output traces. Use a guard ground via fence between the analog input section and the LVDS output section. The clock input (CLK+/-) is a high-speed differential signal - route it with controlled impedance and length-match it to the LVDS output reference clock if synchronous sampling across multiple ADC ICs is required for the beamforming calibration.
At 65 MSPS with 13-bit two-lane LVDS output, the per-channel serial data rate approaches 1 Gbps. Verify the FPGA receiver's input bandwidth and IBIS model margin before committing to layout. Consider using FPGA internal LVDS input serializers (ISERDES) with dynamic phase alignment to capture the incoming data; the CDK8307CILP64 supports source-synchronous clocking that simplifies the FPGA capture logic.
At full 65 MSPS across all 8 channels, the CDK8307CILP64's ultra-low-power profile is a key advantage. Estimated: total package dissipation is well under 1 W at full rate (per the AAN-18 application note), enabling fanless operation in portable ultrasound carts. However, derate the ambient operating temperature by 10 C if the part is mounted adjacent to a heat-generating FPGA or power supply, and ensure the LQFP-64 thermal pad is soldered to a copper pour for additional heat spreading.
合規資訊
RoHS and REACH compliance per MaxLinear product page. Not AEC-Q100 qualified (the part is designed for medical ultrasound and industrial NDT, not automotive). Lead-free (Pb-free) terminal finish per LQFP package. Halogen-free status not explicitly stated in the verified data.
