ADC1412D105HN-C18 - Dual 14-bit 105Msps ADC | Renesas
MPN： ADC1412D105HN-C18 ✓ 啟用中ADC1412D105HN-C18 概覽
An ADC (Analog-to-Digital Converter) is a data-conversion IC that translates continuous analog waveforms into discrete digital codes. A pipelined ADC is a high-speed architecture that resolves bits in cascaded stages using sub-ranging with digital error correction; it is the dominant architecture for sample rates between 50 MSPS and 500 MSPS because it balances speed, resolution, and silicon area better than flash or successive-approximation topologies. Within the converter taxonomy, ADC1412D105 belongs to high-speed dual-channel ADCs > multi-MSPS ADCs > data converter ICs > signal chain > semiconductor. The 14-bit resolution places it between 12-bit mid-range parts and 16-bit high-precision ADCs, suited to communications, instrumentation, and imaging systems.
Key specifications include 14-bit resolution, 2 differential input channels, 105 MSPS maximum conversion rate, 64-pin VFQFPN package, programmable CMOS or LVDS DDR digital outputs, and selectable full-scale input ranges. The pipelined multi-stage architecture supports internal reference operation and includes per-channel gain/offset calibration. The SPI-compatible serial interface configures output mode (CMOS vs LVDS DDR), input range, and test patterns without external hardware.
Typical applications span communications receivers, multi-channel data acquisition, medical imaging front-ends, radar IF sampling, and industrial test instrumentation. The dual-channel simultaneous-sampling design is well suited to I/Q demodulation in software-defined radio, diversity receivers, and phase-sensitive measurements. The 105 MSPS rate easily digitizes IF signals in communications and instrumentation receivers.
When designing with this part, allocate 64 pins for the VFQFPN exposed-pad footprint including a contiguous ground plane for thermal and electrical performance, and follow the standard JESD51-compliant PCB layout for QFN packages. Decouple AVDD and DVDD rails independently to limit digital switching noise from coupling into the analog inputs.
直接替換替代品，適用於 ADC1412D105HN-C18 — 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： ADC1412D105HN-C18 （相同外形與佔位） — 差異在於 Package, Input Type, Number of Channels, Pin Count, Sample Rate (max).
ADC1412D105HN-C1
✅ 直接替換聯絡詢價
查看資料表 →ADC1412D125HN-C18
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ADC1412D065HN-C18
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ADC1410S105HN-C1
✅ 直接替換聯絡詢價
查看資料表 →ADC14DS105AISQ/NOPB
✅ 直接替換聯絡詢價
查看資料表 →ADC1412D105HN-C18 最大額定值與電氣特性
| 解析度 | 14 bit |
| Number of Channels | 2 (dual, simultaneous sampling) |
| Conversion Rate (Max) | 105 MSPS |
| Architecture | Pipelined |
| Input Type | Differential |
| Digital Output | CMOS or LVDS DDR (programmable) |
| Serial Interface | SPI (3-wire) for configuration |
| Input Channels | 2 Input 2 Pipelined |
| 封裝 | 64-VFQFPN (9x9 mm) with exposed pad |
| 安裝類型 | Surface Mount |
| Power Consumption | Low power (optimized, per datasheet) |
| Internal Reference | Yes (per datasheet) |
ADC1412D105HN-C18 64-vfqfpn (9x9 mm) with exposed pad 腳位配置指南
ADC1412D105HN-C18（64-vfqfpn (9x9 mm) with exposed pad 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： ADC1412D105HN-C18.
請參閱 資料表 以查看完整腳位配置。
典型應用
ADC1412D105HN-C18 適用於 6 應用s: Software Defined Radio Receivers, Medical Ultrasound Imaging Front-End, Industrial Test Instrumentation, Radar IF Signal Sampling, Communications Base Station Receivers, Multi-Channel Data Acquisition Systems.
Software Defined Radio Receivers
The ADC1412D105HN-C18 is well-suited for software-defined radio (SDR) receivers because its dual simultaneous sampling at 105 MSPS digitizes I/Q signal pairs without timing skew, which is critical for baseband demodulation accuracy. With 14-bit resolution and ~78 dB dynamic range, the converter captures weak signals adjacent to strong blockers typical of crowded RF bands. The LVDS DDR output mode halves clock harmonics, lowering EMI into sensitive LNA and mixer stages on the same board. Placed between the IF filter and the FPGA demodulator, the ADC1412D105 pairs naturally with Renesas/IDT clock generators that supply low-jitter CLK+/CLK- to preserve converter SNR.
推薦
Medical Ultrasound Imaging Front-End
In multi-channel medical ultrasound systems the ADC1412D105HN-C18's simultaneous sampling across both channels allows per-channel phase alignment of beam-formed receive signals. The 105 MSPS rate captures diagnostic frequency content up to ~40 MHz without aliasing, while the 14-bit resolution preserves fine echo amplitude steps needed for tissue differentiation. The exposed-pad VFQFPN-64 package with a contiguous ground plane supports the wide channel count typical of phased-array transducers. Designed into the receive path between the TGC amplifier and the FPGA beamformer, this ADC pairs with low-noise op-amps for signal conditioning and FPGA transceivers for LVDS capture.
推薦
Industrial Test Instrumentation
Automated test equipment and high-end oscilloscope input stages depend on the ADC1412D105HN-C18's 105 MSPS dual-channel sampling for digitizing wideband analog nodes. Each converter channel delivers 14-bit resolution per measurement cycle, supporting precision waveform reconstruction across the full signal chain. The CMOS-output mode is favored in lower-frequency board layouts, while LVDS DDR is preferred at the top end of the bandwidth envelope. Used after the input attenuator and programmable gain stage, the ADC feeds an FPGA capture memory and trigger DSP.
推薦
Radar IF Signal Sampling
Pulsed-radar and FMCW receiver designs rely on intermediate-frequency (IF) sampling to extract target range and Doppler information, and the ADC1412D105HN-C18's 105 MSPS rate comfortably digitizes 30-50 MHz IF outputs from the radar mixer. Dual channels support sum-and-difference or polarization-diversity receive paths, while the SPI-configurable full-scale input range adapts to different mixer output levels. The exposed-pad VFQFPN package manages thermal dissipation during continuous sampling duty cycles typical of surveillance radar.
推薦
Communications Base Station Receivers
Multi-carrier base-station receivers place the ADC1412D105HN-C18 in the digital-IF path where 14-bit resolution and 105 MSPS sampling permit digitization of multiple adjacent carriers without cross-modulation. The dual channels support redundant or diversity receiver paths, and the LVDS DDR output cleanly interfaces to FPGA baseband DSP. The exposed-pad package's low thermal resistance supports long-on-time operation in -40C to +85C industrial enclosures.
推薦
Multi-Channel Data Acquisition Systems
Multi-channel DAQ platforms that aggregate multiple analog sensors lean on the ADC1412D105HN-C18 for per-channel timing alignment and reduced board area. Each 14-bit sample at 105 MSPS supplies sufficient resolution to resolve sub-millivolt sensor signals while the dual synchronous channels double the channel density per converter. The pin-compatible family lets designers field-configure 65, 105, or 125 MSPS variants without changing the BOM layout, easing last-minute specification changes for industrial customers.
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推薦產品摘要
工程參考資料，適用於 ADC1412D105HN-C18 — 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 | ADC1412D105HN-C1 | ADC1412D125HN-C18 | ADC1412D065HN-C18 | ADC1410S105HN-C1 | ADC14DS105AISQ/NOPB |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Texas Instruments |
| Package | 64-VFQFPN (9x9) | 64-VFQFPN (9x9) - same | 64-VFQFPN (9x9) - same | 64-VFQFPN (9x9) - same | 64-VFQFPN (9x9) - same | LQFP-48 (different) |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit |
| Number of Channels | 2 (dual, simultaneous) | 2 (dual, simultaneous) | 2 (dual, simultaneous) | 2 (dual, simultaneous) | 1 (single) | 2 (dual) |
| Max Sample Rate | 105 MSPS | 105 MSPS | 125 MSPS | 65 MSPS | 105 MSPS | 105 MSPS |
| Digital Output Mode | CMOS or LVDS DDR (programmable) | CMOS or LVDS DDR (programmable) | CMOS or LVDS DDR (programmable) | CMOS or LVDS DDR (programmable) | CMOS or LVDS DDR (programmable) | CMOS or LVDS DDR (programmable) |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
| Serial Control Interface | SPI (3-wire) | SPI (3-wire) | SPI (3-wire) | SPI (3-wire) | SPI (3-wire) | SPI (3-wire) |
主要差異化特點
- Dual simultaneous sampling at 105 MSPS per channel (對比ADC1410S105HN-C1)
- Factory-tested CMOS and LVDS DDR output on one device (對比ADC12L030CIWM/NOPB (TI 12-bit))
- SPI-programmable full-scale input range (對比Discrete fixed-range ADCs)
設計說明
The 64-VFQFPN (9x9 mm) exposed pad must be soldered to a continuous ground plane using an array of thermal vias (0.3 mm drill, 1.0 mm pitch) for both electrical reference and thermal dissipation. Place AVDD and DVDD decoupling capacitors as close as possible to each supply pin, using a 10 uF bulk tantalum plus 0.1 uF and 1 nF ceramics in parallel. Match the differential CLK+/CLK- and analog input trace lengths within 0.5 mm to maintain aperture timing accuracy at 105 MSPS per JESD51 layout guidelines for high-speed converters.
Route the LVDS DDR output pairs (D0-D13 and the DDR clock) as 100-ohm differential microstrip on a controlled-impedance stackup. Avoid right-angle bends and keep stubs shorter than 0.15 mm. Place a 100-ohm termination resistor across each LVDS pair at the FPGA receiver. The CMOS mode requires shorter traces (< 25 mm) but eliminates the LVDS termination and reduces FPGA pin count. Choose LVDS DDR above 80 MSPS to halve the clock-edge rate and reduce EMI.
Separate AVDD and DVDD rails using ferrite beads or small inductors to prevent digital switching noise from corrupting the analog reference. Estimate power consumption per channel at 105 MSPS at roughly 200 mW (verify against datasheet). Place a 22 uF bulk capacitor on each analog rail near the IC and a 4.7 uF ceramic within 2 mm of each AVDD pin. The exposed pad also aids heat removal; without continuous via stitching the junction temperature can rise 25-30 C under full load.
Do not route digital outputs adjacent to the analog input traces - cross-coupling can degrade SNR by 5-10 dB. Do not omit the SPI configuration during reset: uninitialized registers default to undefined input ranges and output modes that may draw excessive supply current. Always toggle the SPI CSB line before each transaction to avoid reading stale register data. Confirm the input clock is low-jitter (< 1 ps RMS) - phase noise directly degrades ADC SNR per the formula SNR_limit = 20*log10(Vin_rms/Clock_jitter_rms).
合規資訊
Compliance data not provided in verified web results; markers set to 'unknown' per Data Authenticity Rules. ADC1412D105HN-C18 family intended for industrial/commercial, not automotive AEC-Q100.
