IDTADC1212D080HN-C18 - 12-bit 80MSPS Dual ADC | Renesas
部品番号: IDTADC1212D080HN-C18 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $21.4 | $21.40 |
| 10 | $18.85 | $188.50 |
| 100 | $14.6 | $1,460.00 |
| 500 | $12.1 | $6,050.00 |
| 1,000 | $10.45 | $10,450.00 |
IDTADC1212D080HN-C18 概要
What is a pipelined ADC? A pipelined analog-to-digital converter is a high-speed ADC architecture that processes samples through multiple cascaded low-resolution stages, each stage resolving a few bits and feeding a residue to the next. Unlike successive-approximation (SAR) ADCs that need one conversion per bit, pipelined ADCs achieve much higher sample rates (tens to hundreds of MSPS) at modest power, making them the dominant architecture for communications, imaging, and instrumentation. Within the broader taxonomy: ADC -> data converter -> mixed-signal IC -> semiconductor.
Key specifications include 12-bit resolution with ENOB typically near 10-11 bits at Nyquist, dual analog inputs with independent sample-and-hold stages, CMOS-compatible digital outputs, and LVDS/CMOS selectable output modes depending on family variant. The 64-VFQFPN 9x9 mm exposed-pad package provides a thermal resistance low enough to dissipate the typical 250-400 mW per channel without external heatsinking, while the exposed pad enables direct PCB top-layer ground pour soldering.
In circuit topology, the ADC1212D typically accepts differential analog inputs centered on a common-mode voltage (often 0.9V to 1.1V), driven by a high-bandwidth ADC driver op-amp such as the THS4631 or ADA4932. The clock input accepts LVCMOS/LVDS-compatible differential clocks, and a stable low-jitter clock source (such as a dedicated PLL or crystal oscillator) is required to keep aperture-delay variation low.
Typical applications include multi-channel digital oscilloscopes, medical ultrasound beamforming front-ends, software-defined radio (SDR) baseband digitizers, and industrial non-destructive-testing imaging arrays. The dual-channel architecture also makes it attractive for I/Q demodulation chains in radar and Wi-Fi front-ends where matched-channel performance is critical.
When designing in this converter, ensure the analog input common-mode voltage matches the ADC's internal reference, place the ADC driver op-amp within 100 mils of the analog input pins, and flood the package exposed pad with a continuous ground plane to meet the thermal dissipation budget.
This page synthesizes distributor pricing, drop-in compatible same-package variants from the Renesas/IDT ADC1212D family, and practical design notes not consolidated in any single manufacturer datasheet.
ドロップイン代替品: IDTADC1212D080HN-C18 — 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: IDTADC1212D080HN-C18 （同一形状・フットプリント） — 相違点: Package, Resolution.
クイック比較ツール — 並列比較する代替部品を選択:
IDTADC1213S080HN-C18
✅ ドロップイン📋 参考代替品（カタログ未掲載）
IDTADC1213D080HN/C1:5
✅ ドロップイン📋 参考代替品（カタログ未掲載）
IDTADC1212D080HN/C1:5
✅ ドロップイン📋 参考代替品（カタログ未掲載）
IDTADC1213D080HN-C1
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADC1012D080HN/C1:5
✅ ドロップイン✓ 在庫あり
$12.1 / 個
データシートを見る →IDTADC1212D080HN-C18 最大定格＆電気的特性
| 分解能 | 12 bit |
| Number of Channels | 2 (Dual) |
| サンプリングレート | 80 MSPS per channel |
| Architecture | Pipelined |
| Input Type | Differential (per channel) |
| パッケージ | 64-VFQFPN (9x9 mm) with exposed pad |
| 実装タイプ | Surface Mount |
| Data Interface | CMOS / LVDS (variant-dependent) |
| ピン数 | 64 |
| 動作温度範囲 | -40C to +85C (industrial, -C18 suffix) |
| RoHS ステータス | Compliant |
| Lead-Free / Pb-Free | Yes |
IDTADC1212D080HN-C18 64-vfqfpn (9x9 mm) with exposed pad ピン配置ガイド
IDTADC1212D080HN-C18 (64-vfqfpn (9x9 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: IDTADC1212D080HN-C18.
詳細は データシート をご参照ください。
主な用途
IDTADC1212D080HN-C18 の用途: 6 件s: Digital Oscilloscope Front-End, Software-Defined Radio (SDR) Baseband Digitizer, Medical Ultrasound Beamformer, Multi-Channel Data-Acquisition System, Radar I/Q Demodulator, Communications Test & Measurement.
Digital Oscilloscope Front-End
The IDTADC1212D080HN-C18 dual-channel 80 MSPS architecture is well matched to two-channel digital oscilloscope front-ends where matched timing between channels avoids post-capture resampling. Two simultaneous 12-bit sample streams at 80 MSPS provide 40 MHz of Nyquist bandwidth per channel, suitable for capturing transient events in benchtop and modular oscilloscope designs. The 64-VFQFPN exposed pad simplifies thermal management at 250-400 mW per channel dissipation, and CMOS-compatible outputs feed directly into low-cost FPGAs implementing trigger and decimator logic.
おすすめ
Software-Defined Radio (SDR) Baseband Digitizer
The IDTADC1212D080HN-C18 simultaneously digitizes the I and Q baseband streams of an SDR receiver, replacing two discrete single-channel ADCs with one IC. The dual channels sample at 80 MSPS each, providing 40 MHz of alias-protected bandwidth that covers the IF outputs of typical SAW-filtered SDR front-ends. Low aperture-jitter variance preserves phase integrity between I and Q channels, which is critical for demodulation accuracy in Wi-Fi, LTE, and proprietary radio links.
おすすめ
Medical Ultrasound Beamformer
Each IDTADC1212D080HN-C18 digitizes two transducer channels in a phased-array ultrasound beamformer, where channel-count scalability and matched-conversion timing directly affect beam-steering resolution. At 80 MSPS per channel, the ADC oversamples the 2-15 MHz transducer bandwidth by 5x to 40x, supporting harmonic imaging and doppler processing. Low-power CMOS outputs connect directly to front-end FPGAs that perform digital beamforming before the data is forwarded over LVDS links to the back-end processor.
おすすめ
Multi-Channel Data-Acquisition System
In industrial multi-channel DAQ systems, multiple IDTADC1212D080HN-C18 ICs scale to 8, 16, or 32 channels by clocking each pair of ADCs from a single low-jitter oscillator. The 64-VFQFPN 9x9 mm footprint supports dense channel-count board layouts, and the exposed thermal pad keeps junction temperatures within spec across the operating range. The CMOS digital output bus interfaces cleanly to Xilinx Spartan-6 or Lattice ECP5 FPGAs for programmable decimation and triggering.
おすすめ
Radar I/Q Demodulator
The matched dual channels of the IDTADC1212D080HN-C18 capture the in-phase and quadrature outputs of a radar IF demodulator in a single footprint, eliminating gain and timing skew between separate ADCs. At 80 MSPS per channel the converter handles 40 MHz IF bandwidth, suitable for short-range automotive and industrial radar front-ends operating in the 24 GHz or 77 GHz mmWave bands. Low aperture-delay jitter preserves the phase accuracy needed for accurate target ranging.
おすすめ
Communications Test & Measurement
Vector signal analyzers and arbitrary-waveform-generator capture paths benefit from the IDTADC1212D080HN-C18 dual-channel simultaneous sampling when measuring the in-phase and quadrature components of modulated test signals. The matched channels keep I/Q gain and phase errors within calibration limits, and the 64-VFQFPN package simplifies thermal management inside instrument-grade enclosures. CMOS outputs feed an Altera or Xilinx FPGA implementing the FFT and demodulation chain.
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: IDTADC1212D080HN-C18 — 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 | IDTADC1213S080HN-C18 | IDTADC1213D080HN/C1:5 | IDTADC1212D080HN/C1:5 | IDTADC1213D080HN-C1 | ADC1012D080HN/C1:5 |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics (formerly IDT) | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 64-VFQFPN (9x9 mm) with exposed pad | 64-VFQFPN (9x9 mm) - same | 64-VFQFPN (9x9 mm) - same | 64-VFQFPN (9x9 mm) - same | 64-VFQFPN (9x9 mm) - same | 64-VFQFPN (9x9 mm) - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 10 bit |
| Number of Channels | 2 (Dual simultaneous) | 2 (Dual) | 2 (Dual) | 2 (Dual) | 2 (Dual) | 2 (Dual) |
| Sampling Rate | 80 MSPS per channel | 80 MSPS | 80 MSPS | 80 MSPS | 80 MSPS | 80 MSPS |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
| Operating Temperature Range | -40C to +85C (industrial -C18) | -40C to +85C | 0C to +70C (commercial /C1) | 0C to +70C (commercial /C1) | 0C to +70C (commercial -C1) | 0C to +70C (commercial /C1) |
| Data Interface | CMOS / LVDS (variant-dependent) | CMOS / LVDS | CMOS / LVDS | CMOS / LVDS | CMOS / LVDS | CMOS / LVDS |
| Qty-1 Unit Price (USD, as of 2026-10-13) | 21.40 | 21.40 (estimate - same family) | 18.90 (commercial grade, lower) | 18.90 (commercial grade, lower) | 18.90 (commercial grade, lower) | 14.20 (10-bit, lower res) |
主な差別化要因
- Higher sample rate per channel than ADC1012D ancestor （vs ADC1012D080HN/C1:5)
- True simultaneous-sampling dual-channel architecture （vs IDTADC1213S080HN-C18)
- Industrial operating temperature range (-C18 suffix) （vs IDTADC1212D080HN/C1:5)
- Matched I/Q channel performance for demodulator chains （vs Single-channel ADC1210S065HN-C18)
設計ノート
Estimated: Place analog input traces as 50 ohm controlled-impedance differential pairs from the ADC driver op-amp (e.g. THS4631) to the INA+/INA- and INB+/INB- pins of the IDTADC1212D080HN-C18. Keep trace length matching within 100 mils to preserve channel-to-channel timing symmetry; the exposed pad must be soldered to a continuous PCB ground pour (at least 8 thermal vias on a 1.2 mm pitch grid recommended) to keep junction temperature within the -40C to +85C industrial specification.
Estimated: At 80 MSPS per channel simultaneous sampling the IDTADC1212D080HN-C18 typically draws 250-400 mW per channel from the 3.3 V analog supply (AVDD) plus additional current from DRVDD for the digital output drivers. Use separate ferrite-bead-isolated AVDD and DRVDD rails with their own 10 uF bulk + 0.1 uF high-frequency bypass capacitor pair; this isolates the noisy digital output switching from the sensitive analog input samplers and prevents 80 MSPS clock-rate spurs from coupling into the analog input.
Estimated: Drive the CLK+/CLK- clock inputs with a low-jitter LVDS or LVPECL source (jitter under 1 ps RMS) because aperture-jitter variance directly degrades SNR at high input frequencies; the formula SNR dB = 6.02 x N + 1.76 + 20 log10(1 / (2 pi x Fin x tjitter)) sets a 70 MHz Fin x 1 ps tjitter budget at 12-bit. Keep the clock trace length matched with the analog input traces using length-tuning meanders so that clock-to-data timing skew stays within the FPGA capture window.
Do not omit the common-mode voltage bypass on the analog inputs; many engineers leave INA+ or INB+ floating and observe severe gain-mismatch between channels. Also avoid routing digital output buses through the same layer as the analog input traces - the 12-bit CMOS outputs at 80 MSPS inject 240 MHz of edge energy that easily couples through 4-mil separation and degrades ENOB by 2-3 bits. Always include a 4-layer PCB with continuous ground plane for any 80 MSPS ADC design, and verify the input common-mode voltage (typically 0.9 V to 1.1 V) using the datasheet reference before connecting the driver op-amp.
Estimated: With the 9x9 mm exposed-pad VFQFPN, typical thermal resistance is on the order of 25-30 C/W theta-JA on a 4-layer JEDEC-standard test board. At 500 mW total dissipation from both channels, junction temperature rise over ambient is approximately 12.5-15 C, keeping the part safely within its 125 C junction limit in industrial 85 C environments.
コンプライアンス情報
RoHS compliant per Renesas product page; not AEC-Q100 qualified (industrial grade only, not automotive); lead-free / Pb-free confirmed. Halogen-free status not explicitly listed in source data.
