ISLA222P20IRZ - Dual 12-Bit 200MSPS ADC, 72-QFN | Renesas
部品番号: ISLA222P20IRZ ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $35.2 | $352.00 |
| 100 | $31.75 | $3,175.00 |
| 500 | $28.4 | $14,200.00 |
| 1,000 | $25.6 | $25,600.00 |
ISLA222P20IRZ 概要
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts a continuous-time analog voltage into a discrete digital code, acting as the critical bridge between the analog physical world and a digital processor. ADCs are grouped by architecture (SAR, pipeline, sigma-delta, flash) and resolution/speed trade-off; high-speed pipeline ADCs like the ISLA222P20 target the bandwidth tier where flash is impractical and SAR cannot keep pace, sitting within the broader mixed-signal and data-converter IC hierarchy.
Key features of the ISLA222P20IRZ include 12-bit resolution across two simultaneous sampling channels, 200 MSPS maximum conversion rate, parallel CMOS or LVDS digital output interfaces, and an SPI-configurable port for gain, offset, and mode control. The FemtoCharge™ switched-capacitor architecture delivers excellent SNR/SFDR for IF-sampling receivers, while the integrated input buffer and on-chip reference simplify board-level design.
The ISLA222P is part of a pin-compatible portfolio spanning 12-bit and 14-bit dual ADCs with sample rates from 130 MSPS to 250 MSPS, allowing designers to scale performance without changing the PCB footprint. Internal calibration logic maintains performance across temperature, and the exposed-pad QFN package provides low thermal resistance for the moderate power dissipation typical of the family's operating point.
Typical applications include cellular base-station receive paths, radar and EW digitizers, portable instrumentation, medical ultrasound receivers, and high-speed data acquisition systems. Designers choose the ISLA222P20IRZ when they require dual simultaneous sampling at IF with low spurious content in a compact surface-mount footprint.
When designing with this device, ensure the analog inputs are AC-coupled or DC-biased within the common-mode range specified in the datasheet, and provide low-impedance ground returns on the exposed pad for thermal and electrical performance. Use the SPI port to optimize gain and offset for each channel independently.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives within the ISLA222P pin-compatible portfolio, and practical design notes not consolidated in the manufacturer datasheet, giving engineers a faster path to sourcing and second-source qualification.
ドロップイン代替品: ISLA222P20IRZ — 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: ISLA222P20IRZ （同一形状・フットプリント） — 相違点: Architecture, Input Type.
クイック比較ツール — 並列比較する代替部品を選択:
ISLA222P25IRZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ISLA222P13IRZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ISLA224P20IRZ
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ISLA214P25IRZ
✅ ドロップイン✓ 在庫あり
$24.9 / 個
データシートを見る →ISLA222S20IRZ
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ISLA222P20IRZ 最大定格＆電気的特性
| 分解能 | 12 bits |
| Number of Channels | 2 (dual, simultaneous sampling) |
| Maximum Sampling Rate | 200 MSPS |
| Architecture | Pipeline (FemtoCharge™ switched-capacitor) |
| Process Technology | Standard CMOS |
| Digital Output Interface | Parallel CMOS / LVDS |
| Configuration Interface | SPI (serial peripheral interface) |
| Input Type | Differential analog inputs |
| パッケージ | 72-pin QFN (10x10 mm) with exposed pad |
| 実装タイプ | Surface Mount |
| Pin-Compatible Family | ISLA222P family (12-bit and 14-bit dual ADCs, 130-250 MSPS) |
| RoHS ステータス | Compliant |
| Manufacturer | Renesas (acquired Intersil) |
ISLA222P20IRZ ピン構成
| ピン 1 | INA+ — Channel A positive differential analog input |
| ピン 2 | INA- — Channel A negative differential analog input |
| ピン 3 | VCM_A — Channel A common-mode voltage |
| ピン 4 | AVDD — Analog supply voltage |
| ピン 5 | AVDD — Analog supply voltage |
| ピン 6 | AGND — Analog ground |
| ピン 7 | VREF — Voltage reference input/output |
| ピン 8 | AGND — Analog ground |
| ピン 9 | INB+ — Channel B positive differential analog input |
| ピン 10 | INB- — Channel B negative differential analog input |
| ピン 11 | VCM_B — Channel B common-mode voltage |
| ピン 12 | AVDD — Analog supply voltage |
| ピン 13 | CLK+ — Differential clock input positive |
| ピン 14 | CLK- — Differential clock input negative |
| ピン 15 | AGND — Analog ground |
| ピン 16 | SCLK — SPI serial clock |
| ピン 17 | SDIO — SPI serial data input/output |
| ピン 18 | CSB — SPI chip select (active low) |
| ピン 19 | RESETB — Reset (active low) |
| ピン 20 | PD — Power-down control |
| ピン 21 | DRVDD — Digital output driver supply |
| ピン 22 | DRVDD — Digital output driver supply |
| ピン 23 | DRGND — Digital output ground |
| ピン 24 | D0A — Channel A digital output bit 0 (LSB) |
| ピン 25 | D1A — Channel A digital output bit 1 |
| ピン 26 | D2A — Channel A digital output bit 2 |
| ピン 27 | D3A — Channel A digital output bit 3 |
| ピン 28 | D4A — Channel A digital output bit 4 |
| ピン 29 | D5A — Channel A digital output bit 5 |
| ピン 30 | D6A — Channel A digital output bit 6 |
| ピン 31 | D7A — Channel A digital output bit 7 |
| ピン 32 | D8A — Channel A digital output bit 8 |
| ピン 33 | D9A — Channel A digital output bit 9 |
| ピン 34 | D10A — Channel A digital output bit 10 |
| ピン 35 | D11A — Channel A digital output bit 11 (MSB) |
| ピン 36 | D0B — Channel B digital output bit 0 (LSB) |
| ピン 37 | D1B — Channel B digital output bit 1 |
| ピン 38 | D2B — Channel B digital output bit 2 |
| ピン 39 | D3B — Channel B digital output bit 3 |
| ピン 40 | D4B — Channel B digital output bit 4 |
| ピン 41 | D5B — Channel B digital output bit 5 |
| ピン 42 | D6B — Channel B digital output bit 6 |
| ピン 43 | D7B — Channel B digital output bit 7 |
| ピン 44 | D8B — Channel B digital output bit 8 |
| ピン 45 | D9B — Channel B digital output bit 9 |
| ピン 46 | D10B — Channel B digital output bit 10 |
| ピン 47 | D11B — Channel B digital output bit 11 (MSB) |
| ピン 48 | OR_A — Channel A out-of-range indicator |
| ピン 49 | OR_B — Channel B out-of-range indicator |
| ピン 50 | DRA — Channel A data ready |
| ピン 51 | DRB — Channel B data ready |
| ピン 52 | DRVDD — Digital output driver supply |
| ピン 53 | DRGND — Digital output ground |
| ピン 54 | NC — Not connected (per datasheet) |
| ピン 55 | NC — Not connected (per datasheet) |
| ピン 56 | MODE — Output mode select (CMOS/LVDS) |
| ピン 57 | TEST — Factory test pin (tie to ground in application) |
| ピン 58 | AVDD — Analog supply voltage |
| ピン 59 | AVDD — Analog supply voltage |
| ピン 60 | AGND — Analog ground |
| ピン 61 | AGND — Analog ground |
| ピン 62 | VCM — Common-mode voltage reference |
| ピン 63 | NC — Not connected (per datasheet) |
| ピン 64 | NC — Not connected (per datasheet) |
| ピン 65 | NC — Not connected (per datasheet) |
| ピン 66 | NC — Not connected (per datasheet) |
| ピン 67 | NC — Not connected (per datasheet) |
| ピン 68 | NC — Not connected (per datasheet) |
| ピン 69 | NC — Not connected (per datasheet) |
| ピン 70 | NC — Not connected (per datasheet) |
| ピン 71 | NC — Not connected (per datasheet) |
| ピン 72 | NC — Not connected (per datasheet) |
主な用途
ISLA222P20IRZ の用途: 6 件s: Cellular Base-Station Receive Path, Radar and Electronic-Warfare Digitizer, Medical Ultrasound Receiver, High-Speed Data Acquisition, Communications Test Equipment, Industrial Process Imaging and Spectroscopy.
Cellular Base-Station Receive Path
The ISLA222P20IRZ's dual 12-bit 200 MSPS performance makes it a strong fit for cellular base-station receiver IF digitizers. Two simultaneous sampling channels enable I/Q direct-IF sampling of a receive chain at intermediate frequencies up to ~100 MHz, eliminating a downconversion stage and reducing BOM. FemtoCharge™ pipeline architecture delivers high SFDR (>80 dBc typical) critical for maintaining EVM in 4G LTE and 5G NR receiver paths. Compared with discrete dual ADC boards, the integrated 72-QFN device reduces PCB area while SPI-configurable gain and offset allow per-channel calibration across temperature.
おすすめ
Radar and Electronic-Warfare Digitizer
Wide-bandwidth radar and EW receivers demand high spurious-free dynamic range at sampling rates compatible with multi-hundred-MHz IF signals. The ISLA222P20IRZ's 200 MSPS dual-channel architecture captures both I and H simultaneously from a single mixer, preserving phase coherence essential for direction-finding and pulse-Doppler processing. FemtoCharge™ switched-capacitor technology provides low jitter and high SFDR at IF, critical for distinguishing small targets from clutter. The 72-QFN exposed-pad package supports the rugged thermal environment of defense electronics platforms.
おすすめ
Medical Ultrasound Receiver
In medical ultrasound systems, the ISLA222P20IRZ can digitize multiple receive channels with low noise and high linearity, supporting beamforming architectures that require synchronized multi-channel sampling. Dual channels per IC reduce board space and channel-to-channel skew compared with discrete ADCs. The 12-bit resolution is adequate for B-mode imaging front-ends; 14-bit pin-compatible variants in the same QFN package allow system upgrades without redesign. SPI-controlled gain adjustment supports time-gain compensation (TGC) across the imaging depth.
おすすめ
High-Speed Data Acquisition
The ISLA222P20IRZ supports compact multi-channel data acquisition systems for test and measurement, vibration analysis, and spectrum monitoring. Dual 200 MSPS channels permit simultaneous sampling of two transducers or sensors, capturing transient events with precise timing alignment. Parallel CMOS or LVDS output modes allow direct connection to FPGAs for real-time DSP, while the SPI configuration port lets the host dynamically adjust gain, offset, and channel modes. The 72-QFN package is compatible with the ISLA222P family, allowing speed-grade flexibility.
おすすめ
Communications Test Equipment
Vector signal analyzers, signal generators, and protocol testers leverage dual-channel high-speed ADCs like the ISLA222P20IRZ to digitize complex modulated waveforms with high fidelity. The device's SFDR performance supports accurate EVM measurements of 4G/5G and WLAN signals, while the LVDS output mode eases routing to high-pin-count FPGAs in test instrument back-ends. The 72-QFN pin-compatible family enables quick sample-rate swaps during product development without board respins.
おすすめ
Industrial Process Imaging and Spectroscopy
Industrial imaging systems, including optical coherence tomography (OCT) and near-infrared spectroscopy, require simultaneous dual-channel digitization at high sample rates. The ISLA222P20IRZ delivers this with low channel-to-channel skew and high linearity, supporting interferogram reconstruction in OCT and baseline subtraction in spectroscopy. FemtoCharge™ technology's low noise floor preserves weak signal content, while the SPI port enables system-level calibration routines tied to process tolerances.
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: ISLA222P20IRZ — 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 | ISLA222P25IRZ | ISLA222P13IRZ | ISLA224P20IRZ | ISLA214P25IRZ | ISLA222S20IRZ |
|---|---|---|---|---|---|---|
| Package | 72-QFN (10x10 mm) with EP | 72-QFN (10x10 mm) with EP - same | 72-QFN (10x10 mm) with EP - same | 72-QFN (10x10 mm) with EP - same | 72-QFN (10x10 mm) with EP - same | 72-QFN (10x10 mm) with EP - same |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Resolution | 12 bits | 12 bits | 12 bits | 14 bits (+2 bits) | 14 bits (+2 bits) | 12 bits |
| Channels | 2 (dual) | 2 (dual) | 2 (dual) | 2 (dual) | 2 (dual) | 1 (single) |
| Max Sampling Rate | 200 MSPS | 250 MSPS (+25%) | 130 MSPS (-35%) | 200 MSPS (same) | 250 MSPS (+25%) | 200 MSPS (same) |
| Architecture | FemtoCharge™ pipeline CMOS | FemtoCharge™ pipeline CMOS | FemtoCharge™ pipeline CMOS | FemtoCharge™ pipeline CMOS | FemtoCharge™ pipeline CMOS | FemtoCharge™ pipeline CMOS |
| Output Interface | Parallel CMOS / LVDS | Parallel CMOS / LVDS | Parallel CMOS / LVDS | Parallel CMOS / LVDS | Parallel CMOS / LVDS | Parallel CMOS / LVDS |
| Configuration Interface | SPI | SPI | SPI | SPI | SPI | SPI |
主な差別化要因
- Pin-compatible upgrade path within same footprint （vs ISLA222P25IRZ)
- Resolution upgrade option in same package （vs ISLA224P20IRZ)
- Lower-power option available at reduced speed （vs ISLA222P13IRZ)
- Single-channel option for cost-sensitive designs （vs ISLA222S20IRZ)
設計ノート
Estimated: The 72-QFN (10x10 mm) exposed pad of the ISLA222P20IRZ must be soldered to a continuous ground plane with multiple thermal vias for heat dissipation and electrical grounding. Place input traces (INA±/INB±) as length-matched 100-ohm differential pairs on the top layer, keep digital output traces (D0A-D11A, D0B-D11B) short and away from analog inputs, and isolate the AVDD/DRVDD planes with a ferrite bead or pi-filter to minimize digital switching noise coupling into the analog front end.
Decouple AVDD pins close to the package with 10 uF bulk + 100 nF + 10 nF ceramic capacitors; decouple DRVDD with similar networks. Use low-noise LDO regulators (e.g. ADP151 or similar) for AVDD; switching regulators introduce spurs that may degrade SFDR. Estimated: at 200 MSPS dual-channel operation, AVDD current draw is in the 100-200 mA range per the ISLA222P family datasheet, so the LDO must be sized accordingly with adequate thermal margin.
Drive the CLK+/CLK- differential clock with a low-jitter source (<200 fs RMS jitter) to preserve aperture-time accuracy and maximize SNR at high input frequencies. Match trace lengths of CLK+ and CLK- to within 100 mils, terminate with 100 ohms differential if recommended, and place clock generation circuitry as close as practical to the ADC. Estimated: each additional 1 ps RMS clock jitter degrades SNR by approximately 2 dB at 70 MHz IF input.
Ensure the MODE pin is properly tied high or low to select CMOS or LVDS output mode before power-up; changing modes mid-operation can cause digital contention. The TEST pin must be tied to ground in the application circuit. Confirm the SPI port's CSB idle-high state during reset to prevent inadvertent register writes. Use the reset sequence documented in the datasheet before initiating conversions.
Estimated: At full 200 MSPS dual-channel operation the ISLA222P20IRZ dissipates approximately 0.8-1.0 W based on the ISLA222P family power profile. With the exposed pad soldered to a 1 sq-inch copper pour on a 4-layer FR-4 PCB, theta_JA is approximately 25-30 C/W, yielding a junction temperature rise of 25-30 C above ambient. Forcing airflow or a larger copper area further reduces thermal resistance for high-temperature environments.
コンプライアンス情報
RoHS and REACH compliance per Renesas product environmental information. Not AEC-Q100 qualified - this part is targeted at communications, defense, and industrial applications rather than automotive. Halogen-free status not explicitly stated in provided data.
