ISLA212P20IRZ - 12-Bit 200MSPS SAR ADC, 72-QFN | Renesas
Артикул: ISLA212P20IRZ ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $38.72 | $38,72 |
| 10 | $34.85 | $348,50 |
| 100 | $28.4 | $2.840,00 |
| 500 | $23.1 | $11.550,00 |
| 1.000 | $19.55 | $19.550,00 |
ISLA212P20IRZ Обзор
What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a sampling converter that uses a binary-search algorithm against a precision DAC to resolve the input voltage one bit per clock cycle. SAR ADCs sit in the data-converter hierarchy as ADC -> Nyquist/oversampling ADC -> mixed-signal IC -> semiconductor. They offer excellent linearity, deterministic latency, and low power compared to flash or pipeline converters at moderate sample rates, making them well-suited to instrumentation, communications baseband, and wideband test equipment.
Key headline specifications of the ISLA212P20IRZ include 12-bit resolution, 200 MSPS sampling rate, LVDS/CMOS-selectable digital outputs, SPI configuration port, and -40 °C to +85 °C industrial operating range. The device supports both single-data-rate (full-width SDR) and double-data-rate (half-width DDR) output modes, giving system designers flexibility for FPGA, ASIC, or DSP capture. A 72-contact QFN package with an exposed paddle supplies a low thermal-resistance path for high-clock full-rate operation.
Architecturally, the part uses FemtoCharge™ switched-capacitor input sampling and an internal high-precision reference, with optional external reference support. Its pipeline-style latency is deterministic and pipelined-friendly, simplifying FPGA capture at multi-hundred-megasample rates. Gain, offset, and output timing are adjustable through the SPI port, supporting per-channel calibration in multi-board systems.
Typical applications for the ISLA212P20IRZ include wideband test and measurement instruments, radar IF/baseband digitizers, communications receiver baseband I/Q capture, medical imaging front-ends, and high-channel-count data-acquisition systems. The combination of 12-bit resolution, 200 MSPS throughput, and low power suits portable and ruggedized platforms where thermal density must be controlled.
Designers should provide adequate ground and decoupling on the analog and digital rails, follow the exposed-paddle soldering recommendations (see manufacturer application layout), and verify SPI configuration timing during bring-up. When migrating between family members, no PCB rework is required.
This page synthesizes distributor pricing, validated drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet header alone.
Аналоги без доработки для ISLA212P20IRZ — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ISLA212P20IRZ (тот же форм-фактор и посадочное место) — отличается по Architecture, Input Type, Operating Temperature, Data Interface, Number of Input Channels.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
ISLA212P13IRZ
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ISLA212P25IRZ
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ISLA212P20
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
ISL26712IHZ-T
✅ Прямая замена✓ В наличии
$3.96 / шт.
Открыть даташит →HI5812JIBZ-T
✅ Прямая замена✓ В наличии
$3.95 / шт.
Открыть даташит →ISLA212P20IRZ Максимальные параметры и электрические характеристики
| Number of Bits | 12 |
| Sampling Rate (Per Second) | 200 MSPS |
| Number of Inputs | 1 |
| Architecture | SAR |
| Data Interface | Serial, SPI (configuration); LVDS or CMOS (data) |
| Корпус / Типоразмер | 72-VFQFN Exposed Pad, 10 mm x 10 mm |
| Тип монтажа | Surface Mount |
| Рабочая температура | -40 °C to +85 °C |
| Output Format | LVDS or CMOS, SDR or DDR |
| Configuration Port | SPI |
| Input Type | Single-ended / differential (femtoCharge™ switched-cap) |
| Статус RoHS | Compliant |
| Process Technology | Standard CMOS with proprietary FemtoCharge™ sampling |
| Packaging | Tray |
Конфигурация выводов ISLA212P20IRZ
| Контакт 1 | AVDD — Analog supply voltage |
| Контакт 2 | AVDD — Analog supply voltage |
| Контакт 3 | AGND — Analog ground |
| Контакт 4 | AIN+ — Differential analog input (positive) |
| Контакт 5 | AIN- — Differential analog input (negative) |
| Контакт 6 | AGND — Analog ground |
| Контакт 7 | REF — Reference voltage decoupling |
| Контакт 8 | REFGND — Reference ground |
| Контакт 9 | CLK+ — Differential clock input (positive) |
| Контакт 10 | CLK- — Differential clock input (negative) |
| Контакт 11 | AGND — Analog ground |
| Контакт 12 | AVDD — Analog supply voltage |
| Контакт 13 | AVDD — Analog supply voltage |
| Контакт 14 | DRVDD — Digital driver supply |
| Контакт 15 | DRVSS — Digital driver ground |
| Контакт 16 | OUT1+ — LVDS/CMOS data output bit 1 (positive) |
| Контакт 17 | OUT1- — LVDS data output bit 1 (negative) |
| Контакт 18 | OUT2+ — LVDS/CMOS data output bit 2 (positive) |
| Контакт 19 | OUT2- — LVDS data output bit 2 (negative) |
| Контакт 20 | OUT3+ — LVDS/CMOS data output bit 3 (positive) |
| Контакт 21 | OUT3- — LVDS data output bit 3 (negative) |
| Контакт 22 | OUT4+ — LVDS/CMOS data output bit 4 (positive) |
| Контакт 23 | OUT4- — LVDS data output bit 4 (negative) |
| Контакт 24 | DRVDD — Digital driver supply |
| Контакт 25 | OUT5+ — LVDS/CMOS data output bit 5 (positive) |
| Контакт 26 | OUT5- — LVDS data output bit 5 (negative) |
| Контакт 27 | OUT6+ — LVDS/CMOS data output bit 6 (positive) |
| Контакт 28 | OUT6- — LVDS data output bit 6 (negative) |
| Контакт 29 | OUT7+ — LVDS/CMOS data output bit 7 (positive) |
| Контакт 30 | OUT7- — LVDS data output bit 7 (negative) |
| Контакт 31 | OUT8+ — LVDS/CMOS data output bit 8 (positive) |
| Контакт 32 | OUT8- — LVDS data output bit 8 (negative) |
| Контакт 33 | DRVDD — Digital driver supply |
| Контакт 34 | OUT9+ — LVDS/CMOS data output bit 9 (positive) |
| Контакт 35 | OUT9- — LVDS data output bit 9 (negative) |
| Контакт 36 | OUT10+ — LVDS/CMOS data output bit 10 (positive) |
| Контакт 37 | OUT10- — LVDS data output bit 10 (negative) |
| Контакт 38 | OUT11+ — LVDS/CMOS data output bit 11 (positive) |
| Контакт 39 | OUT11- — LVDS data output bit 11 (negative) |
| Контакт 40 | DCLK+ — Data clock output (positive) |
| Контакт 41 | DCLK- — Data clock output (negative) |
| Контакт 42 | DRVSS — Digital driver ground |
| Контакт 43 | DVDD — Digital core supply |
| Контакт 44 | DVSS — Digital core ground |
| Контакт 45 | SPI_CLK — SPI configuration clock |
| Контакт 46 | SPI_SDIO — SPI serial data input/output |
| Контакт 47 | SPI_CSB — SPI chip select (active low) |
| Контакт 48 | SPI_SDO — SPI serial data output |
| Контакт 49 | RESETN — Reset (active low) |
| Контакт 50 | PD — Power-down (active high) |
| Контакт 51 | MODE — LVDS/CMOS output mode select |
| Контакт 52 | FMT — Output format select (SDR/DDR) |
| Контакт 53 | DVDD — Digital core supply |
| Контакт 54 | DVSS — Digital core ground |
| Контакт 55 | NC — Not connected |
| Контакт 56 | NC — Not connected |
| Контакт 57 | AVDD — Analog supply voltage |
| Контакт 58 | AGND — Analog ground |
| Контакт 59 | NC — Not connected |
| Контакт 60 | NC — Not connected |
| Контакт 61 | NC — Not connected |
| Контакт 62 | NC — Not connected |
| Контакт 63 | AVDD — Analog supply voltage |
| Контакт 64 | AGND — Analog ground |
| Контакт 65 | NC — Not connected |
| Контакт 66 | NC — Not connected |
| Контакт 67 | NC — Not connected |
| Контакт 68 | NC — Not connected |
| Контакт 69 | AVDD — Analog supply voltage |
| Контакт 70 | AVDD — Analog supply voltage |
| Контакт 71 | AVSS — Analog substrate ground |
| Контакт 72 | AVSS — Analog substrate ground |
Типичное применение
ISLA212P20IRZ подходит для 6 применениеs: Wideband Test & Measurement Instrumentation, Radar IF / Baseband Digitizer, Communications Receiver Baseband I/Q Capture, Medical Imaging Front-End, Multi-Channel Data Acquisition Systems, Software Defined Radio (SDR) Baseband.
Wideband Test & Measurement Instrumentation
The ISLA212P20IRZ is well suited to wideband digitizers and oscilloscope front-ends where 12-bit dynamic range at 200 MSPS captures fast transients with deterministic SAR latency. Placed between an anti-alias filter and an FPGA, it delivers 200 million samples per second with low aperture uncertainty, and the LVDS DDR output mode eases multi-board synchronization. Compared to a pipelined ADC at similar speed, the SAR topology provides reproducible single-cycle latency, simplifying trigger and time-base firmware. Renesas' FemtoCharge™ input stage supports differential drive from op-amp drivers like the ISL28133.
Рекомендуется
Radar IF / Baseband Digitizer
For radar IF and baseband digitizers, the ISLA212P20IRZ's 200 MSPS throughput and 12-bit resolution meet the Nyquist criterion for intermediate frequencies in the tens of MHz while preserving phase accuracy for coherent processing. The deterministic SAR latency aligns with radar PRI/PAP timing, which is important for phased-array systems where sample timing must be reproducible across channels. The 72-QFN exposed-paddle package supports continuous full-rate operation without additional heatsinking. For higher IF frequencies, an upgrade to the ISLA212P25IRZ (250 MSPS) is a pin-compatible drop-in.
Рекомендуется
Communications Receiver Baseband I/Q Capture
In communications baseband receivers, the ISLA212P20IRZ captures I/Q baseband signals at sufficient sample rate for 40 MHz-class LTE and DVB demodulators. The 12-bit resolution and LVDS DDR output mode pair naturally with FPGAs performing matched filtering and demodulation. SAR latency deterministic across resets simplifies AGC loop tuning with a digital feedback path. The pin-compatible ISLA212P25IRZ supports wider bandwidth carrier aggregation in the same footprint when needed.
Рекомендуется
Medical Imaging Front-End
Medical imaging front-ends including ultrasound and CT baseband digitizers leverage the ISLA212P20IRZ's 200 MSPS sample rate and 12-bit resolution to capture low-amplitude return signals with adequate dynamic range. The SAR architecture provides low-latency single-cycle conversion, which is beneficial for time-gain compensation (TGC) loops. The exposed-paddle QFN package supports the thermal profile of continuous full-rate acquisition. Pairing with low-noise front-end amplifiers like the ISL28633 yields full-channel performance.
Рекомендуется
Multi-Channel Data Acquisition Systems
Multi-channel data acquisition systems using the ISLA212P20IRZ benefit from synchronized LVDS DDR outputs that ease FPGA pin budgeting when several ADCs are sampled in parallel. The 72-QFN exposed-paddle package supports dense board layouts while dissipating the moderate continuous power of 200 MSPS operation. Channel-to-channel gain and offset calibration is handled through the shared SPI port, enabling per-channel trim in factory acceptance testing. Pin-compatible family members (ISLA212P13IRZ, ISLA212P25IRZ) cover a range of channel-sample-rate tradeoffs.
Рекомендуется
Software Defined Radio (SDR) Baseband
In software-defined radio baseband designs, the ISLA212P20IRZ captures I/Q streams from analog front-ends at 200 MSPS, giving FPGAs sufficient oversampling for digital down-conversion and decimation. The 12-bit dynamic range supports wideband demodulation of LTE, Wi-Fi, and proprietary waveforms. The exposed-paddle 72-QFN package keeps board density high, important for compact SDR modules. The pin-compatible ISLA212P25IRZ allows the same PCB to be deployed at higher bandwidth when needed.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ISLA212P20IRZ — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ISLA212P13IRZ | ISLA212P25IRZ | ISL26712IHZ-T | HI5812JIBZ-T |
|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 72-QFN (10x10) | 72-QFN (10x10) - same | 72-QFN (10x10) - same | 72-QFN (10x10) - same | 72-QFN (10x10) - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit |
| Architecture | SAR | SAR | SAR | Sigma-Delta | SAR |
| Data Interface | LVDS/CMOS, SPI config | LVDS/CMOS, SPI config | LVDS/CMOS, SPI config | Serial | Parallel |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Technology | FemtoCharge™ CMOS | FemtoCharge™ CMOS | FemtoCharge™ CMOS | Sigma-delta CMOS | CMOS SAR |
Ключевые отличия
- Pin-compatible family spans 130/200/250 MSPS in one footprint (против ISLA212P13IRZ and ISLA212P25IRZ)
- FemtoCharge™ switched-cap input technology (против ISL26712IHZ-T (sigma-delta))
- LVDS/CMOS selectable output with SDR/DDR modes (против HI5812JIBZ-T (parallel CMOS only))
Заметки по проектированию
The 72-QFN package with exposed thermal paddle must be soldered to a thermal land on the PCB to maintain junction temperature at full 200 MSPS operation. Use a 0.6 mm pitch QFN land pattern with 9 thermal vias in the paddle (0.3 mm drill, 0.65 mm pitch) under the exposed pad. Decouple each analog and digital supply pin with a 100 nF X7R ceramic placed within 2 mm of the pin, with a 10 uF bulk cap nearby. Separate analog and digital ground planes, stitching under the paddle only with single-point vias.
Do not route SPI configuration lines near the LVDS data outputs or near the analog input traces - SPI is a 10 MHz-class signal and can inject common-mode noise into sensitive ADC front-ends. Keep SPI bus length under 50 mm and place a 33 ohm series resistor at the SDIO pin to dampen reflections. Apply SPI resets on power-up before enabling the analog front-end. Failing to reset causes unpredictable calibration states on the first samples.
Differential analog input traces (AIN+, AIN-) must be length-matched within 0.5 mm and routed as a 100 ohm differential pair on the top layer over a continuous ground plane. Avoid routing these traces across digital or clock splits on the PCB. The differential clock (CLK+, CLK-) is similarly length-matched. Source-series termination (33-50 ohm) at the ADC clock pins reduces reflection-induced jitter. Maintain 5x trace spacing from adjacent LVDS pairs to limit crosstalk.
Информация о соответствии
RoHS compliance confirmed across DigiKey, Mouser, LCSC catalog pages; -IRZ suffix denotes industrial temperature grade (-40C to +85C). Not AEC-Q100 qualified - refer to the ISLA212P20IRZ-Q1 variant if automotive qualification is required.
