ISLA212P20IRZ - 12-Bit 200MSPS SAR ADC, 72-QFN | Renesas
MPN: ISLA212P20IRZ ✓ AktifISLA212P20IRZ Ringkasan
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.
Alternatif penggantian untuk ISLA212P20IRZ — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian ISLA212P20IRZ (sama faktor bentuk dan footprint) — berbeda di dalam Architecture, Input Type, Operating Temperature, Data Interface, Number of Input Channels.
ISLA212P13IRZ
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
ISLA212P25IRZ
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
ISLA212P20
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
ISL26712IHZ-T
✅ Drop-InKontak untuk harga
Lihat Datasheet →HI5812JIBZ-T
✅ Drop-InKontak untuk harga
Lihat Datasheet →ISLA212P20IRZ Rating Maksimal & Karakteristik Listrik
| 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) |
| Paket / Case | 72-VFQFN Exposed Pad, 10 mm x 10 mm |
| Tipe Mounting | Surface Mount |
| Suhu Kerja | -40 °C to +85 °C |
| Output Format | LVDS or CMOS, SDR or DDR |
| Configuration Port | SPI |
| Input Type | Single-ended / differential (femtoCharge™ switched-cap) |
| Status RoHS | Compliant |
| Process Technology | Standard CMOS with proprietary FemtoCharge™ sampling |
| Packaging | Tray |
Konfigurasi Pin ISLA212P20IRZ
| Pin produk 1 | AVDD — Analog supply voltage |
| Pin produk 2 | AVDD — Analog supply voltage |
| Pin produk 3 | AGND — Analog ground |
| Pin produk 4 | AIN+ — Differential analog input (positive) |
| Pin produk 5 | AIN- — Differential analog input (negative) |
| Pin produk 6 | AGND — Analog ground |
| Pin produk 7 | REF — Reference voltage decoupling |
| Pin produk 8 | REFGND — Reference ground |
| Pin produk 9 | CLK+ — Differential clock input (positive) |
| Pin produk 10 | CLK- — Differential clock input (negative) |
| Pin produk 11 | AGND — Analog ground |
| Pin produk 12 | AVDD — Analog supply voltage |
| Pin produk 13 | AVDD — Analog supply voltage |
| Pin produk 14 | DRVDD — Digital driver supply |
| Pin produk 15 | DRVSS — Digital driver ground |
| Pin produk 16 | OUT1+ — LVDS/CMOS data output bit 1 (positive) |
| Pin produk 17 | OUT1- — LVDS data output bit 1 (negative) |
| Pin produk 18 | OUT2+ — LVDS/CMOS data output bit 2 (positive) |
| Pin produk 19 | OUT2- — LVDS data output bit 2 (negative) |
| Pin produk 20 | OUT3+ — LVDS/CMOS data output bit 3 (positive) |
| Pin produk 21 | OUT3- — LVDS data output bit 3 (negative) |
| Pin produk 22 | OUT4+ — LVDS/CMOS data output bit 4 (positive) |
| Pin produk 23 | OUT4- — LVDS data output bit 4 (negative) |
| Pin produk 24 | DRVDD — Digital driver supply |
| Pin produk 25 | OUT5+ — LVDS/CMOS data output bit 5 (positive) |
| Pin produk 26 | OUT5- — LVDS data output bit 5 (negative) |
| Pin produk 27 | OUT6+ — LVDS/CMOS data output bit 6 (positive) |
| Pin produk 28 | OUT6- — LVDS data output bit 6 (negative) |
| Pin produk 29 | OUT7+ — LVDS/CMOS data output bit 7 (positive) |
| Pin produk 30 | OUT7- — LVDS data output bit 7 (negative) |
| Pin produk 31 | OUT8+ — LVDS/CMOS data output bit 8 (positive) |
| Pin produk 32 | OUT8- — LVDS data output bit 8 (negative) |
| Pin produk 33 | DRVDD — Digital driver supply |
| Pin produk 34 | OUT9+ — LVDS/CMOS data output bit 9 (positive) |
| Pin produk 35 | OUT9- — LVDS data output bit 9 (negative) |
| Pin produk 36 | OUT10+ — LVDS/CMOS data output bit 10 (positive) |
| Pin produk 37 | OUT10- — LVDS data output bit 10 (negative) |
| Pin produk 38 | OUT11+ — LVDS/CMOS data output bit 11 (positive) |
| Pin produk 39 | OUT11- — LVDS data output bit 11 (negative) |
| Pin produk 40 | DCLK+ — Data clock output (positive) |
| Pin produk 41 | DCLK- — Data clock output (negative) |
| Pin produk 42 | DRVSS — Digital driver ground |
| Pin produk 43 | DVDD — Digital core supply |
| Pin produk 44 | DVSS — Digital core ground |
| Pin produk 45 | SPI_CLK — SPI configuration clock |
| Pin produk 46 | SPI_SDIO — SPI serial data input/output |
| Pin produk 47 | SPI_CSB — SPI chip select (active low) |
| Pin produk 48 | SPI_SDO — SPI serial data output |
| Pin produk 49 | RESETN — Reset (active low) |
| Pin produk 50 | PD — Power-down (active high) |
| Pin produk 51 | MODE — LVDS/CMOS output mode select |
| Pin produk 52 | FMT — Output format select (SDR/DDR) |
| Pin produk 53 | DVDD — Digital core supply |
| Pin produk 54 | DVSS — Digital core ground |
| Pin produk 55 | NC — Not connected |
| Pin produk 56 | NC — Not connected |
| Pin produk 57 | AVDD — Analog supply voltage |
| Pin produk 58 | AGND — Analog ground |
| Pin produk 59 | NC — Not connected |
| Pin produk 60 | NC — Not connected |
| Pin produk 61 | NC — Not connected |
| Pin produk 62 | NC — Not connected |
| Pin produk 63 | AVDD — Analog supply voltage |
| Pin produk 64 | AGND — Analog ground |
| Pin produk 65 | NC — Not connected |
| Pin produk 66 | NC — Not connected |
| Pin produk 67 | NC — Not connected |
| Pin produk 68 | NC — Not connected |
| Pin produk 69 | AVDD — Analog supply voltage |
| Pin produk 70 | AVDD — Analog supply voltage |
| Pin produk 71 | AVSS — Analog substrate ground |
| Pin produk 72 | AVSS — Analog substrate ground |
Aplikasi Umum
ISLA212P20IRZ cocok untuk 6 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk ISLA212P20IRZ — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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 |
Diferensiator Kunci
- Pin-compatible family spans 130/200/250 MSPS in one footprint (vsISLA212P13IRZ and ISLA212P25IRZ)
- FemtoCharge™ switched-cap input technology (vsISL26712IHZ-T (sigma-delta))
- LVDS/CMOS selectable output with SDR/DDR modes (vsHI5812JIBZ-T (parallel CMOS only))
Catatan Desain
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.
Informasi Konformitas
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.
