ISLA216S25IR1Z - 16-Bit 250MSPS JESD204B ADC | Renesas
MPN: ISLA216S25IR1Z ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $73.5 | $73.50 |
| 10 | $67.2 | $672.00 |
| 100 | $58.4 | $5,840.00 |
| 500 | $49.1 | $24,550.00 |
| 1,000 | $41.8 | $41,800.00 |
ISLA216S25IR1Z Overview
What is a high-speed JESD204B ADC? A high-speed analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples a continuous-time analog signal at high rates (tens to hundreds of MSPS) and outputs a discrete digital word for downstream processing. When the data interface uses the JESD204B standard (JEDEC standard for serial data conversion interfaces), the converter streams its digital output over a small number of high-speed serial lanes, eliminating parallel LVDS routing and reducing PCB complexity. The ISLA216S25 family belongs to the broader category of pipeline ADCs (successive pipeline architecture) within the data-converter market segment.
Key headline specifications include 16-bit resolution, 250 MSPS maximum sample rate, JESD204B serial interface, low-latency digital processing, integrated input buffer / output drive, and configurable lane counts. The FemtoCharge™ architecture minimises aperture uncertainty and provides clean spurious-free dynamic range (SFDR) when driven by demanding wideband IFs.
Typical applications for this ADC family include digital oscilloscopes, wideband communication test equipment, software-defined radio (SDR) platforms, radar and lidar receivers, medical imaging front-ends (ultrasound beamforming), and spectrum analysers. The serial JESD204B interface makes it well-suited to FPGA-based processing pipelines such as those built on Xilinx Kintex/Vertex and Intel/Altera Stratix families.
A critical design consideration when using this part is matched impedance routing of the JESD204B serial lanes; reference clock jitter at sub-picosecond levels is required to realise 16-bit noise floor performance. The internal input bandgap and reference structure are calibrated at the factory, so designers only need to provide clean low-noise analog and clock supplies.
Drop-in alternatives for ISLA216S25IR1Z — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ISLA216S25IR1Z (same form factor and footprint) — differing in Architecture, Package, Resolution, Input Type, Number of Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ISLA216S25IRZ
✅ Drop-In📋 Reference alternative (not in catalog)
ISLA216S20IR1Z
✅ Drop-In📋 Reference alternative (not in catalog)
ISLA216S13IR1Z
✅ Drop-In✓ In Stock
$64.8 / Unit
View Datasheet →ISLA214P25IRZ
✅ Drop-In✓ In Stock
$24.9 / Unit
View Datasheet →HMCAD1050-80
✅ Drop-In✓ In Stock
$14.95 / Unit
View Datasheet →ISLA216S25IR1Z Maximum Ratings & Electrical Characteristics
| Resolution | 16 bit |
| Sample Rate (max) | 250 MSPS |
| Number of Channels | 1 |
| Architecture | Pipeline (FemtoCharge™) |
| Digital Interface | JESD204B (high-speed serial) |
| Analog Input Type | Differential |
| Operating Temperature Range | -40 °C to +85 °C (industrial) |
| Package | 48-pin LQFN (Hawk) |
| Mounting Type | Surface Mount |
| Process Technology | Standard CMOS (FemtoCharge™) |
| RoHS Status | Compliant |
ISLA216S25IR1Z 48-pin lqfn (hawk) Pin Configuration Guide
Pin configuration for ISLA216S25IR1Z (48-pin lqfn (hawk) package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for ISLA216S25IR1Z.
Refer to the datasheet for full pin configuration.
Typical Applications
ISLA216S25IR1Z is suitable for 7 applications: Digital Oscilloscope Front-End, Software-Defined Radio (SDR) Receiver, Medical Ultrasound Beamformer, Radar and Lidar Receiver, Automated Test Equipment (ATE), Spectrum Analyser and Signal Intelligence, Communications Test Set.
Digital Oscilloscope Front-End
The ISLA216S25IR1Z's 250 MSPS sample rate and 16-bit resolution position it as a direct-IF or baseband digitiser for high-end digital oscilloscopes and wideband digitizers. Compared to traditional oscilloscope 8-bit front ends, the 16-bit depth enables 256× wider dynamic range, allowing engineers to view a small signal riding atop a large DC bias without changing range. Placed between a 50 Ω input attenuator/probe and the FPGA JESD204B PHY, the converter streams serialised sample data into a Kintex or Stratix FPGA where it is waveform-processed in real time. The part's sub-picosecond aperture jitter keeps the signal-to-noise ratio above the 75 dBFS needed for 16-bit signal fidelity at 100 MHz IF bandwidth.
Recommended
Software-Defined Radio (SDR) Receiver
The ISLA216S25IR1Z is widely adopted in software-defined radio platforms because its 250 MSPS throughput supports direct sampling of 100 MHz-class IF blocks without a second mixer stage. The 16-bit resolution across a 125 MHz Nyquist bandwidth provides enough dynamic range for sub-3G cellular and aeronautical communications. When paired with a low-jitter clock (sub-100 fs RMS jitter) and routed to an FPGA with JESD204B IP (e.g., Xilinx Kintex-7), the design supports up to 4 serial lanes at 5 Gbps, which is sufficient for 250 MSPS × 16-bit payloads. This makes the converter well-suited to multi-channel phase-coherent receivers used in direction-finding and phased-array systems.
Recommended
Medical Ultrasound Beamformer
In phased-array ultrasound systems, the ISLA216S25IR1Z's JESD204B serial interface reduces board space by replacing bulky parallel LVDS cables connecting transducer elements to the back-end FPGA. Each ADC channel digitises a single piezoelectric element, and deterministic SYSREF-based latency in JESD204B ensures element-to-element time alignment required for accurate beamforming. The 16-bit dynamic range plus 250 MSPS lets designers meet sub-mm spatial resolution requirements while keeping 100+ channel counts manageable. Typical front-end cards integrate 32-64 channels on a single PCB. The part's industrial (-40 to +85 °C) temperature grade is essential for diagnostic equipment reliability.
Recommended
Radar and Lidar Receiver
The ISLA216S25IR1Z is an excellent fit for radar and lidar receiver signal chains that demand wideband IF sampling in a compact footprint. For a frequency-modulated continuous-wave (FMCW) radar front-end, the 250 MSPS throughput can directly sample 80-100 MHz IFs after the LNA/mixer stage, enabling chirp signal capture in real time. The JESD204B serial output (configurable 1-4 lanes) cleanly bridges to a Kintex Ultrascale or Zynq Ultrascale+ FPGA performing FFT-based range/Doppler processing. Across many MIMO radar designs, multi-channel synchronization is critical, and the SYSREF support in JESD204B provides the deterministic latency that phase-coherent phased arrays require.
Recommended
Automated Test Equipment (ATE)
Semiconductor test and RF ATE platforms leverage the ISLA216S25IR1Z's 16-bit resolution at 250 MSPS for high-precision stimulus-response measurements. Sampling at 250 MSPS enables digital-IF testing of baseband and intermediate-frequency devices where 8 or 10-bit ADCs lack the dynamic range. The JESD204B output ports densely pack measurement data into a tester FPGA, allowing parallel sampling of multiple DUTs per pin. The industrial operating temperature and 48-pin LQFN (Hawk) footprint ease instrumentation-grade PCB layout, while the wide common-mode input range accommodates the ±5 V signal swings common in ATE fixtures.
Recommended
Spectrum Analyser and Signal Intelligence
Spectrum analysers and signal intelligence (SIGINT) platforms benefit from the ISLA216S25IR1Z's combination of 16-bit dynamic range and 250 MSPS throughput for real-time FFT capture. Captured 125 MHz Nyquist bandwidths can be processed for instantaneous spectral display, transient detection, and digital demodulation. The JESD204B serial interface (with up to 4 lanes) connects directly to an FPGA hosting FFT engines, making multi-antenna direction-finding and angle-of-arrival estimation feasible. Compared to 12-bit alternatives, the 16-bit depth adds 24 dB additional dynamic range, which is decisive when weak signals of interest must be separated from strong adjacent interferers.
Recommended
Communications Test Set
Cellular basestation testers and wireless manufacturing test sets use the ISLA216S25IR1Z as the production-line measurement ADC. The 250 MSPS sample rate supports 4G LTE, 5G NR, and Wi-Fi 6E EVM measurements with 16-bit precision when used with a clean reference clock. The JESD204B link to the host FPGA simplifies integration with vendor instrument IP and makes it possible to synchronise the ADC with the device-under-test's RF chain. Industrial temperature rating and RoHS compliance suit long-life production test stands, and the 48-pin LQFN (Hawk) package simplifies rework on crowded test cards.
Recommended
Recommended Products Summary
Engineering reference data for ISLA216S25IR1Z — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ISLA216S25IRZ | ISLA216S20IR1Z | ISLA216S13IR1Z | ISLA214P25IRZ | HMCAD1050-80 |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Analog Devices |
| Package | 48-pin LQFN (Hawk) | 48-pin LQFN (Hawk) - same | 48-pin LQFN (Hawk) - same | 48-pin LQFN (Hawk) - same | 48-pin LQFN (Hawk) - same | 48-pin LQFN (Hawk) - same |
| Resolution | 16 bit | 16 bit | 16 bit | 16 bit | 14 bit | 12 bit |
| Sample Rate (max) | 250 MSPS | 250 MSPS | 200 MSPS | 130 MSPS | 250 MSPS | 1050/80 MSPS |
| Digital Interface | JESD204B | JESD204B | JESD204B | JESD204B | Parallel CMOS/LVDS | JESD204B |
| Architecture | Pipeline (FemtoCharge™) | Pipeline (FemtoCharge™) | Pipeline (FemtoCharge™) | Pipeline (FemtoCharge™) | Pipeline (FemtoCharge™) | Pipeline |
| Channels | 1 | 1 | 1 | 1 | 1 | 1 |
| Process Technology | Standard CMOS (FemtoCharge™) | Standard CMOS (FemtoCharge™) | Standard CMOS (FemtoCharge™) | Standard CMOS (FemtoCharge™) | Standard CMOS (FemtoCharge™) | SiGe BiCMOS |
Key Differentiators
- Pin-compatible multi-speed 16-bit family with JESD204B (vs ISLA216S20IR1Z / ISLA216S13IR1Z)
- FemtoCharge™ CMOS process enables lower power than bipolar alternatives (vs HMCAD1050-80)
- Industrial temperature grade (-40 to +85 °C) in standard CMOS (vs HMCAD1050-80)
Design Notes
Route the JESD204B serial lanes (DOUT+/DOUT-) as 100 Ω differential microstrip or stripline, keeping intra-pair skew below 5 ps per lane. The 48-pin LQFN (Hawk) package has an exposed die-paddle ground that must be soldered to a copper ground island with 9 thermal vias for lowest ground impedance and reliable thermal performance. Match the analog input trace length to keep aperture delay balanced across channels when using multiple ADCs in phase-coherent arrays.
Decouple each AVDD and DVDD pin with a 0.1 µF ceramic capacitor directly at the LQFN pin plus a 4.7 µF bypass capacitor within 5 mm. Per Renesas reference designs, switching AVDD from a linear LDO (not a switching regulator) yields best phase-noise performance; tools like Renesas ISL8010 LDO or equivalent ultra-low-noise regulators achieve >75 dB SFDR. Keep digital return currents isolated from analog ground by a cut and stitched together near the converter's exposed paddle.
Do not omit the external clock jitter estimate when validating bandwidth. A 250 MSPS, 16-bit ADC with analog input at 100 MHz IF requires total jitter (clock + aperture) below 80 fs RMS to keep SNR degradation under 1 dB. Also note that the ISLA216S25IR1Z (the 'S25' variant) is NOT a drop-in replacement for the ISLA216P25IRZ (parallel output) - the output pin map and digital interface differ even though the analog pins look similar. Always confirm SYSREF connection when using multiple converters for synchronisation.
Compliance Information
RoHS/REACH compliant per Renesas product page (2026-10-13). 'Z' suffix in part number denotes lead-free / RoHS assembly. Not AEC-Q100 qualified - this part is not designated for automotive use.
