ADC1415S125HN-C1 - 14-bit 125 MSPS ADC w/ Input Buffer | Renesas
MPN: ADC1415S125HN-C1 ✓ نشطADC1415S125HN-C1 نظرة عامة
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous analog voltages and quantizes them into discrete binary codes. Pipelined ADCs such as the ADC1415S125HN-C1 use a multi-stage architecture with per-stage residue gain and digital error correction; this allows high sampling rates while keeping power consumption and die area low compared to flash or SAR topologies at equivalent speeds. The ADC1415S125HN-C1 sits in the high-speed data-acquisition segment between precision SAR converters and wideband RF front-end ADCs.
Key features include a wide input common-mode range with on-chip input buffer, selectable CMOS or LVDS DDR digital outputs, and a serial SPI control interface for mode configuration. The integrated input buffer simplifies front-end design by isolating the switched-capacitor sampling network from the upstream driver, allowing the part to be driven directly from a wide variety of op-amps, transformers, or baluns. Selectable output format (CMOS single-data-rate or LVDS double-data-rate) gives the designer flexibility to optimize for either low-EMI board-level routing or low-power point-to-point links to an FPGA.
Architecturally, the converter is built on a low-power CMOS process with 14-bit resolution and proprietary calibration that corrects gain and offset errors in the background, removing the need for system-level calibration routines. The pipelined structure introduces a fixed number of clock cycles of pipeline latency, which is deterministic and well-suited for synchronous sampled systems where latency is acceptable. The LVDS DDR output mode transmits 7 bits per clock edge, halving the required output clock frequency compared with parallel CMOS and simplifying FPGA capture timing closure.
Typical applications include wireless base-station observation receivers, multi-carrier GSM/EDGE/LTE digitizers, portable instrumentation, ultrasound beam-formers, and any data-acquisition card that requires 14-bit dynamic range at sample rates between 65 and 125 MSPS. Designers frequently pair the ADC1415S125HN-C1 with a low-noise differential driver, a high-stability clock source, and an FPGA that absorbs the LVDS DDR data and performs downstream DSP.
A practical design consideration: the input buffer relaxes drive-impedance requirements but adds approximately 200 mW of quiescent power that does not scale with clock rate, so at lower sample rates (65 MSPS) the part remains the dominant power consumer; in such cases the lower-grade ADC1415S065 in the same family gives a more efficient solution.
This page synthesizes distributor pricing, drop-in same-brand family members, and practical design considerations not found in the manufacturer datasheet alone.
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الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ADC1415S125HN-C1 (نفس عامل الشكل والبصمة) — يختلف في Package, Configuration Interface, Input Type, Operating Temperature, Resolution.
ADC1415S105HN-C1
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADC1415S080HN-C1
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ADC1415S065HN-C1
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADC1413S125HN-C1
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADC1015S125HN/C1
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADC1415S125HN-C1 الحدود القصوى والخصائص الكهربائية
| الدقة | 14 bits |
| Number of Channels | 1 |
| Converter Type | Pipelined ADC |
| Maximum Sample Rate | 125 MSPS |
| Minimum Sample Rate (family) | 65 MSPS |
| Input Buffer | Integrated on-chip input buffer |
| Input Type | Single-ended / differential (analog front-end) |
| Digital Output Interface | CMOS or LVDS DDR (selectable) |
| Configuration Interface | Serial (SPI-compatible) |
| العلبة | 40-VFQFPN exposed pad, 6 mm x 6 mm |
| نوع التركيب | Surface Mount |
| نطاق درجة حرارة التشغيل | -40C to +85C |
| Screening Level (per DigiChip listing) | Industrial (commercial) |
| Compliance / RoHS | RoHS compliant (per Renesas product page) |
تكوين أطراف ADC1415S125HN-C1
| دبوس 1 | AINP — Differential analog input positive (or single-ended input) |
| دبوس 2 | AINN — Differential analog input negative (or common-mode reference) |
| دبوس 3 | VCM — Common-mode voltage output for external driver biasing |
| دبوس 4 | REFT — Internal reference top - decouple to ground |
| دبوس 5 | REFB — Internal reference bottom - decouple to ground |
| دبوس 6 | CLK+ — Differential clock input positive |
| دبوس 7 | CLK- — Differential clock input negative |
| دبوس 8 | CLKGND — Clock ground return |
| دبوس 9 | OE/RESET — Output enable / SPI reset |
| دبوس 10 | D0/D0P — Data output bit 0 (LVDS P) |
| دبوس 11 | D1/D0N — Data output bit 1 (LVDS N) |
| دبوس 12 | D2/D1P — Data output bit 2 (LVDS P) |
| دبوس 13 | D3/D1N — Data output bit 3 (LVDS N) |
| دبوس 14 | D4/D2P — Data output bit 4 (LVDS P) |
| دبوس 15 | D5/D2N — Data output bit 5 (LVDS N) |
| دبوس 16 | D6/D3P — Data output bit 6 (LVDS P) |
| دبوس 17 | D7/D3N — Data output bit 7 (LVDS N) |
| دبوس 18 | D8/D4P — Data output bit 8 (LVDS P) |
| دبوس 19 | D9/D4N — Data output bit 9 (LVDS N) |
| دبوس 20 | D10/D5P — Data output bit 10 (LVDS P) |
| دبوس 21 | D11/D5N — Data output bit 11 (LVDS N) |
| دبوس 22 | D12/D6P — Data output bit 12 (LVDS P) |
| دبوس 23 | D13/D6N — Data output bit 13 (LVDS N) |
| دبوس 24 | DOR — Data out-of-range indicator |
| دبوس 25 | FSR/PD — Full-scale range adjust / power-down (SPI-configurable) |
| دبوس 26 | SCLK — SPI serial clock |
| دبوس 27 | SDI — SPI serial data in |
| دبوس 28 | SDO — SPI serial data out |
| دبوس 29 | CSN — SPI chip select (active low) |
| دبوس 30 | OEN — LVDS/common-mode output enable |
| دبوس 31 | LVDSVDD — LVDS output driver supply |
| دبوس 32 | LVDSVSS — LVDS output driver ground |
| دبوس 33 | DRVDD — CMOS output driver supply |
| دبوس 34 | DRVSS — CMOS output driver ground |
| دبوس 35 | AVDD — Analog 3.0 V supply |
| دبوس 36 | AVSS — Analog ground |
| دبوس 37 | DVDD — Digital core supply |
| دبوس 38 | DVSS — Digital ground |
| دبوس 39 | NC — Not connected (per datasheet) |
| دبوس 40 | NC — Not connected (per datasheet) |
| دبوس 41 | EP — Exposed thermal pad - connect to analog ground |
التطبيقات النموذجية
ADC1415S125HN-C1 مناسب لـ 6 التطبيقs: Wireless Base-Station Observation Receiver, Medical Ultrasound Beam-Former, Portable Instrumentation and Data Acquisition, Industrial Multi-Carrier Power-Line Communication, Radar and Lidar Digitizer Front-End, Software-Defined Radio Wideband IF.
Wireless Base-Station Observation Receiver
The ADC1415S125HN-C1 is well matched to wideband observation receivers in multi-carrier GSM/EDGE/LTE base stations, where 14-bit resolution and 125 MSPS sampling allow digital capture of a 50-60 MHz IF segment with sufficient dynamic range for monitoring adjacent-channel leakage and spurious emissions. Its on-chip input buffer accepts the differential output of a standard IF balun, eliminating the need for an external ADC driver and reducing the BOM. The selectable LVDS DDR output mode halves output clock frequency versus CMOS, easing FPGA capture timing closure at 125 MSPS.
موصى به
Medical Ultrasound Beam-Former
In phased-array ultrasound systems, the ADC1415S125HN-C1's 14-bit resolution and 125 MSPS sampling support digitization of 40 MHz-bandwidth transducer channels with adequate headroom for harmonic imaging. The pipelined architecture has deterministic latency, which is critical because all channels must be sampled coherently before beam-forming summation in the FPGA. The integrated input buffer relaxes the front-end matching network and lets the design scale from 16 to 256 channels without per-channel driver rework, while the LVDS DDR output keeps board trace count manageable.
موصى به
Portable Instrumentation and Data Acquisition
Portable digital oscilloscopes, spectrum analyzers, and arbitrary waveform recorders benefit from the ADC1415S125HN-C1's combination of 14-bit resolution and 125 MSPS in a compact 40-VFQFPN. The on-chip input buffer accepts direct connection from a front-end attenuator/probe network, while the SPI configuration interface lets the host MCU reprogram operating mode at run time. Compared to a 16-bit alternative, the 14-bit converter provides a useful ~6 dB SNR margin while drawing less power, extending battery life on field-portable instruments.
موصى به
Industrial Multi-Carrier Power-Line Communication
Industrial PLC modems operating in the 1-50 MHz band need a high dynamic-range ADC to resolve narrow-band carriers from a noisy mains environment. The ADC1415S125HN-C1's pipelined core and 14-bit resolution digitize a 50 MHz IF directly, allowing the DSP to perform OFDM demodulation, channel estimation, and impulse-noise blanking digitally. The integrated input buffer tolerates the high common-mode swings present on PLC front-ends and the LVDS DDR output supports routing to a remote FPGA over backplane connectors without EMI issues.
موصى به
Radar and Lidar Digitizer Front-End
Short-range automotive and industrial radar/lidar front-ends use the ADC1415S125HN-C1 to digitize IF outputs from the mixer stage at up to 125 MSPS. The 14-bit dynamic range is sufficient to resolve small moving targets in the presence of large stationary clutter, and the pipelined latency is acceptable because range-Doppler processing in the downstream FPGA handles fixed-latency data deterministically. The exposed-pad VFQFPN package keeps the PCB footprint small enough to fit behind a single antenna element on a phased-array board.
موصى به
Software-Defined Radio Wideband IF
Wideband software-defined radio receivers often digitize a 50 MHz IF at 122.88 MSPS or 125 MSPS, which matches the ADC1415S125HN-C1's top speed bin exactly. The 14-bit dynamic range is adequate for amateur, public-safety, and cellular monitoring applications; the integrated input buffer pairs directly with a 50 ohm balun for a flat passband up to ~200 MHz. Designers can switch to LVDS DDR mode when routing to an FPGA on a separate mezzanine card, reducing the connector pin count by half versus parallel CMOS.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ADC1415S125HN-C1 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ADC1415S105HN-C1 | ADC1415S080HN-C1 | ADC1415S065HN-C1 | ADC1413S125HN-C1 | ADC1015S125HN/C1 |
|---|---|---|---|---|---|---|
| Package | 40-VFQFPN (6x6) with EP | 40-VFQFPN (6x6) - same | 40-VFQFPN (6x6) - same | 40-VFQFPN (6x6) - same | 40-VFQFPN (6x6) - same | 40-VFQFPN (6x6) - same |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Resolution | 14 bits | 14 bits | 14 bits | 14 bits | 13 bits | 10 bits |
| Max Sample Rate | 125 MSPS | 105 MSPS | 80 MSPS | 65 MSPS | 125 MSPS | 125 MSPS |
| Number of Channels | 1 | 1 | 1 | 1 | 1 | 1 |
| Input Buffer | Yes (integrated) | Yes | Yes | Yes | Yes | Yes |
| Digital Output | CMOS or LVDS DDR | CMOS or LVDS DDR | CMOS or LVDS DDR | CMOS or LVDS DDR | CMOS or LVDS DDR | CMOS or LVDS DDR |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Config Interface | Serial (SPI) | Serial (SPI) | Serial (SPI) | Serial (SPI) | Serial (SPI) | Serial (SPI) |
أبرز الفروقات
- Top speed grade in the pin-compatible ADC1415S family (مقابلADC1415S105HN-C1)
- Integrated input buffer simplifies front-end (مقابلADS62P48IRGC25 (TI 14-bit 125 MSPS))
- 14-bit resolution at 125 MSPS in a 6x6 mm QFN (مقابلAD9268XCPZ-125 (16-bit 125 MSPS))
ملاحظات التصميم
Estimated: based on the published IDT/Renesas datasheet excerpt, the ADC1415S125HN-C1 draws roughly 350-400 mW from a 3.0 V analog supply at 125 MSPS with the LVDS DDR output enabled. A ferrite bead plus a 10 uF + 0.1 uF decoupling network should be placed within 5 mm of each AVDD/DRVDD/LVDSVDD pin. Use a separate analog ground island connected to the exposed pad at a single point to avoid digital return currents polluting the analog front-end.
The differential analog input traces (AINP/AINN) and the differential clock traces (CLK+/CLK-) must be length-matched within 0.5 mm and routed on the top layer over a continuous ground pour to control the input common-mode rejection. The LVDS data outputs should be routed as 100 ohm differential pairs with ground shielding between adjacent pairs to limit crosstalk. The exposed pad (pin 41) must be soldered to a ground pour with at least 8 thermal vias for heat extraction.
Drive the CLK+/CLK- input with a low-jitter, differential PECL/LVDS clock source; clock jitter above 0.5 ps RMS will noticeably degrade SNR at high input frequencies. For the analog input, place a 1:1 or 1:2 balun (e.g., Mini-Circuits ADT1-1WT or similar) directly at the AINP/AINN pins to convert single-ended drive to differential and suppress even-order harmonics. The on-chip input buffer eliminates the need for an additional high-bandwidth ADC driver, simplifying the front-end to two passive components plus a balun.
Do not float the SPI CSN pin; it must be driven low during configuration writes or the device will ignore SPI commands. Do not enable the CMOS output mode while LVDS pins are left floating - either tie unused LVDS outputs to ground or configure them as CMOS via SPI. If the analog input is left open, the on-chip input buffer will saturate and the output code will stick at full scale or zero; a DC bias path (via the VCM pin or a bias-tee) must always be present on AINP/AINN.
معلومات الامتثال
RoHS and REACH compliance per Renesas product page. Halogen-free status not explicitly stated in the public datasheet excerpt; confirm with Renesas sales for halogen-free SKU if required. The -C1 suffix denotes the standard industrial screening level; no automotive AEC-Q100 grade is offered for this family.
