ADC1415S125HN-C1 - 14-bit 125 MSPS ADC w/ Input Buffer | Renesas
MPN: ADC1415S125HN-C1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.9 | $2,890.00 |
| 500 | $24.75 | $12,375.00 |
| 1,000 | $21.4 | $21,400.00 |
ADC1415S125HN-C1 Overview
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.
Drop-in alternatives for ADC1415S125HN-C1 — 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 ADC1415S125HN-C1 (same form factor and footprint) — differing in Package, Configuration Interface, Input Type, Operating Temperature, Resolution.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADC1415S105HN-C1
✅ Drop-In✓ In Stock
$26.4 / Unit
View Datasheet →ADC1415S080HN-C1
✅ Drop-In📋 Reference alternative (not in catalog)
ADC1415S065HN-C1
✅ Drop-In✓ In Stock
$21.4 / Unit
View Datasheet →ADC1413S125HN-C1
✅ Drop-In✓ In Stock
$21.3 / Unit
View Datasheet →ADC1015S125HN/C1
✅ Drop-In✓ In Stock
$10.4 / Unit
View Datasheet →ADC1415S125HN-C1 Maximum Ratings & Electrical Characteristics
| Resolution | 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) |
| Package | 40-VFQFPN exposed pad, 6 mm x 6 mm |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +85C |
| Screening Level (per DigiChip listing) | Industrial (commercial) |
| Compliance / RoHS | RoHS compliant (per Renesas product page) |
ADC1415S125HN-C1 Pin Configuration
| Pin 1 | AINP — Differential analog input positive (or single-ended input) |
| Pin 2 | AINN — Differential analog input negative (or common-mode reference) |
| Pin 3 | VCM — Common-mode voltage output for external driver biasing |
| Pin 4 | REFT — Internal reference top - decouple to ground |
| Pin 5 | REFB — Internal reference bottom - decouple to ground |
| Pin 6 | CLK+ — Differential clock input positive |
| Pin 7 | CLK- — Differential clock input negative |
| Pin 8 | CLKGND — Clock ground return |
| Pin 9 | OE/RESET — Output enable / SPI reset |
| Pin 10 | D0/D0P — Data output bit 0 (LVDS P) |
| Pin 11 | D1/D0N — Data output bit 1 (LVDS N) |
| Pin 12 | D2/D1P — Data output bit 2 (LVDS P) |
| Pin 13 | D3/D1N — Data output bit 3 (LVDS N) |
| Pin 14 | D4/D2P — Data output bit 4 (LVDS P) |
| Pin 15 | D5/D2N — Data output bit 5 (LVDS N) |
| Pin 16 | D6/D3P — Data output bit 6 (LVDS P) |
| Pin 17 | D7/D3N — Data output bit 7 (LVDS N) |
| Pin 18 | D8/D4P — Data output bit 8 (LVDS P) |
| Pin 19 | D9/D4N — Data output bit 9 (LVDS N) |
| Pin 20 | D10/D5P — Data output bit 10 (LVDS P) |
| Pin 21 | D11/D5N — Data output bit 11 (LVDS N) |
| Pin 22 | D12/D6P — Data output bit 12 (LVDS P) |
| Pin 23 | D13/D6N — Data output bit 13 (LVDS N) |
| Pin 24 | DOR — Data out-of-range indicator |
| Pin 25 | FSR/PD — Full-scale range adjust / power-down (SPI-configurable) |
| Pin 26 | SCLK — SPI serial clock |
| Pin 27 | SDI — SPI serial data in |
| Pin 28 | SDO — SPI serial data out |
| Pin 29 | CSN — SPI chip select (active low) |
| Pin 30 | OEN — LVDS/common-mode output enable |
| Pin 31 | LVDSVDD — LVDS output driver supply |
| Pin 32 | LVDSVSS — LVDS output driver ground |
| Pin 33 | DRVDD — CMOS output driver supply |
| Pin 34 | DRVSS — CMOS output driver ground |
| Pin 35 | AVDD — Analog 3.0 V supply |
| Pin 36 | AVSS — Analog ground |
| Pin 37 | DVDD — Digital core supply |
| Pin 38 | DVSS — Digital ground |
| Pin 39 | NC — Not connected (per datasheet) |
| Pin 40 | NC — Not connected (per datasheet) |
| Pin 41 | EP — Exposed thermal pad - connect to analog ground |
Typical Applications
ADC1415S125HN-C1 is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for ADC1415S125HN-C1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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) |
Key Differentiators
- Top speed grade in the pin-compatible ADC1415S family (vs ADC1415S105HN-C1)
- Integrated input buffer simplifies front-end (vs ADS62P48IRGC25 (TI 14-bit 125 MSPS))
- 14-bit resolution at 125 MSPS in a 6x6 mm QFN (vs AD9268XCPZ-125 (16-bit 125 MSPS))
Design Notes
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.
Compliance Information
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.
