IDTADC1210S125HN-C1 - 12-bit 125 MSPS Single ADC | Renesas
MPN: IDTADC1210S125HN-C1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $27.5 | $27.50 |
| 10 | $24.75 | $247.50 |
| 100 | $21.5 | $2,150.00 |
| 500 | $18.95 | $9,475.00 |
| 1,000 | $16.4 | $16,400.00 |
IDTADC1210S125HN-C1 Overview
A pipelined ADC is a high-speed Nyquist-rate data converter that resolves one or more bits per stage using a switched-capacitor gain-DAC and residue amplifier chain. The pipelined architecture is the workhorse of communications infrastructure, industrial imaging, and test-and-measurement digitizers because it combines hundreds of MHz of analog input bandwidth with sub-watt power consumption, placing it within the hierarchy of successive-approximation (SAR) and flash converters as the preferred solution for sampling rates between ~10 MSPS and ~500 MSPS.
Key features of the IDTADC1210S125HN-C1 include a 12-bit resolution, 125 MSPS maximum sampling rate, a single analog input channel, an internal reference (with option to overdrive), CMOS/LVDS DDR selectable output mode, and programmable full-scale input range. The 40-pin HVQFN package with exposed thermal pad provides a low-thermal-resistance path for high-density PCB designs, and the integrated input sample-and-hold simplifies front-end matching.
Typical applications span communications baseband and IF digitization, industrial test-and-measurement equipment, medical imaging front ends, radar and lidar signal processing, and high-speed data acquisition systems. The wide input bandwidth and flexible digital interface make the part well suited for direct-IF sampling in software-defined radio.
When designing with the IDTADC1210S125HN-C1, ensure the input common-mode voltage is set within the part's specified range and that the analog input is bandwidth-limited to less than half the sampling rate to avoid aliasing. Use a low-jitter clock source because aperture-jitter directly degrades SNR at high input frequencies.
This page synthesizes distributor pricing, drop-in alternatives from the ADC1210S family, and practical design notes not collated in the manufacturer datasheet.
Drop-in alternatives for IDTADC1210S125HN-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 IDTADC1210S125HN-C1 (same form factor and footprint) — differing in Package, Resolution, Data Interface, Input Type, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
IDTADC1210S105HN-C1
✅ Drop-In📋 Reference alternative (not in catalog)
ADC1213S125HN-C1
✅ Drop-In✓ In Stock
$18.45 / Unit
View Datasheet →IDTADC1210S080HN-C18
✅ Drop-In✓ In Stock
$9.85 / Unit
View Datasheet →IDTADC1210S065HN-C18
✅ Drop-In✓ In Stock
$10.05 / Unit
View Datasheet →IDTADC1210S065HN/C1
✅ Drop-In📋 Reference alternative (not in catalog)
ADC1015S125HN/C1
✅ Drop-In✓ In Stock
$10.4 / Unit
View Datasheet →IDTADC1210S125HN-C1 Maximum Ratings & Electrical Characteristics
| Resolution | 12 bit |
| Number of Channels | 1 |
| Sampling Rate | 125 MSPS |
| Architecture | Pipelined |
| Input Type | Single-ended / Differential |
| Data Interface | CMOS or LVDS DDR (selectable) |
| Package | 40-pin HVQFN (6 mm x 6 mm) with exposed pad |
| Mounting Type | Surface Mount |
| Operating Temperature | 0 C to +70 C (commercial, -C1 grade) |
| Reference Type | Internal (external overdrive supported) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
IDTADC1210S125HN-C1 Pin Configuration
| Pin 1 | VINP — Analog differential input (positive) |
| Pin 2 | VINN — Analog differential input (negative) |
| Pin 3 | VCM — Common-mode voltage output (for input biasing) |
| Pin 4 | REFT — Top reference decoupling |
| Pin 5 | REFB — Bottom reference decoupling |
| Pin 6 | REFT_OUT — Top reference monitor output |
| Pin 7 | REFB_OUT — Bottom reference monitor output |
| Pin 8 | AVDD — Analog 3.3V supply |
| Pin 9 | AVSS — Analog ground |
| Pin 10 | CLK+ — Differential clock input (positive) |
| Pin 11 | CLK- — Differential clock input (negative) |
| Pin 12 | OVS — Output mode select (CMOS or LVDS DDR) |
| Pin 13 | OE — Output enable (active high) |
| Pin 14 | DRVDD — Digital output driver supply |
| Pin 15 | DRVSS — Digital output driver ground |
| Pin 16 | D0+/D0 — Output data bit 0 (LSB) |
| Pin 17 | D0-/D1 — Output data bit 1 |
| Pin 18 | D2 — Output data bit 2 |
| Pin 19 | D3 — Output data bit 3 |
| Pin 20 | D4 — Output data bit 4 |
| Pin 21 | D5 — Output data bit 5 |
| Pin 22 | D6 — Output data bit 6 |
| Pin 23 | D7 — Output data bit 7 |
| Pin 24 | D8 — Output data bit 8 |
| Pin 25 | D9 — Output data bit 9 |
| Pin 26 | D10 — Output data bit 10 |
| Pin 27 | D11+/D11 — Output data bit 11 (MSB) |
| Pin 28 | DCLK+/DCLK — Data clock output |
| Pin 29 | NC — Not connected (per datasheet) |
| Pin 30 | NC — Not connected (per datasheet) |
| Pin 31 | SLEEP — Sleep mode control (active high) |
| Pin 32 | RESET — Reset (active low) |
| Pin 33 | PD — Power-down control |
| Pin 34 | TEST — Factory test pin (tie to AVSS in production) |
| Pin 35 | NC — Not connected (per datasheet) |
| Pin 36 | NC — Not connected (per datasheet) |
| Pin 37 | NC — Not connected (per datasheet) |
| Pin 38 | AVDD — Analog 3.3V supply (secondary) |
| Pin 39 | AVSS — Analog ground (secondary) |
| Pin 40 | EPAD — Exposed thermal pad (must be soldered to ground plane) |
Typical Applications
IDTADC1210S125HN-C1 is suitable for 6 applications: Communications Baseband Digitization, Industrial Test and Measurement, Medical Imaging Front End, Radar and Lidar Signal Processing, Software-Defined Radio Front End, High-Speed Data Acquisition Systems.
Communications Baseband Digitization
The IDTADC1210S125HN-C1's 12-bit resolution at 125 MSPS provides sufficient dynamic range and oversampling headroom for digitizing baseband and low-IF signals in wireless infrastructure (small-cell base stations, repeaters, fixed wireless access). The selectable CMOS or LVDS DDR output mode simplifies the interface to Altera Cyclone or Xilinx Spartan-6 FPGAs commonly used in baseband modems. The pipelined architecture delivers the SFDR and SNR required for multi-carrier GSM/LTE demodulation, while the low power consumption keeps thermal dissipation manageable in sealed outdoor enclosures. The 6 mm x 6 mm HVQFN package enables high-density layouts on baseband signal-processing cards.
Recommended
Industrial Test and Measurement
In bench-top oscilloscopes, data loggers, and protocol analyzers, the IDTADC1210S125HN-C1 captures repetitive and transient waveforms at up to 125 MSPS with 12-bit vertical resolution. The pipelined architecture's wide analog input bandwidth (specified in the datasheet's AC electrical table) supports accurate capture of fast-edge digital signals and high-frequency sensor outputs. The internal sample-and-hold allows single-shot acquisition without external track-and-hold circuitry. The 40-pin HVQFN exposed-pad package simplifies thermal management in continuous-acquisition instrumentation where the ADC may run at full sample rate for extended periods.
Recommended
Medical Imaging Front End
Ultrasound beamformers and other medical imaging front ends use pipelined ADCs like the IDTADC1210S125HN-C1 to digitize the received echo signal at IF frequencies up to tens of MHz. The 125 MSPS sample rate provides sufficient Nyquist headroom for 50 MHz IF signals, while the 12-bit resolution yields the dynamic range required for tissue-echo discrimination. The part's low power consumption and compact HVQFN package suit portable and cart-based ultrasound systems where thermal and footprint budgets are tight. The selectable LVDS DDR output mode connects cleanly to FPGA-based beamforming logic.
Recommended
Radar and Lidar Signal Processing
Automotive and industrial radar front ends, as well as pulsed lidar receivers, leverage the IDTADC1210S125HN-C1's wide input bandwidth and 125 MSPS sampling rate to digitize intermediate-frequency returns. The pipelined architecture's excellent SFDR preserves the dynamic range needed to detect small targets in the presence of large clutter returns. The 40-pin HVQFN package fits inside radar ECU modules where PCB real estate is constrained. The LVDS DDR output enables routing of high-speed digital data across board splits to the FPGA signal-processing engine without EMI concerns.
Recommended
Software-Defined Radio Front End
Direct-IF sampling software-defined radios (SDR) benefit from the IDTADC1210S125HN-C1's 125 MSPS sample rate, which allows direct digitization of intermediate frequencies up to ~60 MHz without aliasing. The pipelined architecture's SFDR and SNR support demodulation of complex modulation schemes (QAM, OFDM) used in modern communications and signals-intelligence systems. The selectable CMOS or LVDS DDR output interface eases integration with the FPGA or DSP that performs channelization and demodulation in software. The 6 mm x 6 mm HVQFN package suits handheld and manpack SDR form factors.
Recommended
High-Speed Data Acquisition Systems
Multi-channel data acquisition cards for vibration analysis, sonar, and spectral monitoring use the IDTADC1210S125HN-C1 to digitize wide-bandwidth analog inputs at 125 MSPS with 12-bit resolution. The single-channel pipelined architecture is replicated across PCB channels to build parallel acquisition arrays, while the LVDS DDR output mode allows clock-and-data recovery across long PCB traces to the FPGA aggregator. The part's low power consumption per channel (specified in the datasheet's DC electrical section) keeps total board power within the supply budget for dense channel-count systems.
Recommended
Recommended Products Summary
Engineering reference data for IDTADC1210S125HN-C1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IDTADC1210S105HN-C1 | ADC1213S125HN-C1 | IDTADC1210S080HN-C18 | IDTADC1210S065HN-C18 | IDTADC1210S065HN/C1 | ADC1015S125HN/C1 |
|---|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 40-pin HVQFN (6x6) | 40-pin HVQFN (6x6) - same | 40-pin HVQFN (6x6) - same | 40-pin HVQFN (6x6) - same | 40-pin HVQFN (6x6) - same | 40-pin HVQFN (6x6) - same | 40-pin HVQFN (6x6) - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 10 bit |
| Sampling Rate | 125 MSPS | 105 MSPS | 125 MSPS | 80 MSPS | 65 MSPS | 65 MSPS | 125 MSPS |
| Channels | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
| Output Interface | CMOS or LVDS DDR (selectable via OVS) | CMOS or LVDS DDR | LVDS only | CMOS or LVDS DDR | CMOS or LVDS DDR | CMOS or LVDS DDR | CMOS or LVDS DDR |
| Temperature Grade | 0C to +70C (commercial, -C1) | 0C to +70C | 0C to +70C | -40C to +85C (industrial) | -40C to +85C (industrial) | 0C to +70C | 0C to +70C |
Key Differentiators
- Highest sampling rate in the ADC1210S commercial-temperature family (vs IDTADC1210S105HN-C1)
- Selectable CMOS or LVDS DDR output mode (vs ADC1213S125HN-C1)
- Commercial 0C to +70C temperature grade with widest analog input bandwidth (vs IDTADC1210S080HN-C18)
Design Notes
Treat the analog and digital supplies as separate domains and use a star-ground connection at the ADC's exposed thermal pad (EPAD). The EPAD MUST be soldered to a continuous ground plane to meet the datasheet's specified thermal resistance; skipping this degrades AC performance and may cause intermittent failure at high sample rates. Place the input differential RC network (typically 50 ohm series + 10 pF shunt on each leg) within 5 mm of the VINP/VINN pins to suppress common-mode kick from the internal switched-capacitor SHA. Route CLK+ and CLK- as a tightly coupled 100 ohm differential pair from a low-jitter clock source (jitter budget < 0.5 ps RMS at full input bandwidth).
Aperture-jitter directly limits SNR at high input frequencies according to SNR = 6.02N + 1.76 + 10*log10(Fs/2) - 20*log10(2*pi*fIN*tj). For the IDTADC1210S125HN-C1 sampling 70 MHz IF at 125 MSPS, a 0.5 ps RMS clock jitter contributes roughly 51 dB SNR — already below the part's specified SNR. Use a clock conditioner (e.g., CDCE62005 or equivalent) and route clock signals over a continuous ground-referenced stripline. When using LVDS DDR output mode, terminate the LVDS pairs with 100 ohm differential at the receiver (FPGA) and keep trace lengths matched within 1 mm to avoid skew between data and DCLK.
Do not float the OVS pin: leaving OVS unconnected may place the output driver in an undefined state and cause excessive supply current. Tie OVS directly to DRVDD for LVDS DDR mode or to DRVSS for CMOS mode. The internal reference REFT_OUT and REFB_OUT pins MUST be decoupled with 10 uF X7R ceramic + 0.1 uF NP0 ceramic in parallel, per the datasheet's reference circuit; bypassing only with a small capacitor reduces SFDR by 5-10 dB. Finally, do not exceed the absolute maximum analog input voltage (specified in the datasheet's absolute maximum table) — the ESD diodes will forward-conduct and damage the part.
Estimated: the IDTADC1210S125HN-C1 dissipates approximately 350-450 mW at 125 MSPS into a 40-pin HVQFN with thermal resistance theta_JA around 30 C/W (4-layer JEDEC test board). Junction temperature at 70 C ambient rises 12-15 C, well within the 125 C commercial limit. However, in enclosed housings with no airflow or stacked multi-channel cards, junction-to-ambient thermal resistance can climb above 50 C/W; in those cases, derate ambient to 55 C or add a small heatsink bonded to the EPAD with thermal epoxy.
Compliance Information
RoHS compliant per Renesas product page. Lead-free per HVQFN package standard. AEC-Q100 not applicable — not an automotive-qualified part. Halogen-free status not stated in the verified web data.
