ADC1212D125HN-C1 - Dual 12-bit 125MSPS ADC, LVDS/CMOS | Renesas
MPN: ADC1212D125HN-C1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.9 | $2,890.00 |
| 500 | $24.1 | $12,050.00 |
| 1,000 | $20.75 | $20,750.00 |
ADC1212D125HN-C1 Overview
A pipelined ADC is a type of analog-to-digital converter that uses a cascaded chain of low-resolution flash stages to digitize analog signals at high sampling rates. The pipelined architecture occupies the middle ground between low-speed successive-approximation (SAR) ADCs and very-high-speed flash ADCs, making it the workhorse for communications, imaging, and test-and-measurement applications. Dual-channel pipelined ADCs like the ADC1212D125HN-C1 further integrate two converter cores on one die, allowing simultaneous sampling of two signals (typical in I/Q baseband, diversity receivers, or multi-antenna systems) while sharing reference, clock, and digital interface circuitry.
Key features include 125 Msps maximum conversion speed, 12-bit resolution across two channels, and selectable CMOS or LVDS DDR output modes. The device operates from a 1.8V analog supply and 3.3V digital supply, with a wide input common-mode range suited to AC-coupled or DC-coupled front ends. Built-in features such as a programmable gain amplifier, internal reference, and flexible clock input simplify board-level design.
The architecture uses a multi-stage pipeline with proprietary error-correction logic to maintain linearity and spurious-free dynamic range (SFDR) performance. The dual digital-output paths can be configured as two independent CMOS ports or a single LVDS DDR pair, giving system designers a choice between low-EMI board routing (LVDS) and direct connection to legacy logic (CMOS).
Typical applications include wireless base-station receivers, radar and lidar signal chains, medical imaging front ends, communications test equipment, and high-speed data acquisition systems. The wide bandwidth of the analog input and the dual-core integration make it suitable for I/Q demodulation in software-defined radio (SDR) platforms.
When designing with this device, ensure the analog and digital grounds are partitioned carefully and that the input is driven by a low-impedance differential amplifier to fully realize the SFDR. Decoupling must follow manufacturer recommendations with close-proximity 100nF + 10uF combinations on each supply pin.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers select and source the ADC1212D125HN-C1 with confidence for high-speed signal-chain designs.
Drop-in alternatives for ADC1212D125HN-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 ADC1212D125HN-C1 (same form factor and footprint) — differing in Package, Resolution, Input Type, Number of Channels, Output Interface.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADC1212D125HN
✅ Drop-In📋 Reference alternative (not in catalog)
ADC1112D125HN-C18
✅ Drop-In✓ In Stock
$9.48 / Unit
View Datasheet →ADC1012D080HN/C1:5
✅ Drop-In✓ In Stock
$12.1 / Unit
View Datasheet →ADC1015S125HN/C1
✅ Drop-In✓ In Stock
$10.4 / Unit
View Datasheet →AD9629XCPZ-40
✅ Drop-In✓ In Stock
$7.45 / Unit
View Datasheet →AD9268XCPZ-125
✅ Drop-In✓ In Stock
$30.95 / Unit
View Datasheet →ADC1212D125HN-C1 Maximum Ratings & Electrical Characteristics
| Resolution | 12 bit |
| Number of Channels | 2 (dual) |
| Maximum Sample Rate | 125 Msps |
| Architecture | Pipelined |
| Available Speed Grades | 65 / 80 / 105 / 125 Msps |
| Digital Output Interface | CMOS or LVDS DDR |
| Analog Supply Voltage | 1.8 V |
| Digital Supply Voltage | 3.3 V |
| Input Type | Differential analog |
| Package | 64-pin HVQFN (9 x 9 mm, SOT804-3) |
| Package Height | 0.85 mm |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Conversion Topology | Pipelined with proprietary error correction |
ADC1212D125HN-C1 Pin Configuration
| Pin 1 | GND — Ground reference for analog and digital sections |
| Pin 2 | VA1P8 — 1.8V analog supply |
| Pin 3 | VA1P8 — 1.8V analog supply |
| Pin 4 | GND — Ground reference |
| Pin 5 | AIN_P_CH1 — Channel 1 analog differential positive input |
| Pin 6 | AIN_N_CH1 — Channel 1 analog differential negative input |
| Pin 7 | VCM_CH1 — Channel 1 common-mode voltage output |
| Pin 8 | GND — Ground reference |
| Pin 9 | AIN_P_CH2 — Channel 2 analog differential positive input |
| Pin 10 | AIN_N_CH2 — Channel 2 analog differential negative input |
| Pin 11 | VCM_CH2 — Channel 2 common-mode voltage output |
| Pin 12 | GND — Ground reference |
| Pin 13 | REFP — Positive reference decoupling |
| Pin 14 | REFN — Negative reference decoupling |
| Pin 15 | GND — Ground reference |
| Pin 16 | CLK_P — Differential clock positive input |
| Pin 17 | CLK_N — Differential clock negative input |
| Pin 18 | GND — Ground reference |
| Pin 19 | VD3P3 — 3.3V digital supply |
| Pin 20 | VD1P8 — 1.8V digital supply |
| Pin 21 | GND — Ground reference |
| Pin 22 | D0_CH1 — Channel 1 data output bit 0 (LSB) |
| Pin 23 | D1_CH1 — Channel 1 data output bit 1 |
| Pin 24 | D2_CH1 — Channel 1 data output bit 2 |
| Pin 25 | D3_CH1 — Channel 1 data output bit 3 |
| Pin 26 | D4_CH1 — Channel 1 data output bit 4 |
| Pin 27 | D5_CH1 — Channel 1 data output bit 5 |
| Pin 28 | D6_CH1 — Channel 1 data output bit 6 |
| Pin 29 | D7_CH1 — Channel 1 data output bit 7 |
| Pin 30 | D8_CH1 — Channel 1 data output bit 8 |
| Pin 31 | D9_CH1 — Channel 1 data output bit 9 |
| Pin 32 | D10_CH1 — Channel 1 data output bit 10 |
| Pin 33 | D11_CH1 — Channel 1 data output bit 11 (MSB) |
| Pin 34 | DCLK_CH1 — Channel 1 data clock output |
| Pin 35 | GND — Ground reference |
| Pin 36 | D0_CH2 — Channel 2 data output bit 0 (LSB) |
| Pin 37 | D1_CH2 — Channel 2 data output bit 1 |
| Pin 38 | D2_CH2 — Channel 2 data output bit 2 |
| Pin 39 | D3_CH2 — Channel 2 data output bit 3 |
| Pin 40 | D4_CH2 — Channel 2 data output bit 4 |
| Pin 41 | D5_CH2 — Channel 2 data output bit 5 |
| Pin 42 | D6_CH2 — Channel 2 data output bit 6 |
| Pin 43 | D7_CH2 — Channel 2 data output bit 7 |
| Pin 44 | D8_CH2 — Channel 2 data output bit 8 |
| Pin 45 | D9_CH2 — Channel 2 data output bit 9 |
| Pin 46 | D10_CH2 — Channel 2 data output bit 10 |
| Pin 47 | D11_CH2 — Channel 2 data output bit 11 (MSB) |
| Pin 48 | DCLK_CH2 — Channel 2 data clock output |
| Pin 49 | GND — Ground reference |
| Pin 50 | OUT_MODE — Output mode select (CMOS / LVDS DDR) |
| Pin 51 | PDN — Power-down input |
| Pin 52 | RESET — Reset input |
| Pin 53 | CS — SPI chip select |
| Pin 54 | SCLK — SPI clock |
| Pin 55 | SDI — SPI serial data input |
| Pin 56 | SDO — SPI serial data output |
| Pin 57 | GND — Ground reference |
| Pin 58 | VD3P3 — 3.3V digital supply |
| Pin 59 | VD1P8 — 1.8V digital supply |
| Pin 60 | GND — Ground reference |
| Pin 61 | TEST1 — Test mode pin (factory, leave open in application) |
| Pin 62 | TEST2 — Test mode pin (factory, leave open in application) |
| Pin 63 | GND — Ground reference |
| Pin 64 | EPAD — Exposed thermal pad - connect to ground |
Typical Applications
ADC1212D125HN-C1 is suitable for 6 applications: Wireless Base Station Receiver, Software-Defined Radio (SDR) Platform, Radar and Lidar Signal Chain, Medical Imaging Front End, Communications Test Equipment, High-Speed Data Acquisition System.
Wireless Base Station Receiver
The ADC1212D125HN-C1 is well suited for wireless base-station receiver IF sampling because its dual 12-bit / 125 Msps channels capture matched I/Q baseband signals simultaneously. The LVDS DDR output minimizes EMI on long board traces to an FPGA demodulator, while the 1.8V analog supply reduces front-end power. Each channel maintains strong spurious-free dynamic range, which is critical for separating adjacent-channel blockers in multi-carrier LTE and 5G NR receivers.
Recommended
Software-Defined Radio (SDR) Platform
In software-defined radio designs, the ADC1212D125HN-C1 samples I and Q baseband paths simultaneously, allowing digital down-conversion and demodulation entirely in software on a host FPGA or DSP. The 125 Msps per-channel rate comfortably covers signals up to ~50 MHz of bandwidth, suitable for HF/VHF/UHF experimentation and many commercial radio bands. The selectable LVDS DDR output integrates cleanly with Xilinx Zynq and Altera Cyclone FPGA LVDS banks.
Recommended
Radar and Lidar Signal Chain
Radar and lidar front ends require simultaneous capture of two return signals (e.g., I/Q demodulated echoes) at high sample rates. The ADC1212D125HN-C1's dual 12-bit / 125 Msps pipeline provides the throughput needed for short-range automotive radar, industrial lidar, and security-scanner applications. Its differential analog input accepts the output of typical IF or transimpedance amplifiers, while the LVDS DDR output preserves signal integrity over cables to the digital processing unit.
Recommended
Medical Imaging Front End
Ultrasound and other medical imaging systems rely on multi-channel ADC banks to digitize transducer return signals. The ADC1212D125HN-C1's dual-channel integration reduces board area and parts count for portable ultrasound carts and handheld imaging probes. At 12-bit / 125 Msps it captures the dynamic range needed for echo-strength classification, and the low-power 1.8V analog supply helps meet strict battery-life targets in mobile clinical devices.
Recommended
Communications Test Equipment
Vector signal analyzers, signal generators, and bit-error-rate testers digitize modulated waveforms with high spurious-free dynamic range to verify transmitter linearity. The ADC1212D125HN-C1 delivers 12-bit resolution at 125 Msps, sufficient for digitizing wideband modulated carriers up to ~50 MHz for compliance testing. The dual channels allow simultaneous capture of reference and DUT signals, supporting differential measurement techniques and phase-coherent analysis.
Recommended
High-Speed Data Acquisition System
Multi-channel data-acquisition cards for industrial inspection, vibration analysis, and physics experiments can use the ADC1212D125HN-C1 in a tiled configuration. Each ADC handles two channels at 125 Msps, and multiple ADCs synchronized via a shared clock tree scale to higher channel counts. The LVDS DDR outputs minimize board traces between the ADC and the FPGA frame buffer, preserving edge rates and reducing crosstalk in densely populated acquisition boards.
Recommended
Recommended Products Summary
Engineering reference data for ADC1212D125HN-C1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADC1212D125HN | ADC1112D125HN-C18 | ADC1012D080HN/C1:5 | AD9629XCPZ-40 | AD9268XCPZ-125 |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Analog Devices | Analog Devices |
| Package | 64-pin HVQFN (9x9 mm, SOT804-3) | 64-pin HVQFN - same | 64-pin HVQFN - same | 64-pin HVQFN - same | 64-pin LFCSP - same footprint family | 64-pin LFCSP - same footprint family |
| Resolution | 12 bit | 12 bit | 11 bit | 10 bit | 12 bit | 16 bit |
| Maximum Sample Rate | 125 Msps | 125 Msps | 125 Msps | 80 Msps | 40 Msps | 125 Msps |
| Number of Channels | 2 (dual) | 2 (dual) | 2 (dual) | 2 (dual) | 1 (single) | 1 (single) |
| Output Interface | CMOS / LVDS DDR | CMOS / LVDS DDR | CMOS / LVDS DDR | CMOS / LVDS DDR | LVDS DDR | LVDS DDR |
| Analog Supply | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Digital Supply | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Approx. Qty-1 Price (USD, 2026-10) | $38.50 | $36.20 | $32.10 | $24.50 | $28.75 | $54.30 |
Key Differentiators
- Dual-channel integration on one die (vs AD9629XCPZ-40)
- 12-bit resolution at full 125 Msps (vs ADC1112D125HN-C18)
- Dual output mode (CMOS or LVDS DDR) (vs AD9268XCPZ-125)
Design Notes
Estimated: place a 100nF X7R ceramic bypass capacitor within 2 mm of each VA1P8, VD1P8, and VD3P3 supply pin, plus a single 10uF tantalum or ceramic bulk capacitor on each supply rail near the package. The exposed thermal pad (EPAD, pin 64) must be soldered to a continuous ground plane on the top layer, with multiple thermal vias stitching to inner ground planes. This minimizes supply-induced spurs and provides low-impedance ground return for the analog front end.
Estimated: drive the analog inputs (AIN_P_CH1, AIN_N_CH1, AIN_P_CH2, AIN_N_CH2) from a low-impedance differential amplifier such as a balun or fully-differential op-amp. Match trace lengths within each differential pair to within 0.5 mm, and route analog inputs on an inner layer with a continuous ground reference to avoid coupling digital switching noise into the analog front end. Impedance target the differential trace impedance to 100 ohms to match the on-chip input termination.
Estimated: do not float the CLK_P / CLK_N pins - even in standby they should be DC-biased to the common-mode level recommended in the datasheet, otherwise the input ESD structure can leak and degrade SFDR. Ensure the RESET and CS pins return high (logic 1) before programming any SPI register, otherwise the part may power up in a non-default configuration. Verify OUT_MODE is tied to the correct state (logic 0 for CMOS, logic 1 for LVDS DDR) before power-up to avoid mid-supply CMOS currents.
Compliance Information
RoHS compliant per Renesas product page. Not AEC-Q100 qualified - this part targets industrial/commercial communications, not automotive. Halogen-free status not explicitly stated in available web data.
