ADC1212D125HN-C1 - Dual 12-bit 125MSPS ADC, LVDS/CMOS | Renesas
MPN: ADC1212D125HN-C1 ✓ Hoạt độngADC1212D125HN-C1 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ADC1212D125HN-C1 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADC1212D125HN-C1 (cùng hình factor và footprint) — khác nhau ở Package, Input Type, Resolution, Number of Channels, Output Interface.
ADC1212D125HN
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC1112D125HN-C18
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC1012D080HN/C1:5
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC1015S125HN/C1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →AD9629XCPZ-40
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →AD9268XCPZ-125
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC1212D125HN-C1 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 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 |
| Hộp | 64-pin HVQFN (9 x 9 mm, SOT804-3) |
| Package Height | 0.85 mm |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Conversion Topology | Pipelined with proprietary error correction |
Cấu hình chân ADC1212D125HN-C1
| Chân 1 | GND — Ground reference for analog and digital sections |
| Chân 2 | VA1P8 — 1.8V analog supply |
| Chân 3 | VA1P8 — 1.8V analog supply |
| Chân 4 | GND — Ground reference |
| Chân 5 | AIN_P_CH1 — Channel 1 analog differential positive input |
| Chân 6 | AIN_N_CH1 — Channel 1 analog differential negative input |
| Chân 7 | VCM_CH1 — Channel 1 common-mode voltage output |
| Chân 8 | GND — Ground reference |
| Chân 9 | AIN_P_CH2 — Channel 2 analog differential positive input |
| Chân 10 | AIN_N_CH2 — Channel 2 analog differential negative input |
| Chân 11 | VCM_CH2 — Channel 2 common-mode voltage output |
| Chân 12 | GND — Ground reference |
| Chân 13 | REFP — Positive reference decoupling |
| Chân 14 | REFN — Negative reference decoupling |
| Chân 15 | GND — Ground reference |
| Chân 16 | CLK_P — Differential clock positive input |
| Chân 17 | CLK_N — Differential clock negative input |
| Chân 18 | GND — Ground reference |
| Chân 19 | VD3P3 — 3.3V digital supply |
| Chân 20 | VD1P8 — 1.8V digital supply |
| Chân 21 | GND — Ground reference |
| Chân 22 | D0_CH1 — Channel 1 data output bit 0 (LSB) |
| Chân 23 | D1_CH1 — Channel 1 data output bit 1 |
| Chân 24 | D2_CH1 — Channel 1 data output bit 2 |
| Chân 25 | D3_CH1 — Channel 1 data output bit 3 |
| Chân 26 | D4_CH1 — Channel 1 data output bit 4 |
| Chân 27 | D5_CH1 — Channel 1 data output bit 5 |
| Chân 28 | D6_CH1 — Channel 1 data output bit 6 |
| Chân 29 | D7_CH1 — Channel 1 data output bit 7 |
| Chân 30 | D8_CH1 — Channel 1 data output bit 8 |
| Chân 31 | D9_CH1 — Channel 1 data output bit 9 |
| Chân 32 | D10_CH1 — Channel 1 data output bit 10 |
| Chân 33 | D11_CH1 — Channel 1 data output bit 11 (MSB) |
| Chân 34 | DCLK_CH1 — Channel 1 data clock output |
| Chân 35 | GND — Ground reference |
| Chân 36 | D0_CH2 — Channel 2 data output bit 0 (LSB) |
| Chân 37 | D1_CH2 — Channel 2 data output bit 1 |
| Chân 38 | D2_CH2 — Channel 2 data output bit 2 |
| Chân 39 | D3_CH2 — Channel 2 data output bit 3 |
| Chân 40 | D4_CH2 — Channel 2 data output bit 4 |
| Chân 41 | D5_CH2 — Channel 2 data output bit 5 |
| Chân 42 | D6_CH2 — Channel 2 data output bit 6 |
| Chân 43 | D7_CH2 — Channel 2 data output bit 7 |
| Chân 44 | D8_CH2 — Channel 2 data output bit 8 |
| Chân 45 | D9_CH2 — Channel 2 data output bit 9 |
| Chân 46 | D10_CH2 — Channel 2 data output bit 10 |
| Chân 47 | D11_CH2 — Channel 2 data output bit 11 (MSB) |
| Chân 48 | DCLK_CH2 — Channel 2 data clock output |
| Chân 49 | GND — Ground reference |
| Chân 50 | OUT_MODE — Output mode select (CMOS / LVDS DDR) |
| Chân 51 | PDN — Power-down input |
| Chân 52 | RESET — Reset input |
| Chân 53 | CS — SPI chip select |
| Chân 54 | SCLK — SPI clock |
| Chân 55 | SDI — SPI serial data input |
| Chân 56 | SDO — SPI serial data output |
| Chân 57 | GND — Ground reference |
| Chân 58 | VD3P3 — 3.3V digital supply |
| Chân 59 | VD1P8 — 1.8V digital supply |
| Chân 60 | GND — Ground reference |
| Chân 61 | TEST1 — Test mode pin (factory, leave open in application) |
| Chân 62 | TEST2 — Test mode pin (factory, leave open in application) |
| Chân 63 | GND — Ground reference |
| Chân 64 | EPAD — Exposed thermal pad - connect to ground |
Ứng dụng tiêu biểu
ADC1212D125HN-C1 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADC1212D125HN-C1 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Dual-channel integration on one die (vsAD9629XCPZ-40)
- 12-bit resolution at full 125 Msps (vsADC1112D125HN-C18)
- Dual output mode (CMOS or LVDS DDR) (vsAD9268XCPZ-125)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
