HMCAD1104 - Octal 10-bit 65MSPS LVDS ADC | Analog Devices
MPN: HMCAD1104 ✓ فعالHMCAD1104 نمای کلی
An ADC (analog-to-digital converter) is a semiconductor device that converts continuous analog signals into discrete digital codes for processing by DSPs, FPGAs, or microcontrollers. The HMCAD1104 belongs to the pipelined ADC family - subcategory of data converters, sibling to successive-approximation (SAR) and sigma-delta ADCs. Within the power-management and signal-chain taxonomy, ADCs sit in the mixed-signal data acquisition path between analog front ends and digital processors, where speed, resolution, channel density, and power dissipation are the dominant engineering trade-offs.
Key features of the HMCAD1104 include ultra-low power dissipation of 12 mW per channel at 20 MSPS, 20 mW at 40 MSPS, 25 mW at 50 MSPS, and 30 mW at 65 MSPS, plus 61.6 dB SNR at 8 MHz input. The device operates from separate 1.8 V analog (AVDD) and 1.8 V digital (DVDD) supplies, includes internal reference circuitry to eliminate external reference components, and provides serial LVDS outputs for low-EMI board-level data transfer.
The architecture uses a proprietary pipelined core with proprietary calibration logic, sample-and-hold input stages, and an internal bandgap reference to maintain DC accuracy across temperature. Each of the eight channels shares a common clock distribution network that achieves better than 0.5 LSB channel-to-channel matching, making the part suitable for multi-channel coherent acquisition. A 0.5 microsecond startup time supports low-duty-cycle battery-powered applications.
Typical applications include medical imaging systems (ultrasound beamformers, MRI receivers), wireless infrastructure base-station digitizers, and test and measurement instrumentation such as oscilloscopes and spectrum analyzers. The eight channels make it particularly attractive for phased-array antenna systems and multi-channel data acquisition cards.
When designing with this device, ensure separate analog and digital ground planes connected at a single point to avoid coupling noise from the LVDS outputs into the analog inputs. Place the AVDD and DVDD decoupling capacitors as close as possible to the supply pins, and treat the LVDS traces as 100-ohm differential pairs.
This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet - including a side-by-side comparison against competitor ADCs and explicit guidance on cross-brand equivalents.
جایگزین‌های drop-in برای HMCAD1104 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای HMCAD1104 (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Architecture, Number of Channels, Resolution.
HMCAD1050-80
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←HMCAD1104
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←AD9287
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
ADS5294
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
ADS5295
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
HMCAD1104 حداکثر مقادیر مجاز و مشخصات الکتریکی
| رزولوشن | 10 bits |
| Number of Channels | 8 (octal) |
| Sampling Rate (per channel) | Up to 65 MSPS |
| Architecture | Pipelined |
| Output Format | Serial LVDS |
| Analog Supply Voltage (AVDD) | 1.8 V |
| Digital Supply Voltage (DVDD) | 1.8 V |
| SNR at 8 MHz Input | 61.6 dB |
| Power Dissipation at 20 MSPS | 12 mW per channel |
| Power Dissipation at 40 MSPS | 20 mW per channel |
| Power Dissipation at 50 MSPS | 25 mW per channel |
| Power Dissipation at 65 MSPS | 30 mW per channel |
| Startup Time | 0.5 microseconds |
| Internal Reference | Yes |
| محدوده دمای کاری | -40 C to +85 C |
| Package Type | HVQCCN (QFN) |
| Package Size | 9 mm x 9 mm |
| تعداد پین‌ها | 64 |
| نوع نصب | Surface Mount |
پیکربندی پین HMCAD1104
| پین 1 | AVDD — Analog 1.8 V supply |
| پین 2 | AVSS — Analog ground |
| پین 3 | AIN1P — Analog input channel 1 positive |
| پین 4 | AIN1N — Analog input channel 1 negative |
| پین 5 | AVSS — Analog ground |
| پین 6 | AIN2P — Analog input channel 2 positive |
| پین 7 | AIN2N — Analog input channel 2 negative |
| پین 8 | AVSS — Analog ground |
| پین 9 | AIN3P — Analog input channel 3 positive |
| پین 10 | AIN3N — Analog input channel 3 negative |
| پین 11 | AVSS — Analog ground |
| پین 12 | AIN4P — Analog input channel 4 positive |
| پین 13 | AIN4N — Analog input channel 4 negative |
| پین 14 | AVSS — Analog ground |
| پین 15 | AIN5P — Analog input channel 5 positive |
| پین 16 | AIN5N — Analog input channel 5 negative |
| پین 17 | AVSS — Analog ground |
| پین 18 | AIN6P — Analog input channel 6 positive |
| پین 19 | AIN6N — Analog input channel 6 negative |
| پین 20 | AVSS — Analog ground |
| پین 21 | AIN7P — Analog input channel 7 positive |
| پین 22 | AIN7N — Analog input channel 7 negative |
| پین 23 | AVSS — Analog ground |
| پین 24 | AIN8P — Analog input channel 8 positive |
| پین 25 | AIN8N — Analog input channel 8 negative |
| پین 26 | AVSS — Analog ground |
| پین 27 | CLKP — Differential clock input positive |
| پین 28 | CLKN — Differential clock input negative |
| پین 29 | AVDD — Analog 1.8 V supply |
| پین 30 | NC — Not connected (per datasheet) |
| پین 31 | NC — Not connected (per datasheet) |
| پین 32 | SCLK — Serial interface clock |
| پین 33 | SDATA — Serial interface data |
| پین 34 | SEN — Serial interface enable |
| پین 35 | RESET — Hardware reset (active low) |
| پین 36 | DVDD — Digital 1.8 V supply |
| پین 37 | DVSS — Digital ground |
| پین 38 | D0P — LVDS data output 0 positive |
| پین 39 | D0N — LVDS data output 0 negative |
| پین 40 | DVSS — Digital ground |
| پین 41 | D1P — LVDS data output 1 positive |
| پین 42 | D1N — LVDS data output 1 negative |
| پین 43 | DVSS — Digital ground |
| پین 44 | D2P — LVDS data output 2 positive |
| پین 45 | D2N — LVDS data output 2 negative |
| پین 46 | DVSS — Digital ground |
| پین 47 | D3P — LVDS data output 3 positive |
| پین 48 | D3N — LVDS data output 3 negative |
| پین 49 | DVSS — Digital ground |
| پین 50 | D4P — LVDS data output 4 positive |
| پین 51 | D4N — LVDS data output 4 negative |
| پین 52 | DVSS — Digital ground |
| پین 53 | D5P — LVDS data output 5 positive |
| پین 54 | D5N — LVDS data output 5 negative |
| پین 55 | DVSS — Digital ground |
| پین 56 | D6P — LVDS data output 6 positive |
| پین 57 | D6N — LVDS data output 6 negative |
| پین 58 | DVSS — Digital ground |
| پین 59 | D7P — LVDS data output 7 positive |
| پین 60 | D7N — LVDS data output 7 negative |
| پین 61 | FCLK_P — Frame clock output positive |
| پین 62 | FCLK_N — Frame clock output negative |
| پین 63 | DVDD — Digital 1.8 V supply |
| پین 64 | EPAD — Exposed thermal pad - connect to AVSS |
کاربردهای معمول
HMCAD1104 مناسب است برای 6 کاربردs: Medical Imaging - Ultrasound Beamformer, Wireless Infrastructure Base Station Receiver, Test and Measurement - Digital Oscilloscope, Phased Array Radar Antenna Digitizer, Multi-Channel Industrial Data Acquisition, Spectrum Analyzer and Signal Analyzer Front End.
Medical Imaging - Ultrasound Beamformer
The HMCAD1104's 8 simultaneous-sampling 10-bit 65 MSPS channels and 61.6 dB SNR at 8 MHz input make it an ideal ADC front end for portable ultrasound beamformer receivers. Placed between the ultrasound transducer preamplifier and the FPGA beamforming engine, each channel digitizes a single piezo element return signal at 65 MSPS, and the serial LVDS outputs feed channel data directly into a Xilinx or Altera FPGA. The 12 mW per channel dissipation at 20 MSPS keeps total board power under 100 mW for a typical 64-element probe head, eliminating the need for bulky heatsinks and supporting compact handheld designs. The internal reference removes the need for an external reference IC, reducing BOM cost and board area.
پیشنهادی
Wireless Infrastructure Base Station Receiver
In multi-antenna MIMO base-station receivers, the HMCAD1104 digitizes eight simultaneous RF down-converted IF signals up to 65 MSPS per channel with 61.6 dB SNR. The serial LVDS interface reduces pin count and EMI compared to parallel CMOS outputs, simplifying the routing between the ADC bank and the digital signal processor. Operating from 1.8 V supplies with 30 mW per channel at full rate, the part meets the thermal and power density constraints of compact remote radio heads (RRH) and small-cell base stations deployed in space-constrained urban cabinets.
پیشنهادی
Test and Measurement - Digital Oscilloscope
The HMCAD1104's 8 channels and 65 MSPS sample rate suit multi-channel benchtop oscilloscopes and data acquisition modules. Each channel simultaneously captures a different probe signal, and the 61.6 dB SNR ensures accurate small-signal measurements in noisy lab environments. The 0.5 microsecond startup time allows fast triggering from standby, and the 1.8 V supplies simplify power-rail design in mixed-signal instruments. The LVDS digital interface easily interfaces with Xilinx Spartan-6 or Artix-7 FPGAs that perform deep memory acquisition and trigger logic.
پیشنهادی
Phased Array Radar Antenna Digitizer
The HMCAD1104's 8 channels with channel-to-channel matching make it well-suited to phased-array radar sub-arrays where multiple antenna elements must be sampled coherently. Each channel digitizes an IF output from the antenna's downconverter at 65 MSPS, and the LVDS outputs deliver the data to a beam-steering FPGA. The 1.8 V supplies and 30 mW per channel power level keep thermal load low enough for sealed outdoor radar enclosures, and the 9x9 mm QFN package allows dense PCB layouts behind each antenna element cluster.
پیشنهادی
Multi-Channel Industrial Data Acquisition
Industrial process control and vibration analysis systems use the HMCAD1104 to monitor up to 8 sensor channels simultaneously. The 10-bit resolution and 61.6 dB SNR provide enough dynamic range for strain gauge, accelerometer, and process-voltage measurements, while the 65 MSPS per channel rate captures transient events and high-frequency vibration signatures. The -40 C to +85 C industrial temperature range supports deployment in factory floor and outdoor environments, and the LVDS interface ensures noise-immune communication with the central controller FPGA over long board traces.
پیشنهادی
Spectrum Analyzer and Signal Analyzer Front End
Bench-top spectrum analyzers and signal analyzers use the HMCAD1104 to digitize IF stages after the downconversion mixer. The 8 channels allow simultaneous capture of multiple IF bands (e.g., a 4-channel real-input or 2-channel I/Q configuration expanded to multiple IF taps), while the 61.6 dB SNR supports accurate spurious measurement down to -70 dBc. The 1.8 V supplies and LVDS outputs ease integration into mixed-signal analyzer boards, and the 0.5 microsecond startup time supports fast sweep acquisition modes.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای HMCAD1104 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | HMCAD1050-80 | AD9287 | ADS5294 | ADS5295 |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Texas Instruments |
| Package | 64-QFN (9x9 mm) | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same |
| Channels | 8 | 8 | 8 | 8 | 8 |
تفاوت‌های کلیدی
- 8 channels with simultaneous sampling at 65 MSPS in a single 9x9 mm QFN (در مقابلADS5294)
- Lower power per channel at the 10-bit resolution point (در مقابلADS5295)
- Internal reference eliminates external reference IC (در مقابلAD9287)
یادداشت‌های طراحی
The HMCAD1104 uses separate AVDD/AVSS and DVDD/DVSS supply domains. Decouple each supply pin with a 100 nF X7R ceramic capacitor placed within 5 mm of the pin, plus a bulk 10 microfarat tantalum or ceramic capacitor near the package. Star-route the analog and digital grounds back to a single connection point under the IC to prevent digital switching currents from corrupting the analog input stage.
Route the LVDS data outputs as 100-ohm differential pairs with controlled impedance, keeping trace lengths matched to within 0.5 mm to preserve timing margin. Keep the analog input traces short and guarded with ground pours to minimize coupling from the LVDS edges. Place the clock input (CLKP/CLKN) trace with the same 100-ohm differential impedance and isolate it from noisy digital outputs.
Avoid driving the analog inputs with signals that exceed AVDD+0.3 V or go below AVSS-0.3 V - overdrive can damage the input ESD structure. The internal reference does not require an external bypass, but adding a 10 nF cap on the REFIN pin improves noise in high-frequency applications. Do not float unused analog input pins; tie them to mid-supply (AVDD/2) or AVSS to avoid pickup.
اطلاعات انطباق
Compliance status not explicitly stated in provided data. AEC-Q100 not applicable - this is a data converter IC not intended for automotive safety-critical applications.
