HMCAD1041-80 - 10-Bit 80 MSPS Low-Power ADC | Analog Devices
MPN: HMCAD1041-80 ✓ Hoạt độngHMCAD1041-80 Tóm tắt
An ADC (Analog-to-Digital Converter) is a data acquisition component that samples continuous analog signals and converts them into discrete digital codes. ADCs sit within the broader signal chain hierarchy: ADC -> data converter -> data acquisition IC -> mixed-signal semiconductor. The HMCAD1041-80 belongs to the pipelined ADC family, which uses a multi-stage architecture to achieve high sampling rates at moderate resolution.
Key features include an internal reference circuitry eliminating external reference components, a 1.8 V core supply voltage, a 3.3 V analog/digital I/O supply, and a differential clock interface supporting LVDS, LVPECL, sine wave, and CMOS clock inputs. The pipelined architecture provides excellent linearity optimized for input frequencies up to Nyquist, while the CMOS output data interface simplifies FPGA/ASIC connectivity without requiring LVDS deserialization.
Typical applications include portable medical imaging, low-power wireless communication baseband digitization, handheld test and measurement equipment, ultrasound front-end ADCs, and portable industrial data loggers. Its pin-compatibility with HMCAD1041-40, HMCAD1051-40, and HMCAD1051-80 allows platform design reuse across sampling rates and resolution variants.
When designing with this device, ensure the analog input is driven by a low-jitter, differential source for optimal SNR; place the 1.8 V and 3.3 V decoupling capacitors as close as possible to the supply pins, and use a properly terminated differential clock to minimize aperture jitter.
This page synthesizes distributor pricing, drop-in compatible ADC variants, and practical design notes that complement the official Analog Devices datasheet.
Bộ thay thế dễ dàng lắp đặt cho HMCAD1041-80 — 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 HMCAD1041-80 (cùng hình factor và footprint) — khác nhau ở Resolution, Architecture, Package, Power Dissipation, Input Type.
HMCAD1041-40
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
HMCAD1051-40
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →HMCAD1051-80
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS8318IDRCR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →HMCAD1041-80 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 10 bit |
| Tỷ lệ lấy mẫu | 65 MSPS / 80 MSPS |
| Number of Channels | 1 |
| Architecture | Pipelined |
| SNR | 61.6 dB at 8 MHz FIN |
| Power Dissipation | 38 mW at 65 MSPS / 46 mW at 80 MSPS |
| Core Supply Voltage | 1.8 V |
| I/O Supply Voltage | 3.3 V |
| Data Interface | Parallel CMOS |
| Clock Interface | LVDS / LVPECL / Sine Wave / CMOS (differential) |
| Reference | Internal |
| Hộp | 40-QFN (6x6 mm) |
| Package Code | HVQCCN |
| Operating Temperature Grade | Industrial |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân HMCAD1041-80
| Chân 1 | INA+ — Differential analog input positive |
| Chân 2 | INA- — Differential analog input negative |
| Chân 3 | VCM — Common-mode voltage output |
| Chân 4 | VREF — Reference voltage (internal bypass cap) |
| Chân 5 | AVDD1.8 — Analog 1.8 V supply |
| Chân 6 | AGND — Analog ground |
| Chân 7 | AVDD3.3 — Analog 3.3 V supply |
| Chân 8 | AGND — Analog ground |
| Chân 9 | CLK+ — Differential clock input positive |
| Chân 10 | CLK- — Differential clock input negative |
| Chân 11 | CLKGND — Clock ground |
| Chân 12 | CSB — Chip select (active low, SPI control) |
| Chân 13 | SCLK — Serial clock (SPI control interface) |
| Chân 14 | SDIO — Serial data I/O (SPI control) |
| Chân 15 | SEN — SPI enable |
| Chân 16 | RESETB — Reset (active low) |
| Chân 17 | PDWNB — Power-down (active low) |
| Chân 18 | DRVDD3.3 — Digital output driver 3.3 V supply |
| Chân 19 | DRGND — Digital output driver ground |
| Chân 20 | D0 — CMOS data output bit 0 (LSB) |
| Chân 21 | D1 — CMOS data output bit 1 |
| Chân 22 | D2 — CMOS data output bit 2 |
| Chân 23 | D3 — CMOS data output bit 3 |
| Chân 24 | D4 — CMOS data output bit 4 |
| Chân 25 | D5 — CMOS data output bit 5 |
| Chân 26 | D6 — CMOS data output bit 6 |
| Chân 27 | D7 — CMOS data output bit 7 |
| Chân 28 | D8 — CMOS data output bit 8 |
| Chân 29 | D9 — CMOS data output bit 9 (MSB) |
| Chân 30 | DR — Data ready (output clock) |
| Chân 31 | OFR — Out-of-range flag |
| Chân 32 | NC — Not connected (per datasheet) |
| Chân 33 | NC — Not connected (per datasheet) |
| Chân 34 | DVDD1.8 — Digital core 1.8 V supply |
| Chân 35 | DGND — Digital ground |
| Chân 36 | NC — Not connected (per datasheet) |
| Chân 37 | NC — Not connected (per datasheet) |
| Chân 38 | NC — Not connected (per datasheet) |
| Chân 39 | NC — Not connected (per datasheet) |
| Chân 40 | EP — Exposed thermal pad (connect to AGND) |
Ứng dụng tiêu biểu
HMCAD1041-80 phù hợp cho 6 Áp dụngs: Portable Medical Imaging / Ultrasound Front-End, Wireless Communication Baseband Digitization, Handheld Test & Measurement Equipment, Industrial Data Acquisition Modules, Radar / LIDAR Signal Processing, Portable Audio Spectrum Analyzers.
Portable Medical Imaging / Ultrasound Front-End
The HMCAD1041-80's 46 mW power dissipation at 80 MSPS and 61.6 dB SNR at 8 MHz FIN make it well-suited for portable ultrasound receive-channel digitization where thermal budget is constrained. The differential analog input accepts the output of a low-noise LNA or TGC amplifier chain, while the parallel CMOS output connects directly to an FPGA beamformer. Pin compatibility with HMCAD1051-80 (12-bit) lets designers upgrade to higher resolution for premium cart-based systems using the same PCB layout.
Được đề xuất
Wireless Communication Baseband Digitization
The HMCAD1041-80 samples IF signals up to Nyquist with 61.6 dB SNR, supporting direct-IF sampling in software-defined radio and small-cell base station receivers. The LVDS/LVPECL clock interface accepts low-jitter clocks from a PLL such as the ADF4350, minimizing aperture jitter. Ultra-low 46 mW power keeps thermal load manageable in sealed outdoor radio units. Differential analog inputs reject common-mode noise from the RF front end.
Được đề xuất
Handheld Test & Measurement Equipment
Battery-powered oscilloscope and spectrum analyzer front-ends benefit from the HMCAD1041-80's 46 mW dissipation, which directly extends runtime on a single charge. The pipelined architecture and 80 MSPS rate capture signals up to 40 MHz bandwidth with 61.6 dB dynamic range, sufficient for general-purpose embedded test gear. The 40-QFN 6x6 mm footprint fits easily inside compact handheld enclosures and shares pinout with HMCAD1051-80 for higher-resolution variants.
Được đề xuất
Industrial Data Acquisition Modules
Modular industrial DAQ cards use the HMCAD1041-80 for multi-channel digitizer boards where each channel needs a low-power 10-bit ADC sampling at 80 MSPS. The internal reference eliminates external reference drift and saves board area. Differential clock input supports daisy-chained synchronization across multiple ADC chips for coherent sampling in phased-array vibration and acoustic monitoring systems.
Được đề xuất
Radar / LIDAR Signal Processing
Short-range automotive and industrial LIDAR receivers digitize return pulses with the HMCAD1041-80 at 80 MSPS, capturing pulse shapes with sufficient time resolution for distance computation. The pipelined architecture's low latency (typically 3-4 clock cycles) is well-suited to real-time range gating. The differential analog input rejects ground bounce from high-current laser driver switching on the same PCB.
Được đề xuất
Portable Audio Spectrum Analyzers
Although optimized for general-purpose IF sampling, the HMCAD1041-80's 61.6 dB SNR and low 46 mW dissipation make it usable for handheld audio-band spectrum analyzers sampling up to 80 MSPS. The parallel CMOS output simplifies interface to low-cost microcontrollers for FFT processing, while the internal reference removes the need for a precision external reference IC. Pin compatibility with HMCAD1051-80 enables 12-bit analyzer variants on the same hardware.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho HMCAD1041-80 — 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 | HMCAD1041-40 | HMCAD1051-40 | HMCAD1051-80 | ADS8318IDRCR |
|---|---|---|---|---|---|
| Brand | Analog Devices (Hittite) | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Package | 40-QFN (6x6 mm) | 40-QFN (6x6 mm) - same | 40-QFN (6x6 mm) - same | 40-QFN (6x6 mm) - same | 40-QFN (6x6 mm) - same |
| Resolution | 10 bit | 10 bit | 12 bit | 12 bit | 12 bit |
| Max Sampling Rate | 80 MSPS | 65 MSPS | 65 MSPS | 80 MSPS | 80 MSPS |
Bảo phân biệt quan trọng
- Pin-compatible upgrade path to 12-bit resolution at same speed (vsHMCAD1041-40)
- Ultra-low 46 mW power dissipation at 80 MSPS (vsADS8318IDRCR)
- Versatile multi-standard clock receiver (vsHMCAD1041-40)
Ghi chú thiết kế
Decouple each analog (AVDD1.8, AVDD3.3), digital core (DVDD1.8), and output driver (DRVDD3.3) supply pin with a 0.1 uF ceramic capacitor placed within 2 mm of the respective pin, plus a 10 uF bulk tantalum/ceramic capacitor on each supply rail. Estimated: assuming typical 80 MSPS operation with 46 mW total, the three supplies draw ~25 mA combined; the bulk capacitors supply instantaneous switching current while the ceramics filter high-frequency noise. Split ground planes (AGND/DGND) tied at a single point under the exposed pad minimize digital-to-analog coupling that would otherwise degrade SNR.
Drive the differential clock (CLK+/CLK-) with a low-jitter source (sub-1 ps RMS aperture jitter contribution) such as a PECL buffer fed from an ADF4350 PLL. Maintain 100 ohm differential transmission-line impedance into the clock pins and place a 100 ohm differential termination resistor close to the ADC. Jitter on the clock directly translates to SNR loss per the formula SNR_jitter = 20*log10(1 / (2*pi*FIN* tjitter)); at FIN=40 MHz and tjitter=2 ps, expect ~52 dB SNR jitter limit, well above the 61.6 dB device spec.
Route the analog input traces as a 100 ohm differential pair with continuous ground reference on the layer below; avoid routing digital CMOS output (D0-D9, DR) traces across or adjacent to the analog input or clock traces to prevent digital noise coupling. Use the exposed pad (pin 40) as the primary thermal and ground path - solder it to a continuous copper pour with at least 8 thermal vias to the inner ground plane for best thermal performance.
Do not leave the PDWNB pin floating; tie it high via a 10 kohm pull-up to DVDD1.8 for normal operation, otherwise the ADC enters power-down and outputs remain tri-stated. The internal reference (VREF pin) requires a 0.1 uF bypass capacitor to AGND; omitting this cap degrades SNR by 1-3 dB. Always issue a soft reset via the SPI register after power-up before starting conversions to ensure proper internal calibration.
Thông tin tuân thủ
Operating temperature grade is Industrial per Vyrian listing. RoHS/REACH/lead-free status not explicitly stated in the verified web data and marked as unknown pending datasheet confirmation.
