AD9680BBCZ - Dual 14-Bit 1.25 GSPS ADC | Analog Devices
MPN: AD9680BBCZ ✓ فعالAD9680BBCZ نمای کلی
An analog-to-digital converter (ADC) is a critical component in signal processing chains that converts continuous analog signals into discrete digital values for processing by digital systems. The AD9680 belongs to the class of high-speed, high-resolution ADCs used in applications such as radar, communications, and test equipment. It sits within the hierarchy of data converters, which are essential building blocks in mixed-signal systems.
Key features include dual-channel operation, 14-bit resolution, and sampling rates of 1.25 GSPS, 1 GSPS, 820 MSPS, and 500 MSPS. The device supports a wide input bandwidth of up to 2 GHz, making it suitable for direct RF sampling applications. It also includes features such as on-chip dithering, a programmable clock divider, and a serial interface for configuration.
The AD9680 utilizes a pipelined architecture with an integrated sample-and-hold circuit, enabling high-speed conversion with low power consumption. The device is designed to interface directly with FPGAs and DSPs via a JESD204B serial output, simplifying data transfer and reducing pin count. The LFCSP package provides excellent thermal performance and is suitable for space-constrained designs.
Typical applications include radar systems, software-defined radios, communications infrastructure, and test and measurement equipment. The AD9680's high sampling rate and wide bandwidth make it ideal for capturing high-frequency signals with high fidelity.
When designing with the AD9680, ensure proper power supply decoupling and a clean clock source to achieve optimal performance. The device requires careful PCB layout to minimize noise and maintain signal integrity at high frequencies.
جایگزین‌های drop-in برای AD9680BBCZ — 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 AD9680BBCZ (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Sampling Rate, Resolution, Supply Voltage, Number of Inputs.
AD9680BCPZ-1000
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←AD9680BCPZ-820
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
AD9680BCPZ-500
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←AD9656BBCZ
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←AD9652BBCZ
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←AD9680BBCZ حداکثر مقادیر مجاز و مشخصات الکتریکی
| رزولوشن | 14 bits |
| Number of Channels | 2 |
| نرخ نمونه‌برداری | 1.25 GSPS / 1 GSPS / 820 MSPS / 500 MSPS |
| Input Bandwidth | Up to 2 GHz |
| ولتاژ تغذیه | 1.2 V / 2.5 V |
| بسته‌بندی | 64-LFCSP (9x9 mm) |
| Architecture | Pipelined |
| Output Interface | JESD204B |
| On-Chip Buffer | Yes |
| Sample-and-Hold | Yes |
| وضعیت RoHS | Compliant |
پیکربندی پین AD9680BBCZ
| پین 1 | AVDD1 — Analog power supply 1.2 V |
| پین 2 | AVSS — Analog ground |
| پین 3 | VIN+ — Positive analog input |
| پین 4 | VIN- — Negative analog input |
| پین 5 | AVDD2 — Analog power supply 2.5 V |
| پین 6 | CLK+ — Positive clock input |
| پین 7 | CLK- — Negative clock input |
| پین 8 | DVDD — Digital power supply |
| پین 9 | SDO — Serial data output |
| پین 10 | SDIO — Serial data input/output |
| پین 11 | SCLK — Serial clock |
| پین 12 | CSB — Chip select bar |
کاربردهای معمول
AD9680BBCZ مناسب است برای 6 کاربردs: Radar Systems, Software-Defined Radio, Communications Infrastructure, Test and Measurement Equipment, Electronic Warfare, Medical Imaging.
Radar Systems
The AD9680BBCZ's high sampling rate of 1.25 GSPS and 14-bit resolution enable precise digitization of radar return signals. Its wide input bandwidth of up to 2 GHz allows direct sampling of RF signals, eliminating the need for multiple downconversion stages. This reduces system complexity and improves signal fidelity. The dual-channel architecture supports I/Q processing, essential for coherent radar detection. The JESD204B interface simplifies data transfer to FPGAs for real-time processing. Power efficiency is critical in radar systems, and the AD9680BBCZ is designed for low power consumption, extending operational life in portable or remote installations.
پیشنهادی
Software-Defined Radio
In software-defined radio (SDR), the AD9680BBCZ digitizes wideband RF signals directly, enabling flexible and reconfigurable communication systems. Its 1.25 GSPS sampling rate supports capturing signals up to 2 GHz, covering multiple frequency bands without hardware changes. The 14-bit resolution provides high dynamic range, essential for weak signal detection in congested spectrum. The dual-channel design allows simultaneous reception of multiple signals or diversity reception. The JESD204B output reduces the number of data lines, simplifying FPGA interfacing. Low power consumption is beneficial for battery-powered or portable SDR devices, making the AD9680BBCZ a key component in modern SDR platforms.
پیشنهادی
Communications Infrastructure
The AD9680BBCZ is ideal for communications infrastructure such as base stations and microwave links, where high-speed, high-resolution digitization is required. Its 1.25 GSPS sampling rate enables direct RF sampling, reducing the number of analog components and improving system reliability. The wide input bandwidth supports multi-carrier and wideband signals, essential for 5G and beyond. The dual-channel architecture allows for diversity reception or MIMO processing. The JESD204B interface ensures low-latency data transfer to baseband processors. The device's low power consumption helps reduce operational costs in large-scale deployments. The AD9680BBCZ meets the stringent performance requirements of modern communication systems.
پیشنهادی
Test and Measurement Equipment
In test and measurement equipment such as oscilloscopes and spectrum analyzers, the AD9680BBCZ provides high-speed, high-resolution digitization for accurate signal analysis. Its 1.25 GSPS sampling rate allows capturing fast transients and high-frequency signals with fine time resolution. The 14-bit resolution ensures precise amplitude measurement, critical for characterizing electronic devices. The wide input bandwidth of up to 2 GHz enables analysis of RF and microwave signals. The dual-channel design supports differential measurements or simultaneous acquisition of multiple signals. The JESD204B interface facilitates high-speed data streaming to processing units. The AD9680BBCZ's performance and flexibility make it a preferred choice for advanced test instruments.
پیشنهادی
Electronic Warfare
The AD9680BBCZ is used in electronic warfare systems for wideband signal interception and analysis. Its high sampling rate of 1.25 GSPS and 14-bit resolution enable detection of weak signals in dense electromagnetic environments. The wide input bandwidth of up to 2 GHz covers multiple frequency bands, allowing monitoring of a broad spectrum. The dual-channel architecture supports direction finding and signal classification. The JESD204B interface provides high-speed data transfer to digital signal processors for real-time threat analysis. Low power consumption is crucial for airborne or shipboard systems where thermal management is challenging. The AD9680BBCZ's performance and reliability make it suitable for defense applications.
پیشنهادی
Medical Imaging
In medical imaging systems such as ultrasound and MRI, the AD9680BBCZ provides high-speed, high-resolution digitization of analog signals. Its 1.25 GSPS sampling rate enables capturing fast-moving physiological signals with high temporal resolution. The 14-bit resolution ensures accurate representation of signal amplitudes, critical for diagnostic quality. The wide input bandwidth supports high-frequency ultrasound transducers. The dual-channel design allows simultaneous acquisition of multiple transducer elements, improving imaging speed. The JESD204B interface simplifies data transfer to image processing units. Low power consumption is beneficial for portable medical devices. The AD9680BBCZ meets the demanding requirements of medical imaging applications.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای AD9680BBCZ — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | AD9680BCPZ-1000 | AD9680BCPZ-820 | AD9680BCPZ-500 |
|---|---|---|---|---|
| Package | 64-LFCSP (9x9 mm) | 64-LFCSP (9x9 mm) | 64-LFCSP (9x9 mm) | 64-LFCSP (9x9 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 14 bits | 14 bits | 14 bits | 14 bits |
| Max Sampling Rate | 1.25 GSPS | 1 GSPS | 820 MSPS | 500 MSPS |
| Input Bandwidth | Up to 2 GHz | Up to 2 GHz | Up to 2 GHz | Up to 2 GHz |
| Supply Voltage | 1.2 V / 2.5 V | 1.2 V / 2.5 V | 1.2 V / 2.5 V | 1.2 V / 2.5 V |
| Output Interface | JESD204B | JESD204B | JESD204B | JESD204B |
تفاوت‌های کلیدی
- Higher maximum sampling rate (در مقابلAD9680BCPZ-500)
- Wide input bandwidth (در مقابلAD9680BCPZ-820)
- Pin-compatible with lower-speed variants (در مقابلAD9680BCPZ-1000)
یادداشت‌های طراحی
The AD9680BBCZ requires clean power supplies of 1.2 V and 2.5 V. Use low-dropout regulators (LDOs) with low output noise to power the analog and digital sections. Place decoupling capacitors (100 nF and 10 uF) close to each power pin to minimize supply impedance. A ferrite bead in series with the supply can help isolate high-frequency noise.
For optimal performance, use a multi-layer PCB with a solid ground plane. Route the analog input traces as differential pairs with controlled impedance (e.g., 100 ohms). Keep the clock traces short and shielded to avoid jitter. Follow the layout guidelines in the AD9680 datasheet to minimize parasitic capacitance and inductance.
The AD9680BBCZ dissipates significant power at high sampling rates. Ensure adequate thermal management by providing a thermal pad connection to a large copper area on the PCB. Use thermal vias to conduct heat to inner layers. The LFCSP package has an exposed pad that must be soldered to the ground plane for effective heat dissipation.
اطلاعات انطباق
RoHS compliance indicated by the 'Z' suffix in the part number. Other compliance details not specified in the provided data.
