AD7763BSVZ-REEL - 24-Bit 625 kSPS Sigma-Delta ADC | Analog Devices
MPN: AD7763BSVZ-REEL ✓ Hoạt độngAD7763BSVZ-REEL Tóm tắt
An ADC (analog-to-digital converter) is a semiconductor device that samples a continuous analog voltage and converts it into a discrete digital code representing the input magnitude. Sigma-delta (sigma-delta) converters use oversampling and noise-shaping to push quantization noise away from the signal band, then apply a low-pass digital filter to produce very high effective resolution at moderate bandwidths. Within the broader taxonomy, ADCs sit under data-converter ICs -> mixed-signal ICs -> signal chain ICs -> integrated circuits (ICs). The AD7763 belongs to the wideband sigma-delta family optimized for high-speed, high-resolution industrial and instrumentation acquisition.
Key features include 24-bit resolution, fully filtered output word rate up to 625 kHz, integrated input and reference buffers, and a flexible serial interface compatible with DSPs, FPGAs, and microcontrollers. The on-chip buffers absorb the kickback currents from the sigma-delta modulator, allowing the front-end RC network to be selected without loading the input source. Differential analog inputs support a wide common-mode range, and an external reference voltage sets the full-scale input span for system-level calibration flexibility.
Typical applications include high-speed data acquisition modules, vibration and acoustic analysis, power-line monitoring, industrial process control, medical instrumentation front-ends, and audio test equipment. The 109 dB dynamic range at 625 kSPS makes the AD7763 suitable for systems that previously required separate analog filter and 16-bit SAR stages. The exposed-pad TQFP-64 package provides low thermal resistance for sustained operation at full throughput without external heatsinking in properly designed PCBs.
Bộ thay thế dễ dàng lắp đặt cho AD7763BSVZ-REEL — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
AD7763BSVZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AD7760BSVZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AD7763BSVZ-REEL Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 24 bits |
| Number of Channels | 1 input |
| Architecture | Sigma-Delta |
| Maximum Output Data Rate | 625 kSPS |
| Dynamic Range at 78 kHz ODR | 120 dB |
| Dynamic Range at 625 kHz ODR | 109 dB |
| SNR at 78 kHz ODR | 118 dB |
| SNR at 625 kHz ODR | 106 dB |
| Input Buffers | On-chip |
| Reference Buffers | On-chip |
| Giao diện | Serial |
| Hộp | 64-pin TQFP-EP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C |
| Screening Level | Industrial |
| Packaging | Tape and Reel (13-inch reel) |
| Trạng thái RoHS | Compliant |
Hướng dẫn cấu hình chân AD7763BSVZ-REEL 64-pin tqfp-ep (10x10 mm)
Cấu hình chân cho AD7763BSVZ-REEL (64-pin tqfp-ep (10x10 mm) gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho AD7763BSVZ-REEL.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
AD7763BSVZ-REEL phù hợp cho 7 Áp dụngs: High-Speed Data Acquisition, Vibration and Acoustic Analysis, Power-Line Monitoring, Industrial Process Control, Medical Instrumentation Front-Ends, Audio Test and Measurement, Servo and Motor Drive Feedback.
High-Speed Data Acquisition
The AD7763BSVZ-REEL's 625 kSPS maximum output data rate and 24-bit resolution enable single-channel acquisition at throughputs that previously required a separate analog filter stage and 16-bit SAR. On-chip input and reference buffers per the Analog Devices datasheet absorb modulator kickback, so the front-end RC network can be sized for antialiasing without loading the source. With 109 dB dynamic range at full rate, the converter captures harmonic content well below the noise floor of typical 16-bit systems, while the TQFP-EP exposed pad keeps junction temperature rise within industrial-grade limits on a 4-layer PCB.
Được đề xuất
Vibration and Acoustic Analysis
Piezoelectric accelerometers and microphones demand wide dynamic range to capture both low-amplitude structural resonances and high-amplitude impacts. The AD7763BSVZ-REEL's 109 dB dynamic range at 625 kSPS per the Analog Devices product page gives instrumentation systems more than 17 effective bits at full bandwidth. The on-chip input buffer preserves the high source impedance of charge-mode sensors, eliminating the need for an external driver op-amp and reducing total system noise. Serial-interface DRDY signaling simplifies synchronization with DSPs running real-time FFT analysis for modal and acoustic emission testing.
Được đề xuất
Power-Line Monitoring
Power-quality analyzers must digitize AC waveforms across harmonics up to the 50th-63rd order while maintaining more than 100 dB dynamic range to resolve low-magnitude distortion sidebands. The AD7763BSVZ-REEL's sigma-delta architecture with 120 dB dynamic range at 78 kHz output data rate supports IEC 61000-4-30 class-A compliance when paired with appropriate CT/PT transducers. The serial interface allows direct connection to industrial MCUs without glue logic, and the 64-pin TQFP-EP footprint gives designers a stable mechanical platform for substation hardware subject to vibration and thermal cycling.
Được đề xuất
Industrial Process Control
Process-control front-ends digitize transducer outputs from thermocouples, RTDs, strain gauges, and pressure sensors across factory floors with -40C to +85C ambient conditions. The AD7763BSVZ-REEL's industrial temperature rating and on-chip input buffers per the Analog Devices datasheet simplify signal conditioning by eliminating external driver stages that drift with temperature. The 24-bit resolution resolves sub-millivolt transducer outputs, while the sigma-delta architecture rejects 50 Hz/60 Hz mains interference through its digital filter. The TQFP-EP package's exposed pad provides mechanical strain relief for industrial enclosure assemblies.
Được đề xuất
Medical Instrumentation Front-Ends
Patient-monitoring and diagnostic instruments require 24-bit dynamic range to capture low-amplitude bioelectric signals (EEG, EMG, ECG) alongside higher-amplitude artifacts. The AD7763BSVZ-REEL's 109 dB dynamic range at 625 kSPS per the Analog Devices product page supports high-channel-count acquisition cards by offering enough bandwidth for multi-channel multiplexing strategies. The on-chip input buffer preserves the high source impedance of dry-electrode bioelectric sensors without external FET-input op-amps. The exposed-pad TQFP-64 package allows compact multi-channel boards with predictable thermal performance.
Được đề xuất
Audio Test and Measurement
Audio analyzers require more than 100 dB dynamic range to characterize high-resolution DACs and Class-D amplifier outputs without compression. The AD7763BSVZ-REEL's 120 dB dynamic range at 78 kHz output data rate per the Analog Devices datasheet comfortably exceeds 24-bit audio performance metrics with margin for harmonic distortion analysis. The serial interface simplifies synchronization with audio DSPs, while the TQFP-EP exposed pad keeps thermal noise low under sustained benchmark testing. The 64-pin footprint supports 4-layer audio-analyzer reference designs from major test-equipment vendors.
Được đề xuất
Servo and Motor Drive Feedback
Precision servo drives digitize encoder and resolver feedback to close current loops at sub-millisecond intervals with high noise immunity. The AD7763BSVZ-REEL's 625 kSPS throughput and 24-bit resolution per the Analog Devices product page suits resolver-to-digital conversion when paired with excitation-driver circuitry. The sigma-delta architecture rejects PWM common-mode transients from the drive stage through its digital filter, while the on-chip input buffer presents high impedance to the resolver secondary. The TQFP-EP package handles the thermal rise typical in enclosed servo enclosures with adequate PCB copper area.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho AD7763BSVZ-REEL — 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 | AD7763BSVZ | AD7760BSVZ |
|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Package | TQFP-64 (10x10) EP | TQFP-64 (10x10) EP - same | TQFP-64 (10x10) EP - same |
| Resolution | 24 bits | 24 bits | 24 bits |
| Architecture | Sigma-Delta | Sigma-Delta | Sigma-Delta |
| Max Output Data Rate | 625 kSPS | 625 kSPS | 2.5 MSPS |
| Input Buffers | On-chip | On-chip | On-chip |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging | Tape and Reel (13-inch) | Tray | Tray |
Bảo phân biệt quan trọng
- Higher 625 kSPS throughput with on-chip buffers at industrial temperature grade (vsAD7760BSVZ)
- Reel-packaging variant for high-volume automated assembly (vsAD7763BSVZ)
- On-chip input and reference buffers eliminate external driver op-amps (vsDiscrete ADC front-end designs)
Ghi chú thiết kế
The TQFP-EP package's exposed thermal pad MUST be soldered to a top-layer ground copper pour to achieve rated thermal performance per the Analog Devices package drawing. Use a via array (typically 4x4 to 5x5 vias on 1.0 mm pitch) under the EP to conduct heat into inner ground planes. Failing to solder the EP will reduce the effective thermal resistance from approximately 25 C/W to over 60 C/W and may cause thermal shutdown under sustained 625 kSPS operation.
Decouple AVDD and DVDD separately; place 10 uF bulk tantalum plus 0.1 uF ceramic capacitors within 5 mm of each supply pin per the AD7763 datasheet reference schematic. Use a ferrite bead or LC filter between the analog and digital supplies to prevent digital switching noise from coupling into the modulator. The on-chip reference buffer eliminates the need for an external reference op-amp but still requires a low-noise external reference such as the ADR445 for full dynamic-range performance.
Route the differential analog inputs (AIN+, AIN-) as matched-length, ground-referenced traces with 50 ohm characteristic impedance; keep digital signals (SCLK, DRDY, DOUT) physically separated to avoid digital-to-analog coupling. The sigma-delta modulator's high-frequency clock edges appear on the analog inputs as common-mode transients - the on-chip input buffer absorbs these kickback currents, but the front-end RC anti-aliasing filter must still be sized per the datasheet's recommended component values.
When using the REEL packaging variant on a high-volume pick-and-place line, confirm the 13-inch reel leader/trailer dimensions match your equipment; ADI REEL parts ship on 13-inch reels per the packaging suffix convention. Verify SCLK and DRDY timing against the connected DSP/FPGA - the AD7763's serial interface supports both SPI-compatible and framed modes, but mode selection requires correct GPIO configuration at power-up before the first conversion command.
Thông tin tuân thủ
RoHS compliant per Analog Devices product page. Industrial screening level -40C to +85C; not AEC-Q100 automotive qualified. REACH compliance status confirmed via Analog Devices environmental documentation.
