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Analog Devices Inc. AD7763BSVZ
- Part No.:
- AD7763BSVZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-TQFP Exposed Pad
- Datasheet:
-
AD7763BSVZ.pdf
- Description:
- IC ADC 24BIT SIGMA-DELTA 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:143
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Product details
Overview
AD7763BSVZ from Analog Devices is a 24-bit, 625 kSPS sigma-delta analog-to-digital converter with on-chip differential amplifier buffering, programmable FIR filtering, and dual serial interface (SPI/I2S). It delivers 107 dB SNR at full output rate, supports ±3.2 V differential input range with 4.096 V reference, and operates across −40°C to +85°C for high-fidelity data acquisition in vibration monitoring systems.
For engineers reviewing the AD7763BSVZ datasheet, AD7763BSVZ pinout, AD7763BSVZ application, or AD7763BSVZ equivalent, this page provides verified technical context, real-world timing behavior, confirmed decimation-dependent group delay values, validated power consumption in normal/low-power modes, and precise pin-level circuit roles - all extracted from Rev. B datasheet and functional block diagram.
Technical Context
The AD7763BSVZ uses a multibit sigma-delta modulator sampling at up to 40 MSPS, followed by programmable decimation (32×–256×) and a low-pass digital FIR filter with default or user-defined coefficients. Its reconstruction engine supports synchronized multi-device operation via SYNC and configurable frame alignment using FSO/SDL.
It integrates a fully differential modulator input stage, on-chip differential amplifier for signal buffering and level shifting, digital offset/gain correction registers, and overrange alert functionality. The I2S mode enables direct connection to DSPs or audio processors without external protocol translation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24-bit - guarantees monotonicity and full-scale code separation without missing codes. |
| Max Output Data Rate | 625 kSPS - achieved at 32× decimation with 40 MHz MCLK; enables real-time capture of 100 kHz signals. |
| SNR @ 625 kSPS | 107 dB - measured at −0.5 dBFS input; defines usable dynamic range for high-precision sensor digitization. |
| Differential Nonlinearity | Guaranteed monotonic to 24 bits - ensures no code transitions are skipped under any operating condition. |
| Group Delay @ 32× | 47 µs - fixed latency between analog input and valid serial output data; critical for closed-loop timing budgets. |
| Total Power Dissipation | 955.5 mW max in normal mode - distributed across AVDD1/AVDD2/AVDD3/AVDD4/DVDD/VDRIVE rails per supply domain. |
| Reference Input Range | Up to +4.096 V - sets ±3.2 V differential input span; requires AVDD4 ≥ 3.15 V for proper buffer biasing. |
Pinout & Package
The AD7763BSVZ is housed in a 64-lead TQFP_EP (exposed paddle) package, specified for industrial temperature range (−40°C to +85°C). Thermal performance relies on connecting the exposed pad to AGNDx using six to eight vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+, VIN− | Differential modulator inputs | Accept ±3.2 V p-p signal when VREF = 4.096 V; 55 pF input capacitance requires careful front-end drive. |
| VINA+, VINA−, VOUTA+, VOUTA− | Differential amplifier I/O | Enable buffered signal conditioning; internal gain/level shift reduces external op-amp count. |
| MCLK, MCLKGND | Master clock input and sensing | 40 MHz max clock with low jitter required; MCLKGND minimizes ground bounce coupling into clock path. |
| SCO, SDO, SDI, FSI, FSO, SDL | SPI/I2S serial interface signals | Configurable for SPI (SCP/CDIV/SCR) or I2S (I2S pin high); FSO frames 32-bit words; SDL pulses every 16 bits. |
| SYNC, RESET | System synchronization and reset control | SYNC resets internal filter phase for multi-ADC coherence; RESET asserts asynchronous digital logic reset. |
| DRDY | Data ready indicator | Active-low pulse (½ ICLK wide) signals availability of new conversion result; used for interrupt-driven read timing. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip differential amplifier | Eliminates need for external instrumentation amplifier in bridge or low-level sensor interfaces. |
| User-programmable FIR filter | Allows custom anti-aliasing or shaping response without FPGA or external DSP resources. |
| Synchronization via SYNC pin | Enables deterministic phase alignment across multiple AD7763BSVZ devices in distributed DAQ systems. |
| I2S interface mode | Direct compatibility with audio-class processors and SoCs, reducing protocol translation overhead. |
| Digital offset/gain correction registers | Permits system-level calibration without hardware modification or trimming components. |
Applications
| Vibration Analysis System | High-Speed Instrumentation |
|---|---|
Use Scenario: Capturing broadband mechanical resonance signatures from accelerometers in rotating equipment. IC Role / Device Role / Timing Role: Primary ADC digitizing ±3.2 V differential sensor outputs at 625 kSPS with 107 dB SNR and <47 µs group delay. Use Value: Enables detection of sub-millivolt harmonics buried in noise floor without external amplification or filtering. | Use Scenario: Real-time spectral analysis of transient electrical waveforms in power quality monitors. IC Role / Device Role / Timing Role: High-resolution digitizer with programmable FIR filter tailoring frequency response to IEC 61000-4-30 Class A requirements. Use Value: Delivers certified 24-bit linearity and 112 dB SNR at 78 kHz ODR for harmonic distortion measurement accuracy. |
| Multi-Channel Data Acquisition | Condition Monitoring Node |
Use Scenario: Synchronized sampling across 8+ channels in structural health monitoring arrays. IC Role / Device Role / Timing Role: One of multiple AD7763BSVZ units sharing SPI bus with unique ADR2:0 addresses and coordinated SYNC pulses. Use Value: Achieves sub-microsecond inter-channel skew via hardware SYNC, eliminating software timestamp interpolation. | Use Scenario: Edge-deployed predictive maintenance unit analyzing motor current and bearing vibration simultaneously. IC Role / Device Role / Timing Role: Dual-role ADC handling both high-bandwidth vibration (625 kSPS) and precision current sensing (78 kHz ODR) via decimation reconfiguration. Use Value: Reduces BOM count by consolidating two measurement domains into single IC with shared digital infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution, high-speed sigma-delta ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7762BSVZ | Same 24-bit/625 kSPS spec but uses parallel interface; lacks on-chip differential amplifier and I2S mode. | Requires wider PCB trace routing and external signal buffering; unsuitable for space-constrained or I2S-native designs. | Select AD7762BSVZ only when legacy parallel bus architecture exists and board area permits larger interface footprint. |
| ADS127L11IPBS | 24-bit, 512 kSPS, 111 dB SNR; integrated PGA, SPI-only, lower power (320 mW), no I2S or on-chip diff amp. | Better power efficiency and higher SNR at lower rates; lacks multi-device sync and flexible FIR programming. | Choose ADS127L11IPBS for battery-powered or thermally constrained nodes where 512 kSPS suffices and sync is not required. |
Compared with AD7762BSVZ and ADS127L11IPBS, the AD7763BSVZ uniquely combines I2S support, hardware SYNC for multi-ADC coherence, and integrated differential buffering - making it optimal for compact, synchronized, high-fidelity acquisition where SPI/I2S flexibility and minimal analog front-end complexity are design priorities.
Availability
AD7763BSVZ is available at Aetrix Electronics and suitable for vibration analysis systems, high-speed instrumentation, multi-channel data acquisition, and condition monitoring nodes requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for AD7763BSVZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD7763BSVZ belongs to Analog Devices' precision sigma-delta ADC product line, engineered specifically for high-speed, high-dynamic-range data acquisition where resolution, timing determinism, and integration density are critical.
FAQ
What is the maximum output data rate supported by the AD7763BSVZ?
The AD7763BSVZ supports a maximum fully filtered output word rate of 625 kSPS, achieved at 32× decimation with a 40 MHz master clock. This rate is confirmed in the Rev. B datasheet under Dynamic Performance specifications and corresponds to a 100 kHz input tone bandwidth with 107 dB SNR. The AD7763BSVZ maintains guaranteed monotonicity and 24-bit resolution at this rate.
Does the AD7763BSVZ include an on-chip differential amplifier?
Yes, the AD7763BSVZ integrates a dedicated differential amplifier with inputs VINA+/VINA− and outputs VOUTA+/VOUTA−. As documented in the Functional Block Diagram and Pin Function Descriptions, this amplifier provides signal buffering and level shifting, reducing external component count in sensor interface designs. It is powered by AVDD3 and referenced to AGND3.
Can the AD7763BSVZ operate in I2S mode?
Yes, the AD7763BSVZ supports I2S interface mode when the I2S pin (Pin 61) is driven high. In this configuration, SDO becomes SD, SCO becomes SCK, and FSO becomes WS per the I2S specification. The Rev. B datasheet confirms this behavior in the Pin Function Descriptions and Reading Data Using the I2S Interface section. Note that writes to the AD7763BSVZ must still use SPI with I2S = low.
What is the group delay of the AD7763BSVZ at 625 kSPS output rate?
At 625 kSPS (32× decimation with 40 MHz MCLK), the AD7763BSVZ exhibits a group delay of 47 µs, as specified in the Digital Filter Response table of the Rev. B datasheet. This fixed latency applies to the full signal path from analog input to valid serial output data and is critical for time-sensitive control loop implementations.
How is synchronization implemented across multiple AD7763BSVZ devices?
Synchronization across multiple AD7763BSVZ devices is implemented using the SYNC pin (Pin 36). A falling edge on SYNC resets the internal filter phase, ensuring coherent sampling instants. The Rev. B datasheet confirms this in the Synchronization section and Figure 4 (SPI timing with multiple devices), enabling sub-microsecond inter-device skew without software intervention.
AD7763BSVZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-TQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 24
- Sampling Rate (Per Second):
- 625k
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- I2S, SPI
- Configuration:
- ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.5V, 3.15V ~ 5.25V
- Voltage - Supply, Digital:
- 2.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-TQFP-EP (10x10)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7763BSVZ FAQ
1.How can I place an order for AD7763BSVZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7763BSVZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD7763BSVZ reliable?
The price and inventory of AD7763BSVZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7763BSVZ is usually 5 days.
3.What payment methods are accepted for AD7763BSVZ?
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4.How is shipping managed for AD7763BSVZ?
AD7763BSVZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7763BSVZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD7763BSVZ?
For technical support, including AD7763BSVZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7763BSVZ requirements.
6.How does Aetrix verify that AD7763BSVZ is sourced from the original manufacturer or authorized distributors?
All AD7763BSVZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD7763BSVZ meets industry standards.
7.What is the process for return or replacement of AD7763BSVZ?
All AD7763BSVZ units undergo pre-shipment inspection (PSI). If there is an issue with AD7763BSVZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD7763BSVZ part is unused and in its original packaging.
Return procedure for AD7763BSVZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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