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Analog Devices Inc. AD7663ASTZRL
- Part No.:
- AD7663ASTZRL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-LQFP
- Datasheet:
-
AD7663ASTZRL.pdf
- Description:
- IC ADC 16BIT SAR 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,356
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Product details
Overview
AD7663ASTZRL from Analog Devices is a 16-bit, 250 kSPS charge redistribution SAR analog-to-digital converter operating from a single 5 V supply. It delivers ±3 LSB INL, 90 dB SNR at 100 kHz, and supports bipolar (±10 V, ±5 V) and unipolar (0 V to 10 V) input ranges. It serves as the precision front-end ADC in high-fidelity data acquisition systems requiring no pipeline delay and simultaneous serial/parallel interfacing.
For engineers reviewing the AD7663ASTZRL datasheet, AD7663ASTZRL pinout, AD7663ASTZRL application, or AD7663ASTZRL equivalent, key selection considerations include its 48-lead LQFP package, dual-mode interface (SPI/QSPI/MICROWIRE compatible), power-down mode (7 µW max), and factory-calibrated DC/AC performance across –40°C to +85°C.
Technical Context
The AD7663ASTZRL implements a switched-capacitor SAR architecture with an internal resistor-based input scaler enabling configurable analog input ranges without external components. Its conversion cycle completes in 4 µs with zero pipeline latency, and aperture jitter is specified at 5 ps rms for high-fidelity sampling.
It integrates independent analog (AVDD/AGND), digital (DVDD/DGND), and I/O interface (OVDD/OGND) power domains, supporting mixed-voltage operation (3 V or 5 V logic). Calibration circuitry ensures guaranteed 16-bit no-missing-codes performance and maintains INL ≤ ±3 LSB over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees full dynamic range utilization in precision measurement. |
| Throughput Rate | 250 kSPS maximum - enables real-time capture of signals up to 800 kHz bandwidth (–3 dB). |
| INL | ±3 LSB max - ensures end-point linearity error ≤ 0.0046% of full scale for calibration-sensitive applications. |
| SNR | 90 dB typical at 100 kHz - supports >14.9 ENOB for high-fidelity spectral analysis. |
| Power Dissipation | 35 mW at 250 kSPS; 15 µW at 100 SPS - enables scalable power management in battery-powered or low-duty-cycle systems. |
| Analog Input Ranges | Bipolar: ±10 V, ±5 V, ±2.5 V; Unipolar: 0 V to 10 V, 0 V to 5 V, 0 V to 2.5 V - selectable via external resistor network per Table I. |
| Interface Modes | Parallel (8/16-bit) or 2-wire serial (SPI/QSPI/MICROWIRE/DSP compatible) - simplifies integration with FPGA, MCU, or DSP host controllers. |
Pinout & Package
AD7663ASTZRL is packaged in a 48-lead LQFP (ST-48), with exposed pad for thermal enhancement and defined pin 1 identifier. Pin functions are electrically validated per Analog Devices' AD7663 Rev. B datasheet (pp. 5–7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 36, AGND | Analog ground reference | Must be tied to clean analog ground plane; separates analog signal path from digital noise. |
| 2, AVDD | Analog power supply | 5 V ±5% supply for core ADC and input scaler; requires local 10 µF + 0.1 µF decoupling. |
| 17, 20, 30, DGND | Digital ground | Common return for DVDD and digital control logic; isolated from AGND except at single point. |
| 19, DVDD | Digital power supply | 5 V ±5% supply for control logic and BUSY/CS/RD timing; separate from AVDD. |
| 18, OVDD | I/O interface power | 2.7 V to 5.25 V supply for D[0:15], BUSY, CS, RD - enables direct interfacing to 3 V or 5 V hosts. |
| 35, CNVST | Conversion start trigger | Falling-edge sensitive; initiates sample-and-hold hold phase and conversion - critical for low-jitter timing. |
| 29, BUSY | Conversion status indicator | Active-high open-drain output; falling edge signals valid data ready for read - usable as hardware handshake. |
| 31, RD & 32, CS | Parallel read control | Enable parallel data bus when both asserted low; support byte-swapped 8-bit or full 16-bit transfers. |
| 8, SER/PAR | Interface mode select | Low = parallel mode; High = serial mode - reconfigures D[0:15] pins as serial port (SDOUT/SCLK/SYNC/etc.). |
| 37, REF & 38, REFGND | External reference inputs | Accept 2.3 V to (AVDD – 1.85 V); reference current drain ≤ 50 µA at 250 kSPS - supports precision external refs. |
| 39–43, INA–IND | Analog input terminals | Configurable via resistor network (Table I) for bipolar/unipolar scaling; INGND required for common-mode reference. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Conversion results available immediately after BUSY goes low - eliminates latency in closed-loop control. |
| Factory-calibrated AC/DC performance | Guaranteed SNR, THD, INL, and gain/offset specs across –40°C to +85°C - reduces system-level calibration burden. |
| Flexible voltage-domain isolation | Separate AVDD, DVDD, and OVDD supplies - enables robust noise separation between analog, digital logic, and I/O interface. |
| Low-power scalability | Power drops from 35 mW (250 kSPS) to 15 µW (100 SPS) to 7 µW (power-down) - ideal for duty-cycled sensing nodes. |
| Pin-to-pin compatibility | Direct replacement for AD7660/AD7664/AD7665 in same LQFP package - simplifies design reuse and migration. |
Applications
| Data Acquisition Systems | Motor Control Feedback |
|---|---|
|
Use Scenario: High-channel-count industrial DAQ capturing synchronized voltage/current waveforms from multiple sensors. IC Role / Device Role / Timing Role: Precision front-end ADC with zero-latency conversion and 250 kSPS throughput per channel. Use Value: Enables real-time FFT-based spectrum analysis with 90 dB SNR and <5 ps aperture jitter - critical for bearing fault detection. |
Use Scenario: Closed-loop servo drive monitoring phase currents and back-EMF in PMSM motors. IC Role / Device Role / Timing Role: Bipolar-input ADC sampling ±5 V current shunt signals with no missing codes and immediate result availability. Use Value: Supports fast current loop update rates (≤4 µs conversion) while maintaining 16-bit resolution for torque ripple minimization. |
| Communications Test Equipment | Medical Instrumentation |
|
Use Scenario: Baseband signal analyzer digitizing modulated IF outputs from RF transceivers. IC Role / Device Role / Timing Role: Wide-dynamic-range ADC with 100 dB SFDR and SPI-compatible serial interface for FPGA co-processing. Use Value: Captures low-level spurious signals adjacent to carriers without harmonic distortion masking - essential for ACLR compliance testing. |
Use Scenario: Portable ECG/EEG monitor acquiring low-amplitude bio-potential signals with high common-mode rejection. IC Role / Device Role / Timing Role: Low-noise, low-power ADC operating from single 5 V supply with 35 mW active power and 7 µW sleep. Use Value: Delivers >14.9 ENOB at 1 kSPS while extending battery life - meets IEC 60601-1 leakage and power safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7660ASTZRL | 16-bit, 100 kSPS, identical LQFP-48 pinout and interface; lower throughput, reduced SNR (86 dB), higher INL (±4 LSB) | Suitable for cost-sensitive, lower-bandwidth DAQ where 250 kSPS is not required | Select AD7660ASTZRL only if throughput ≤100 kSPS suffices and system budget constraints outweigh SNR/INL requirements. |
| AD7665ASTZ | 16-bit, 250 kSPS, same LQFP-48 footprint; improved THD (–105 dB), wider input range (±12 V), but no power-down mode | Preferred for high-dynamic-range instrumentation needing extended voltage headroom and superior harmonic suppression | Choose AD7665ASTZ when ±12 V input capability and –105 dB THD are mandatory, and continuous operation without power-down is acceptable. |
Compared with AD7660ASTZRL and AD7665ASTZ, the AD7663ASTZRL uniquely balances 250 kSPS speed, 90 dB SNR, ±3 LSB INL, and 7 µW power-down - making it optimal for portable, high-fidelity, and latency-critical measurement systems.
Availability
AD7663ASTZRL is available at Aetrix Electronics and suitable for data acquisition, motor control feedback, and medical instrumentation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for AD7663ASTZRL 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD7663ASTZRL belongs to Analog Devices' PulSAR® family of precision SAR ADCs, designed specifically for high-speed, low-power, and high-accuracy measurement applications demanding no-latency conversion and flexible digital interfacing.
FAQ
What is the maximum sampling rate supported by the AD7663ASTZRL?
The AD7663ASTZRL supports a maximum throughput rate of 250 kSPS, corresponding to a minimum conversion cycle time of 4 µs. This rate is achievable under specified conditions: AVDD = DVDD = 5 V, OVDD ≥ 2.7 V, and ambient temperature between –40°C and +85°C. At this rate, the AD7663ASTZRL dissipates 35 mW typical power and maintains 90 dB SNR at 100 kHz input frequency.
Does the AD7663ASTZRL require an external reference voltage?
Yes, the AD7663ASTZRL requires an external reference voltage applied to the REF pin (Pin 37) with REFGND (Pin 38) as its return. The reference voltage range is 2.3 V to (AVDD – 1.85 V), typically 2.5 V. The device draws ≤50 µA from the reference source at 250 kSPS, and reference stability directly impacts gain accuracy and SNR performance of the AD7663ASTZRL.
Can the AD7663ASTZRL operate with a 3 V digital interface while using a 5 V analog supply?
Yes, the AD7663ASTZRL supports mixed-voltage operation: AVDD and DVDD are supplied at 5 V for analog and core digital logic, while OVDD (Pin 18) can be set to 3 V to interface directly with 3 V microcontrollers or FPGAs. All digital I/O pins (D[0:15], BUSY, CS, RD, etc.) are referenced to OVDD, ensuring safe level translation without external buffers for the AD7663ASTZRL.
What is the purpose of the BYTESWAP pin on the AD7663ASTZRL?
The BYTESWAP pin (Pin 4) configures byte ordering in 8-bit parallel mode. When LOW, D[7:0] carries the LSB byte and D[15:8] carries the MSB byte; when HIGH, D[7:0] carries the MSB byte and D[15:8] carries the LSB byte. This allows seamless alignment with host processor endianness requirements without software bit manipulation for the AD7663ASTZRL.
How does the power-down mode function on the AD7663ASTZRL?
The AD7663ASTZRL enters power-down mode when the PD pin (Pin 34) is driven HIGH. After completion of the current conversion, analog and digital circuitry are disabled, reducing total supply current to ≤7 µW. Wake-up is initiated by pulling PD LOW; acquisition begins automatically upon next CNVST edge. This feature enables ultra-low-power operation in battery-powered applications using the AD7663ASTZRL.
AD7663ASTZRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- PulSAR®
- Package/Case:
- 48-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI, Parallel, DSP
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- True Bipolar
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-LQFP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7663ASTZRL FAQ
1.How can I place an order for AD7663ASTZRL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7663ASTZRL 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 AD7663ASTZRL reliable?
The price and inventory of AD7663ASTZRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7663ASTZRL is usually 5 days.
3.What payment methods are accepted for AD7663ASTZRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7663ASTZRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7663ASTZRL?
AD7663ASTZRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7663ASTZRL 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 AD7663ASTZRL?
For technical support, including AD7663ASTZRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7663ASTZRL requirements.
6.How does Aetrix verify that AD7663ASTZRL is sourced from the original manufacturer or authorized distributors?
All AD7663ASTZRL 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 AD7663ASTZRL meets industry standards.
7.What is the process for return or replacement of AD7663ASTZRL?
All AD7663ASTZRL units undergo pre-shipment inspection (PSI). If there is an issue with AD7663ASTZRL, 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 AD7663ASTZRL part is unused and in its original packaging.
Return procedure for AD7663ASTZRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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