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Analog Devices Inc. AD7663ACPZRL
- Part No.:
- AD7663ACPZRL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD7663ACPZRL.pdf
- Description:
- IC ADC 16BIT SAR 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,464
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Product details
Overview
AD7663ACPZRL 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 (0–10 V, 0–5 V) input ranges with no pipeline delay. It is used in high-precision data acquisition systems requiring DC accuracy and AC performance.
For engineers reviewing the AD7663ACPZRL datasheet, AD7663ACPZRL pinout, AD7663ACPZRL application, or AD7663ACPZRL equivalent, this page provides verified specifications, validated LFCSP-48 pin mapping, confirmed serial/parallel interface behavior, and two field-tested alternative ADCs for signal chain redesign or supply continuity planning.
Technical Context
The AD7663ACPZRL implements a capacitor-based charge redistribution DAC architecture with factory-calibrated error correction, enabling true 16-bit resolution with no missing codes. Its internal resistive scaler configures input ranges by switching between IND(4R), INC(4R), INB(2R), and INA(R) terminals - supporting both bipolar and unipolar modes without external components.
It features dual interface flexibility: parallel (8-/16-bit, 5 V/3 V compatible) and SPI/QSPI/MICROWIRE-compatible 2-wire serial mode with programmable clock division (DIVSCLK[1:0]), active-low SYNC framing, and configurable SDOUT edge timing via INVSCLK. Aperture jitter is 5 ps rms, and transient response is 2.75 µs after full-scale step.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full code coverage across all input ranges. |
| Throughput Rate | 250 kSPS maximum - enables real-time sampling of signals up to 800 kHz bandwidth (–3 dB). |
| INL | ±3 LSB max - ensures <0.0046% full-scale linearity error for precision measurement applications. |
| S/(N+D) | 90 dB typical at 100 kHz - supports high-fidelity digitization of dynamic signals in instrumentation and spectrum analysis. |
| Power Dissipation | 35 mW at 250 kSPS; 15 µW at 100 SPS - enables low-power operation in battery-powered or thermally constrained systems. |
| Input Ranges | Bipolar: ±10 V, ±5 V, ±2.5 V; Unipolar: 0–10 V, 0–5 V, 0–2.5 V - selectable via external resistor network per Table I. |
| Aperture Jitter | 5 ps rms - minimizes sampling uncertainty for high-frequency AC measurements and FFT-based analysis. |
Pinout & Package
AD7663ACPZRL is packaged in a 48-lead Lead Frame Chip Scale Package (LFCSP, CP-48), measuring 7 mm × 7 mm × 0.85 mm, with exposed thermal pad for enhanced thermal performance. Pin numbering follows standard ST-48/CP-48 top-view layout with Pin 1 identifier.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IND(4R), INC(4R), INB(2R), INA(R) | Analog Input Scaling Nodes | Configure input range (e.g., ±10 V, 0–5 V) via external resistor network; impedance varies from 2.56 kΩ to 5.85 kΩ depending on mode. |
| CNVST | Conversion Start Trigger | Falling-edge–initiated conversion; supports low-jitter sampling when held high until acquisition completes. |
| BUSY | Conversion Status Flag | Active-high pulse (1.25 µs min) indicates ongoing conversion; falling edge serves as data-ready strobe. |
| SER/PAR | Interface Mode Select | LOW = parallel (D[15:0]); HIGH = serial (SDOUT/SCLK/SYNC); determines function of D[2:7] pins. |
| OB/2C | Output Coding Format | HIGH = straight binary; LOW = twos complement - sets MSB polarity for signed/unisigned interpretation. |
| PD | Power-Down Control | Logic HIGH enters 7 µW standby; conversion halts after current cycle completes. |
| REF / REFGND | Reference Voltage Interface | Accepts 2.3–2.5 V external reference; REFGND must be isolated from AGND/DGND for optimal noise rejection. |
Key Features
| Feature | Design Value |
|---|---|
| No Pipeline Delay | Immediate availability of conversion result after BUSY goes low - eliminates latency in closed-loop control and multiplexed channel sequencing. |
| Single 5 V Supply Operation | AVDD = DVDD = 5 V; OVDD supports 2.7–5.25 V logic - simplifies power design and enables direct interfacing with 3 V or 5 V microcontrollers/FPGAs. |
| Hardware Factory Calibration | Guarantees dc parameters (gain, offset, INL) and ac specs (SNR, THD) over –40°C to +85°C - reduces system-level calibration burden. |
| Flexible Serial Clocking | DIVSCLK[1:0] selects internal SCLK period (25–280 ns) - allows optimization of serial read timing for host controller speed and EMI constraints. |
| Low-Power Scalability | Power scales linearly with throughput: 35 mW @ 250 kSPS → 15 µW @ 100 SPS - ideal for duty-cycled or event-triggered sensing. |
Applications
| Motor Control Feedback | Spectrum Analyzer Front-End |
|---|---|
Use Scenario: High-resolution current/voltage sensing in servo drives and inverters using shunt resistors or isolated amplifiers. IC Role / Device Role / Timing Role: ADC core capturing synchronized phase currents with <2.75 µs transient response and ±3 LSB INL for torque ripple minimization. Use Value: Enables precise field-oriented control (FOC) with 16-bit resolution and no missing codes - critical for smooth low-speed operation and harmonic suppression. | Use Scenario: Digitizing RF/IF bandpass signals in portable or benchtop spectrum analyzers before FFT processing. IC Role / Device Role / Timing Role: High-SNR front-end ADC with 90 dB S/(N+D) at 100 kHz and 800 kHz –3 dB bandwidth for baseband capture. Use Value: Delivers clean spectral data with –100 dB THD and 100 dB SFDR - improves dynamic range and spurious-free resolution in real-time analysis. |
| Medical ECG Signal Chain | Industrial Process Monitoring |
Use Scenario: Low-noise acquisition of microvolt-level biopotential signals with programmable gain instrumentation amplifiers. IC Role / Device Role / Timing Role: Precision SAR ADC accepting ±2.5 V bipolar input, referenced to stable 2.5 V source, with 5 ps aperture jitter. Use Value: Supports diagnostic-grade ECG with >14 ENOB and <0.005% linearity - meets IEC 60601-2-27 requirements for waveform fidelity. | Use Scenario: Continuous monitoring of temperature, pressure, and flow sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Robust ADC with industrial temp range (–40°C to +85°C), 35 mW dissipation, and 62 dB CMRR at 45 kHz. Use Value: Ensures long-term stability and noise immunity in electrically noisy factory environments - reduces recalibration frequency and improves uptime. |
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 |
|---|---|---|---|
| AD7664ASTRL | True differential input architecture; higher 92 dB SNR; requires matched differential driver; no unipolar mode support. | Optimized for noise-sensitive differential sensor interfaces (e.g., strain gauges), not single-ended industrial inputs. | Select when differential signaling is mandatory and common-mode rejection >80 dB is required; avoid if unipolar ranges or single-ended sources dominate. |
| AD7665ASTRL | Same pinout and interface; improved 93 dB SNR; lower 2.5 LSB INL; higher 45 mW power at 250 kSPS. | Drop-in upgrade path for higher AC performance where board space and thermal headroom allow. | Choose for next-generation designs needing better SFDR and THD without layout change - validated as pin-compatible replacement per Analog Devices documentation. |
Compared with AD7663ACPZRL, AD7664ASTRL offers superior differential noise immunity but sacrifices unipolar flexibility, while AD7665ASTRL provides measurable SNR/INL gains with identical footprint and interface - making it the preferred drop-in enhancement for legacy-compatible upgrades.
Availability
AD7663ACPZRL is available at Aetrix Electronics and suitable for motor control feedback, spectrum analyzer front-ends, medical ECG signal chains, industrial process monitoring, and precision data acquisition requiring stable component supply across extended temperature and mixed-signal interface conditions.
Supply support for AD7663ACPZRL 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 AD7663ACPZRL belongs to the PulSAR® family of precision SAR ADCs, designed specifically for applications demanding high resolution, low power, and flexible interface options in industrial, medical, and instrumentation systems.
FAQ
What is the maximum sampling rate supported by the AD7663ACPZRL?
The AD7663ACPZRL supports a maximum throughput rate of 250 kSPS, corresponding to a minimum complete conversion cycle time of 4 µs. This is achievable under specified conditions: AVDD = DVDD = 5 V, OVDD ≥ 2.7 V, and ambient temperature between –40°C and +85°C. At lower throughput rates (e.g., 100 SPS), power consumption drops to 15 µW, confirming its scalability for low-duty-cycle applications.
Does the AD7663ACPZRL require an external reference voltage?
Yes, the AD7663ACPZRL requires an external reference voltage applied to the REF pin, with a valid range of 2.3 V to 2.5 V (or up to AVDD – 1.85 V). The device does not include an internal reference. REFGND must be connected separately and kept isolated from AGND and DGND to maintain specified INL and SNR performance. Reference current draw is 50 µA at 250 kSPS.
Can the AD7663ACPZRL operate with a 3 V digital interface?
Yes, the AD7663ACPZRL supports 3 V digital logic through its OVDD supply pin, which accepts 2.7 V to 5.25 V. When OVDD = 3 V, digital outputs (e.g., BUSY, D[15:0], SDOUT) meet 3 V logic thresholds, and inputs (e.g., CS, RD, SER/PAR) accept 3 V–compatible levels. This allows seamless interfacing with 3 V FPGAs or microcontrollers without level-shifting circuitry.
Is the AD7663ACPZRL pin-compatible with other devices in the same family?
Yes, the AD7663ACPZRL is pin-to-pin compatible with the AD7660, AD7664, and AD7665 in both LQFP (ST-48) and LFCSP (CP-48) packages. This compatibility extends to power, ground, analog input, reference, and digital interface pins - enabling hardware reuse across design variants. However, functional differences (e.g., input topology, resolution, SNR) require firmware and layout review before substitution.
What are the thermal characteristics of the AD7663ACPZRL in LFCSP package?
The AD7663ACPZRL in CP-48 LFCSP has a junction-to-case thermal resistance (qJC) of 26°C/W. With its exposed thermal pad properly soldered to a PCB copper plane, it achieves efficient heat dissipation even at full 35 mW operation. Maximum junction temperature is rated at 150°C, and the device is specified for continuous operation from –40°C to +85°C ambient - validated per Analog Devices' reliability testing protocols for the CP-48 variant.
AD7663ACPZRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- PulSAR®
- Package/Case:
- 48-VFQFN Exposed Pad, CSP
- 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-LFCSP-VQ (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7663ACPZRL FAQ
1.How can I place an order for AD7663ACPZRL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7663ACPZRL 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 AD7663ACPZRL reliable?
The price and inventory of AD7663ACPZRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7663ACPZRL is usually 5 days.
3.What payment methods are accepted for AD7663ACPZRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7663ACPZRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7663ACPZRL?
AD7663ACPZRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7663ACPZRL 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 AD7663ACPZRL?
For technical support, including AD7663ACPZRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7663ACPZRL requirements.
6.How does Aetrix verify that AD7663ACPZRL is sourced from the original manufacturer or authorized distributors?
All AD7663ACPZRL 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 AD7663ACPZRL meets industry standards.
7.What is the process for return or replacement of AD7663ACPZRL?
All AD7663ACPZRL units undergo pre-shipment inspection (PSI). If there is an issue with AD7663ACPZRL, 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 AD7663ACPZRL part is unused and in its original packaging.
Return procedure for AD7663ACPZRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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