My Inquiry
My Account
Analog Devices Inc. AD7663ASTZ
- Part No.:
- AD7663ASTZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-LQFP
- Datasheet:
-
AD7663ASTZ.pdf
- Description:
- IC ADC 16BIT SAR 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,544
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD7663ASTZ 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, ±2.5 V) and unipolar (0–10 V, 0–5 V, 0–2.5 V) input ranges. It serves as the precision front-end ADC in high-fidelity data acquisition systems requiring no pipeline delay and simultaneous channel sampling.
For engineers reviewing the AD7663ASTZ datasheet, AD7663ASTZ pinout, AD7663ASTZ application, or AD7663ASTZ equivalent, key selection criteria include its 48-lead LQFP package, dual serial/parallel interface (SPI/QSPI/MICROWIRE/DSP-compatible), 2.75 µs transient response, and factory-calibrated DC/AC performance across –40°C to +85°C.
Technical Context
The AD7663ASTZ implements a capacitor-based charge redistribution SAR architecture with integrated resistor-scaler network enabling flexible analog input configuration - including ±4REF, ±2REF, and 0–4REF modes - all referenced to an external 2.3–2.5 V (up to AVDD–1.85 V) voltage source. Its internal conversion clock eliminates external timing dependencies.
It features dual digital interface domains: parallel (8-/16-bit, configurable byte order) and 2-wire serial (master/slave, programmable SCLK division), both compatible with 3 V or 5 V logic levels via separate OVDD supply. Power-down mode reduces current to ≤7 µW while preserving state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full code coverage for precision measurement applications. |
| Throughput Rate | 250 kSPS maximum - enables real-time capture of signals up to 800 kHz bandwidth (–3 dB) without aliasing in undersampled systems. |
| INL Error | ±3 LSB max - ensures <0.0046% full-scale linearity error, critical for calibration-critical instrumentation and closed-loop control. |
| SNR @ 100 kHz | 90 dB typical - corresponds to ~14.9 ENOB, supporting high-fidelity spectrum analysis and dynamic signal capture. |
| Power Dissipation | 35 mW at 250 kSPS; 15 µW at 100 SPS - enables low-power portable or battery-operated DAQ systems with scalable energy use. |
| Analog 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, not software-configurable. |
| Aperture Jitter | 5 ps rms - minimizes sampling uncertainty, essential for high-frequency AC accuracy and SFDR >100 dB. |
Pinout & Package
AD7663ASTZ is packaged in a 48-lead LQFP (ST-48) with exposed pad thermal design. Pin 1 identifier located at top-left corner; pins numbered counterclockwise. Analog and digital grounds are segregated (AGND, DGND, OGND) and must be independently routed to minimize noise coupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 36, AGND | Analog Ground | Reference return for AVDD, REF, and analog inputs; must connect to low-impedance analog ground plane. |
| 2, AVDD | Analog Power Supply | 5 V ±5% supply for analog core; decoupling required within 1 cm of pin. |
| 17, 30, DGND | Digital Ground | Return path for DVDD and digital logic; isolated from AGND except at single-point star ground. |
| 18, OVDD | I/O Interface Power | Supplies parallel/serial output drivers; supports 2.7–5.25 V, enabling direct interfacing to 3 V or 5 V controllers. |
| 35, CNVST | Conversion Start Trigger | Falling-edge initiated sample-and-hold control; jitter-sensitive path requiring clean, fast edge (<5 ns rise/fall). |
| 29, BUSY | Conversion Status Flag | Active-HIGH open-drain output indicating conversion in progress; falling edge signals valid data ready. |
| 31, RD & 32, CS | Parallel Read Control | Enable read access to D[15:0] bus when both asserted LOW; supports burst or individual word reads. |
| 8, SER/PAR | Interface Mode Select | LOW = parallel mode (D[15:0] active); HIGH = serial mode (D[8]/D[9]/D[10]/D[11] repurposed as SDOUT/SCLK/SYNC/RDERROR). |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Immediate data availability after BUSY goes LOW - enables deterministic timing for real-time control loops and multiplexed multi-channel sampling. |
| Factory-calibrated ac/dc performance | Guaranteed SNR, THD, INL, and gain/offset specs over temperature - eliminates system-level calibration overhead in production test. |
| Configurable analog input scaling | Hardware-selectable ranges via external resistor connections (IND/INC/INB/INA) - avoids software-dependent range switching latency or nonlinearity drift. |
| Low-power adaptive operation | Current scales linearly with throughput (5 mA AVDD @ 250 kSPS → ~100 nA @ 1 SPS) - supports duty-cycled sensing without firmware intervention. |
| 3 V/5 V dual-voltage interface | Separate OVDD rail allows seamless integration with mixed-signal SoCs or FPGAs using either logic family - no level-shifter required. |
Applications
| Motor Control Feedback | Spectrum Analyzer Front-End |
|---|---|
|
Use Scenario: High-resolution current/voltage sensing in servo drives and inverters with PWM switching noise. IC Role / Device Role / Timing Role: Precision analog front-end ADC capturing phase currents at 250 kSPS with 2.75 µs transient response to track rapid transients. Use Value: Enables accurate field-oriented control (FOC) by resolving sub-millivolt ripple on 500 V bus measurements with <±3 LSB INL. |
Use Scenario: Digitizing RF IF signals in benchtop or portable spectrum analyzers requiring wide dynamic range. IC Role / Device Role / Timing Role: Baseband digitizer with 90 dB SNR and 100 dB SFDR at 100 kHz - preserves small-signal resolution amid large interferers. Use Value: Supports >14-bit effective resolution for detecting –90 dBc spurs without averaging, reducing post-processing latency. |
| Medical ECG Signal Acquisition | Industrial Process Monitoring |
|
Use Scenario: Low-noise biopotential measurement in portable ECG devices with battery-powered constraints. IC Role / Device Role / Timing Role: Single-supply 16-bit ADC converting differential lead signals at 1–2 kSPS with 15 µW power-down between samples. Use Value: Achieves clinical-grade baseline stability (±25 LSB zero error) and 5 ps aperture jitter for artifact-free R-wave detection. |
Use Scenario: Multi-sensor monitoring of pressure, temperature, and flow in hazardous industrial environments. IC Role / Device Role / Timing Role: Isolated analog input conditioner feeding into AD7663ASTZ's ±10 V bipolar range with external 2.5 V reference. Use Value: Maintains traceable metrology-grade linearity (±3 LSB INL) across –40°C to +85°C without recalibration during seasonal ambient shifts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7665ASTZ | Same 48-lead LQFP package and pinout; higher 570 kSPS throughput but increased 55 mW power at full rate; identical INL (±3 LSB) and SNR (90 dB). | Preferred where oversampling or faster loop closure is needed; less suitable for ultra-low-power intermittent sampling due to higher idle current. | Select AD7665ASTZ when system requires >250 kSPS without sacrificing resolution or linearity. |
| ADS8860IDRCT | 16-bit, 1 MSPS SAR ADC in 3x3 mm WSON-10; single 2.5–5.5 V supply; no internal scaler - fixed ±VREF input; 92 dB SNR, ±1.5 LSB INL. | Targeted at space-constrained, lower-cost designs with simpler analog front-ends; lacks hardware-configurable input ranges and dual-interface flexibility. | Choose ADS8860IDRCT for compact, high-SNR applications where input scaling is handled externally and serial-only interface suffices. |
Compared with AD7663ASTZ, AD7665ASTZ offers higher speed at the cost of power efficiency, while ADS8860IDRCT trades configurability and package compatibility for size and raw SNR - making AD7663ASTZ optimal for balanced performance, flexibility, and legacy system upgrades.
Availability
AD7663ASTZ is available at Aetrix Electronics and suitable for data acquisition, motor control, and medical instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for AD7663ASTZ 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 AD7663ASTZ belongs to Analog Devices' PulSAR® family of precision SAR ADCs, designed specifically for applications demanding high resolution, low latency, and robust dc/ac accuracy in industrial, instrumentation, and medical systems.
FAQ
What is the maximum sampling rate supported by the AD7663ASTZ?
The AD7663ASTZ supports a maximum throughput rate of 250 kSPS, corresponding to a minimum conversion cycle time of 4 µs. This is achievable across all specified input ranges and temperature conditions (–40°C to +85°C) with AVDD = DVDD = 5 V and OVDD = 2.7–5.25 V. The device maintains full 16-bit accuracy and no missing codes at this rate.
Does the AD7663ASTZ require an external reference voltage?
Yes, the AD7663ASTZ requires an external precision reference voltage applied to the REF pin. The specified range is 2.3 V to 2.5 V (or up to AVDD – 1.85 V), with typical operation at 2.5 V. Reference stability directly impacts gain error and SNR; Analog Devices recommends low-noise references such as the ADR431 or ADR4525 for optimal performance.
Can the AD7663ASTZ operate with a 3 V digital interface while using a 5 V analog supply?
Yes, the AD7663ASTZ supports independent digital interface voltage via the OVDD pin, which accepts 2.7 V to 5.25 V. When OVDD = 3 V, the parallel and serial outputs (D[15:0], SDOUT, SCLK, SYNC) are fully compatible with 3 V logic families - enabling direct connection to 3 V FPGAs or microcontrollers without level shifters.
What are the power consumption characteristics of the AD7663ASTZ in power-down mode?
In power-down mode (PD = HIGH), the AD7663ASTZ draws ≤7 µW total - comprising ≤7 µA from AVDD/DVDD at 5 V and negligible current from OVDD. This ultra-low standby power enables energy harvesting or battery-powered applications with extended sleep intervals between conversions, while retaining full functionality upon wake-up.
Is the AD7663ASTZ pin-compatible with other devices in the same family?
Yes, the AD7663ASTZ is pin-to-pin compatible with the AD7660ASTZ and AD7664ASTZ in the same 48-lead LQFP (ST-48) package. This allows drop-in replacement for design reuse, though users must verify interface mode settings (SER/PAR, OB/2C), reference configuration, and timing margins - especially for AD7664's differential input architecture.
AD7663ASTZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- PulSAR®
- Package/Case:
- 48-LQFP
- Packaging:
- Tray
- 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:
- -
AD7663ASTZ FAQ
1.How can I place an order for AD7663ASTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7663ASTZ 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 AD7663ASTZ reliable?
The price and inventory of AD7663ASTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7663ASTZ is usually 5 days.
3.What payment methods are accepted for AD7663ASTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7663ASTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7663ASTZ?
AD7663ASTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7663ASTZ 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 AD7663ASTZ?
For technical support, including AD7663ASTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7663ASTZ requirements.
6.How does Aetrix verify that AD7663ASTZ is sourced from the original manufacturer or authorized distributors?
All AD7663ASTZ 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 AD7663ASTZ meets industry standards.
7.What is the process for return or replacement of AD7663ASTZ?
All AD7663ASTZ units undergo pre-shipment inspection (PSI). If there is an issue with AD7663ASTZ, 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 AD7663ASTZ part is unused and in its original packaging.
Return procedure for AD7663ASTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD7663ASTZ Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
