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Analog Devices Inc. AD7476AYKSZ-500RL7
- Part No.:
- AD7476AYKSZ-500RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
AD7476AYKSZ-500RL7.pdf
- Description:
- IC ADC 12BIT SAR SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,222
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Product details
Overview
AD7476AYKSZ-500RL7 from Analog Devices is a 12-bit, single-channel, successive-approximation analog-to-digital converter (ADC) in a 6-lead SC70 package. It operates from 2.35 V to 5.25 V, achieves 1 MSPS throughput, delivers 71 dB SNR at 100 kHz input, and features no pipeline delay. It serves as the primary digitizer in portable medical sensors requiring high-speed, low-power signal acquisition with rail-to-rail input range (0 V to VDD).
For engineers reviewing the AD7476AYKSZ-500RL7 datasheet, AD7476AYKSZ-500RL7 pinout, AD7476AYKSZ-500RL7 application, or AD7476AYKSZ-500RL7 equivalent, this page provides verified specifications, SC70 package mapping, functional pin roles, real-world use cases in battery-powered instrumentation, and two validated alternative parts for design flexibility.
Technical Context
The AD7476AYKSZ-500RL7 implements a standard SAR architecture with a track-and-hold amplifier capable of >13 MHz full-power bandwidth. Conversion is initiated on the falling edge of CS, and data is clocked out MSB-first on SDATA synchronized to SCLK falling edges - requiring exactly 16 SCLK cycles per conversion.
It uses an internal VDD-referenced ADC core, eliminating external reference components and enabling 0 V to VDD analog input range. Power management includes a standby mode drawing ≤1 µA, with dynamic power scaling tied directly to SCLK frequency and sample rate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - supports precise digitization of sensor outputs with 1 LSB = VDD/4096 step size |
| Throughput Rate | 1 MSPS - enables real-time sampling of signals up to ~400 kHz Nyquist bandwidth |
| Supply Voltage Range | 2.35 V to 5.25 V - compatible with single Li-ion, 3.3 V, and 5 V system rails |
| SNR @ 100 kHz | 71 dB min - ensures ≥11.5 effective bits for clean signal capture in noisy environments |
| Power Dissipation @ 1 MSPS | 5.1 mW max at 5 V / 3.6 mW max at 3 V - enables continuous high-speed operation in space-constrained portable devices |
| Aperture Jitter | 30 ps typ - limits sampling uncertainty to <0.1 LSB at 100 kHz input |
| INL | ±1.5 LSB max - guarantees monotonicity and predictable transfer function across full temperature range (–40°C to +125°C) |
Pinout & Package
AD7476AYKSZ-500RL7 is housed in a 6-lead SC70 package (2.0 mm × 1.25 mm, 0.9 mm height), optimized for ultra-compact PCB layouts in handheld and wearable systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Analog input | Single-ended input referenced to GND; accepts 0 V to VDD range without external level-shifting |
| GND | Analog ground | Primary reference for analog circuitry; must be connected to low-impedance system AGND plane |
| VDD | Power supply | Single supply powering both analog and digital sections; also serves as internal reference source |
| CS | Chip select | Active-low control initiating conversion and framing serial output; sampled on falling edge |
| SDATA | Serial data output | Three-state CMOS output delivering 12-bit result MSB-first with four leading zeros |
| SCLK | Serial clock | Input clock controlling conversion timing and data readout; determines throughput rate (tCONVERT = 16 × tSCLK) |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | True single-cycle conversion with deterministic latency - simplifies timing-critical control loops |
| VDD-referenced architecture | Eliminates need for external voltage reference or reference buffer, reducing BOM count and layout area |
| 1 µA standby current | Enables microcontroller-gated power cycling in intermittent-sampling applications (e.g., periodic biosensor reads) |
| SPI/QSPI/MICROWIRE/DSP compatibility | Direct interface to common microcontrollers without protocol translation logic or firmware overhead |
| SC70 footprint | Smallest available package for 12-bit 1 MSPS ADCs - saves >60% board area vs. MSOP-8 alternatives |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Continuous acquisition of ECG or pulse oximetry analog signals in handheld diagnostic tools. IC Role / Device Role / Timing Role: Primary digitizer capturing biopotential waveforms at ≥1 kSPS with minimal power draw between measurements. Use Value: 71 dB SNR preserves small-signal fidelity; 1 µA standby extends battery life beyond 1 week on coin-cell power. |
Use Scenario: Periodic environmental monitoring (temperature, humidity) in remote field nodes powered by energy harvesting. IC Role / Device Role / Timing Role: Low-duty-cycle ADC activated only during scheduled measurement windows. Use Value: VDD-referenced design avoids external reference drift; SC70 size allows integration into sub-100 mm² sensor modules. |
| Optical Sensor Front-Ends | Industrial Control Signal Conditioning |
Use Scenario: Digitizing photodiode or ambient light sensor outputs in smart lighting or gesture recognition systems. IC Role / Device Role / Timing Role: High-bandwidth front-end ADC handling fast transient responses from optical detectors. Use Value: 13.5 MHz full-power bandwidth captures rapid light-intensity changes; 30 ps aperture jitter maintains timing accuracy. |
Use Scenario: Converting analog feedback signals (e.g., motor current, position transducer) in compact PLC I/O modules. IC Role / Device Role / Timing Role: Isolated analog input channel interfacing via SPI to industrial MCU with tight real-time deadlines. Use Value: Guaranteed no missing codes and ±1.5 LSB INL ensure reliable closed-loop control; –40°C to +125°C Y-grade rating supports harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7476ARMZ | Same 12-bit SAR core and SC70-6 package, but A-grade (–40°C to +85°C) vs. Y-grade (–40°C to +125°C); identical electrical specs | Not qualified for extended-temperature industrial or automotive under-hood use | Select AD7476ARMZ only if operating ambient stays ≤85°C and cost sensitivity outweighs thermal margin needs |
| ADS7822U | 12-bit, 200 kSPS max, 8-pin SOIC; requires external reference; higher power (1.25 mW @ 200 kSPS) | Lacks 1 MSPS speed and integrated reference; unsuitable for high-throughput portable designs | Choose ADS7822U only when lower speed suffices and SOIC assembly is preferred over SC70 reflow constraints |
Compared with AD7476ARMZ, AD7476AYKSZ-500RL7 adds guaranteed operation to +125°C and automotive qualification; compared with ADS7822U, it delivers 5× higher throughput, eliminates external reference dependency, and reduces board area by >70%.
Availability
AD7476AYKSZ-500RL7 is available at Aetrix Electronics and suitable for battery-powered systems, portable medical instruments, and optical sensor interfaces requiring stable component supply across automotive and industrial temperature ranges.
Supply support for AD7476AYKSZ-500RL7 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 AD7476A series belongs to Analog Devices' precision SAR ADC product line, designed specifically for space- and power-constrained applications demanding high speed, low noise, and simplified system integration without external references.
FAQ
What is the maximum sampling rate supported by the AD7476AYKSZ-500RL7?
The AD7476AYKSZ-500RL7 supports a maximum throughput rate of 1 MSPS, achieved when the serial clock (SCLK) operates at 20 MHz. Its conversion time is fixed at 16 SCLK cycles, so lowering SCLK proportionally reduces throughput - e.g., at 10 MHz SCLK, the rate drops to 625 kSPS. This deterministic timing enables precise synchronization in time-critical systems.
Does the AD7476AYKSZ-500RL7 require an external voltage reference?
No, the AD7476AYKSZ-500RL7 uses an internal reference derived from VDD, enabling a full-scale input range of 0 V to VDD. This eliminates the need for external reference ICs or buffers, reducing component count, PCB area, and potential error sources like reference drift or noise coupling - a key advantage in compact, low-power designs.
What is the operating temperature range for the AD7476AYKSZ-500RL7?
The AD7476AYKSZ-500RL7 is rated for operation from –40°C to +125°C (Y-grade), making it suitable for automotive under-hood, industrial control, and extended-environment portable equipment. This exceeds the –40°C to +85°C range of the A- and B-grade variants and is explicitly qualified for automotive applications per the datasheet.
How does the AD7476AYKSZ-500RL7 handle power management in low-duty-cycle applications?
The AD7476AYKSZ-500RL7 features a full power-down mode drawing ≤1 µA (typically 50 nA), activated by holding CS high. In this state, the internal circuitry is disabled while retaining configuration. Upon CS assertion, it powers up in ≤1 µs - enabling rapid wake-up for burst-mode sampling in energy-harvesting or battery-operated systems without sacrificing responsiveness.
What serial interface protocols is the AD7476AYKSZ-500RL7 compatible with?
The AD7476AYKSZ-500RL7 supports SPI, QSPI, MICROWIRE, and generic DSP serial interfaces. Its SDATA output is three-state and synchronized to SCLK falling edges, with data formatted as four leading zeros followed by 12 MSB-first bits. No mode pins or configuration registers are required - compatibility is inherent in its timing and signaling behavior.
AD7476AYKSZ-500RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 1M
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI, DSP
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- Supply
- Voltage - Supply, Analog:
- 2.35V ~ 5.25V
- Voltage - Supply, Digital:
- 2.35V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- SC-70-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7476AYKSZ-500RL7 FAQ
1.How can I place an order for AD7476AYKSZ-500RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7476AYKSZ-500RL7 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 AD7476AYKSZ-500RL7 reliable?
The price and inventory of AD7476AYKSZ-500RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7476AYKSZ-500RL7 is usually 5 days.
3.What payment methods are accepted for AD7476AYKSZ-500RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7476AYKSZ-500RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7476AYKSZ-500RL7?
AD7476AYKSZ-500RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7476AYKSZ-500RL7 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 AD7476AYKSZ-500RL7?
For technical support, including AD7476AYKSZ-500RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7476AYKSZ-500RL7 requirements.
6.How does Aetrix verify that AD7476AYKSZ-500RL7 is sourced from the original manufacturer or authorized distributors?
All AD7476AYKSZ-500RL7 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 AD7476AYKSZ-500RL7 meets industry standards.
7.What is the process for return or replacement of AD7476AYKSZ-500RL7?
All AD7476AYKSZ-500RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7476AYKSZ-500RL7, 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 AD7476AYKSZ-500RL7 part is unused and in its original packaging.
Return procedure for AD7476AYKSZ-500RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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