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Analog Devices Inc. AD7476AYRMZ-REEL7
- Part No.:
- AD7476AYRMZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD7476AYRMZ-REEL7.pdf
- Description:
- IC ADC 12BIT SAR 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,659
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Product details
Overview
AD7476AYRMZ-REEL7 from Analog Devices is a 12-bit, 1 MSPS successive-approximation ADC in a 6-lead SC70 package, operating from 2.35 V to 5.25 V supply. It delivers 71 dB SNR at 100 kHz input, features no pipeline delay, and uses internal VDD-referenced conversion for 0 V to VDD analog input range-ideal for battery-powered data acquisition and portable medical instrumentation.
For engineers reviewing the AD7476AYRMZ-REEL7 datasheet, AD7476AYRMZ-REEL7 pinout, AD7476AYRMZ-REEL7 application, or AD7476AYRMZ-REEL7 equivalent, key selection criteria include guaranteed 12-bit resolution with ±1.5 LSB INL (Y grade), SC70 thermal performance (θJA = 340.2°C/W), SPI-compatible serial interface timing, and automotive-grade operation from –40°C to +125°C.
Technical Context
The AD7476AYRMZ-REEL7 implements a single-supply, track-and-hold–based successive-approximation architecture with CS-controlled sampling initiation and SCLK-synchronized conversion. Its conversion time is fixed at 800 ns (16 SCLK cycles), and it requires no external reference-VDD serves as both supply and reference source.
It supports SPI/QSPI/MICROWIRE/DSP serial protocols with MSB-first output format: four leading zeros followed by 12-bit conversion data. The device enters standby mode drawing ≤1 µA when CS is high, and exhibits 30 ps aperture jitter and 13.5 MHz full-power bandwidth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12 bits - guarantees monotonic 12-bit output with no missing codes across full temperature range. |
| Throughput Rate | 1 MSPS - enables real-time sampling of signals up to ~500 kHz Nyquist bandwidth. |
| Supply Voltage Range | 2.35 V to 5.25 V - supports direct interfacing with 3 V and 5 V logic domains without level shifters. |
| SNR @ 100 kHz | 71 dB min - ensures ≥11.5 effective number of bits (ENOB) for precision sensor digitization. |
| INL (Y Grade) | ±1.5 LSB max - maintains linearity critical for closed-loop control and calibration-critical systems. |
| Power Dissipation @ 3 V | 5.1 mW max at 1 MSPS - enables ultra-low-power operation in energy-constrained edge nodes. |
| Aperture Jitter | 30 ps typ - limits sampling uncertainty to <0.05 LSB at 100 kHz input, preserving dynamic accuracy. |
Pinout & Package
AD7476AYRMZ-REEL7 is housed in a 6-lead SC70 package (2.0 mm × 1.25 mm × 0.9 mm), optimized for space-constrained PCB layouts and thermally demanding environments (θJA = 340.2°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Single 2.35–5.25 V rail powers analog core, digital interface, and internal reference; no external reference required. |
| GND | Analog ground reference | Common return for analog input and internal circuitry; must be routed separately from digital ground to minimize noise coupling. |
| VIN | Analog input channel | Single-ended input with 0 V to VDD range; 20 pF input capacitance requires low-impedance driving (<130 Ω recommended for THD < –80 dB). |
| CS | Chip select / conversion trigger | Active-low signal initiates sampling on falling edge and frames serial data transfer; controls power-down entry/exit. |
| SDATA | Serial data output | Three-state CMOS output delivering 16-bit frame (4 leading zeros + 12-bit result) MSB first on SCLK falling edges. |
| SCLK | Serial clock input | Drives both data transfer and internal conversion timing; supports up to 20 MHz; determines throughput rate and average power consumption. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | True successive-approximation architecture ensures deterministic 800 ns conversion latency-critical for time-triggered control loops. |
| VDD-referenced conversion | Eliminates need for external reference IC or precision resistor divider, reducing BOM count and layout area in compact systems. |
| Automotive-qualified Y grade | Specified from –40°C to +125°C with full parametric validation, enabling use in under-hood and ADAS sensor front-ends. |
| Low-power standby mode | 1 µA max quiescent current allows rapid wake-up (<1 µs power-up time) while maintaining system-level energy budgets. |
| SC70 footprint | Smallest available package for 12-bit 1 MSPS ADCs-reduces board area by >40% vs. MSOP-8 alternatives without sacrificing thermal or electrical performance. |
Applications
| Battery-Powered Data Loggers | Portable Medical Sensors |
|---|---|
Use Scenario: Continuous monitoring of ECG, pulse oximetry, or glucose sensor outputs in handheld diagnostic devices powered by coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: Primary analog front-end digitizer acquiring single-ended biomedical signals at 1 MSPS with minimal power overhead. Use Value: 5.1 mW max power at 3 V enables >100 hours of continuous operation on a 200 mAh battery; SC70 size fits within tight wearable form factors. |
Use Scenario: High-fidelity analog signal capture in portable ultrasound probes or point-of-care blood analyzers requiring precise amplitude tracking. IC Role / Device Role / Timing Role: Precision 12-bit digitizer for low-noise transducer interfaces, leveraging 71 dB SNR and 30 ps aperture jitter to preserve signal integrity. Use Value: ±1.5 LSB INL ensures accurate calibration traceability across temperature; VDD-referenced design avoids drift from external reference components. |
| Industrial Process Monitoring | Optical Sensor Signal Conditioning |
Use Scenario: Real-time voltage/current sensing in programmable logic controller (PLC) I/O modules deployed in factory automation cabinets. IC Role / Device Role / Timing Role: High-speed ADC for isolated analog inputs feeding FPGA-based control algorithms with deterministic 800 ns latency. Use Value: 1 MSPS throughput supports oversampling for noise reduction; automotive-grade temp range ensures reliability in uncooled industrial enclosures. |
Use Scenario: Digitizing photodiode or CCD output in compact optical encoders, spectrometers, or laser alignment tools. IC Role / Device Role / Timing Role: Low-jitter, wide-bandwidth ADC capturing fast optical pulses with 13.5 MHz full-power bandwidth. Use Value: 20 pF input capacitance minimizes loading on high-impedance photodiode circuits; 12-bit resolution resolves fine intensity gradations in spectral analysis. |
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-REEL | Same silicon, A grade (–40°C to +85°C), not automotive-qualified; identical SC70-6 package and pinout. | Lacks extended temperature validation; unsuitable for under-hood or high-reliability industrial deployments. | Select AD7476AYRMZ-REEL7 when operation beyond +85°C or automotive qualification is required. |
| ADS7822U | 12-bit, 200 kSPS, 8-pin SOIC; higher power (1.25 mW @ 3 V), lower speed, no VDD reference-requires external 2.5 V reference. | Slower throughput and larger footprint limit use in portable, high-density designs. | Choose ADS7822U only if lower sampling rate and external reference tolerance are acceptable trade-offs for cost-sensitive legacy designs. |
Compared with AD7476ARMZ-REEL, AD7476AYRMZ-REEL7 adds validated operation to +125°C and tighter INL consistency over temperature-critical for automotive and industrial field equipment. Versus ADS7822U, it delivers 5× higher throughput, 4× smaller footprint, and eliminates reference component dependency.
Availability
AD7476AYRMZ-REEL7 is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical sensors, and industrial process monitoring requiring stable component supply across automotive and extended-temperature applications.
Supply support for AD7476AYRMZ-REEL7 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.
AD7476AYRMZ-REEL7 belongs to the AD7476A/AD7477A/AD7478A family-designed specifically for space- and power-constrained applications needing high-speed, high-resolution digitization without external references or complex support circuitry.
FAQ
What is the maximum sample rate supported by the AD7476AYRMZ-REEL7?
The AD7476AYRMZ-REEL7 supports a maximum throughput rate of 1 MSPS, achieved with a 20 MHz serial clock and 16 SCLK cycles per conversion. This rate is fully specified across its operating temperature range (–40°C to +125°C) and supply voltage range (2.35 V to 5.25 V). At lower clock frequencies, throughput scales linearly-for example, 10 MHz SCLK yields 500 kSPS.
Does the AD7476AYRMZ-REEL7 require an external voltage reference?
No, the AD7476AYRMZ-REEL7 uses an internal VDD-referenced architecture, meaning its full-scale analog input range is 0 V to VDD. This eliminates the need for external reference ICs or precision resistor dividers, simplifying design and reducing BOM cost and board area-particularly valuable in compact, battery-operated systems where the AD7476AYRMZ-REEL7 is commonly deployed.
What is the meaning of the 'Y' in AD7476AYRMZ-REEL7?
The 'Y' suffix in AD7476AYRMZ-REEL7 denotes the automotive-grade temperature rating: –40°C to +125°C. This grade undergoes additional characterization and screening to meet stringent automotive reliability requirements, including extended temperature validation of all DC and dynamic parameters-making it suitable for under-hood, ADAS, and industrial control applications where standard commercial (A) or industrial (B) grades would not suffice.
How does the AD7476AYRMZ-REEL7 handle power-down mode?
The AD7476AYRMZ-REEL7 enters full power-down mode when CS is held high, drawing ≤1 µA (typically 50 nA). It wakes up in <1 µs upon CS assertion, enabling rapid, low-overhead duty-cycled operation. This feature is essential for battery-powered systems where average power must be minimized between active sampling bursts-directly supporting the AD7476AYRMZ-REEL7's role in portable instrumentation and wireless sensor nodes.
Is the AD7476AYRMZ-REEL7 pin-compatible with other members of the AD7476A/AD7477A/AD7478A family?
Yes, the AD7476AYRMZ-REEL7 shares identical 6-lead SC70 pinout and interface protocol with AD7477A and AD7478A variants. All three use the same CS/SCLK/SDATA/VIN/VDD/GND arrangement and deliver data in compatible 16-bit frames (differing only in bit significance and trailing zero count). This allows hardware reuse across 12-/10-/8-bit resolution needs-though firmware must adjust for differing data widths and timing constraints.
AD7476AYRMZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- 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:
- 8-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7476AYRMZ-REEL7 FAQ
1.How can I place an order for AD7476AYRMZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7476AYRMZ-REEL7 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 AD7476AYRMZ-REEL7 reliable?
The price and inventory of AD7476AYRMZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7476AYRMZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD7476AYRMZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7476AYRMZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7476AYRMZ-REEL7?
AD7476AYRMZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7476AYRMZ-REEL7 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 AD7476AYRMZ-REEL7?
For technical support, including AD7476AYRMZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7476AYRMZ-REEL7 requirements.
6.How does Aetrix verify that AD7476AYRMZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7476AYRMZ-REEL7 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 AD7476AYRMZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD7476AYRMZ-REEL7?
All AD7476AYRMZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7476AYRMZ-REEL7, 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 AD7476AYRMZ-REEL7 part is unused and in its original packaging.
Return procedure for AD7476AYRMZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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