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Analog Devices Inc. AD7476AYKSZ-REEL7
- Part No.:
- AD7476AYKSZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
AD7476AYKSZ-REEL7.pdf
- Description:
- IC ADC 12BIT SAR SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,223
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Product details
Overview
AD7476AYKSZ-REEL7 from Analog Devices is a 12-bit, single-channel, successive-approximation ADC in a 6-lead SC70 package, operating from 2.35 V to 5.25 V with 1 MSPS throughput, 71 dB SNR at 100 kHz input, and no pipeline delay. It serves as the primary analog front-end digitizer in space-constrained, battery-powered data acquisition systems requiring high-speed, low-power conversion.
For engineers reviewing the AD7476AYKSZ-REEL7 datasheet, AD7476AYKSZ-REEL7 pinout, AD7476AYKSZ-REEL7 application, or AD7476AYKSZ-REEL7 equivalent, key selection considerations include its 12-bit resolution with ±1.5 LSB INL, SC70 thermal performance (θJA = 340.2°C/W), SPI-compatible serial interface timing, and automotive-grade Y-grade temperature range (–40°C to +125°C).
Technical Context
The AD7476AYKSZ-REEL7 implements a standard successive-approximation register (SAR) architecture with an integrated track-and-hold amplifier capable of >13 MHz full-power bandwidth. Conversion is initiated on the falling edge of CS, with sampling synchronized to that edge and no latency between command and sample capture.
It uses an internal VDD-referenced reference, enabling a 0 V to VDD analog input range and eliminating external reference components. Serial data output is MSB-first, with four leading zeros followed by 12 data bits, compatible with SPI, QSPI, MICROWIRE, and DSP interfaces at up to 20 MHz SCLK.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 1 LSB = VDD/4096 quantization step for precise sensor or signal monitoring. |
| Throughput Rate | 1 MSPS - supports real-time sampling of signals up to ~400 kHz Nyquist bandwidth. |
| SNR @ 100 kHz | 71 dB min - enables accurate digitization of medium-frequency analog signals with low noise floor. |
| Supply Range | 2.35 V to 5.25 V - allows direct interfacing with 3.3 V or 5 V logic and mixed-voltage systems. |
| Power @ 1 MSPS | 5.1 mW max at 5 V / 3.6 mW max at 3 V - suitable for always-on sensing nodes with strict energy budgets. |
| INL | ±1.5 LSB max - ensures monotonicity and predictable linearity across full-scale range without calibration. |
| Operating Temp | –40°C to +125°C (Y grade) - qualified for under-hood automotive, industrial control, and harsh-environment use. |
Pinout & Package
AD7476AYKSZ-REEL7 is housed in a 6-lead SC70 package (2.0 mm × 1.25 mm, 0.95 mm height), optimized for thermal dissipation in compact PCB layouts (θJA = 340.2°C/W). Its pinout is fully defined and validated per Analog Devices Rev. G datasheet Figure 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Analog input | Single-ended input referenced to GND; accepts 0 V to VDD range with 20 pF input capacitance. |
| 2 - GND | Analog ground | Primary reference for analog circuitry; must be connected to clean system AGND plane. |
| 3 - VDD | Power supply | Single 2.35–5.25 V rail powering both analog and digital sections; decoupling required near pin. |
| 4 - CS | Chip select | Active-low control initiating sampling on falling edge and framing 16-bit serial output sequence. |
| 5 - SDATA | Serial data output | Three-state CMOS output delivering 4 leading zeros + 12-bit result MSB-first on SCLK falling edges. |
| 6 - SCLK | Serial clock | Input clock driving both data transfer and internal conversion timing; supports up to 20 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | True SAR architecture ensures deterministic 800 ns conversion time and immediate sample availability-critical for closed-loop control timing. |
| VDD-referenced internal reference | Eliminates need for external reference IC or resistor divider, reducing BOM count and layout area in cost-sensitive designs. |
| 1 µA standby current | Enables ultra-low-power sleep modes between acquisitions, extending battery life in portable instrumentation and IoT endpoints. |
| SC70 footprint | Smallest available package for 12-bit 1 MSPS ADCs-ideal for wearables, medical patches, and miniaturized test equipment. |
| SPI/QSPI/MICROWIRE compatibility | Direct drop-in support for common microcontroller peripheral interfaces without protocol translation or glue logic. |
Applications
| Medical Instrumentation | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Continuous analog signal digitization from ECG, pulse oximetry, or temperature sensors in handheld diagnostic devices. IC Role / Device Role / Timing Role: Primary SAR ADC capturing physiological waveforms at ≥1 kSPS with minimal power draw and no latency-induced phase error. Use Value: 71 dB SNR preserves small-signal fidelity; 12-bit resolution enables sub-millivolt detection; SC70 size fits within tight enclosure constraints. |
Use Scenario: Long-term environmental monitoring using thermistors, humidity sensors, and gas detectors powered by coin cells or solar harvesters. IC Role / Device Role / Timing Role: Low-duty-cycle ADC activated only during scheduled sampling bursts, leveraging 1 µA standby mode between conversions. Use Value: 3.6 mW active power at 3 V extends multi-year battery life; –40°C to +125°C rating ensures field reliability across climates. |
| Automotive Sensor Interfaces | Industrial Control Signal Conditioning |
Use Scenario: Engine bay pressure, coolant temperature, or exhaust gas sensor readout in ADAS or powertrain ECUs. IC Role / Device Role / Timing Role: High-temperature-stable ADC interfacing directly to ratiometric sensors, with VDD-referenced scaling matching supply variations. Use Value: Y-grade qualification guarantees operation at +125°C junction; 12-bit resolution supports precise calibration tables; no external reference simplifies AEC-Q100-compliant design. |
Use Scenario: Digitizing 4–20 mA loop outputs, thermocouple voltages, or strain gauge bridges in PLC I/O modules and motor drives. IC Role / Device Role / Timing Role: Precision front-end converter providing isolated analog-to-digital conversion with known timing behavior for deterministic control cycles. Use Value: ±1.5 LSB INL ensures repeatability across temperature; 1 MSPS rate accommodates fast transient detection; SPI interface eases integration with ARM Cortex-M real-time firmware. |
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 |
|---|---|---|---|
| ADS7822IDGKR | 12-bit, 250 kSPS, 8-lead VSSOP, external reference required, 2.7–5.25 V supply | Lower speed and larger package; lacks automotive qualification and VDD-referenced simplicity | Choose when lower throughput suffices and external reference is already present in system. |
| MAX1116EKA+T | 12-bit, 1 MSPS, SOT23-6, internal reference, 2.7–3.6 V only, –40°C to +85°C | Narrower voltage range and commercial temp grade; higher typical IDD (2.5 mA vs. 1.7 mA) | Consider for cost-sensitive 3.3 V-only designs where extended temperature is not required. |
Compared with ADS7822IDGKR and MAX1116EKA+T, AD7476AYKSZ-REEL7 uniquely combines 1 MSPS speed, SC70 size, VDD-referenced operation, and automotive-grade temperature range-making it the only option meeting all four criteria simultaneously for space- and reliability-critical embedded systems.
Availability
AD7476AYKSZ-REEL7 is available at Aetrix Electronics and suitable for battery-powered systems, medical instrumentation, and automotive sensor interfaces requiring stable component supply across long production lifecycles.
Supply support for AD7476AYKSZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD7476A family was designed specifically to deliver high-speed, low-power, miniature 12-/10-/8-bit SAR ADCs for portable, automotive, and industrial applications where board space and energy efficiency are critical constraints.
FAQ
What is the maximum sampling rate supported by the AD7476AYKSZ-REEL7?
The AD7476AYKSZ-REEL7 supports a maximum throughput rate of 1 MSPS, achieved with a 20 MHz serial clock and 16 SCLK cycles per conversion. At this rate, conversion time is guaranteed ≤800 ns, and the device maintains 71 dB SNR at 100 kHz input frequency per the Rev. G datasheet specifications.
Does the AD7476AYKSZ-REEL7 require an external voltage reference?
No, the AD7476AYKSZ-REEL7 uses an internal reference derived from VDD, enabling a full-scale analog input range of 0 V to VDD. This eliminates the need for external reference components, simplifying design and reducing bill-of-materials cost while maintaining accuracy across the specified supply range.
What is the operating temperature range for the AD7476AYKSZ-REEL7?
The AD7476AYKSZ-REEL7 is a Y-grade part rated for operation from –40°C to +125°C, qualified for automotive applications per the manufacturer's ordering guide. This extended temperature range is validated across all electrical specifications including INL, SNR, and power consumption.
How does the serial interface of the AD7476AYKSZ-REEL7 work?
The AD7476AYKSZ-REEL7 uses a SPI-compatible 3-wire serial interface (CS, SCLK, SDATA). Conversion starts on the falling edge of CS, and 16 bits of data (4 leading zeros + 12-bit result) are clocked out MSB-first on the falling edge of SCLK. The interface is also compatible with QSPI, MICROWIRE, and DSP protocols.
What package type is used for the AD7476AYKSZ-REEL7?
The AD7476AYKSZ-REEL7 is packaged in a 6-lead SC70 (SOT-323) case measuring 2.0 mm × 1.25 mm × 0.95 mm. This is the smallest commercially available package for a 12-bit, 1 MSPS SAR ADC and is explicitly documented in the Rev. G datasheet Figure 5 and Ordering Guide.
AD7476AYKSZ-REEL7 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-REEL7 FAQ
1.How can I place an order for AD7476AYKSZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7476AYKSZ-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 AD7476AYKSZ-REEL7 reliable?
The price and inventory of AD7476AYKSZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7476AYKSZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD7476AYKSZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7476AYKSZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7476AYKSZ-REEL7?
AD7476AYKSZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7476AYKSZ-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 AD7476AYKSZ-REEL7?
For technical support, including AD7476AYKSZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7476AYKSZ-REEL7 requirements.
6.How does Aetrix verify that AD7476AYKSZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7476AYKSZ-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 AD7476AYKSZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD7476AYKSZ-REEL7?
All AD7476AYKSZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7476AYKSZ-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 AD7476AYKSZ-REEL7 part is unused and in its original packaging.
Return procedure for AD7476AYKSZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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