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Analog Devices Inc. AD7472YRU-REEL7
- Part No.:
- AD7472YRU-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7472YRU-REEL7.pdf
- Description:
- IC ADC 12BIT SAR 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,877
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Product details
Overview
AD7472YRU-REEL7 from Analog Devices is a 12-bit, 1.2 MSPS high-speed successive approximation ADC in a 24-lead TSSOP package, operating from 2.7 V to 5.25 V supplies with 4.5 mW typical power at 3 V. It features a 20 MHz full-power bandwidth, 70 dB SNR at 500 kHz input, and supports external 2.5 V reference for 0 V to 2.5 V analog input range. It is used in precision data acquisition systems requiring low-latency, no-pipeline-delay conversion.
For engineers reviewing the AD7472YRU-REEL7 datasheet, AD7472YRU-REEL7 pinout, AD7472YRU-REEL7 application, or AD7472YRU-REEL7 equivalent, key selection considerations include its Y-grade industrial temperature range (–40°C to +125°C), parallel 12-bit DB0–DB11 interface timing, sleep-mode current of 2 µA, and compatibility with 3 V/5 V logic via separate VDRIVE supply.
Technical Context
The AD7472YRU-REEL7 implements a standard successive approximation register (SAR) architecture with track-and-hold, where sampling is triggered on the falling edge of CONVST and conversion completes in exactly 14 CLK IN cycles. Its BUSY signal asserts high at conversion start and deasserts 531.66 ns after CONVST (at 26 MHz clock, 5 V), enabling precise timing control without pipeline latency.
It uses dual-supply separation (AVDD/DVDD ≤ 0.3 V differential) and independent VDRIVE for output driver level-shifting, allowing analog core operation at 5 V for optimal dynamic performance while interfacing to 3 V digital logic. The Y-version specifies operation up to +125°C with reduced maximum clock (20 MHz @ 5 V, 14 MHz @ 3 V) and throughput (1.2 MSPS @ 5 V, 875 kSPS @ 3 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete output levels for high-fidelity digitization of analog sensor or signal chain outputs. |
| Throughput Rate | 1.2 MSPS max at 5 V - enables real-time capture of fast transients in motor control or power quality monitoring. |
| SNR | 70 dB typ at 500 kHz - ensures clean digitization of medium-frequency signals such as audio-band sensors or IF sampling. |
| Integral Nonlinearity | ±2 LSB max - guarantees monotonicity and <1 LSB error across full scale for calibrated measurement systems. |
| Sleep Mode Current | 2 µA max at 5 V - supports ultra-low-power wake-on-event operation in battery-backed industrial IoT nodes. |
| Full Power Bandwidth | 20 MHz - allows accurate digitization of signals up to 20 MHz without amplitude roll-off in front-end filtering. |
| Reference Input | 2.5 V ±1% - requires stable external reference for guaranteed DC accuracy; not internally generated. |
Pinout & Package
AD7472YRU-REEL7 is housed in a 24-lead TSSOP (RU-24) package with 0.65 mm lead pitch, θJA = 115°C/W, and RoHS-compliant finish. Pin functions are validated per Analog Devices AD7472 datasheet Rev. B, Figure 7 (AD7472 top view) and Pin Function Descriptions (pp. 7–8).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CONVST | Conversion Start Input | Falling-edge-triggered sampling control; initiates hold mode and conversion; pulse width ≥10 ns. |
| BUSY | Conversion Status Output | Active-high open-drain signal indicating conversion in progress; falls 531.66 ns after CONVST (26 MHz, 5 V). |
| CS / RD | Parallel Interface Control | Interchangeable active-low inputs enabling read access to DB0–DB11; both can be hardwired low for continuous output. |
| DB0–DB11 | 12-Bit Parallel Data Outputs | Three-state outputs driven by VDRIVE; DB0 = LSB, DB11 = MSB; output coding is straight binary. |
| CLK IN | Master Clock Input | Determines conversion time (14 cycles); disabled during idle (three-state); 20 MHz max for Y-version at 5 V. |
| VIN | Analog Input | Single-ended input referenced to AGND; 0 V to REF IN range; 33 pF input capacitance requires careful driver design. |
| REF IN | External Reference Input | Accepts 2.5 V ±1% reference; 10/20 pF input capacitance; must be decoupled locally for noise immunity. |
| AVDD / DVDD | Analog & Digital Supplies | 2.7 V to 5.25 V each; AVDD–DVDD differential ≤ 0.3 V; separate AGND/DGND required with ≤0.3 V offset. |
| VDRIVE | Output Driver Supply | Independent 2.7 V to 5.25 V supply setting VOH = VDRIVE – 0.2 V; enables mixed-voltage system interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | True SAR architecture ensures deterministic, single-shot conversion with exact 14-cycle timing-critical for closed-loop control timing budgets. |
| Flexible power-throughput scaling | Power scales linearly with clock rate; 875 kSPS at 3 V draws only 1.3 mA, enabling adaptive sampling in energy-constrained applications. |
| Auto-sleep mode | Enters 2 µA sleep automatically after conversion if CONVST remains low; wakes in 1 µs-ideal for event-driven sensing. |
| Separate VDRIVE supply | Decouples output logic levels from DVDD, permitting 5 V analog core operation while driving 3 V FPGA or microcontroller I/O directly. |
| Industrial temperature grade | Specified from –40°C to +125°C (Y-version), qualified for under-hood automotive, industrial PLC, and downhole instrumentation. |
Applications
| Motor Phase Current Sensing | Power Quality Analyzer Front-End |
|---|---|
|
Use Scenario: Real-time sampling of shunt-based current waveforms in three-phase inverters for field-oriented control. IC Role / Device Role / Timing Role: 12-bit SAR ADC capturing synchronized current samples at 1.2 MSPS with sub-ns aperture jitter to preserve phase accuracy. Use Value: Enables <1° current vector angle resolution at 10 kHz fundamental, supporting high-efficiency torque regulation. |
Use Scenario: Digitizing voltage and current waveforms in portable power analyzers for harmonic distortion and flicker analysis. IC Role / Device Role / Timing Role: High-SNR (70 dB) ADC acquiring 50/60 Hz fundamentals plus 50th harmonics (3 kHz) with minimal aliasing. Use Value: Meets IEC 61000-4-30 Class A requirements for harmonic group measurement accuracy up to 9 kHz. |
| Industrial Temperature Transmitter | High-Speed Data Logger Channel |
|
Use Scenario: Converting RTD or thermocouple outputs in explosion-proof process transmitters deployed in oil/gas refineries. IC Role / Device Role / Timing Role: Y-grade ADC operating reliably at +125°C ambient, interfaced to isolated SPI microcontroller via parallel bus. Use Value: Eliminates need for external temperature compensation circuitry due to guaranteed INL ±2 LSB over full industrial range. |
Use Scenario: Multi-channel transient capture in rail signaling test equipment recording surge events on 160 km/h trackside lines. IC Role / Device Role / Timing Role: Low-latency ADC with no pipeline delay feeding FPGA-based real-time waveform buffer and trigger logic. Use Value: Captures 10 µs rise-time surges with <100 ns timing uncertainty, enabling precise fault location within 100 m. |
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 |
|---|---|---|---|
| AD7472ARU-REEL7 | A-grade (–40°C to +85°C); same 12-bit, 1.5 MSPS spec at 5 V; no high-temp qualification. | Suitable for commercial/industrial control cabinets but not under-hood or high-ambient environments. | Select when full Y-grade thermal margin is unnecessary and cost optimization is prioritized. |
| ADS8325IPW | Texas Instruments 16-bit, 100 kSPS SAR ADC; higher resolution but lower speed; SPI interface only. | Used in precision DC measurements (e.g., strain gauge bridges), not high-speed AC waveform capture. | Choose only if resolution >12 bits is mandatory and throughput <1 MSPS is acceptable; not drop-in compatible. |
Compared with AD7472ARU-REEL7, the AD7472YRU-REEL7 adds guaranteed operation to +125°C and relaxed clock limits, making it essential for harsh-environment deployments; versus ADS8325IPW, it trades resolution for 12× higher throughput and parallel interface-critical for real-time control loops.
Availability
AD7472YRU-REEL7 is available at Aetrix Electronics and suitable for motor control systems, power quality analyzers, industrial temperature transmitters, and high-speed data loggers requiring stable component supply across extended temperature ranges.
Supply support for AD7472YRU-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 AD7472YRU-REEL7 belongs to Analog Devices' precision SAR ADC product line, designed specifically for industrial and automotive applications demanding high speed, low power, and extended temperature reliability without pipeline latency.
FAQ
What is the maximum clock frequency supported by AD7472YRU-REEL7?
The AD7472YRU-REEL7 supports up to 20 MHz CLK IN at 5 V and 14 MHz at 3 V, as specified for the Y-version in the Rev. B datasheet. Exceeding these frequencies invalidates timing guarantees and may cause conversion errors. The 20 MHz limit reflects thermal and process margins for reliable operation at +125°C junction temperature.
Does AD7472YRU-REEL7 include an internal voltage reference?
No, AD7472YRU-REEL7 requires an external 2.5 V ±1% reference applied to the REF IN pin. It does not contain an internal reference; all DC accuracy specifications assume this externally supplied reference. Using a lower-precision or unregulated source will degrade INL, gain error, and SNR performance.
Can AD7472YRU-REEL7 interface directly to a 3 V microcontroller while running AVDD at 5 V?
Yes, AD7472YRU-REEL7 supports mixed-voltage interfacing via the dedicated VDRIVE pin. Set VDRIVE = 3 V while AVDD = 5 V to ensure DB0–DB11 outputs swing between 0 V and 2.8 V, compatible with 3 V logic thresholds-enabling optimal analog performance without level shifters.
What is the guaranteed no-missed-codes performance of AD7472YRU-REEL7?
The AD7472YRU-REEL7 guarantees no missed codes to 11 bits, as stated in the Y-version DC accuracy table. This means all 2048 possible 11-bit codes appear monotonically across the full input range, ensuring robust operation in closed-loop feedback systems where code gaps could cause instability.
How does the auto-sleep mode function in AD7472YRU-REEL7?
In auto-sleep mode, AD7472YRU-REEL7 enters 2 µA standby automatically when CONVST remains low after BUSY goes low. It wakes on the next rising edge of CONVST with 1 µs typical wake-up time. This eliminates software-controlled power sequencing and reduces average current in burst-sampling applications.
AD7472YRU-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 1.5M
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 24-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7472YRU-REEL7 FAQ
1.How can I place an order for AD7472YRU-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7472YRU-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 AD7472YRU-REEL7 reliable?
The price and inventory of AD7472YRU-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7472YRU-REEL7 is usually 5 days.
3.What payment methods are accepted for AD7472YRU-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7472YRU-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7472YRU-REEL7?
AD7472YRU-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7472YRU-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 AD7472YRU-REEL7?
For technical support, including AD7472YRU-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7472YRU-REEL7 requirements.
6.How does Aetrix verify that AD7472YRU-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7472YRU-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 AD7472YRU-REEL7 meets industry standards.
7.What is the process for return or replacement of AD7472YRU-REEL7?
All AD7472YRU-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7472YRU-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 AD7472YRU-REEL7 part is unused and in its original packaging.
Return procedure for AD7472YRU-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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