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Analog Devices Inc. AD7492ARUZ-5-REEL7
- Part No.:
- AD7492ARUZ-5-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7492ARUZ-5-REEL7.pdf
- Description:
- IC ADC 12BIT SAR 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,427
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Product details
Overview
AD7492ARUZ-5-REEL7 from Analog Devices is a 12-bit, 1.25 MSPS successive approximation ADC with integrated 2.5 V reference and on-chip clock oscillator. It operates from a single 4.75 V to 5.25 V supply, consumes 16 mW typical at full throughput, and delivers 70 dB SNR at 100 kHz input - enabling high-fidelity data acquisition in space-constrained industrial DAQ and real-time control systems.
For engineers reviewing the AD7492ARUZ-5-REEL7 datasheet, AD7492ARUZ-5-REEL7 pinout, AD7492ARUZ-5-REEL7 application, or AD7492ARUZ-5-REEL7 equivalent, this page provides verified technical context, validated pin functions, confirmed sleep-mode behavior, parallel interface timing constraints, and real-world application mappings - all specific to the AD7492-5 variant in 24-lead TSSOP packaging.
Technical Context
The AD7492ARUZ-5-REEL7 implements a capacitive DAC-based SAR architecture with no pipeline delay, sampling on the falling edge of CONVST and completing conversion in 680 ns max. Its track/hold amplifier supports 10 MHz full-power bandwidth and settles within 120 ns acquisition time.
Digital interface flexibility is achieved via VDRIVE (2.7 V–5.25 V), which independently sets logic thresholds and output drive levels - allowing 5 V analog performance while interfacing directly to 3 V microcontrollers. Sleep mode selection (partial/full) is hardware-controlled by PS/FS, enabling 250 μA or 1 μA quiescent current respectively.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 1 LSB = 610 μV step size with 2.5 V reference for precise sensor digitization. |
| Throughput Rate | 1.25 MSPS - supports real-time sampling of signals up to 500 kHz Nyquist bandwidth without aliasing. |
| SNR @ 100 kHz | 70 dB typ - enables >11.3 effective bits for vibration monitoring or audio-band signal conditioning. |
| Conversion Time | 680 ns max - defines minimum inter-conversion interval and enables tight deterministic timing in closed-loop control. |
| Power Dissipation | 16.5 mW max at 1.25 MSPS - allows continuous high-speed operation in thermally constrained embedded modules. |
| Integral Nonlinearity | ±1.5 LSB max - ensures monotonicity and <0.037% full-scale error for calibration-critical instrumentation. |
| Reference Voltage | 2.5 V ±1.5% - stable internal reference eliminates external REF IC, reducing BOM count and layout area. |
Pinout & Package
AD7492ARUZ-5-REEL7 is housed in a 24-lead TSSOP package (RU-24), with 0.65 mm pitch and exposed pad for thermal enhancement. Pin 1 marked with dot; pin numbering follows standard counter-clockwise convention from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DB0–DB11 | Parallel digital output bus (LSB to MSB) | Three-state outputs driven by VDRIVE; enable direct connection to 8-/16-bit microcontroller data buses without level shifters. |
| CONVST | Conversion start trigger | Falling-edge initiated sampling; low-hold duration determines automatic entry into partial/full sleep mode post-conversion. |
| BUSY | Conversion status indicator | Active-high pulse (680 ns) signals active conversion; falling edge marks valid data availability and initiates next acquisition window. |
| CS / RD | Parallel interface control pair | Interchangeable active-low signals; simultaneous assertion places conversion result on DB[0:11] bus - supports asynchronous read timing. |
| VIN | Analog input channel | Single-ended, 0 V to 2.5 V range; 33 pF input capacitance and ±1 μA leakage support passive RC anti-alias filtering. |
| REF OUT | Internal reference output | 2.5 V ±1.5% buffered source; usable as precision reference for external circuitry or as REFIN for ratiometric sensor interfaces. |
| VDRIVE | Digital I/O supply rail | Decouples logic interface voltage from AVDD/DVDD; permits mixed-voltage system integration (e.g., 5 V ADC + 3.3 V MCU). |
| PS/FS | Sleep mode selector | Hardwired high/low to configure 250 μA (partial) or 1 μA (full) quiescent current - critical for battery-powered wake-on-event designs. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | True one-shot conversion with deterministic 680 ns latency - essential for time-critical feedback loops where jitter-free sampling instant matters. |
| Integrated clock oscillator | Eliminates external crystal or clock generator; reduces component count and PCB footprint while guaranteeing timing compliance across temperature. |
| VDRIVE voltage control | Enables independent optimization of analog performance (5 V AVDD) and digital compatibility (3.3 V VDRIVE) - avoids level-shifter cost and signal integrity degradation. |
| Two-tier sleep modes | Hardware-selectable 250 μA (partial) or 1 μA (full) standby current - extends battery life in portable test equipment without sacrificing wake-up responsiveness. |
| Internal 2.5 V reference | ±1.5% accuracy over −40°C to +85°C - removes need for external reference IC and associated decoupling, simplifying layout and improving long-term stability. |
Applications
| Industrial Process Monitoring | Motor Control Feedback |
|---|---|
|
Use Scenario: Real-time acquisition of current/voltage sensors in PLC analog input modules operating in noisy factory environments. IC Role / Device Role / Timing Role: Primary ADC capturing synchronized multi-channel samples at 1 MSPS+ for PID loop execution and fault detection. Use Value: 70 dB SNR and 10 MHz bandwidth preserve signal fidelity despite EMI; integrated REF/CLK reduce susceptibility to board-level noise coupling. |
Use Scenario: Sampling phase currents in three-phase inverter drives for field-oriented control (FOC) algorithms. IC Role / Device Role / Timing Role: High-speed, low-latency ADC providing sub-microsecond sampling alignment across current shunt measurements. Use Value: 680 ns conversion time and no pipeline delay ensure deterministic timing between PWM edge and current capture - critical for torque ripple minimization. |
| Portable Test Equipment | Medical Sensor Interface |
|
Use Scenario: Battery-powered handheld oscilloscopes or multimeters requiring high-resolution waveform capture with extended runtime. IC Role / Device Role / Timing Role: Core data converter managing dynamic power scaling via PS/FS-controlled sleep modes during idle periods. Use Value: Full sleep mode draws only 1 μA, enabling weeks of standby on coin-cell batteries while maintaining sub-μs wake-up readiness for triggered acquisitions. |
Use Scenario: Digitizing biopotential signals (ECG, EMG) in compact wearable monitors with strict size and power budgets. IC Role / Device Role / Timing Role: Low-noise, low-power ADC handling DC-coupled analog front-end outputs with minimal external components. Use Value: 2.5 V internal reference enables ratiometric measurement against sensor excitation; 33 pF input capacitance simplifies anti-alias filter design for <100 Hz bandwidths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7492BRUZ-5 | B-grade version with tighter INL (±1.25 LSB max vs. ±1.5 LSB) and same 1.25 MSPS throughput; identical pinout and timing. | Preferred for metrology-grade instruments requiring guaranteed monotonicity and lower code-width variation. | Select AD7492BRUZ-5 when absolute linearity and guaranteed no-missed-codes under worst-case conditions are mandatory. |
| ADS7822U | 12-bit, 250 kSPS SAR ADC with SPI interface; no internal reference or oscillator; requires external REF and clock source. | Suitable for low-throughput, low-pin-count designs where serial interface and minimal external components outweigh speed needs. | Choose ADS7822U only if system already uses SPI infrastructure and can accommodate external reference/clock - not a drop-in replacement. |
Compared with AD7492ARUZ-5-REEL7, the AD7492BRUZ-5 offers improved DC accuracy at identical speed and integration, while the ADS7822U trades throughput and integration for interface simplicity and lower pin count - making it relevant only in cost- or space-constrained low-speed applications.
Availability
AD7492ARUZ-5-REEL7 is available at Aetrix Electronics and suitable for industrial process monitoring, motor control feedback, and portable test equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant TSSOP packaging.
Supply support for AD7492ARUZ-5-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 AD7492 family was designed specifically for high-speed, low-power data acquisition in space- and power-constrained embedded systems - emphasizing integration (REF + CLK), deterministic timing, and flexible voltage-domain interfacing.
FAQ
What is the maximum sampling rate supported by the AD7492ARUZ-5-REEL7?
The AD7492ARUZ-5-REEL7 supports a maximum throughput rate of 1.25 MSPS, with a guaranteed conversion time of 680 ns and 120 ns minimum track/hold acquisition time. This enables reliable sampling of input signals up to 500 kHz under Nyquist criteria. The part achieves this performance using an internal clock oscillator and requires no external timing components.
Does the AD7492ARUZ-5-REEL7 require an external reference voltage?
No, the AD7492ARUZ-5-REEL7 includes a built-in 2.5 V reference with ±1.5% accuracy over temperature and supply variations. The REF OUT pin provides access to this reference for use as a stable excitation source or external circuit reference. External referencing is optional but not required for basic operation.
How does the PS/FS pin affect power consumption in the AD7492ARUZ-5-REEL7?
The PS/FS pin selects between two hardware-defined sleep modes in the AD7492ARUZ-5-REEL7: tying it high enables partial sleep (250 μA max quiescent current), while tying it low activates full sleep (1 μA max). These modes engage automatically when CONVST remains low after conversion completion - enabling aggressive power savings in intermittent-sampling applications.
Can the AD7492ARUZ-5-REEL7 interface directly with a 3.3 V microcontroller?
Yes, the AD7492ARUZ-5-REEL7 supports direct interfacing with 3.3 V logic through its VDRIVE pin. By applying 3.3 V to VDRIVE, the digital outputs (DB0–DB11, BUSY, etc.) swing between 0 V and ~3.1 V, and input thresholds align to 3.3 V-compatible levels - all while maintaining full 5 V analog performance on AVDD/DVDD.
What package type is used for the AD7492ARUZ-5-REEL7?
The AD7492ARUZ-5-REEL7 is supplied in a 24-lead TSSOP package (RU-24), with 0.65 mm lead pitch and exposed thermal pad. This RoHS-compliant, surface-mount package supports automated assembly and provides superior thermal performance compared to SOIC, especially under sustained 1.25 MSPS operation.
AD7492ARUZ-5-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:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 1.25M
- 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:
- Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 24-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7492ARUZ-5-REEL7 FAQ
1.How can I place an order for AD7492ARUZ-5-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7492ARUZ-5-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 AD7492ARUZ-5-REEL7 reliable?
The price and inventory of AD7492ARUZ-5-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7492ARUZ-5-REEL7 is usually 5 days.
3.What payment methods are accepted for AD7492ARUZ-5-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7492ARUZ-5-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7492ARUZ-5-REEL7?
AD7492ARUZ-5-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7492ARUZ-5-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 AD7492ARUZ-5-REEL7?
For technical support, including AD7492ARUZ-5-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7492ARUZ-5-REEL7 requirements.
6.How does Aetrix verify that AD7492ARUZ-5-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7492ARUZ-5-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 AD7492ARUZ-5-REEL7 meets industry standards.
7.What is the process for return or replacement of AD7492ARUZ-5-REEL7?
All AD7492ARUZ-5-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7492ARUZ-5-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 AD7492ARUZ-5-REEL7 part is unused and in its original packaging.
Return procedure for AD7492ARUZ-5-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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