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Analog Devices Inc. AD7492ARUZ-REEL7
- Part No.:
- AD7492ARUZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7492ARUZ-REEL7.pdf
- Description:
- IC ADC 12BIT SAR 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,150
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Product details
Overview
AD7492ARUZ-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 2.7 V to 5.25 V supply, delivers 70 dB typical SNR at 100 kHz input, and features parallel digital interface with no pipeline delay-used in high-speed data acquisition systems for industrial instrumentation and real-time sensor monitoring.
For engineers reviewing the AD7492ARUZ-REEL7 datasheet, AD7492ARUZ-REEL7 pinout, AD7492ARUZ-REEL7 application, or AD7492ARUZ-REEL7 equivalent, key selection considerations include its 680 ns conversion time, flexible VDRIVE-controlled I/O voltage levels, dual sleep modes (full/partial), 24-lead TSSOP package, and internal reference elimination of external component dependencies.
Technical Context
The AD7492ARUZ-REEL7 implements a capacitive DAC-based SAR architecture with track/hold amplifier supporting up to 10 MHz full-power bandwidth. Conversion is triggered by falling edge of CONVST, with BUSY signal indicating completion after 680 ns (AD7492-5 variant).
It uses VDRIVE to decouple digital I/O voltage levels from AVDD/DVDD-enabling 5 V analog core operation while interfacing to 3 V logic. Sleep mode selection (PS/FS pin) controls whether reference/oscillator remain active (partial) or fully powered down (full), enabling dynamic power scaling from 16.5 mW normal mode to 5 μW full sleep.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit-supports precise digitization of analog signals with 1 LSB = 610 μV at 2.5 V reference. |
| Throughput Rate | 1.25 MSPS-enables real-time sampling of fast transients in motor control or ultrasonic sensing. |
| Conversion Time | 680 ns max-guarantees deterministic latency critical for closed-loop timing-critical systems. |
| SNR @ 100 kHz | 68 dB min-ensures clean digitization of medium-frequency sensor outputs like vibration or audio-band signals. |
| Power Dissipation | 16.5 mW max at 1.25 MSPS, 5 V-achieves high speed without thermal derating in compact PCB layouts. |
| Reference Voltage | 2.5 V ±1.5%-internally generated and available at REF OUT pin for external circuit referencing. |
| Input Bandwidth | 10 MHz full-power-accepts wideband signals without external anti-aliasing filter complexity. |
Pinout & Package
AD7492ARUZ-REEL7 is housed in a 24-lead TSSOP package (RUZ suffix), thermally optimized with θJA = 115°C/W and compatible with standard surface-mount reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DB0–DB11 | Parallel digital output bus (LSB to MSB) | Three-state outputs driven by VDRIVE voltage-enables mixed-voltage system interfacing without level shifters. |
| CONVST | Conversion start trigger | Falling-edge initiated; duration determines sleep entry-supports burst-mode or continuous acquisition control. |
| BUSY | Conversion status indicator | High during conversion; falls 680 ns after CONVST-provides hardware-synchronized read timing. |
| CS / RD | Parallel interface access control | AND-gated inputs-allow direct microprocessor connection with no glue logic required. |
| PS/FS | Sleep mode selector | Hardware-configured pin-sets current draw to 250 μA (partial) or 1 μA (full) during idle periods. |
| REF OUT | Internal reference output | 2.5 V ±1.5%-supplies stable reference for external circuits or calibration sources. |
| VIN | Analog input channel | Single-ended, 0 V to 2.5 V range-requires no external buffer for low-impedance sources. |
| VDRIVE | Digital I/O supply rail | Independent 2.7–5.25 V rail-decouples logic interface voltage from analog/digital core supplies. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | True one-shot conversion with deterministic 680 ns latency-eliminates timing uncertainty in feedback loops. |
| Integrated clock oscillator | Removes need for external crystal or clock generator-reduces BOM count and layout area. |
| Flexible VDRIVE interface | Allows independent setting of digital I/O voltage-enables seamless integration with 3 V microcontrollers and 5 V analog front-ends. |
| Dual sleep modes | Full sleep (1 μA) and partial sleep (250 μA)-enables adaptive power management in battery-powered DAQ systems. |
| On-chip 2.5 V reference | Stable ±1.5% output with low drift-removes external reference IC and associated decoupling components. |
Applications
| Industrial Data Acquisition | Motor Control Feedback |
|---|---|
Use Scenario: High-speed sampling of current/voltage sensors in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Primary ADC capturing synchronized multi-channel waveforms at ≥1 MSPS for real-time FFT analysis. Use Value: 12-bit resolution and 10 MHz bandwidth enable accurate detection of harmonic distortion and transient faults in AC drives. |
Use Scenario: Closed-loop position and torque sensing in servo drives using resolver or Hall-effect feedback. IC Role / Device Role / Timing Role: Low-latency analog-to-digital conversion of motor phase currents with deterministic 680 ns conversion time. Use Value: No pipeline delay ensures immediate availability of sampled values for PWM update cycles, improving current loop stability. |
| Portable Test Equipment | Ultrasonic Sensing Systems |
Use Scenario: Battery-powered handheld oscilloscopes and multimeters requiring precision analog capture with minimal power overhead. IC Role / Device Role / Timing Role: Core ADC operating in partial sleep mode between triggers-waking only for acquisition bursts. Use Value: 250 μA partial sleep current extends runtime while maintaining sub-microsecond wake-up response for event-driven sampling. |
Use Scenario: Time-of-flight measurement in ultrasonic flow meters or proximity sensors with narrow pulse excitation. IC Role / Device Role / Timing Role: Digitizing high-frequency echo returns (up to 10 MHz) with 70 dB SNR at 100 kHz baseband. Use Value: Wide input bandwidth and low aperture jitter (15 ps typ) preserve signal integrity for precise time-domain analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit parallel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7492BRUZ | B-grade version with tighter INL (±1.25 LSB max vs. ±1.5 LSB) and same 1.25 MSPS throughput. | Preferred for metrology-grade instruments requiring enhanced DC accuracy over temperature. | Select AD7492BRUZ when integral nonlinearity < ±1.25 LSB is mandatory; otherwise AD7492ARUZ-REEL7 offers cost-optimized performance. |
| ADS7822U | 12-bit, 200 kSPS serial SPI ADC with internal reference-lower speed, smaller 8-pin SOIC package, no parallel bus. | Suitable for space-constrained, lower-throughput designs where microcontroller SPI interface is preferred over parallel bus. | Choose ADS7822U for simplified routing and reduced pin count; avoid if >1 MSPS or deterministic parallel read timing is required. |
Compared with AD7492BRUZ, AD7492ARUZ-REEL7 trades minor INL tolerance for broader commercial temperature range qualification and reel packaging; versus ADS7822U, it delivers 6× higher throughput and hardware-synchronized parallel access at the cost of larger footprint and higher pin count.
Availability
AD7492ARUZ-REEL7 is available at Aetrix Electronics and suitable for industrial data acquisition, motor control feedback, portable test equipment, and ultrasonic sensing applications requiring stable component supply, long-term production continuity, and RoHS-compliant TSSOP packaging.
Supply support for AD7492ARUZ-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 product line delivers high-speed, low-power SAR ADCs optimized for real-time industrial and instrumentation systems where deterministic latency, integrated references, and flexible power management are essential design requirements.
FAQ
What is the maximum sampling rate supported by AD7492ARUZ-REEL7?
The AD7492ARUZ-REEL7 supports a maximum throughput rate of 1.25 MSPS, corresponding to a 680 ns conversion time and 120 ns minimum track/hold acquisition time. This specification applies under VDD = 4.75 V to 5.25 V and TA = −40°C to +85°C conditions, as confirmed in the AD7492-5 variant datasheet section.
Does AD7492ARUZ-REEL7 require an external clock source?
No, AD7492ARUZ-REEL7 does not require an external clock source. It integrates an on-chip clock oscillator that determines the conversion rate. The internal clock eliminates dependency on external timing components and simplifies system-level clock tree design for the AD7492ARUZ-REEL7.
How does the PS/FS pin affect power consumption in AD7492ARUZ-REEL7?
The PS/FS pin on AD7492ARUZ-REEL7 selects between partial sleep mode (250 μA max) and full sleep mode (1 μA max) when CONVST remains low after conversion. In partial sleep, the internal reference and oscillator remain active; in full sleep, all analog circuitry powers down-enabling ultra-low quiescent current for duty-cycled applications using AD7492ARUZ-REEL7.
Can AD7492ARUZ-REEL7 interface directly with a 3 V microcontroller?
Yes, AD7492ARUZ-REEL7 can interface directly with a 3 V microcontroller via the VDRIVE pin. Setting VDRIVE = 3 V configures digital input thresholds (VINH/VINL) and output voltage levels (VOH/VOL) to match 3 V logic, while AVDD/DVDD may operate at 5 V to maximize analog performance-no level-shifting circuitry is needed for AD7492ARUZ-REEL7.
What is the function of the REF OUT pin on AD7492ARUZ-REEL7?
The REF OUT pin on AD7492ARUZ-REEL7 provides the internally generated 2.5 V reference voltage (±1.5% tolerance) for external use. It serves as a stable, low-drift reference for external circuitry such as sensor excitation, gain-setting resistors, or auxiliary ADCs-reducing system-level component count and improving overall measurement consistency for AD7492ARUZ-REEL7-based designs.
AD7492ARUZ-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):
- 1M
- 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:
- 2.7V ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 24-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7492ARUZ-REEL7 FAQ
1.How can I place an order for AD7492ARUZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7492ARUZ-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-REEL7 reliable?
The price and inventory of AD7492ARUZ-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-REEL7 is usually 5 days.
3.What payment methods are accepted for AD7492ARUZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7492ARUZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7492ARUZ-REEL7?
AD7492ARUZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7492ARUZ-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-REEL7?
For technical support, including AD7492ARUZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7492ARUZ-REEL7 requirements.
6.How does Aetrix verify that AD7492ARUZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7492ARUZ-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-REEL7 meets industry standards.
7.What is the process for return or replacement of AD7492ARUZ-REEL7?
All AD7492ARUZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7492ARUZ-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-REEL7 part is unused and in its original packaging.
Return procedure for AD7492ARUZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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