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Analog Devices Inc. AD7714ARZ-3REEL
- Part No.:
- AD7714ARZ-3REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AD7714ARZ-3REEL.pdf
- Description:
- IC ADC 24BIT SIGMA-DELTA 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,751
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Product details
Overview
AD7714ARZ-3REEL from Analog Devices is a 24-bit sigma-delta analog-to-digital converter (ADC) with integrated programmable-gain amplifier (PGA), five-channel pseudo-differential or three-channel fully differential input architecture, and 3 V single-supply operation. It delivers 0.0015% integral nonlinearity, <150 nV rms input noise, and supports filter notch frequencies down to 10 Hz - ideal for high-precision industrial weigh scales and loop-powered pressure transducers.
For engineers reviewing the AD7714ARZ-3REEL datasheet, AD7714ARZ-3REEL pinout, AD7714ARZ-3REEL application, or AD7714ARZ-3REEL equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives, and supply-chain support for production deployment in low-power, high-accuracy measurement systems.
Technical Context
The AD7714ARZ-3REEL implements a charge-balancing sigma-delta ADC architecture with on-chip digital filtering, enabling up to 24-bit no-missing-codes resolution at output data rates from 10 Hz to 1 kHz. Its programmable gain front end (GAIN = 1–128) directly interfaces strain gauges and transducers without external signal conditioning.
It features a three-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™ protocols, plus Schmitt-triggered SCLK/DIN inputs for noise immunity. The device supports self-, system-, and background calibration modes, and allows read/write access to on-chip calibration coefficients for field-trimmed accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24-bit no missing codes (guaranteed ≤60 Hz filter notch); enables ±1 ppm-level measurement fidelity in precision weighing and sensor monitoring |
| Integral Nonlinearity | ±0.0015% FSR max (≤60 Hz notch); ensures linearity error remains under 1 LSB across full-scale range for calibrated industrial instrumentation |
| Input Noise | <150 nV rms (typical); supports sub-µV-level signal resolution in low-level transducer applications like bridge-based pressure sensors |
| Supply Voltage | +3.0 V to +3.6 V AVDD; enables direct integration into 3 V loop-powered systems without level-shifting or LDO overhead |
| Power Consumption | 0.27 mA AVDD current (typ), 1.05 mW total dissipation at 3 V/1 MHz; meets strict power budgets in battery- or energy-harvesting–enabled portable instruments |
| Filter Notch Range | Programmable from 10 Hz to 1 kHz; allows rejection of 50/60 Hz mains interference while optimizing settling time for dynamic process control loops |
| Input Configuration | Five pseudo-differential or three fully differential analog inputs; eliminates need for external multiplexers or differential receivers in multi-sensor data acquisition |
Pinout & Package
AD7714ARZ-3REEL is housed in a 24-lead TSSOP package (RU-24 footprint, 0.15 mm pitch, 7.8 mm × 4.4 mm body). Pin functions are validated per Analog Devices AD7714 datasheet Rev. C, Figure 1 and Table VII.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1–AIN6 | Analog Input Channels | Supports five pseudo-differential (e.g., AIN1+/AIN1−, AIN2+/AIN2−, etc.) or three fully differential pairs; configurable via SETUP register |
| REF IN(+), REF IN(−) | Differential Reference Input | Accepts 1.25 V reference (AD7714-3); sets full-scale range as ±VREF/GAIN; enables ratiometric measurement with stable excitation sources |
| AVDD, DGND, AGND | Analog & Digital Power/Ground | Separate analog/digital ground pins reduce coupling noise; AVDD powers modulator and PGA; DGND supplies digital core and I/O |
| SCLK, DIN, DOUT, CS | Three-Wire Serial Interface | Full-duplex SPI-compatible interface; Schmitt-triggered SCLK/DIN (Y-grade) improves noise margin in noisy industrial environments |
| DRDY | Data Ready Output | Open-drain flag signals valid conversion result; synchronizes host MCU reads without polling; supports interrupt-driven firmware design |
| SYNC, RESET | System Control Inputs | SYNC initiates synchronized conversions across multiple AD7714ARZ-3REEL devices; RESET performs hardware initialization |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Gain Front End (GAIN = 1–128) | Eliminates external op-amp stages for microvolt-level sensor outputs - reduces BOM count, board area, and thermal drift contributors |
| On-Chip Calibration Registers | Enables field recalibration without hardware modification; stores zero-scale, full-scale, and gain coefficients for temperature-compensated operation |
| 50/60 Hz Notch Filtering | Guarantees ≥100 dB normal-mode rejection at line frequency - critical for EMI-prone factory-floor installations without external notch filters |
| Low-Power Standby Mode | 10 µA typical standby current at 3 V; extends battery life in portable diagnostics tools and handheld test equipment |
| Transducer Burnout Detection | 1 µA nominal burnout current with ±10% tolerance - detects open-circuit sensors in safety-critical pressure or load monitoring systems |
Applications
| Portable Weigh Scales | Loop-Powered Pressure Transmitters |
|---|---|
|
Use Scenario: Battery-operated handheld scale measuring 0–30 kg with 1 g resolution under variable ambient temperature. IC Role / Device Role / Timing Role: Primary signal conditioner and ADC; digitizes mV-level output from 350 Ω strain gauge bridge with 128× PGA gain and 10 Hz filter notch. Use Value: 24-bit no missing codes and 0.0015% INL ensure true 1 g repeatability without software linearization; 0.27 mA active current enables >12-month battery life on two AA cells. |
Use Scenario: 4–20 mA HART-enabled pressure transmitter mounted on oil pipeline with –40°C to +85°C operating range. IC Role / Device Role / Timing Role: High-accuracy ADC for bridge sensor excitation and digitization; interfaces to microcontroller via 3-wire SPI under tight power budget. Use Value: Integrated PGA accepts raw bridge output directly; 150 nV rms noise and 100 dB 50/60 Hz rejection maintain accuracy despite EMI from nearby VFDs and motors. |
| Smart Industrial Sensors | Portable Multifunction Test Equipment |
|
Use Scenario: DIN-rail-mounted temperature/pressure combo sensor with isolated RS-485 output and local calibration capability. IC Role / Device Role / Timing Role: Dual-channel ADC subsystem handling both RTD and piezoresistive inputs; uses background calibration to maintain accuracy over temperature. Use Value: On-chip calibration registers allow firmware to store and reload coefficients during field recalibration; 24-lead TSSOP fits compact isolation barrier layouts. |
Use Scenario: Handheld multimeter with simultaneous voltage/current/resistance measurement and data logging to SD card. IC Role / Device Role / Timing Role: Precision ADC for DC voltage and current shunt measurements; configured for bipolar ±2.5 V input range with 16× gain. Use Value: Programmable filter cutoffs (10–1000 Hz) let firmware optimize speed vs. noise for each measurement mode; DRDY pin enables deterministic sampling timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution sigma-delta ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7793BRUZ | 24-bit, 16-bit effective resolution at 4.17 Hz; lower power (400 µA typ), integrated 2.5 V reference, but only 3 differential inputs and no burnout current source | Better suited for ultra-low-power battery systems where reference integration outweighs need for 5-channel flexibility | Select AD7793BRUZ when reference stability and power are prioritized over channel count and transducer diagnostics |
| ADS124S08IPWR | 24-bit, 4 kSPS max; integrated PGA (1–128), 2.5 V reference, burnout current, but requires external clock and lacks Schmitt-triggered inputs | Targeted at high-speed sensor hubs with integrated microcontroller clocking; less robust in electrically noisy environments | Choose ADS124S08IPWR for cost-sensitive designs needing faster throughput and internal reference, but verify EMI immunity separately |
Compared with AD7714ARZ-3REEL, AD7793BRUZ trades channel count and diagnostic features for lower power and reference integration, while ADS124S08IPWR offers higher speed and similar PGA/burnout capability but requires external clock management and lacks Schmitt-triggered I/O for industrial noise resilience.
Availability
AD7714ARZ-3REEL is available at Aetrix Electronics and suitable for portable industrial instruments, loop-powered systems, and high-accuracy sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD7714ARZ-3REEL 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 Wilmington, MA, with design centers worldwide.
The AD7714 product line was engineered for low-frequency, high-accuracy measurement front ends - targeting industrial process control, precision weighing, and sensor signal conditioning where resolution, noise, and calibration integrity are critical.
FAQ
What is the maximum recommended master clock frequency for AD7714ARZ-3REEL?
The AD7714ARZ-3REEL supports a master clock (MCLK IN) frequency from 400 kHz to 2.5 MHz. For optimal performance at 3 V operation, Analog Devices specifies 2.4576 MHz as the standard clock rate used in characterization. Exceeding 2.5 MHz may degrade INL and noise performance, and is not guaranteed across temperature or process corners.
Does AD7714ARZ-3REEL support both unipolar and bipolar input ranges?
Yes, AD7714ARZ-3REEL supports both unipolar (0 to +VREF/GAIN) and bipolar (±VREF/GAIN) input ranges. The mode is selected via the B/U bit in the Filter High register. Bipolar mode enables true differential measurement of AC-coupled or centered sensor outputs, while unipolar mode suits ratiometric bridge or thermocouple applications with offset removal.
How does the transducer burnout detection function work in AD7714ARZ-3REEL?
The AD7714ARZ-3REEL integrates a 1 µA (±10% typ) constant-current burnout source that can be enabled on any analog input channel. When activated, it pulls the input above or below common-mode range, causing the ADC output to saturate - indicating an open-circuit sensor. This feature is programmable per channel and operates independently of conversion cycles.
Can AD7714ARZ-3REEL operate with a 1.25 V reference voltage?
Yes, AD7714ARZ-3REEL is the -3 variant and is specified for use with a 1.25 V reference (REF IN(+) – REF IN(–) = 1.25 V ±1%). This matches its 3 V supply architecture and enables accurate ratiometric measurement when paired with 1.25 V excitation sources for resistive sensors or bridges.
What package type is used for AD7714ARZ-3REEL?
AD7714ARZ-3REEL uses a 24-lead thin shrink small outline package (TSSOP), also designated RU-24 in Analog Devices' ordering guide. It measures 7.8 mm × 4.4 mm with 0.65 mm lead pitch and is RoHS-compliant. This package supports automated assembly and provides thermal and mechanical reliability for industrial surface-mount applications.
AD7714ARZ-3REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 24
- Sampling Rate (Per Second):
- 1k
- Number of Inputs:
- 3, 5
- Input Type:
- Differential, Pseudo-Differential
- Data Interface:
- SPI, DSP
- Configuration:
- MUX-PGA-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External
- Voltage - Supply, Analog:
- 3V ~ 3.6V
- Voltage - Supply, Digital:
- 3V ~ 5.25V
- Features:
- PGA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 24-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7714ARZ-3REEL FAQ
1.How can I place an order for AD7714ARZ-3REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7714ARZ-3REEL 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 AD7714ARZ-3REEL reliable?
The price and inventory of AD7714ARZ-3REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7714ARZ-3REEL is usually 5 days.
3.What payment methods are accepted for AD7714ARZ-3REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7714ARZ-3REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7714ARZ-3REEL?
AD7714ARZ-3REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7714ARZ-3REEL 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 AD7714ARZ-3REEL?
For technical support, including AD7714ARZ-3REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7714ARZ-3REEL requirements.
6.How does Aetrix verify that AD7714ARZ-3REEL is sourced from the original manufacturer or authorized distributors?
All AD7714ARZ-3REEL 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 AD7714ARZ-3REEL meets industry standards.
7.What is the process for return or replacement of AD7714ARZ-3REEL?
All AD7714ARZ-3REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD7714ARZ-3REEL, 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 AD7714ARZ-3REEL part is unused and in its original packaging.
Return procedure for AD7714ARZ-3REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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