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Analog Devices Inc. AD7714YRZ-REEL7
- Part No.:
- AD7714YRZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AD7714YRZ-REEL7.pdf
- Description:
- IC ADC 24BIT SIGMA-DELTA 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:191
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Product details
Overview
AD7714YRZ-REEL7 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 on-chip digital filtering. It delivers 0.0010% linearity error, <150 nV rms noise, and operates from +2.7 V to +3.3 V or +4.75 V to +5.25 V across –40°C to +105°C. It is used in high-precision industrial weighing systems and loop-powered transducer interfaces.
For engineers reviewing the AD7714YRZ-REEL7 datasheet, AD7714YRZ-REEL7 pinout, AD7714YRZ-REEL7 application, or AD7714YRZ-REEL7 equivalent, key selection considerations include its 24-bit no-missing-codes performance, Schmitt-triggered serial interface inputs (SCLK/DIN), TSSOP-24 package, and support for self/system/background calibration in microcontroller-based signal conditioning systems.
Technical Context
The AD7714YRZ-REEL7 implements a charge-balancing sigma-delta ADC architecture with a proprietary analog modulator and on-chip digital filter featuring programmable notch frequencies (e.g., 10 Hz–1 kHz). Its front end includes a 5-channel switching matrix configurable as three differential or five pseudo-differential inputs, plus dedicated differential reference inputs (REF IN(+) and REF IN(–)).
It supports three-wire SPI™/QSPI™/MICROWIRE™/DSP-compatible serial communication with DRDY, CS, SCLK, DIN, and DOUT signals. Calibration modes-self, system, and background-are software-configurable via register writes, and calibration coefficients can be read/written directly to internal registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| No Missing Codes | 24 bits minimum at filter notches ≤60 Hz - guarantees monotonicity and full resolution for precision weigh-scale and sensor digitization. |
| Integral Nonlinearity | ±0.0010% of FSR max - enables high-accuracy endpoint measurement without external trimming in portable instrumentation. |
| Input Noise | <150 nV rms - supports sub-microvolt-level signal resolution from strain gauges and pressure transducers. |
| Operating Supply | +2.7 V to +3.3 V or +4.75 V to +5.25 V - dual-voltage compatibility simplifies integration into both 3 V and 5 V industrial control systems. |
| Temperature Range | –40°C to +105°C - qualified for under-hood automotive sensors and high-ambient industrial environments. |
| Power-Down Current | 4 µA typ at +3 V - enables ultra-low-power operation in battery-backed or energy-harvested field devices. |
| Serial Interface | SPI/QSPI/MICROWIRE/DSP compatible, Schmitt-triggered SCLK/DIN - improves noise immunity in electrically noisy factory-floor wiring. |
Pinout & Package
AD7714YRZ-REEL7 is housed in a 24-lead TSSOP (Thin Shrink Small Outline Package), 0.15 inch body width, lead pitch 0.65 mm, RoHS-compliant, tape-and-reel format (REEL7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVDD | Analog Power Supply | Provides power to analog section; must be decoupled locally to minimize noise coupling into sigma-delta modulator. |
| DVDD | Digital Power Supply | Supplies digital core and serial interface; separate from AVDD to prevent digital switching noise from degrading ADC SNR. |
| AGND / DGND | Analog & Digital Ground | Must be connected at single point near device; separation prevents ground bounce from corrupting low-level analog measurements. |
| REF IN(+), REF IN(–) | Differential Reference Inputs | Accepts 1.25 V (3 V supply) or 2.5 V (5 V supply) reference; defines full-scale range and determines absolute input voltage limits. |
| AIN1–AIN6 | Analog Input Terminals | Configurable as three differential pairs (AIN1/AIN2, AIN3/AIN4, AIN5/AIN6) or five pseudo-differential channels (AIN1–AIN5 vs AGND). |
| SCLK, DIN, DOUT, CS, DRDY | Serial Interface Signals | Three-wire synchronous interface with data-ready flag; Schmitt-triggered SCLK/DIN ensures robust timing in noisy environments. |
| SYNC, RESET | Control Inputs | SYNC initiates synchronized conversions across multiple AD7714YRZ-REEL7 devices; RESET performs hardware initialization. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Gain Front End (Gains 1–128) | Eliminates need for external op-amp gain stages when interfacing low-output transducers like load cells and RTDs. |
| On-Chip Digital Filter with Programmable Notch | Enables rejection of 50/60 Hz mains interference without external analog filters - critical for field-deployed instrumentation. |
| Self-, System-, and Background Calibration | Removes zero- and full-scale errors over temperature and time; background mode allows continuous correction during normal operation. |
| Transducer Burnout Detection | 1 µA nominal current source per channel detects open-circuit sensors - essential for predictive maintenance in industrial monitoring. |
| Low-Power Standby Mode | Reduces current to 4 µA (3 V) or 18 µA (5 V), enabling rapid wake-up in duty-cycled sensor nodes. |
Applications
| Portable Weigh Scales | Pressure Transducers |
|---|---|
Use Scenario: Battery-powered handheld scales measuring 0.1 g resolution over 30 kg range using strain gauge bridges. IC Role / Device Role / Timing Role: Primary signal conditioner and digitizer; performs PGA amplification, sigma-delta conversion, and digital filtering before sending data to MCU via SPI. Use Value: 24-bit no-missing-codes resolution and 0.0010% linearity ensure legal-for-trade accuracy without post-conversion linearization. | Use Scenario: 4–20 mA loop-powered pressure transmitter in oil & gas wellhead monitoring. IC Role / Device Role / Timing Role: High-precision ADC front end accepting mV-level bridge output; provides calibrated digital output to loop controller. Use Value: Integrated burnout detection and 105°C rating enable reliable operation in high-temperature downhole enclosures. |
| Loop-Powered Systems | Smart Industrial Sensors |
Use Scenario: Two-wire 4–20 mA field instrument with local display and HART communication. IC Role / Device Role / Timing Role: Low-power ADC capturing sensor data while consuming <500 µA total supply current to stay within loop budget. Use Value: 226 µA typical active current and 4 µA standby current allow headroom for microcontroller, display, and comms ICs. | Use Scenario: DIN-rail mounted condition monitoring node measuring vibration, temperature, and current on rotating machinery. IC Role / Device Role / Timing Role: Multi-channel ADC acquiring synchronized samples from accelerometer, thermistor, and shunt resistor inputs. Use Value: Five pseudo-differential inputs and programmable filter cutoffs support simultaneous acquisition of diverse sensor types with optimal noise rejection per channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision sigma-delta ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7190BRUZ | 32-bit resolution, lower noise (8.5 nV rms), but larger 32-lead TSSOP package and higher supply current (490 µA typ). | Better suited for laboratory-grade metrology; less ideal for space-constrained portable instruments. | Select AD7190BRUZ only if >24-bit resolution and sub-10 nV noise are required and PCB area permits larger footprint. |
| ADS1256IDBT | 24-bit, 30 kSPS, SPI interface, but lacks integrated PGA and burnout detection; requires external gain stage. | Targeted at higher-speed data acquisition where PGA flexibility is handled externally. | Choose ADS1256IDBT when system already includes precision op-amps and demands faster throughput than AD7714YRZ-REEL7's 100–1000 SPS range. |
Compared with AD7714YRZ-REEL7, AD7190BRUZ offers higher resolution and lower noise at the cost of increased power and board area, while ADS1256IDBT trades integrated signal conditioning for speed and simplicity - making AD7714YRZ-REEL7 optimal for compact, low-power, self-contained industrial sensor nodes requiring embedded PGA and diagnostics.
Availability
AD7714YRZ-REEL7 is available at Aetrix Electronics and suitable for portable industrial instruments, loop-powered transmitters, and high-temperature sensor modules requiring stable component supply and long-term manufacturability.
Supply support for AD7714YRZ-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, founded in 1965 and headquartered in Wilmington, MA.
The AD7714 product line was designed specifically for high-accuracy, low-power, multi-channel sensor signal conditioning in industrial, instrumentation, and process control applications - emphasizing integrated calibration, noise immunity, and flexible input configuration.
FAQ
What is the maximum sampling rate of the AD7714YRZ-REEL7?
The AD7714YRZ-REEL7 achieves up to 1,000 samples per second (SPS) at gain = 1 and filter notch = 1 kHz. At lower notch frequencies (e.g., 10 Hz), the effective output data rate drops to ~10 SPS to maintain 24-bit resolution and noise rejection. The exact rate depends on selected gain, filter configuration, and master clock frequency (up to 2.4576 MHz).
Does the AD7714YRZ-REEL7 support both unipolar and bipolar input ranges?
Yes, the AD7714YRZ-REEL7 supports both unipolar (0 to +VREF/GAIN) and bipolar (±VREF/GAIN) input ranges, selected via the B/U bit in the Filter High register. This allows direct digitization of AC-coupled sensor outputs or DC-coupled bridge measurements without external level-shifting circuitry.
How does the AD7714YRZ-REEL7 handle reference voltage requirements?
The AD7714YRZ-REEL7 accepts a differential reference voltage of +1.25 V (for 2.7–3.3 V AVDD) or +2.5 V (for 4.75–5.25 V AVDD), with ±1% tolerance for specified performance. The reference inputs (REF IN(+) and REF IN(–)) must remain within AGND to AVDD, and the device functions with lower references, though specifications may degrade.
Can the AD7714YRZ-REEL7 operate with an external crystal oscillator?
Yes, the AD7714YRZ-REEL7 supports external clock sources including crystals or ceramic resonators connected between MCLK IN and MCLK OUT. When using a crystal, DVDD current and power dissipation vary by resonator type; the internal oscillator remains active in standby mode unless disabled via CLKDIS bit.
What calibration modes are available on the AD7714YRZ-REEL7?
The AD7714YRZ-REEL7 provides three calibration modes: self-calibration (zeros and full-scale), system calibration (using external known reference), and background calibration (continuous zero-scale correction during normal operation). All modes are software-controlled via register writes and support reading/writing of calibration coefficients.
AD7714YRZ-REEL7 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:
- 2.7V ~ 3.3V, 5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- PGA
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- 24-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7714YRZ-REEL7 FAQ
1.How can I place an order for AD7714YRZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7714YRZ-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 AD7714YRZ-REEL7 reliable?
The price and inventory of AD7714YRZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7714YRZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD7714YRZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7714YRZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7714YRZ-REEL7?
AD7714YRZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7714YRZ-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 AD7714YRZ-REEL7?
For technical support, including AD7714YRZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7714YRZ-REEL7 requirements.
6.How does Aetrix verify that AD7714YRZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7714YRZ-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 AD7714YRZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD7714YRZ-REEL7?
All AD7714YRZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7714YRZ-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 AD7714YRZ-REEL7 part is unused and in its original packaging.
Return procedure for AD7714YRZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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