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Analog Devices Inc. AD7714YRU
- Part No.:
- AD7714YRU
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7714YRU.pdf
- Description:
- IC ADC 24BIT SIGMA-DELTA 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,453
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Product details
Overview
AD7714YRU from Analog Devices is a 24-bit sigma-delta analog-to-digital converter with programmable gain front end (PGA), five-channel pseudo-differential or three-channel fully differential input capability, ±0.001% integral nonlinearity, and operation from +2.7 V to +3.3 V or +4.75 V to +5.25 V supplies. It delivers no missing codes performance up to 24 bits at filter notches ≤60 Hz and supports loop-powered industrial sensor interfaces.
For engineers reviewing the AD7714YRU datasheet, AD7714YRU pinout, AD7714YRU application, or AD7714YRU equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative options, and supply-chain support for high-reliability embedded measurement systems.
Technical Context
The AD7714YRU implements a charge-balancing sigma-delta ADC architecture with on-chip digital filtering, enabling programmable notch frequencies (e.g., 10 Hz, 50 Hz, 60 Hz) and selectable settling times. Its analog modulator feeds a first-order digital filter whose cutoff is controlled via the Filter High Register.
It integrates a five-channel analog input switching matrix configurable as three fully differential inputs or five pseudo-differential inputs, plus a dedicated differential reference input. The device supports self-, system-, and background calibration modes and allows read/write access to on-chip calibration coefficients for zero- and full-scale error correction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24-bit no missing codes (guaranteed at filter notches ≤60 Hz); enables direct digitization of microvolt-level transducer outputs without external amplification. |
| Integral Nonlinearity | ±0.001% FSR max (Y-grade); ensures <1 LSB error across full scale in precision weigh scale and pressure transducer applications. |
| Input Configuration | Five pseudo-differential or three fully differential analog inputs; eliminates need for external multiplexing or signal conditioning in multi-sensor systems. |
| Supply Range | +2.7 V to +3.3 V or +4.75 V to +5.25 V; supports both 3 V and 5 V industrial bus architectures and loop-powered 4–20 mA systems. |
| Power Consumption | 226 µA typ active current, 4 µA typ power-down current (at +3 V); enables battery-operated portable instrumentation with >1-year runtime. |
| Digital Interface | Three-wire SPI™/QSPI™/MICROWIRE™/DSP-compatible serial port; reduces isolation component count in safety-critical systems by minimizing interconnect lines. |
| Temperature Range | –40°C to +105°C; qualified for under-hood automotive sensors, industrial process controllers, and harsh-environment field instruments. |
Pinout & Package
AD7714YRU is housed in a 24-lead Thin Shrink Small Outline Package (TSSOP), 0.15 inch body width, 0.025 inch pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1–AIN6 | Analog input terminals | Supports five pseudo-differential (e.g., AIN1+/AIN1−, AIN2+/AIN2−, etc.) or three fully differential channel configurations; internal switching matrix routes selected pair to PGA. |
| REF IN(+), REF IN(–) | Differential reference input | Accepts 1.25 V (3 V AVDD) or 2.5 V (5 V AVDD) reference; sets full-scale range as VREF/GAIN; common-mode voltage must stay within AGND to AVDD. |
| AVDD, DVDD | Analog/digital power supplies | Separate AVDD (2.7–3.3 V or 4.75–5.25 V) and DVDD (2.7–5.25 V) rails enable noise isolation; AVDD powers analog front end, DVDD powers digital interface. |
| AGND, DGND | Analog/digital ground | Independent ground pins minimize digital switching noise coupling into sensitive analog conversion path; require star grounding at single point. |
| SCLK, DIN, DOUT, CS | Serial interface signals | Three-wire SPI-compatible interface; SCLK and DIN include Schmitt triggers for noise immunity in electrically noisy industrial environments. |
| DRDY | Data ready output | Open-drain output asserts low when conversion result is valid; synchronizes host MCU reads without polling overhead. |
| SYNC, RESET | Control inputs | SYNC initiates new conversion cycle; RESET performs hardware initialization-both critical for deterministic timing in closed-loop control systems. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable gain front end (1× to 128×) | Enables direct connection of low-output transducers (e.g., strain gauges, RTDs) without external op-amps, reducing BOM cost and board area. |
| On-chip calibration registers | Allows user read/write of zero- and full-scale coefficients, enabling field recalibration without hardware modification or firmware update. |
| Filter notch programming | Configurable digital filter notches at 10 Hz, 25 Hz, 30 Hz, 50 Hz, 60 Hz, and 100 Hz eliminate line-frequency interference without external analog filters. |
| Low-noise analog path (<150 nV rms) | Supports 24-bit resolution in high-precision applications such as laboratory-grade weighing and medical sensor interfaces. |
| Power-down mode (4 µA typical) | Reduces standby power to <15 µW, extending battery life in portable handheld instruments and remote wireless sensor nodes. |
Applications
| Portable Weigh Scales | Loop-Powered Systems |
|---|---|
Use Scenario: Battery-powered handheld scales used in logistics and retail requiring sub-gram resolution over 10 kg range. IC Role / Device Role / Timing Role: Primary ADC performing signal conditioning and digitization of load cell mV outputs with integrated PGA and digital filtering. Use Value: Eliminates external instrumentation amplifier and anti-aliasing filter; 24-bit resolution and 0.001% INL ensure NTEP Class III compliance. |
Use Scenario: 4–20 mA current-loop transmitters for pressure or temperature sensing in hazardous industrial zones. IC Role / Device Role / Timing Role: Low-power, high-accuracy ADC core interfacing directly with bridge sensors and feeding microcontroller for HART modulation. Use Value: 226 µA typical supply current enables full functionality within 3.5 mA loop budget; Schmitt-triggered SCLK/DIN improves noise immunity in EMI-heavy plants. |
| Pressure Transducers | Smart Industrial Instruments |
Use Scenario: OEM pressure modules for HVAC and process control requiring stable offset and gain over –40°C to +105°C. IC Role / Device Role / Timing Role: Precision ADC with on-chip self-calibration and temperature drift compensation (0.1 µV/°C offset drift at G≥8). Use Value: Reduces factory calibration labor; 105°C rating supports operation near steam valves and motors without derating. |
Use Scenario: Programmable logic controller (PLC) analog input modules needing multi-channel, isolated sensor acquisition. IC Role / Device Role / Timing Role: Channel-multiplexed ADC with background calibration and SPI interface for real-time data streaming to ARM-based controller. Use Value: Five pseudo-differential inputs reduce channel count per IC; three-wire interface minimizes optocoupler usage in galvanically isolated designs. |
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 |
|---|---|---|---|
| AD7190BRUZ | 24-bit, 4.8 kHz output rate, built-in PGA (1–128), 50/60 Hz rejection, but requires external reference; no Schmitt triggers on digital inputs. | Better suited for high-speed continuous acquisition (e.g., vibration monitoring); lacks AD7714YRU's extended temperature grade and integrated reference flexibility. | Select AD7190BRUZ when higher throughput (>4.8 kSPS) is required and external reference is acceptable. |
| ADS1256IPW | 24-bit, 30 kSPS, integrated oscillator, but only four differential inputs; no on-chip calibration registers; operates down to 2.7 V but rated only to +85°C. | Optimized for data loggers with fast sampling; lacks AD7714YRU's 105°C rating, programmable filter notches, and system calibration capability. | Select ADS1256IPW when higher sample rate and integrated clock are priorities, and ambient temperature stays below 85°C. |
Compared with AD7714YRU, AD7190BRUZ offers faster conversion but sacrifices extended temperature qualification and Schmitt-triggered robustness, while ADS1256IPW trades calibration flexibility and industrial-grade thermal performance for raw speed-making AD7714YRU optimal for ultra-stable, field-deployable measurement nodes.
Availability
AD7714YRU is available at Aetrix Electronics and suitable for portable industrial instruments, loop-powered transmitters, and smart sensor modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for AD7714YRU 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD7714YRU belongs to Analog Devices' precision sigma-delta ADC product line, engineered specifically for low-frequency, high-accuracy sensor signal conditioning in demanding industrial and instrumentation applications.
FAQ
What is the maximum operating temperature for the AD7714YRU?
The AD7714YRU is rated for continuous operation from –40°C to +105°C, making it suitable for under-hood automotive sensors, industrial process controllers, and outdoor environmental monitoring equipment where ambient temperatures exceed standard commercial-grade limits. This extended range is a defining feature of the Y-grade variant and is explicitly guaranteed in the AD7714Y datasheet revision C.
Does the AD7714YRU support both 3 V and 5 V operation simultaneously?
Yes-the AD7714YRU supports dual-supply operation with AVDD ranging from +2.7 V to +3.3 V or +4.75 V to +5.25 V, and DVDD from +2.7 V to +5.25 V. This allows independent selection of analog and digital rail voltages, enabling interoperability with both 3 V microcontrollers and legacy 5 V backplanes without level-shifting circuitry.
How does the AD7714YRU achieve 24-bit no missing codes performance?
The AD7714YRU achieves guaranteed 24-bit no missing codes through its charge-balancing sigma-delta architecture combined with an on-chip digital filter whose first notch is programmable. At filter notches ≤60 Hz, the device maintains full 24-bit resolution with no code gaps, as verified by Analog Devices' design guarantee-not just typical performance-enabling true high-fidelity digitization of slow-varying sensor signals.
Can the AD7714YRU perform system calibration without external equipment?
Yes-the AD7714YRU supports system calibration using its internal reference and programmable gain stages. By applying known input voltages (within ±1.05 × VREF/GAIN), users can execute system calibration via the serial interface and store resulting coefficients in on-chip registers. This eliminates dependency on external precision sources during field maintenance or factory setup.
What package type is used for the AD7714YRU and why is it preferred for industrial designs?
The AD7714YRU uses a 24-lead Thin Shrink Small Outline Package (TSSOP, RU-24). Its 0.15-inch body width and 0.025-inch pitch provide high I/O density in compact layouts while maintaining manufacturability with standard SMT reflow processes. The RU package also offers improved thermal dissipation over SOIC variants-critical for sustained operation at +105°C in sealed enclosures.
AD7714YRU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7714YRU FAQ
1.How can I place an order for AD7714YRU through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7714YRU 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 AD7714YRU reliable?
The price and inventory of AD7714YRU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7714YRU is usually 5 days.
3.What payment methods are accepted for AD7714YRU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7714YRU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7714YRU?
AD7714YRU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7714YRU 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 AD7714YRU?
For technical support, including AD7714YRU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7714YRU requirements.
6.How does Aetrix verify that AD7714YRU is sourced from the original manufacturer or authorized distributors?
All AD7714YRU 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 AD7714YRU meets industry standards.
7.What is the process for return or replacement of AD7714YRU?
All AD7714YRU units undergo pre-shipment inspection (PSI). If there is an issue with AD7714YRU, 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 AD7714YRU part is unused and in its original packaging.
Return procedure for AD7714YRU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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