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Analog Devices Inc. AD7715ARUZ-5REEL7
- Part No.:
- AD7715ARUZ-5REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7715ARUZ-5REEL7.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,880
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Product details
Overview
AD7715ARUZ-5REEL7 from Analog Devices is a 16-bit sigma-delta analog-to-digital converter optimized for low-frequency precision measurement. It integrates a programmable-gain amplifier (gains 1/2/32/128), differential analog and reference inputs, on-chip digital filtering with programmable notch frequency, and a three-wire SPI-compatible serial interface. It operates from a 5 V analog supply (AVDD) and supports unipolar/bipolar input ranges up to ±2.5 V, targeting strain gauge and sensor front-end applications.
For engineers reviewing the AD7715ARUZ-5REEL7 datasheet, AD7715ARUZ-5REEL7 pinout, AD7715ARUZ-5REEL7 application, or AD7715ARUZ-5REEL7 equivalent, key selection criteria include guaranteed 16-bit no-missing-codes performance, ±0.0015% integral nonlinearity, 450 µA max supply current at 3 V, 50 Hz/60 Hz normal-mode rejection ≥98 dB, and TSSOP-16 packaging for space-constrained industrial sensing designs.
Technical Context
The AD7715ARUZ-5REEL7 implements a charge-balancing sigma-delta architecture with an on-chip Σ-Δ modulator followed by a programmable digital filter whose first notch sets output update rate and line-frequency rejection. Its analog front end includes a PGA with four discrete gain settings and configurable input buffering (BUF bit).
It features dual power domains (AVDD/DVDD), differential AIN(+) and AIN(−) inputs referenced to AGND, and separate REF IN(+) and REF IN(−) pins accepting 2.5 V nominal reference voltage. The device supports self-calibration and system calibration to eliminate offset and gain errors across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit no missing codes - guarantees monotonicity and full code coverage for precision measurement systems. |
| Integral Nonlinearity | ±0.0015% of FSR - enables high-accuracy weight scales and pressure transducers without external linearization. |
| Supply Current | 450 µA maximum at 3 V AVDD - supports battery-powered or energy-efficient industrial nodes. |
| Input Rejection | 98 dB normal-mode 50/60 Hz rejection - eliminates mains interference in factory-floor instrumentation. |
| Programmable Gain | Gains of 1, 2, 32, 128 - allows direct connection to mV-level sensors like load cells without external amplification. |
| Digital Interface | Three-wire SPI/QSPI/MICROWIRE/DSP-compatible - reduces PCB routing complexity and isolation component count. |
| Operating Voltage | AVDD = 4.75 V to 5.25 V - ensures stable operation across industrial 5 V rail tolerances. |
Pinout & Package
AD7715ARUZ-5REEL7 is housed in a 16-lead TSSOP package (RUZ suffix), 4.4 mm × 5.0 mm body, 0.65 mm pitch, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCLK | Serial clock input | Controls timing of data transfers; compatible with SPI master clocks up to 2.4576 MHz. |
| MCLK IN | Master clock input | Accepts external CMOS clock or crystal/resonator (1–2.4576 MHz); required for ADC conversion timing. |
| MCLK OUT | Master clock output | Drives crystal/resonator when used in oscillator mode; left unconnected for external clock source. |
| CS | Chip select input | Active-low enables serial communication; supports multi-device bus sharing. |
| DIN | Serial data input | Loads configuration register bits (setup, communications, test) during write operations. |
| DOUT | Serial data output | Transmits conversion results and register readbacks; tri-state when CS is high. |
| DRDY | Data ready output | Active-low signal indicates valid conversion result available in data register. |
| RESET | Hardware reset input | Pulse ≥100 ns resets internal registers and initiates power-on calibration sequence. |
| AIN(+) | Differential analog input (+) | Accepts buffered/unbuffered signals; common-mode range extends from AGND to AVDD − 1.5 V. |
| AIN(−) | Differential analog input (−) | Serves as reference point for bipolar ranges (±20 mV to ±2.5 V) and unipolar offsets. |
| REF IN(+) | Reference input (+) | Accepts 2.5 V nominal reference (±1%) for AD7715-5 variants; defines full-scale range. |
| REF IN(−) | Reference input (−) | Connected to AGND; establishes reference ground for ratiometric measurements. |
| AVDD | Analog supply | 5 V ±2.5% supply powering PGA, modulator, and analog filter; decoupling required near pin. |
| DVDD | Digital supply | 3 V to 5.25 V supply for serial interface and digital logic; may be independent of AVDD. |
| AGND | Analog ground | Return path for analog circuitry; must be separated from DGND and connected at single point. |
| DGND | Digital ground | Return path for digital I/O; isolated from AGND to minimize noise coupling into analog path. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip calibration | Self- and system-calibration modes remove zero-scale and full-scale errors without external equipment. |
| Programmable digital filter | First-notch frequency selectable via register to optimize update rate (e.g., 16.7 Hz @ 50 Hz notch) and noise rejection. |
| Differential input architecture | Rejects common-mode noise up to 150 dB at 50/60 Hz, critical for noisy industrial environments. |
| Low-power standby mode | Reduces current to 10 µA typical at 3.3 V, enabling rapid wake-up in duty-cycled sensor nodes. |
| Buffered/unbuffered input option | BUF bit enables internal buffer for high-impedance sources (e.g., thermocouples), avoiding external op-amps. |
Applications
| Pressure Measurement | Temperature Monitoring |
|---|---|
|
Use Scenario: Digital pressure transmitter measuring 0–100 psi using a silicon piezoresistive bridge. IC Role / Device Role / Timing Role: Front-end ADC digitizing mV-level bridge output with PGA gain = 128 and 50 Hz notch filtering. Use Value: Eliminates external instrumentation amplifier and anti-aliasing filter; achieves <550 nV rms noise and ±0.0015% linearity over −40°C to +85°C. |
Use Scenario: Industrial oven controller reading Pt100 RTD via 4-wire configuration. IC Role / Device Role / Timing Role: Precision ratiometric ADC using REF IN(+) tied to excitation voltage; bipolar mode captures negative offsets. Use Value: Enables direct RTD voltage digitization with 16-bit resolution and built-in cold-junction compensation support via software calibration. |
| Smart Transmitter | Weigh Scale System |
|
Use Scenario: HART-enabled 4–20 mA loop-powered transmitter with microcontroller host. IC Role / Device Role / Timing Role: Isolated analog front end interfacing to MCU via optocoupled SPI lines; low 450 µA supply current minimizes loop burden. Use Value: Reduces component count by integrating PGA, filter, and serial interface-enabling single-chip sensor signal conditioning. |
Use Scenario: Platform scale with four 1 mV/V load cells in Wheatstone bridge configuration. IC Role / Device Role / Timing Role: High-precision ADC with gain = 32, 60 Hz notch, and system calibration to compensate for cable resistance drift. Use Value: Delivers true 16-bit resolution with no missing codes and <0.5 µV/°C zero-drift-meeting OIML R76 Class III accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision sigma-delta ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7714BRUZ | 16-bit, 5-channel multiplexed input; higher 1.25 mA supply current; same TSSOP-24 package. | Supports multi-sensor systems (e.g., simultaneous temp/pressure/humidity); not single-channel optimized. | Select AD7714BRUZ only when multi-input acquisition is required; AD7715ARUZ-5REEL7 offers lower power and smaller footprint for dedicated single-channel use. |
| ADS124S08IPW | 24-bit, 4-channel, integrated PGA and reference; 350 µA typical supply current; SPI interface; TSSOP-20. | Higher resolution but lacks 50/60 Hz notch programming flexibility; requires external reference for full spec compliance. | Choose ADS124S08IPW for ultra-high-resolution applications where 24-bit depth outweighs notch configurability; AD7715ARUZ-5REEL7 remains optimal for cost-sensitive 16-bit industrial metering. |
Compared with AD7714BRUZ and ADS124S08IPW, AD7715ARUZ-5REEL7 delivers the lowest system BOM cost for single-channel 16-bit measurement, with unique programmable digital filter notch control enabling precise line-frequency rejection without external components.
Availability
AD7715ARUZ-5REEL7 is available at Aetrix Electronics and suitable for industrial process control, smart sensor transmitters, and precision weigh scale systems requiring stable component supply and long-term manufacturability.
Supply support for AD7715ARUZ-5REEL7 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, headquartered in Norwood, MA, serving industrial, automotive, communications, and healthcare markets.
AD7715ARUZ-5REEL7 belongs to Analog Devices' precision sigma-delta ADC product line, designed specifically for low-frequency, high-accuracy sensor signal conditioning in harsh industrial environments.
FAQ
What is the operating voltage range for AD7715ARUZ-5REEL7?
AD7715ARUZ-5REEL7 requires AVDD = 4.75 V to 5.25 V for analog circuitry and supports DVDD = 3 V to 5.25 V for digital I/O. The -5 suffix confirms 5 V operation; it is not rated for 3 V AVDD. Exceeding these limits risks damage per Absolute Maximum Ratings (Table 5).
Does AD7715ARUZ-5REEL7 support both unipolar and bipolar input configurations?
Yes, AD7715ARUZ-5REEL7 supports both modes via the B/U bit in the setup register. Unipolar ranges include 0 mV to 20 mV and 0 V to 2.5 V; bipolar ranges include ±20 mV and ±2.5 V, all referenced to AIN(−). Input polarity and range are software-configurable without hardware changes.
How does the digital filter notch frequency affect AD7715ARUZ-5REEL7 performance?
The first notch of AD7715ARUZ-5REEL7's on-chip digital filter is programmable to reject 50 Hz or 60 Hz interference. Setting notch = 50 Hz yields 98 dB normal-mode rejection and 16.7 Hz output update rate; notch = 60 Hz gives identical rejection with 13.9 Hz update rate-critical for stable readings in AC-powered facilities.
Can AD7715ARUZ-5REEL7 operate with an external crystal oscillator?
Yes, AD7715ARUZ-5REEL7 supports crystal/resonator operation: connect the crystal between MCLK IN and MCLK OUT pins. It is characterized for 1 MHz and 2.4576 MHz crystals. External CMOS clocks are also supported on MCLK IN alone, with MCLK OUT left open.
What calibration options are available on AD7715ARUZ-5REEL7?
AD7715ARUZ-5REEL7 provides self-calibration (zero- and full-scale) and system calibration (zero- and full-scale) modes accessible via serial interface. Calibration removes gain and offset errors; recalibration at temperature eliminates drift effects, achieving <0.5 µV/°C zero-drift after system calibration.
AD7715ARUZ-5REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 500
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI, DSP
- Configuration:
- PGA-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 3V ~ 5.25V
- Features:
- PGA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7715ARUZ-5REEL7 FAQ
1.How can I place an order for AD7715ARUZ-5REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7715ARUZ-5REEL7 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 AD7715ARUZ-5REEL7 reliable?
The price and inventory of AD7715ARUZ-5REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7715ARUZ-5REEL7 is usually 5 days.
3.What payment methods are accepted for AD7715ARUZ-5REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7715ARUZ-5REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7715ARUZ-5REEL7?
AD7715ARUZ-5REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7715ARUZ-5REEL7 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 AD7715ARUZ-5REEL7?
For technical support, including AD7715ARUZ-5REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7715ARUZ-5REEL7 requirements.
6.How does Aetrix verify that AD7715ARUZ-5REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7715ARUZ-5REEL7 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 AD7715ARUZ-5REEL7 meets industry standards.
7.What is the process for return or replacement of AD7715ARUZ-5REEL7?
All AD7715ARUZ-5REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7715ARUZ-5REEL7, 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 AD7715ARUZ-5REEL7 part is unused and in its original packaging.
Return procedure for AD7715ARUZ-5REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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