Analog Devices Inc. AD7714YNZ

Overview

AD7714YNZ 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, 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 - enabling high-precision signal conditioning in portable industrial instruments and loop-powered systems.

For engineers reviewing the AD7714YNZ datasheet, AD7714YNZ pinout, AD7714YNZ application, or AD7714YNZ equivalent, this page provides verified technical context, real-world design meaning of key specs, validated package and pin functions, confirmed alternatives for thermal or supply-voltage-constrained designs, and supply-chain support for volume production.

Technical Context

The AD7714YNZ implements a charge-balancing sigma-delta architecture with an on-chip modulator and programmable digital filter whose first notch frequency is software-configurable - directly determining cutoff frequency and settling time. Its front end supports gains of 1–128 across five analog inputs, configurable as either three fully differential or five pseudo-differential channels.

It features Schmitt-triggered SCLK and DIN inputs for robust noise immunity, self/system/background calibration modes, and a three-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™. Power consumption is optimized for low-power operation: 226 µA typical active current and only 4 µA typical standby current at 3 V.

Key Specifications

Pinout & Package

AD7714YNZ is housed in a 24-lead TSSOP package (RU-24 footprint), 4.4 mm × 7.8 mm, 0.65 mm pitch, with exposed thermal pad (EP). Pinout conforms to Analog Devices' standard AD7714Y layout.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-precision sigma-delta ADC applications.

Compared with AD7190BRUZ and ADS124S08IPW, AD7714YNZ uniquely balances ultra-low standby power (4 µA), industry-standard 50/60 Hz rejection, and dual-voltage operation - making it the preferred choice for retrofitting existing 3 V/5 V industrial sensor platforms requiring minimal layout change and guaranteed thermal stability up to +105°C.

Availability

AD7714YNZ is available at Aetrix Electronics and suitable for portable industrial instruments, loop-powered transmitters, and pressure transducer modules requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for AD7714YNZ 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.

The AD7714Y series was designed specifically for low-frequency, high-accuracy measurement applications - targeting portable instrumentation, industrial process control, and sensor signal conditioning where resolution, noise, and thermal stability are critical.

FAQ

What is the maximum operating temperature for AD7714YNZ?

The AD7714YNZ is rated for continuous operation from –40°C to +105°C. This extended temperature range is explicitly specified for the Y-grade version and validated per Analog Devices' AD7714Y datasheet Rev. C. It enables deployment in under-hood automotive sensors, industrial motor drives, and outdoor environmental monitoring systems where ambient temperatures exceed +85°C limits of standard A-grade variants.

Does AD7714YNZ support both 3 V and 5 V supply rails simultaneously?

Yes - AD7714YNZ supports independent AVDD and DVDD supplies: AVDD accepts either +2.7 V to +3.3 V or +4.75 V to +5.25 V, while DVDD operates from +2.7 V to +5.25 V. This allows mixed-rail system integration, such as connecting AVDD to a precision 3.3 V LDO for analog performance while tying DVDD to a shared 5 V system bus - all within a single AD7714YNZ device.

How does the AD7714YNZ achieve 100 dB+ 50/60 Hz rejection?

The AD7714YNZ achieves >100 dB normal-mode 50/60 Hz rejection through its programmable digital filter architecture: the first notch frequency is software-configurable (e.g., 10 Hz, 25 Hz, 50 Hz, 60 Hz), and rejection depth exceeds 100 dB at ±0.02×fNOTCH. This is implemented in silicon and guaranteed by design - no external components or calibration are required to meet this specification in AD7714YNZ-based systems.

Can AD7714YNZ be used with a 1.25 V reference voltage?

Yes - when AVDD is operated at +2.7 V to +3.3 V, AD7714YNZ is specified for use with a 1.25 V reference (REF IN(+) – REF IN(–) = 1.25 V ±1%). This reference voltage sets the full-scale input range as ±VREF/GAIN for bipolar mode, and the device maintains all performance specifications including 24-bit no missing codes and ±0.0010% linearity error under these conditions.

What is the purpose of the Schmitt-triggered SCLK and DIN inputs on AD7714YNZ?

The Schmitt-triggered SCLK and DIN inputs on AD7714YNZ provide hysteresis (e.g., VT+ = 1.0–2.5 V, VT– = 0.4–1.1 V depending on DVDD) to reject high-frequency noise and slow edge rates on digital control lines. This improves robustness in electrically noisy industrial environments - such as PLC backplanes or motor drive cabinets - where signal integrity cannot be guaranteed by layout alone, and eliminates need for external RC filtering on those pins.