AD7714
PRODUCTIONCMOS, 3V/5V, 500 µA, 24-Bit Sigma-Delta, Signal Conditioning ADC
- Part Models
- 18
- 1ku List Price
- Starting From $14.29
Part Details
- Charge Balancing ADC
24 Bits No Missing Codes
0.0015% Nonlinearity - Five-Channel Programmable Gain Front End
Gains from 1 to 128
Can Be Configured as Three Fully Differential
Inputs or Five Pseudo-Differential Inputs - Three-Wire Serial Interface
SPI®, QSPI™, MICROWIRE™ and DSP Compatible - 3 V (AD7714-3) or 5 V (AD7714-5) Operation
- Low Current (350 µA typ) with Power-Down (5 µA typ)
- Low Noise (<150 nV rms)
- Low-Pass Filter with Programmable Filter Cutoffs
- Please see data sheet for additional features
The AD7714 is a complete analog front end for low-frequency measurement applications. The device accepts low level signals directly from a transducer and outputs a serial digital word. It employs a sigma-delta conversion technique to realize up to 24 bits of no missing codes performance. The input signal is applied to a proprietary programmable gain front end based around an analog modulator. The modulator output is processed by an on-chip digital filter. The first notch of this digital filter can be programmed via the on-chip control register allowing adjustment of the filter cutoff and settling time.
The part features three differential analog inputs (which can also be configured as five pseudo-differential analog inputs) as well as a differential reference input. The AD7714 thus performs all signal conditioning and conversion for a system consisting of up to five channels. A new Y grade has recently been added to the existing range. Compared to the A grades this new grade has an extended operating temperature range, schmitt trigger inputs on SCLK and DIN, tighter linearity specifications, lower power consumption and is available in a smaller package.
The AD7714 is ideal for use in smart microcontroller- or DSP-based systems. It features a serial interface that can be configured for three-wire operation. Gain settings, signal polarity and channel selection can be configured in software using the serial port. The AD7714 provides self-calibration, system calibration and background calibration options and also allows the user to read and write the on-chip calibration registers.
CMOS construction ensures very low power dissipation, and the power-down mode reduces the standby power consumption to 15 µW typical at 3 V. Minimum operating voltage for the A grades is 3 V and 2.7 V for the Y grades. The A grades are available in a 24-pin, 0.3 inch-wide, plastic dual-in-line package (DIP); a 24 lead small outline (SOIC) package and a 28-lead shrink small outline package (SSOP). The new Y grade is available in a 24-pin, 0.3 inch-wide, plastic dual-in-line package (DIP); a 24 lead small outline (SOIC) package and a 24-lead Thin Shrink Small Outline Package (TSSOP).
Documentation
Data Sheet 1
User Guide 1
Application Note 9
Technical Articles 4
Frequently Asked Question 1
Analog Dialogue 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7714ACHIPS-3 | none available | ||
| AD7714ACHIPS-5 | none available | ||
| AD7714ANZ-5 | 24-Lead PDIP | ||
| AD7714ARSZ-3 | 28-Lead SSOP | ||
| AD7714ARSZ-3REEL | 28-Lead SSOP | ||
| AD7714ARSZ-5 | 28-Lead SSOP | ||
| AD7714ARSZ-5REEL | 28-Lead SSOP | ||
| AD7714ARZ-3 | 24-Lead SOIC (Wide) | ||
| AD7714ARZ-3REEL | 24-Lead SOIC (Wide) | ||
| AD7714ARZ-5 | 24-Lead SOIC (Wide) | ||
| AD7714ARZ-5REEL | 24-Lead SOIC (Wide) | ||
| AD7714YNZ | 24-Lead PDIP | ||
| AD7714YRUZ | 24-Lead TSSOP | ||
| AD7714YRUZ-REEL | 24-Lead TSSOP | ||
| AD7714YRUZ-REEL7 | 24-Lead TSSOP | ||
| AD7714YRZ | 24-Lead SOIC (Wide) | ||
| AD7714YRZ-REEL | 24-Lead SOIC (Wide) | ||
| AD7714YRZ-REEL7 | 24-Lead SOIC (Wide) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 21, 2023 - 23_0082 Qualification of Alternate Wafer Fab Site at ADI Limerick for Select ADC Products |
||
| AD7714ACHIPS-3 | ||
| AD7714ACHIPS-5 | ||
| AD7714ANZ-5 | PRODUCTION | |
| AD7714ARSZ-3 | PRODUCTION | |
| AD7714ARSZ-3REEL | PRODUCTION | |
| AD7714ARSZ-5 | PRODUCTION | |
| AD7714ARSZ-5REEL | PRODUCTION | |
| AD7714ARZ-3 | PRODUCTION | |
| AD7714ARZ-3REEL | PRODUCTION | |
| AD7714ARZ-5 | PRODUCTION | |
| AD7714ARZ-5REEL | PRODUCTION | |
| AD7714YNZ | PRODUCTION | |
| AD7714YRUZ | PRODUCTION | |
| AD7714YRUZ-REEL | PRODUCTION | |
| AD7714YRUZ-REEL7 | PRODUCTION | |
| AD7714YRZ | PRODUCTION | |
| AD7714YRZ-REEL | PRODUCTION | |
| AD7714YRZ-REEL7 | PRODUCTION | |
|
Feb 8, 2010 - 04_0080 Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland. |
||
| AD7714ACHIPS-3 | ||
| AD7714ACHIPS-5 | ||
| AD7714ARZ-5 | PRODUCTION | |
| AD7714ARZ-5REEL | PRODUCTION | |
|
Mar 7, 2019 - 19_0046 Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek |
||
| AD7714ANZ-5 | PRODUCTION | |
| AD7714YNZ | PRODUCTION | |
|
Aug 19, 2009 - 07_0024 Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad |
||
| AD7714ANZ-5 | PRODUCTION | |
| AD7714YNZ | PRODUCTION | |
|
Aug 25, 2010 - 10_0065 Halogen Free Material Change for SSOP Products at Carsem |
||
| AD7714ARSZ-3 | PRODUCTION | |
| AD7714ARSZ-3REEL | PRODUCTION | |
| AD7714ARSZ-5 | PRODUCTION | |
| AD7714ARSZ-5REEL | PRODUCTION | |
|
Feb 7, 2011 - 10_0003 Halogen Free Material Change for SOIC Wide Body Products Assembled at Amkor |
||
| AD7714ARZ-3 | PRODUCTION | |
| AD7714ARZ-3REEL | PRODUCTION | |
| AD7714ARZ-5 | PRODUCTION | |
| AD7714ARZ-5REEL | PRODUCTION | |
| AD7714YRZ | PRODUCTION | |
| AD7714YRZ-REEL | PRODUCTION | |
| AD7714YRZ-REEL7 | PRODUCTION | |
|
Aug 10, 2021 - 21_0035 Amkor Philippines as an Alternate Site for TSSOP_4.4 |
||
| AD7714YRUZ | PRODUCTION | |
| AD7714YRUZ-REEL | PRODUCTION | |
| AD7714YRUZ-REEL7 | PRODUCTION | |
|
Feb 11, 2011 - 10_0005 Halogen Free Material Change for TSSOP Products Assembled at Amkor |
||
| AD7714YRUZ | PRODUCTION | |
| AD7714YRUZ-REEL | PRODUCTION | |
| AD7714YRUZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
AD7714 Code Examples 1
Evaluation Software 0
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| isoPower 3 | ||
| ADUM5401 | PRODUCTION | Quad-Channel, 2.5 kV Isolators with Integrated DC-to-DC Converter (3/1 channel directionality) |
| ADUM5402 | PRODUCTION | Quad-Channel, 2.5 kV Isolators with Integrated DC-to-DC Converter (2/2 channel directionality) |
| ADUM5403 | PRODUCTION | Quad-Channel, 2.5 kV Isolators with Integrated DC-to-DC Converter (1/3 channel directionality) |
| Series Voltage References 2 | ||
| REF43 | NOT RECOMMENDED FOR NEW DESIGNS | +2.5V Low Power Precision Voltage Reference |
| REF192 | PRODUCTION | 2.5V Precision Micropower, Low Dropout, Low Voltage Reference |
| Shunt Voltage References 4 | ||
| AD780 | PRODUCTION | 2.5 V/3.0 V High Precision Reference |
| AD589 | NOT RECOMMENDED FOR NEW DESIGNS | Two-Terminal IC 1.2 V Reference |
| AD1580 | PRODUCTION | 1.2 V Micropower, Precision Shunt Voltage Reference |
| ADR512 | PRODUCTION | 1.2 V Precision Low Noise Shunt Voltage Reference |
| Standard Digital Isolators 5 | ||
| ADUM7440 | PRODUCTION | 1 kV RMS Quad-Channel Digital Isolator |
| ADUM7441 | PRODUCTION | 1 kV RMS Quad-Channel Digital Isolator |
| ADUM7442 | PRODUCTION | 1 kV RMS Quad-Channel Digital Isolator |
| ADUM1400 | PRODUCTION | Quad-Channel Digital Isolator (4/0 Channel Directionality) |
| ADUM1200 | PRODUCTION | Dual-Channel Digital Isolator (2/0 Channel Directionality) |
| USB Isolators 1 | ||
| ADUM4160 | PRODUCTION | Full/Low Speed USB Digital Isolator |
| Parts | Product Life Cycle | Description |
|---|---|---|
| AD7124-4 | RECOMMENDED FOR NEW DESIGNS | 4-Channel, Low Noise, Low Power, 24-Bit, Sigma-Delta ADC with PGA and Reference |
Tools & Simulations
Design Tool 1
Sigma-Delta ADC Tutorial
An interactive illustration showing the behavior of an idealized sigma-delta A/D converter.
Open ToolEvaluation Kits
AD7714 Evaluation Kit