AD7719
PRODUCTIONLow Voltage, Low Power, 16-/24-Bit, Dual Sigma Delta ADC
- Part Models
- 3
- 1ku List Price
- Starting From $13.11
Part Details
- 2 Independent ADCs (16- and 24-Bit Resolution)
- Factory-Calibrated (Field Calibration Not Required)
- Output Settles in 1 Conversion Cycle (Single Conversion Mode)
- Programmable Gain Front End
- Simultaneous Sampling and Conversion of 2 Signal Sources
- Separate Reference Inputs for Each Channel
- Simultaneous 50 Hz and 60 Hz Rejection at 20 Hz Update Rate ISOURCE SELECT™
- 24-Bit No Missing Codes—Main ADC
- 13-Bit p-p Resolution @ 20 Hz, 20 mV Range
- 18-Bit p-p Resolution @ 20 Hz, 2.56 V Range INTERFACE
- 3-Wire Serial
- SPI®, QSPI™, MICROWIRE™, and DSP Compatible
- Schmitt Trigger on SCLK
The AD7719 is a complete analog front-end for low frequency measurement applications. It contains two high-resolution sigma delta ADCs, switchable matched excitation current sources, low-side power switches, digital I/O port and temperature sensor. The 24-bit main channel with PGA accepts fully differential, unipolar and bipolar input signal ranges from REFIN1/128 to REFIN1. Signals can be converted directly from a transducer without the need for signal conditioning. The 16-bit aux channel does not have a PGA and has an input signal range of REFIN2 or REFIN2/2.
Documentation
Data Sheet 1
Application Note 13
Technical Articles 4
Evaluation Design File 1
Analog Dialogue 2
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 |
|---|---|---|---|
| AD7719BRUZ | 28-Lead TSSOP (4.4mm x 9.7mm) | ||
| AD7719BRUZ-REEL7 | 28-Lead TSSOP (4.4mm x 9.7mm) | ||
| AD7719BRZ | 28-Lead SOIC (Wide) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 11, 2011 - 10_0005 Halogen Free Material Change for TSSOP Products Assembled at Amkor |
||
| AD7719BRUZ | PRODUCTION | |
| AD7719BRUZ-REEL7 | PRODUCTION | |
|
Feb 7, 2011 - 10_0003 Halogen Free Material Change for SOIC Wide Body Products Assembled at Amkor |
||
| AD7719BRZ | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 1
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| AD7124-8 | RECOMMENDED FOR NEW DESIGNS | 8-Channel, Low Noise, Low Power, 24-Bit, Sigma-Delta ADC with PGA and Reference |
Tools & Simulations
Sigma-Delta ADC Tutorial
An interactive illustration showing the behavior of an idealized sigma-delta A/D converter.
Open ToolEvaluation Kits
AD7719 Evaluation Board