Datasheet AD7787 (Analog Devices) - 3
| Fabricante | Analog Devices |
| Descripción | Low Power, 2-Channel 24-Bit Sigma-Delta ADC |
| Páginas / Página | 21 / 3 — AD7787. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY. 3/13—Rev. 0 to … |
| Revisión | A |
| Formato / tamaño de archivo | PDF / 364 Kb |
| Idioma del documento | Inglés |
AD7787. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY. 3/13—Rev. 0 to Rev. A. 4/04—Revision 0: Initial Version
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AD7787 Data Sheet TABLE OF CONTENTS
Specifications ... 3 Overview ... 14 Timing Characteristics ... 5 Noise Performance ... 14 Absolute Maximum Ratings .. 7 Reduced Current Modes ... 14 ESD Caution .. 7 Digital Interface .. 15 Pin Configuration and Function Descriptions ... 8 Circuit Description... 18 Typical Performance Characteristics ... 9 Analog Input Channel ... 18 On-Chip Registers .. 10 Bipolar/Unipolar Configuration .. 18 Communications Register (RS1, RS0 = 0, 0) .. 10 Data Output Coding .. 18 Status Register (RS1, RS0 = 0, 0; Power-On/Reset Reference Input ... 18 = 0×8C) .. 11 VDD Monitor .. 19 Mode Register (RS1, RS0 = 0, 1; Power-On/Reset = 0×02) ... 12 Grounding and Layout .. 19 Filter Register (RS1, RS0 = 1, 0; Power-On/Reset Applications .. 19 = 0×04) ... 13 Outline Dimensions ... 20 Data Register (RS1, RS0 = 1, 1; Power-On/Reset Ordering Guide .. 20 = 0×000000) .. 13 ADC Circuit Information .. 14
REVISION HISTORY 3/13—Rev. 0 to Rev. A
Changes to Figure 13 ... 15 Change to Reference Input Section ... 18 Updated Outline Dimensions .. 20 Changes to Ordering Guide ... 20
4/04—Revision 0: Initial Version
Rev. A | Page 2 of 20 Document Outline Specifications Timing Characteristics Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics On-Chip Registers Communications Register (RS1, RS0 = 0, 0) Status Register (RS1, RS0 = 0, 0; Power-On/Reset = 0×8C) Mode Register (RS1, RS0 = 0, 1; Power-On/Reset = 0×02) Filter Register (RS1, RS0 = 1, 0; Power-On/Reset = 0×04) Data Register (RS1, RS0 = 1, 1; Power-On/Reset = 0×000000) ADC Circuit Information Overview Noise Performance Reduced Current Modes Digital Interface Single Conversion Mode Continuous Conversion Mode Continuous Read Mode Circuit Description Analog Input Channel Bipolar/Unipolar Configuration Data Output Coding Reference Input VDD Monitor Grounding and Layout Applications Battery Monitoring Outline Dimensions Ordering Guide
AD7787 Data Sheet TABLE OF CONTENTS
Specifications ... 3 Overview ... 14 Timing Characteristics ... 5 Noise Performance ... 14 Absolute Maximum Ratings .. 7 Reduced Current Modes ... 14 ESD Caution .. 7 Digital Interface .. 15 Pin Configuration and Function Descriptions ... 8 Circuit Description... 18 Typical Performance Characteristics ... 9 Analog Input Channel ... 18 On-Chip Registers .. 10 Bipolar/Unipolar Configuration .. 18 Communications Register (RS1, RS0 = 0, 0) .. 10 Data Output Coding .. 18 Status Register (RS1, RS0 = 0, 0; Power-On/Reset Reference Input ... 18 = 0×8C) .. 11 VDD Monitor .. 19 Mode Register (RS1, RS0 = 0, 1; Power-On/Reset = 0×02) ... 12 Grounding and Layout .. 19 Filter Register (RS1, RS0 = 1, 0; Power-On/Reset Applications .. 19 = 0×04) ... 13 Outline Dimensions ... 20 Data Register (RS1, RS0 = 1, 1; Power-On/Reset Ordering Guide .. 20 = 0×000000) .. 13 ADC Circuit Information .. 14
REVISION HISTORY 3/13—Rev. 0 to Rev. A
Changes to Figure 13 ... 15 Change to Reference Input Section ... 18 Updated Outline Dimensions .. 20 Changes to Ordering Guide ... 20
4/04—Revision 0: Initial Version
Rev. A | Page 2 of 20 Document Outline Specifications Timing Characteristics Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics On-Chip Registers Communications Register (RS1, RS0 = 0, 0) Status Register (RS1, RS0 = 0, 0; Power-On/Reset = 0×8C) Mode Register (RS1, RS0 = 0, 1; Power-On/Reset = 0×02) Filter Register (RS1, RS0 = 1, 0; Power-On/Reset = 0×04) Data Register (RS1, RS0 = 1, 1; Power-On/Reset = 0×000000) ADC Circuit Information Overview Noise Performance Reduced Current Modes Digital Interface Single Conversion Mode Continuous Conversion Mode Continuous Read Mode Circuit Description Analog Input Channel Bipolar/Unipolar Configuration Data Output Coding Reference Input VDD Monitor Grounding and Layout Applications Battery Monitoring Outline Dimensions Ordering Guide