Datasheet LTC2313-12 (Analog Devices) - 9

LTC2313-12
BLOCK DIAGRAM
2.2µF 2.2µF ANALOG SUPPLY I/O INTERFACE SUPPLY 3V OR 5V RANGE 1.8V TO 5V 1 5 VDD OVDD 2.5V LDO A ANALOG IN INPUT RANGE 4 + THREE-STATE SDO 0V TO VREF SERIAL S/H 12-BIT SAR ADC 6 OUTPUT – PORT REF SCK 2 7 TIMING 2.2µF GND 1.024V CONV 2×/4× LOGIC 3 BANDGAP 8 TS8 PACKAGE 231312 BD ALL CAPACITORS UNLESS NOTED ARE HIGH QUALITY, CERAMIC CHIP TYPE
TIMING DIAGRAMS
t3 t8 CONV CONV OVDD/2 OVDD/2 Hi-Z V Hi-Z SDO MSB OH SDO VOL
Figure 1. SDO Enabled After CONV
↓
Figure 2. SDO Into Hi-Z After CONV
↑ 231312 TD01 231312 TD02 t7 t4 SCK SCK OVDD/2 OVDD/2 V V OH OH SDO V SDO OL VOL
Figure 3. SDO Data Valid Hold After SCK
↓
Figure 4. SDO Data Valid Access After SCK
↓ 231312 TD03 231312 TD04 231312fb For more information www.linear.com/LTC2313-12 9 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input/Output Digital Inputs And Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Applications Information Package Description Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input/Output Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Applications Information Applications Information Applications Information Applications Information Applications Information Package Description Revision History Typical Application Related Parts