Datasheet LTC2453 (Analog Devices) - 10

LTC2453
APPLICATIONS INFORMATION
1 7 8 9 1 2 3 8 9 1 2 3 8 9 SCL 7-BIT SDA R D15 D14 D13 D8 ADDRESS D7 D6 D5 D0 (SGN) MSB LSB START BY ACK BY ACK BY NACK BY MASTER LTC2453 MASTER MASTER SLEEP DATA OUTPUT CONVERSION 2453 F04
Figure 4. Read Sequence Timing Diagram Table 1. LTC2453 Output Data Format. FS = V + - REF – VREF . DIFFERENTIAL INPUT D15 D0 CORRESPONDING VOLTAGE V + - IN - VIN (MSB) D14 D13 D12 ... D2 D1 (LSB) DECIMAL VALUE
≥FS 1 1 1 1 1 1 65535 FS - 1LSB 1 1 1 1 1 0 65534 0.5 • FS 1 1 0 0 0 0 49152 0.5 • FS - 1LSB 1 0 1 1 1 1 49151 0 1 0 0 0 0 0 32768 -1LSB 0 1 1 1 1 1 32767 -0.5 • FS 0 1 0 0 0 0 16384 -0.5 • FS - 1LSB 0 0 1 1 1 1 16383 ≤-FS 0 0 0 0 0 0 0 7-BIT ADDRESS S (0010100) R ACK READ P CONVERSION SLEEP DATA OUTPUT CONVERSION 2453 F05
Figure 5. The LTC2453 Coversion Sequence
S 7-BIT ADDRESS R ACK READ P S 7-BIT ADDRESS R ACK READ P (0010100) (0010100) CONVERSION SLEEP DATA OUTPUT CONVERSION SLEEP DATA OUTPUT CONVERSION 2453 F06
Figure 6. Consecutive Reading at the Same Configuration
S 7-BIT ADDRESS R ACK READ (OPTIONAL) P (0010100) CONVERSION SLEEP DATA OUTPUT CONVERSION 2453 F07
Figure 7. Start a New Conversion without Reading Old Conversion Result
2453fc 10 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Analog Inputs And References Power Requirements I2C Inputs And Outputs I2C Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Application Package Description Revision History Related Parts