Datasheet AD5749 (Analog Devices) - 10

AD5749 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 0.005 0.010 4mA TO 20mA EXTERNAL RSET RESISTOR 4mA TO 20mA INTERNAL RSET LINEARITY 0.004 0mA TO 24mA EXTERNAL RSET RESISTOR 0.008 0mA TO 24mA INTERNAL RSET LINEARITY ) R) R 0.003 S S 0.006 F F % % ( 0.002 ( 0.004 Y Y T T 0.001 ARI 0.002 ARI E E IN 0 IN L 0 N NL O –0.001 NO –0.002 N AL AL R –0.002 R –0.004 G G E E T –0.003 T –0.006 IN IN –0.004 –0.008 –0.005 –0.010
8 0 5 0
020 293 585 878 170 463 755 048 341 633 926 218 511 803 096
0
24V 48V 55V
0 3-
0. 0. 0. 0. 1. 1. 1. 2. 2. 2. 2. 3. 3. 3. 4.
3-
SUPPLY VOLTAGE (AVDD)
92 92 08
VIN (V)
08 Figure 5. Integral Nonlinearity Error vs. VIN, External RSET Resistor Figure 8. Integral Nonlinearity Current Mode, Internal RSET Sense Resistor
0.005 0.05 4mA TO 20mA INTERNAL RSET RESISTOR 4mA TO 20mA EXTERNAL RSET TUE 0.004 0mA TO 24mA INTERNAL RSET RESISTOR 0.04 0mA TO 24mA EXTERNAL RSET TUE R) R) S S 0.003 F 0.03 F % (% 0.002 R ( Y 0.02 O T R 0.001 R ARI 0.01 E E D IN E 0 L T 0 N S O –0.001 N –0.01 RAL –0.002 –0.02 G UNADJU E L T A –0.003 T –0.03 IN O T –0.004 –0.04 –0.005 0 3 5 8 0 3 5 8 1 3 6 8 1 3 6 –0.05 0 3 5 8 0 3 5 8 1 3 6 8 1 3 6
6 9
02 29 58 87 17 46 75 04 34 63 92 21 51 80 09
0 0 0
02 29 58 87 17 46 75 04 34 63 92 21 51 80 09
0
0. 0. 0. 0. 1. 1. 1. 2. 2. 2. 2. 3. 3. 3. 4.
3-
0. 0. 0. 0. 1. 1. 1. 2. 2. 2. 2. 3. 3. 3. 4.
3- 92 92
V V IN (V)
08
IN (V)
08 Figure 6. Integral Nonlinearity Error vs. VIN, Internal RSET Resistor Figure 9. Total Unadjusted Error vs. VIN, External RSET Resistor
0.010 0.05 4mA TO 20mA EXTERNAL RSET LINEARITY 4mA TO 20mA INTERNAL RSET TUE 0.008 0mA TO 24mA EXTERNAL RSET LINEARITY 0.04 0mA TO 24mA INTERNAL RSET TUE ) R) R S 0.006 F 0.03 FS % % ( 0.004 R ( 0.02 O ITY R R R 0.002 A 0.01 E E D IN E L 0 T 0 N S O –0.002 N –0.01 L A –0.004 –0.02 GR UNADJU L TE A –0.006 T –0.03 IN O T –0.008 –0.04 –0.010
7
–0.05
0
0 3 5 8 0 3 5 8 1 3 6 8 1 3 6 24V 48V 55V
0 0 3-
02 29 58 87 17 46 75 04 34 63 92 21 51 80 09
1 0
SUPPLY VOLTAGE (AVDD)
92
0. 0. 0. 0. 1. 1. 1. 2. 2. 2. 2. 3. 3. 3. 4.
3- 08 92
VIN (V)
08 Figure 7. Integral Nonlinearity Current Mode, External RSET Sense Resistor Figure 10. Total Unadjusted Error vs. VIN, Internal RSET Resistor Rev. D | Page 10 of 28 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY TIMING CHARACTERISTICS Timing Diagrams ESD CAUTION SOFTWARE MODE CURRENT OUTPUT ARCHITECTURE DRIVING INDUCTIVE LOADS POWER-ON STATE OF THE AD5749 DEFAULT REGISTERS AT POWER-ON RESET FUNCTION OUTEN SOFTWARE CONTROL Input Shift Register Status Bit Read Operation HARDWARE CONTROL TRANSFER FUNCTION OUTPUT FAULT ALERT—SOFTWARE MODE OUTPUT FAULT ALERT—HARDWARE MODE ASYNCHRONOUS CLEAR (CLEAR) EXTERNAL CURRENT SETTING RESISTOR PROGRAMMABLE OVERRANGE MODES PACKET ERROR CHECKING TRANSIENT VOLTAGE PROTECTION THERMAL CONSIDERATIONS LAYOUT GUIDELINES GALVANICALLY ISOLATED INTERFACE MICROPROCESSOR INTERFACING ORDERING GUIDE