Datasheet

LTC2480
15
2480fe
For more information www.linear.com/LTC2480
APPLICATIONS INFORMATION
CS
SDO
Hi-Z
SIGDMY
BIT 21
MSB B16
CONVERSION RESULT
BIT 20 BIT 19 BIT 18
LSB
BIT 4
GS2
BIT 3
GS0GS1
BIT 1 BIT 0
IM
BIT 2BIT 22
SCK
SDI
SLEEP DATA INPUT/OUTPUT
BIT 23
EOC
EN GS2 GS1 GS0 IM FBFA SPD DON’T CARE
CONVERSION
2480 F02
PREVIOUS
CONFIGURATION BITS
Figure 2. Input/Output Data Timing
Table 1. Selecting Special Modes
EN GS2 GS1
Gain
Any Gain
2480 TBL1
Any
Speed
Any
Rejection
Mode
GS0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
0
0
1
0
1
0
0
1
1
0
1
0
1
0
0
1
1
IM FA FB SPD Comments
Keep Previous Mode
External Input, Gain = 1, Autocalibration
External Input, Gain = 4, Autocalibration
External Input, Gain = 8, Autocalibration
External Input, Gain = 16, Autocalibration
External Input, Gain = 32, Autocalibration
External Input, Gain = 64, Autocalibration
External Input, Gain = 128, Autocalibration
External Input, Gain = 256, Autocalibration
External Input, Gain = 1, 2x Speed
External Input, Gain = 2, 2x Speed
External Input, Gain = 4, 2x Speed
External Input, Gain = 8, 2x Speed
External Input, Gain = 16, 2x Speed
External Input, Gain = 32, 2x Speed
External Input, Gain = 64, 2x Speed
External Input, Gain = 128, 2x Speed
External Input, Simultaneous 50Hz/60Hz Rejection
External Input, 50Hz Rejection
External Input, 60Hz Rejection
Reserved, Do Not Use
Temperature Input, 50Hz/60Hz Rejection, Gain = 1, Autocalibration
Temperature Input, 50Hz Rejection, Gain = 1, Autocalibration
Temperature Input, 60Hz Rejection, Gain = 1, Autocalibration
Reserved, Do Not Use
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
X
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
X
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
X
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
X X X
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Rejection
Mode