Datasheet

MAX1454
Precision Sensor Signal Conditioner
with Overvoltage Protection
16Maxim Integrated
Table 8. Bridge Driver Current-Mirror
Ratio Setting (CMRATIO[1:0])
Table 7. Input-Referred Offset Setting (IRO Sign, IRO[3:0])
Table 9. DAC Refresh Rate
(REFRATE[1:0])
Table 10. Wait Time for Read Requests (READDLY[1:0])*
*The selected delay time is applied before and after the requested byte is read.
CMRATIO[1:0]
CURRENT-
MIRROR RATIO
BRIDGE
RESISTANCE (kI)
00 6 10
01 12 5
10 18 3.33
11 30 2
REFRATE[1:0] UPDATE INTERVAL (ms)
00 4.096
01 16.384
10 65.536
11 131.072
READDLY[1:0] RESPONSE DELAY IN BYTE TIMES (8-BIT TIME)
00 1 byte time (i.e., (1 x 8)/baud rate)
01 2 byte times
10 4 byte times
11 8 byte times
IRO SIGN IRO[3:0]
INPUT-
REFERRED
OFFSET
CORRECTION
AS % OF V
DDX
INPUT-REFERRED
OFFSET
CORRECTION
AT V
DDX
= 5V DC
(mV)
IRO SIGN IRO[3:0]
INPUT-REFERRED
OFFSET
CORRECTION
AS % OF V
DDX
INPUT-REFERRED
OFFSET
CORRECTION
AT V
DDX
= 5V DC
(mV)
1 1111 1.11 55.5 0 0000 0 0
1 1110 1.04 51.8 0 0001 -0.07 -3.7
1 1101 0.96 48.1 0 0010 -0.15 -7.4
1 1100 0.89 44.4 0 0011 -0.22 -11.1
1 1011 0.81 40.7 0 0100 -0.30 -14.8
1 1010 0.74 37 0 0101 -0.37 -18.5
1 1001 0.67 33.3 0 0110 -0.44 -22.2
1 1000 0.59 29.6 0 0111 -0.52 -25.9
1 0111 0.52 25.9 0 1000 -0.59 -29.6
1 0110 0.44 22.2 0 1001 -0.67 -33.3
1 0101 0.37 18.5 0 1010 -0.74 -37
1 0100 0.30 14.8 0 1011 -0.81 -40.7
1 0011 0.22 11.1 0 1100 -0.89 -44.4
1
0010 0.15 7.4 0 1101 -0.96 -48.1
1 0001 0.07 3.7 0 1110 -1.04 -51.8
1 0000 0 0 0 1111 -1.11 -55.5