MAX1454_11 Datasheet, PDF (4/25 Pages) Maxim Integrated Products – Precision Sensor Signal Conditioner with Overvoltage Protection

MAX1454
Precision Sensor Signal Conditioner
with Overvoltage Protection
ELECTRICAL CHARACTERISTICS (continued)
(V_DDX = 5V, V_GND = 0V, T_A = +25NC, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
BRIDGE DRIVE
Bridge Current
I_BDR
CMRATIO[1:0] = 00
0.1
2.5
mA
4.8
6
7.2
Current-Mirror Ratio
CMRATIO[1:0] = 01
AA
CMRATIO[1:0] = 10
9.6
12
14.4
A/A
14.4
18
21.6
CMRATIO[1:0] = 11
24
30
36
Maximum Bridge Load
Capacitance
Voltage excitation mode (Note 4)
1
nF
FSO DAC Code Range
(Note 4)
0x4000
0xC000 Hex
Output Voltage Range
V_BDR
(Note 4)
0.75
V_DDX -
0.75
V
DIGITAL-TO-ANALOG CONVERTERS (DACs)
DAC Resolution
16
Bits
Offset DAC Bit Weight
Offset TC DAC Bit Weight
FSO DAC Bit Weight
FSO TC DAC Bit Weight
COARSE-OFFSET DAC
DV_OUT/DCode DAC reference = V_DDX = 5V
DV_OUT/DCode DAC reference = V_BDR = 2.5V
DV_BDR/DCode DAC reference = V_DDX = 5V
DV_BDR/DCode DAC reference = V_BDR = 2.5V
76
FV/bit
38
FV/bit
76
FV/bit
38
FV/bit
IRO DAC Resolution
Including sign
5
Bits
IRO DAC Bit Weight
DV_OUT/DCode
Input referred, DAC reference = V_DDX = 5V
(Note 9)
3.7
mV/bit
INTERNAL RESISTORS
OUT/DIO Pullup Resistance
Current Source Reference
Resistor
R_PULLUP
R_ISRC
100
kI
10
kI
Current Source Reference
Resistor Temperature
Coefficient
TCR_ISRC
600
ppm/NC
FLASH MEMORY
Endurance
(Notes 4, 10)
10,000
Cycles
Retention
Page Erase Time
T_A = +85NC (Note 4)
(Notes 4, 11)
10
Years
32
ms
Mass Erase Time
(Notes 4, 11)
32
ms
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