MAX1455 Datasheet, PDF (19/25 Pages) Maxim Integrated Products – Low-Cost Automotive Sensor Signal Conditioner

Low-Cost Automotive Sensor Signal
Conditioner
Table 13. ALOC Definition
ALOC[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
ANALOG SIGNAL
OUT
BDR
ISRC
VDD
VSS
CLIP-TOP
CLIP-BOTTOM
FSODAC
FSOTCDAC
ODAC
OTCDAC
VREF
VPTATP
VPTATM
INP
INM
DESCRIPTION
PGA Output
Bridge Drive
Bridge Drive Current Setting
Internal Positive Supply
Internal Ground
Clip Voltage High Value
Clip Voltage Low Value
Full-Scale Output DAC
Full-Scale Output TC DAC
Offset DAC
Offset TC DAC
Bandgap Reference Voltage (nominally 1.25V)
Internal Test Node
Internal Test Node
Sensor’s Positive Input
Sensor’s Negative Input
WEAK PULLUP
REQUIRED
2^ATIM + 1 BYTE TIMES
WEAK PULLUP
REQUIRED
DATA _{1 1 1 1 1 0 1 0 0 1 0 1 1 0 1 1 1 1 1 1 1 1 1 X X X X X X X X X X X X 1 1 1 1 1 1 1 1 0 X X X X}
OUT
HIGH-Z
VALID OUTPUT
HIGH-Z
DIO
RECEIVE
HIGH-Z
RECEIVE
HOST
TRANSMIT
Figure 6. Analog Output Timing
HIGH-Z
TRANSMIT
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