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MAX1452 Datasheet(PDF) 22 Page - Maxim Integrated Products

Part No. MAX1452
Description  Low-Cost Precision Sensor Signal Conditioner
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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 22 page
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Low-Cost Precision Sensor
Signal Conditioner
22
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Table 14. ALOC Definition
ALOC[3:0]
ANALOG SIGNAL
DESCRIPTION
0000
OUT
PGA Output
0001
BDR
Bridge Drive
0010
ISRC
Bridge Drive Current Setting
0011
VDD
Internal Positive Supply
0100
VSS
Internal Ground
0101
BIAS5U
Internal Test Node
0110
AGND
Internal Analog Ground. Approximately half of VDD.
0111
FSODAC
Full Scale Output DAC
1000
FSOTCDAC
Full Scale Output TC DAC
1001
ODAC
Offset DAC
1010
OTCDAC
Offset TC DAC
1011
VREF
Bandgap Reference Voltage (nominally 1.25V)
1100
VPTATP
Internal Test Node
1101
VPTATM
Internal Test Node
1110
INP
Sensor’s Positive Input
1111
INM
Sensor’s Negative Input
Table 15. Effects of Compensation
TYPICAL UNCOMPENSATED INPUT (SENSOR)
TYPICAL COMPENSATED TRANSDUCER OUTPUT
Offset…………………..…….…………………………..
±100%FSO
FSO…………………………….………………………..1 to 40mV/V
Offset TC…………………………………………………...20% FSO
Offset TC Nonlinearity…..………………………………….4% FSO
FSOTC…………………………..………………………..-20% FSO
FSOTC Nonlinearity…..……..…………………………….5% FSO
Temperature Range..….….……………………..-40
°C to +125°C
OUT..…….……………………………..Ratiometric to VDD at 5.0V
Offset at +25
°C……………………………………0.500V ± 200µV
FSO at +25
°C……………………………………...4.000V ± 200µV
Offset accuracy over temp. range….………
±4mV (±0.1% FSO)
FSO accuracy over temp. range……………
±4mV (±0.1% FSO)
Chip Information
TRANSISTOR COUNT: 67,382
SUBSTRATE CONNECTED TO: VSS




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