MAX1452 データシートの表示（PDF） - Maxim Integrated

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MAX1452

Low-Cost Precision Sensor Signal Conditioner

Maxim Integrated 

MAX1452

Low-Cost Precision Sensor

Signal Conditioner

Table 15. 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

BIAS5U

AGND

FSODAC

FSOTCDAC

ODAC

OTCDAC

VREF

VPTATP

VPTATM

INP

INM

DESCRIPTION

PGA Output

Bridge Drive

Bridge Drive Current Setting

Internal Positive Supply

Internal Ground

Internal Test Node

Internal Analog Ground. Approximately half of VDD.

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

Table 16. Effects of Compensation

TYPICAL UNCOMPENSATED INPUT (SENSOR)

TYPICAL COMPENSATED TRANSDUCER OUTPUT

Offset........................................................................ ±100% FSO

FSO................................................................. 4mV/V to 60mV/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)

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