Low-Cost Precision Sensor

Signal Conditioner

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5

Typical Operating Characteristics

PIN

NAME

FUNCTION

1

ISRC

Bridge Drive Current Mode Setting

2

OUT

High ESD and Scan Path Output Signal. May need a 0.1

µF capacitor, in noisy environments.

OUT may be parallel connected to DIO.

Negative Supply Voltage

4

INM

Bridge Negative Input. Can be swapped to INP by configuration register.

5

BDR

Bridge Drive

6

INP

Bridge Positive Input. Can be swapped to INM by configuration register.

Positive Supply Voltage. Connect a 0.1

8

TEST

Pin Description

OFFSET DAC DNL

DAC CODE

0

30k

40k

10k

20k

50k

60k

70k

5.0

2.5

0

-2.5

-5.0

5.0

2.5

0

-2.5

-5.0

AMPLIFIER GAIN NONLINEARITY

INPUT VOLTAGE [INP-INM] (mV)

-50

0

-25

25

50

ODAC = 6800hex

OTCDAC = 0

FSODAC = 4000hex

FSOTCDAC = 8000hex

IRO = 2hex

PGA = 0

OUTPUT NOISE

400

µs/div

C = 4.7

OUT

10mV/div