AM417 datasheet(9/18 Pages) AD

Part #	AM417

Description	Ratiometric instrumentation amplifier with adjustable output stage

PDF	18 Pages

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Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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9 / 18 page

AM417 – Ratiometric instrumentation

amplifier with adjustable output stage

Analog Microelectronics GmbH

An der Fahrt 13, D – 55124 Mainz

July 2008 –Rev 3.1- Page 9/18

Phone:+49 (0)6131/91 073-0

Fax: +49 (0)6131/91 073-30

Internet: http://www.analogmicro.de

Email: info@analogmicro.de

If when calculating

VRO (Equation 11) a negative value is produced, the resistor R0 must be placed

in the left arm of the bridge (

RO’; see Figure 3):

Doing so changes the effective direction of

RO and its resistance is now expressed as:

)

(

−

⋅

(12a)

AM417

OUT

Ground

9 R

Output-

stage

IN -

IN +

Figure 3: Circuit as in Figure 2 with R0’ (instead R0) at input pin 5 (IN-)

AM417 Datasheet(PDF) 9 Page - Analog Devices