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LMP7312MA/NOPB Datasheet(PDF) 19 Page - Texas Instruments

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Part # LMP7312MA/NOPB
Description  Precision SPI-Programmable AFE with Differential/Single-Ended Input/Output
PDF  29 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LMP7312MA/NOPB Datasheet(HTML) 19 Page - Texas Instruments

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-
+
-VIN
+VIN
VOCM
RF
P
+VOUT
-VOUT/VR
100 k:
100 k:
V
+
V
-
V
-
R1
P
R2
P
R2
N
R1
N
-IN
+IN
VIO
V
+
RF
N
LMP7312
www.ti.com
SNOSB32B – MARCH 2010 – REVISED MARCH 2013
Figure 37. LMP7312 in Nulling Switch Mode
In this condition at the Output pins is possible to measure the input voltage offset of the op-amp:
Output Mode
+VOUT
−VOUT/VR
Differential
VCM_out+VOS/2
VCM_out -VOS/2
Single-Ended
VR+VOS
VR
Hi_Z bit:High Impedance
In this mode both outputs +VOUT and -VOUT/VR of the LMP7312 are in tri-state Figure 38.
HI_Z
Mode
Description
0
Normal Operation Mode
The LMP7312 is configured according to value of the other 4 bits of the
register.
1
High Impedance Mode
The LMP7312 output is in high impedance
Copyright © 2010–2013, Texas Instruments Incorporated
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