XE8805 SEMTECH [Semtech Corporation], XE8805 Datasheet - Page 140

• Manufacturer Part Number: XE8805
• Description: Data Acquisition MCU
• Manufacturer: SEMTECH [Semtech Corporation]

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© Semtech 2006
XE8805A
In this configuration, the bridge current and DAB_AOM increase
D
A
when DAB_OUT increases
Figure 19-4. Current controlled sensor bias.
amp
DAB_AOM
DAB_R_M
DAB_OUT
DAB_AOP
DAB_R_P
DAB_AIM
DAB_AIP
19-6
V
V
V
D/A
refp
refn
V
sensor
VBAT
VSS
or another reference voltage
V
VSS
VBAT
R
R
Needs a 300
Max capacitive load is 1 nF
sense
Vrefp must remain above VSS + 2.3 V
Ω
– 100 k
reference input of
ZoomingADC
signal input of
ZoomingADC
XE8805/05A
Ω
kohm load
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