MX884 View Datasheet(PDF) - Clare Inc => IXYS
Part Name
Description
Manufacturer
MX884 Datasheet PDF : 7 Pages
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MX884
2 Functional Description
The MX884 converts a small voltage developed
across an external sense resistor (Rs) to a 10-bit
digital output. Pin IN connects to the 3V to 60V power
input. The external current sense resistor connects
between pins IN and LOAD. The nominal A/D range is
100 mV V(IN)-V(LOAD) across Rs. The A/D least
significant bit typically equals 0.1 mV across RS .
Figure 1. Serial Timing Diagram
Inputs CS and SCK are TTL-level compatible, 5.5V
maximum input voltage. Inputs can be driven from
CMOS microcontrollers operating at supply voltages
of 2.4 to 5.5V. Serial data output pin SDO is configured
as open drain, maximum 5.5V external pull-up. SCK is
used internally to clock the successive approximation
register of the A/D.
Internal S/H
CS
SCK
SDO
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Figure 2. Typical Application Circuit
Power
Supply
+3V
microcontroller
Power
Return
0.1Ω
10nF
4
3
IN LOAD
MX884
6 SDO
5 CS
1
SCK
GND
2
Load
4
www.clare.com
12/20/2006
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