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dc2025afa
DEMO MANUAL DC2025A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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Table 1
MSP2
MSP1
MSP0
OUTPUT RANGE
RESET CODE
MANUAL SPAN
SoftSpan
0
0
0
±10V
Mid-Scale
X
0
0
1
±5V
Mid-Scale
X
0
1
0
±2.5V
Mid-Scale
X
0
1
1
0V to 10V
Zero-Scale
X
1
0
0
0V to 10V
Mid-Scale
X
1
0
1
0V to 5V
Zero-Scale
X
1
1
0
0V to 5V
Mid-Scale
X
1
1
1
0V to 5V
Zero-Scale
X
Jumpers
REF_SEL (JP1):
Selects internal or external reference
mode. (See data sheet description of REFCOMP pin.)
MSP0, MSP1, MSP2 (JP2, JP3, JP4):
Manual Span
control. Setting all jumpers to the 1 position (Default)
selects SoftSpan operation, with a power-up default span
of 0V to 5V, and reset to Zero-Scale. Other options are
listed in Table 1.
LEDs
OVRTMP:
Lights when
OVRTMP
pin asserts, indicating an
overtemperature state. (Note that LED will light if positive
analog supply is present and OVP is not. OVP is normally
supplied by the controller.)
Test Points
The SPI bus is available on a row of through-hole test
points next to J1 that may be used to monitor the bus or
to drive the bus with an external controller.
EEGND, WP:
For factory use only.
