MAX1478 Datasheet, PDF (18/20 Pages) Maxim Integrated Products – 1% Accurate, Digitally Trimmed,Rail-to-Rail Sensor Signal Conditioner

1% Accurate, Digitally Trimmed,
Rail-to-Rail Sensor Signal Conditioner
BDRIVE
INP
INM
ISRC
CS
WE
SCLK
DIO
Functional Diagram
V_DD
MAX1478
Σ
PGA
OUT
V_DD
R_FTC
R_ISRC
128-BIT
V_SS
EEPROM
DIGITAL
INTERFACE
FSOTC
A=1
TEMP
V_SS
TEMP
DVM, the environmental chamber, and the pressure con-
troller through other vendors.
The 14XXDASBOARD, in conjunction with the
14XXMUXBOARD modules, allows the user to compen-
sate up to 112 units. IEEE-488 commands select the
active DUT and communicate with the MAX14XX appli-
cation circuits. All system voltage measurements are
multiplexed for use with a single external DVM. Each
DUT interfaces to the 14XXMUXBOARD through a general-
purpose transition board, which provides digital inter-
face signals and low-noise analog inputs. The
14XXDASBOARD is required to operate the
14XXMUXBOARD. All driver software is incorporated
into the 14XXDASBOARD firmware. Sensor compensa-
tion procedure is implemented using National
Instruments’ LabView program. Customers may have to
adapt portions of the compensation procedure if they
are using a pressure controller, oven, or DVM that is
different from the type for which the system was
designed.
The system will be available free to all customers who
order MAX14XX. Minimum order quantities apply.
Contact factory for details.
Chip Information
TRANSISTOR COUNT: 7708
SUBSTRATE CONNECTED TO V_SS.
MAX14XX PILOT TESTER
Block Diagram
ONE CABLE/DUT
MAX14XX DAS/MUX
IEEE-488 BUS
TEMP CHAMBER
DUT
#1
PRESSURE
CONTROLLER
DUT
DMM
#112
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