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MAX1458CAE

Description
1%-Accurate, Digitally Trimmed Sensor Signal Conditioner
CategoryAnalog mixed-signal IC    The signal circuit   
File Size152KB,20 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric Compare View All

MAX1458CAE Overview

1%-Accurate, Digitally Trimmed Sensor Signal Conditioner

MAX1458CAE Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMaxim
Parts packaging codeSOIC
package instruction5.30 MM, 0.65 MM PITCH, SSOP-16
Contacts16
Reach Compliance Code_compli
ECCN codeEAR99
Is SamacsysN
Analog Integrated Circuits - Other TypesANALOG CIRCUIT
JESD-30 codeR-PDSO-G16
JESD-609 codee0
length6.2 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP20,.3
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)245
power supply5 V
Certification statusNot Qualified
Maximum seat height1.99 mm
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)4.5 V
Nominal supply voltage (Vsup)5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn85Pb15)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width5.29 mm
Base Number Matches1
19-1373; Rev 0; 5/98
1%-Accurate, Digitally Trimmed
Sensor Signal Conditioner
General Description
The MAX1458 highly integrated analog-sensor signal
processor is optimized for piezoresistive sensor calibra-
tion and compensation without any external compo-
nents. It includes a programmable current source for
sensor excitation, a 3-bit programmable-gain amplifier
(PGA), a 128-bit internal EEPROM, and four 12-bit
DACs. Achieving a total error factor within 1% of the
sensor’s repeatability errors, the MAX1458 compen-
sates offset, offset temperature coefficient, full-span
output (FSO), FSO temperature coefficient (FSOTC),
and FSO nonlinearity of silicon piezoresistive sensors.
The MAX1458 calibrates and compensates first-order
temperature errors by adjusting the offset and span of
the input signal via digital-to-analog converters (DACs),
thereby eliminating quantization noise. Built-in testabili-
ty features on the MAX1458 result in the integration of
three traditional sensor-manufacturing operations into
one automated process:
Pretest:
Data acquisition of sensor performance
under the control of a host test computer.
Calibration and compensation:
Computation and
storage (in an internal EEPROM) of calibration and
compensation coefficients computed by the test
computer and downloaded to the MAX1458.
Final test operation:
Verification of transducer cali-
bration and compensation without removal from the
pretest socket.
Although optimized for use with piezoresistive sensors,
the MAX1458 may also be used with other resistive
sensors (i.e., accelerometers and strain gauges) with
some additional external components.
Features
o
Medium Accuracy (±1%), Single-Chip Sensor
Signal Conditioning
o
Sensor Errors Trimmed Using Correction
Coefficients Stored in Internal EEPROM—
Eliminates the Need for Laser Trimming and
Potentiometers
o
Compensates Offset, Offset-TC, FSO, FSOTC,
FSO Linearity
o
Programmable Current Source (0.1mA to 2.0mA)
for Sensor Excitation
o
Fast Signal-Path Settling Time (<1ms)
o
Accepts Sensor Outputs from 10mV/V to 40mV/V
o
Fully Analog Signal Path
MAX1458
Ordering Information
PART
MAX1458CAE
MAX1458C/D
MAX1458AAE
TEMP. RANGE
0°C to +70°C
0°C to +70°C
-40°C to +125°C
PIN-PACKAGE
16 SSOP
Dice*
16 SSOP
*Dice
are tested at T
A
= +25°C, DC parameters only.
Functional Diagram appears at end of data sheet.
______________________Customization
Maxim can customize the MAX1458 for unique require-
ments. With a dedicated cell library consisting of more
than 90 sensor-specific functional blocks, Maxim can
quickly provide customized MAX1458 solutions. Please
contact Maxim for further information.
TOP VIEW
SCLK 1
CS 2
I.C. 3
TEMP 4
FSOTC 5
DIO 6
WE 7
V
SS
8
Pin Configuration
16 LIMIT
15 V
DD
14 INP
________________________Applications
Piezoresistive Pressure and Acceleration
Transducers and Transmitters
MAP (Manifold Absolute Pressure) Sensors
Automotive Systems
Hydraulic Systems
Industrial Pressure Sensors
MAX1458
13 BDRIVE
12 INM
11 I.C.
10 OUT
9
ISRC
SSOP
________________________________________________________________
Maxim Integrated Products
1
For the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.

MAX1458CAE Related Products

MAX1458CAE MAX1458C/D MAX1458AAE MAX1458
Description 1%-Accurate, Digitally Trimmed Sensor Signal Conditioner 1%-Accurate, Digitally Trimmed Sensor Signal Conditioner 1%-Accurate, Digitally Trimmed Sensor Signal Conditioner 1%-Accurate, Digitally Trimmed Sensor Signal Conditioner
Is it lead-free? Contains lead Contains lead Contains lead -
Is it Rohs certified? incompatible incompatible incompatible -
Maker Maxim Maxim Maxim -
Parts packaging code SOIC DIE SOIC -
package instruction 5.30 MM, 0.65 MM PITCH, SSOP-16 DIE, SSOP, SSOP20,.3 -
Contacts 16 16 16 -
Reach Compliance Code _compli _compli _compli -
Analog Integrated Circuits - Other Types ANALOG CIRCUIT ANALOG CIRCUIT ANALOG CIRCUIT -
JESD-30 code R-PDSO-G16 R-XUUC-N R-PDSO-G16 -
JESD-609 code e0 e0 e0 -
Humidity sensitivity level 1 1 1 -
Number of functions 1 1 1 -
Number of terminals 16 16 16 -
Maximum operating temperature 70 °C 70 °C 125 °C -
Package body material PLASTIC/EPOXY UNSPECIFIED PLASTIC/EPOXY -
encapsulated code SSOP DIE SSOP -
Package shape RECTANGULAR RECTANGULAR RECTANGULAR -
Package form SMALL OUTLINE, SHRINK PITCH UNCASED CHIP SMALL OUTLINE, SHRINK PITCH -
Peak Reflow Temperature (Celsius) 245 240 245 -
Certification status Not Qualified Not Qualified Not Qualified -
Maximum supply voltage (Vsup) 5.5 V 5.5 V 5.5 V -
Minimum supply voltage (Vsup) 4.5 V 4.5 V 4.5 V -
Nominal supply voltage (Vsup) 5 V 5 V 5 V -
surface mount YES YES YES -
technology CMOS CMOS CMOS -
Temperature level COMMERCIAL COMMERCIAL AUTOMOTIVE -
Terminal surface Tin/Lead (Sn85Pb15) TIN LEAD Tin/Lead (Sn85Pb15) -
Terminal form GULL WING NO LEAD GULL WING -
Terminal location DUAL UPPER DUAL -
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED -
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