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MAX1463 PDF даташит

Спецификация MAX1463 изготовлена ​​​​«Maxim Integrated» и имеет функцию, называемую «Low-Power Two-Channel Sensor Signal Processor».

Детали детали

Номер произв MAX1463
Описание Low-Power Two-Channel Sensor Signal Processor
Производители Maxim Integrated
логотип Maxim Integrated логотип 

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MAX1463 Даташит, Описание, Даташиты
19-2549; Rev 0a; 11/04
Low-Power Two-Channel Sensor
Signal Processor
General Description
The MAX1463 is a highly integrated, low-power, two-
channel sensor signal processor optimized for industri-
al and process control applications such as pressure
sensing and compensation, RTD and thermal-couple
linearization, weight sensing and classification, and
remote process monitoring with limit indication.
The MAX1463 accommodates sensors with outputs
ranging from 1mV/V to 1V/V and supports both pro-
grammable current and voltage sensor excitation. The
MAX1463 provides amplification, calibration, signal lin-
earization, and temperature compensation that enable
an overall performance approaching the inherent
repeatability of the sensor without requiring any exter-
nal trim components.
Two 16-bit voltage output DACs and two 12-bit PWMs
can be used to indicate each of the temperature-com-
pensated sensor signals independently, as a sum or
difference signal, or user-defined relationship between
each signal and temperature. Uncommitted op amps
are available for buffering the DAC outputs, driving
heavier external loads, or providing additional gain and
filtering.
The MAX1463 incorporates a 16-bit CPU, user-pro-
grammable 4kB of FLASH program memory, 128 bytes
of FLASH user information, one 16-bit ADC, two 16-bit
DACs, two 12-bit PWM digital outputs, four rail-to-rail op
amps, one SPI™-compatible interface, two GPIOs, and
one on-chip temperature sensor.
The MAX1463 operates from a single 5.0V supply and
is packaged for automotive, industrial, and commercial
temperature ranges in a 28-pin SSOP package.
Applications
Pressure Sensor Signal Conditioning
Weight Measurement Systems
Thermocouple and RTD Linearization
Transducers and Transmitters
Process Indicators
Calibrators and Controllers
GMR and MR Magnetic Direction Sensors
Functional Diagram and Detailed Block Diagram appear at
end of data sheet.
SPI is a trademark of Motorola, Inc.
Features
Programmable Amplification, Calibration,
Linearization, and Temperature Compensation
Two Differential or Four Single-Ended Sensor
Input Channels
Accommodates Sensor Output Sensitivities from
1mV/V to 1V/V
Two DAC/PWM Output Signal Channels
4–20mA Output Capability
4kB of FLASH Memory for Code and Coefficients
128 Bytes of FLASH Memory for User Information
Integrated Temperature Sensor
Flexible Dual Op-Amp Blocks
Programmable Sensor Input Gain and Offset
Programmable Sensor Sampling Rate and
Resolution
Programmable Current Excitation Source for
Bridge Sensors
Buffered 1.25V Output Reference
No External Trim Components Required
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX1463CAI
0°C to +70°C
28 SSOP
MAX1463C/W*
0°C to +70°C
Die
MAX1463EAI
-40°C to +85°C
28 SSOP
MAX1463AAI
-40°C to +125°C 28 SSOP
*Dice are tested at TA = +25°C, DC parameters only.
Pin Configuration
TOP VIEW
OUT1SM 1
AMP1M 2
AMP1P 3
OUT1LG 4
VBG 5
VDD 6
N.C. 7
CKSEL 8
CKIO 9
CS 10
DO 11
DI 12
SCLK 13
VSS 14
MAX1463
SSOP
28 OUT2SM
27 AMP2M
26 AMP2P
25 OUT2LG
24 ISRC
23 INP1
22 INM1
21 INP2
20 INM2
19 VREF
18 VSS
17 GPIO2
16 GPIO1
15 VDDF
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.









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MAX1463 Даташит, Описание, Даташиты
Low-Power Two-Channel Sensor
Signal Processor
ABSOLUTE MAXIMUM RATINGS
VDD - VSS...............................................................-0.3V to +6.0V
All Other Pins to VSS...................................-0.3V to (VDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
28-Pin SSOP (derate 9.5mW/°C above +70°C) ..........762mW
Operating Temperature Ranges (TMIN to TMAX)
MAX1463CAI .....................................................0°C to +70°C
MAX1463C/W.....................................................0°C to +70°C
MAX1463EAI...................................................-40°C to +85°C
MAX1463AAI ................................................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = 5.0V, VSS = 0V, fCLK = 4.0MHz, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SUPPLY
SYMBOL
CONDITIONS
MIN TYP MAX
Supply Voltage
Base Operating Current
CPU Current
VDD
IBO
ICPU
VSS = 0V
CPU stopped (Note 2)
All modules off, CPU = on, additive to IBO
(Note 3)
4.5 5.0 5.5
640 715 785
650 820 995
ADC Current
(Note 3)
IADC
All modules off, ADC = on, ADC clk =
1MHz, additive to IBO; the CPU and ADC
are not on at the same time
All modules off, ADC = on, ADC clk = 7kHz,
additive to IBO; the CPU and ADC are not
on at the same time
840
510
1035 1150
720 850
DAC Current
IDACn
All modules off, DAC = on, additive to IBO,
(n = 1 or 2) (Note 4)
400
470
520
Large Op-Amp Current
IOPLGn
All modules off, CPU stopped, large op
amp = on (n = 1 or 2)
350 585 700
Small Op-Amp Current
ANALOG INPUT
Differential Input Impedance
(INP1 to INM1 and
INP2 to INM2)
IOPSMn
All modules off, CPU stopped, small op
amp = on (n = 1 or 2)
RDIN
PGA[4:0] = 00000, CLK[2:0] = 000
PGA[4:0] = 01010, CLK[2:0] = 000
PGA[4:0] = 11110, CLK[2:0] = 000
PGA[4:0] = 00000, CLK[2:0] = 011
PGA[4:0] = 01010, CLK[2:0] = 011
PGA[4:0] = 11110, CLK[2:0] = 011
PGA[4:0] = 00000, CLK[2:0] = 110
PGA[4:0] = 01010, CLK[2:0] = 110
PGA[4:0] = 01000, CLK[2:0] = 110
130 175 210
4
100
62.5
32
800
500
256
6.4
4
UNITS
V
µA
µA
µA
µA
µA
µA
M
k
M
k
M
2 _______________________________________________________________________________________









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MAX1463 Даташит, Описание, Даташиты
Low-Power Two-Channel Sensor
Signal Processor
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 5.0V, VSS = 0V, fCLK = 4.0MHz, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Single-Sided Input Impedance
(INP1 to VSS, INM1 to VSS,
INP2 to VSS, INM2 to VSS)
Common-Mode Rejection Ratio
Differential Signal-Gain Range
Differential Signal Gain
Gain-Error Temperature
Coefficient
COARSE-OFFSET DAC
Resolution
SYMBOL
RSIN
CMRR
AVDIFF
CONDITIONS
PGA[4:0] = 00000, CLK[2:0] = 000
PGA[4:0] = 01010, CLK[2:0] = 000
PGA[4:0] = 11110, CLK[2:0] = 000
PGA[4:0] = 00000, CLK[2:0] = 011
PGA[4:0] = 01010, CLK[2:0] = 011
PGA[4:0] = 11110, CLK[2:0] = 011
PGA[4:0] = 00000, CLK[2:0] = 110
PGA[4:0] = 01010, CLK[2:0] = 110
PGA[4:0] = 01000, CLK[2:0] = 110
Common-mode voltage VCM = VSS to VDD
Selectable in 17 steps (Note 5)
PGA[4:0] = 00000
PGA[4:0] = 00001
PGA[4:0] = 01010
PGA[4:0] = 10100
PGA[4:0] = 11110
GETCADC PGA[4:0] = 00000
3-bit plus sign
PGA[4:0] =
00000 to 01000
MIN
0.90
7.0
68
125
220
TYP MAX
2
50
31.2
16
400
250
128
3.2
2
90
0.94 to 240
0.94 1.0
7.4 8.0
73 78
133 143
240 260
-8
4
130 135 140
COREF = VDD,
CO[3:0] = 0111
PGA[4:0] =
01010 to 10000
256 266 276
PGA[4:0] =
10100 to 11110
450 481 510
PGA[4:0] =
00000 to 01000
55 60 65
Effective Offset Adjustment at the
ADC Input
OAADC
COREF = VDD,
CO[3:0] = 0011
PGA[4:0] =
01010 to 10000
107 117 127
PGA[4:0] =
10100 to 11110
180 210 240
PGA[4:0] =
00000 to 01000
0 5 10
COREF = VDD,
CO[3:0] = 0000
PGA[4:0] =
01010 to 10000
3 9 15
PGA[4:0] =
10100 to 11110
-4 +8 +20
UNITS
M
k
M
k
M
dB
V/V
ppm/°C
Bits
% of
ADC
Ref
_______________________________________________________________________________________ 3










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