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PDF EM6415 Data sheet ( Hoja de datos )
| Número de pieza | EM6415 | |
| Descripción | Sensor Signal Conditioner Circuit | |
| Fabricantes | EM Microelectronic | |
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EM MICROELECTRONIC - MARIN SA
EM6415
Sensor Signal Conditioner Circuit with 14 bits A/D Converter
Description
The EM6415 is a high resolution A/D converter in low
voltage CMOS technology intended to be used as a
programmable link between one to four resistive sensors
and a microcontroller.
There is no need of external components for calibration,
error curve compensation or offset and gain adjustment,
nor external amplifiers and sensor bridge drive circuits.
After exposure to a calibration signal/profile, all
conversion parameters and profile coefficients are self
calculated and stored in an external EEPROM.
In addition to a programmable dual slope 10/13/14 bit A/D
conversion, EM6415 allows individual compensation of
not only sensor offset and full scale errors, but also
temperature error compensation of the sensor zero point
and sensitivity, dynamically during the conversion
process. EM6415 also contains a programmable sensor
drive current source.
Typical Application
VDD
CAZ
Features
Full sensor system on chip
Four sensor channel multiplexer
Programmable Dual slope A/D converter
Program selectable 10, 13 or 14 bit resolution
ADC resolves 1µV/Bit
Programmable sensor offset, gain and linearity
High flexibility in zero adjust and full scale adjust
Sensor error compensation performed by software
Parallel 4 bit microcontroller interface
Self calibration of conversion parameters and profile
coefficients
Ultra low noise differential input amplifier with mask
programmable gain
Excellent linearity over full transfer curve
Programmable current source for sensor supplies.
Low supply voltage range 2.2V – 3.6 V
Low operation current, 240 µA at 800 kHz, 3V
Ultra low power consumption (at standby or after
conversion down to less than 0.1 µA)
Small SSOP36-300mils package
Applications
Portable sensor instruments
Telemetry
Resistive sensor interfaces
Automotive sensors
Industrial process control
Consumer instruments
CI
Sensor1
Sensor2
Sensor3
Sensor4
VDDA
RSEN1
RSEN2
TS1
CH1H
CH1L
TS2
CH2H
CH2L
TS3
CH3H
CH3L
TS4
CH4H
VDDD
CH4L
VSSD
AZN
EM6415
CINT
CE
RD
WR
ALE
D0-D3
CLKP
CLKSEL
VDD
VSSA
VREF
CE
RD
WR MICROCONTROLLER
STROBE
DATA
EEPROM
LCD
Copyright 2002, EM Microelectronic-Marin SA
1
Fig. 1
www.emmicroelectronic.com
1 page  
DC Characteristics
Parameter
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
Output Low Voltage
Output High Voltage
EM6415
Symbol Conditions
VIL ALE , RD , WR , CE , CLKP,
CLKSEL, D0-D3
VIH ALE , RD , WR , CE , CLKP,
CLKSEL, D0-D3
IIL ALE , RD , WR , CE , CLKP,
CLKSEL, D0-D3
IIH ALE , RD , WR , CE , CLKP,
CLKSEL, D0 - D3
VOL IOL = 2mA, D0 –D3
VOH IOH = -1mA, D0 –D3
Min.
Typ. Max Unit
0.8⋅VDD
-20
0.2⋅ VDD V
V
1 nA
1 20 nA
0.1 0.4
2.4 2.95
V
V
Timing Characteristics
Data Write cycle
VDD = 3.0V, VSS = 0V, T = 25 °C, VOH = 0.8⋅VDD, VOL = 0.2⋅VDD
Item
Symbol
Min.
Address Set-up Time
Address Hold Time
Data Set-up Time
Data Hold Time
Twas
Twah
Twds
Twdh
20
30
20
30
ALE Pulse Width
Twap
60
WR Pulse Width
Twwp
60
Typ.
25
35
25
35
65
65
Max.
-
-
-
-
-
-
Unit
ns
ns
ns
ns
ns
ns
ALE
VOH
VOL
WR
D0-D3
VOH
VOL
twas
twap
twah
Address
VOH
VOL
twds
twdp
Data
twdh
VOH
VOL
Fig. 3
Copyright 2002, EM Microelectronic-Marin SA
5
www.emmicroelectronic.com
5 Page 
Package Information
SSOP36 – 300 mils
EM6415
Symbol
A
A1
A2
B
C
D
E
e
H
h
L
X
α
Common dimensions (inches)
Min Nom Max
0.097
0.101
0.104
0.0050 0.009 0.0115
0.090
0.092
0.094
0.012
0.014
0.017
0.0091 0.010 0.0125
0.602
0.607
0.612
0.292
0.296
0.299
0.0315
BSC
0.400
0.406
0.410
0.010
0.013
0.016
0.024
0.032
0.040
0.085
0.093
0.100
0° 5° 8°
Note
Symbol
A
A1
A2
B
C
D
E
e
H
h
L
X
α
Common dimensions (mm)
Min. Nom Max
2.46
2.56
2.64
0.127
0.22
0.29
2.29
2.34
2.39
0.31
0.36
0.43
0.23
0.25
0.32
15.29
15.42
15.54
7.42
7.52
7.59
0.80
BSC
10.16
10.31
10.41
0.25
0.33
0.41
0.61
0.81
1.02
2.16
2.36
2.54
0° 5° 8°
Note
Copyright 2002, EM Microelectronic-Marin SA
11
www.emmicroelectronic.com
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet EM6415.PDF ] | |
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