MAXQ7670A Maxim, MAXQ7670A Datasheet - Page 10
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MAXQ7670A
Manufacturer Part Number
MAXQ7670A
Description
The MAXQ7670A is a highly integrated solution for measuring multiple analog signals and outputting the results on a control area network (CAN) bus
Manufacturer
Maxim
Datasheet
1.MAXQ7670A.pdf
(38 pages)
Microcontroller with 12-Bit ADC,
PGA, 64KB Flash, and CAN Interface
(V
otherwise noted.)
10
-0.2
-0.4
-0.6
-0.8
-1.0
1.0
0.8
0.6
0.4
0.2
DVDDIO
5
4
3
2
1
0
0
0
0
______________________________________________________________________________________
T
BIPOLAR MODE
V
PS0._ = 0
A
IN
T
T
= -40°C
A
A
T
= -100mV TO +100mV
GPO._ OUTPUT HIGH VOLTAGE
= +25°C
= +85°C
A
(REFADC = +3.3V, 75ksps,
= 5.0V, V
= +105°C
0.5
DVDD, RESET POWER-UP
1024
vs. SOURCE CURRENT
PGA GAIN = 16V/V)
ADC DNL vs. CODE
CHARACTERISTICS
DIGITAL OUTPUT CODE
1.0
10ms/div
I
OH
AVDD
2048
(mA)
REGEN2 = GNDIO
1.5
= 3.3V, V
3072
T
T
A
A
PS0._ = 1
T
MAXQ7670A toc07
T
2.0
= +105°C
A
= +85°C
A
= +25°C
= -40°C
DVDD
4096
2.5
DVDDIO
2V/div
DVDD
1V/div
RESET
2V/div
= 2.5V, f
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
5
4
3
2
1
0
0
SYSCLK
-40 -25 -10 5 20 35 50 65 80 95 110 125
0
ADC OFFSET ERROR vs. TEMPERATURE
PS0._ = 0
BIPOLAR MODE
PGA GAIN = 16V/V
V
V
T
T
A
IN-DIFF
IN-CM
A
T
= +105°C
GPO._ OUTPUT LOW VOLTAGE
A
= +85°C
T
DVDD, RESET POWER-DOWN
A
= +25°C
0.5
= 16MHz, ADC resolution = 12 bits, V
= -40°C
= +1.65V
= 0
vs. SINK CURRENT
CHARACTERISTICS
TEMPERATURE (°C)
1.0
T
20ms/div
I
A
OL
T
= -40°C
A
(mA)
= +25°C
T
A
REGEN2 = GNDIO
= +85°C
1.5
Typical Operating Characteristics
T
A
= +105°C
MAXQ7670A toc08
2.0
PS0._ = 1
2.5
DVDDIO
2V/div
DVDD
1V/div
RESET
2V/div
REFDAC
-0.2
-0.4
-0.6
-0.8
-1.0
-0.2
-0.4
-0.6
-0.8
-1.0
200
180
160
140
120
100
(REF ADC = +3.3V, 75ksps, PGA GAIN = 16V/V)
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
80
60
40
20
0
0
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
0
MAXIMUM DVDD TRANSIENT DURATION
1
ADC GAIN ERROR vs. TEMPERATURE
BIPOLAR MODE
V
BIPOLAR MODE
PGA GAIN = 16V/V
V
V
IN
IN-DIFF
IN-CM
vs. BOI THRESHOLD OVERDRIVE
DV
= 3.3V, T
= -100mV TO +100mV
DD
= +1.65V
1024
= 200mV
BOI THRESHOLD OVERDRIVE (mV)
ADC INL vs. CODE
DIGITAL OUTPUT CODE
BOI ASSERTED ABOVE THIS LINE
TEMPERATURE (°C)
10
A
= +25°C, unless
2048
100
3072
4096
1000