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ADUCM330WFS Datasheet(Fiches technique) 6 Page - Analog Devices

Numéro de pièce ADUCM330WFS
Description  Integrated, Precision Battery Sensor for Automotive Systems
Télécharger  17 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
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ADuCM330WFS/ADuCM331WFS
Data Sheet
Rev. A | Page 6 of 17
TA = −40°C to +115°C
TA = +115°C to +125°C1
Parameter
Test Conditions/Comments
Min
Typ
Max
Min
Typ
Max
Unit
Gain = 8, ADCFLT = 0x10001
2.5
3.5
3.0
µV rms
Gain = 4, ADCFLT = 0x10001
4.3
6.5
5.0
µV rms
ADC low power mode, 221 Hz update
rate, chop enabled, gain = 64
0.6
0.9
0.8
µV rms
Voltage Channel1,9
No Missing Codes
Valid at all ADC update rates
20
Bits
INL
From 6 V to 18 V, ADCFLT = 0x10001,
0x08101, 0x00007
−350
±10
+350
±150
ppm of
FSR
Offset Error3,4
Chop off, 1 LSB = 27.4 µV, after two-point
calibration
−160
±16
+160
LSB
Chop on, after two-point calibration,
offset measured using 0 V differential
into voltage ADC (VADC) auxiliary pins
−16
±4.8
+16
±4.8
LSB
Offset Error Drift5
Chop off
±0.48
±1
LSB/°C
Total Gain Error3,4,6
After user system calibration at 25°C,
includes resistor mismatch
−0.25
±0.06
+0.25
±0.1
%
TA = −25°C to +65°C
−0.15
±0.03
+0.15
%
Gain Drift7
Includes resistor mismatch drift
±3
±3
ppm/°C
Output Noise10
10 Hz update rate, chop on
50
µV rms
ADCFLT = 0x00007
180
270
µV rms
ADCFLT = 0x08101
280
350
300
µV rms
ADCFLT = 0x10001
400
500
470
µV rms
Temperature Channel1
No Missing Codes
Valid at all ADC update rates
20
Bits
INL
ADCFLT = 0x10001, 0x08101, 0x00007
−60
±10
+60
±15
ppm of
FSR
Offset Error3,11
Chop off, 1 LSB = 1.14 μV (unipolar
mode), after two-point calibration
−160
±48
+160
LSB
Offset Error3
Chop on
−80
+16
+80
±16
LSB
Offset Error Drift
Chop off
±0.48
±0.48
LSB/°C
Total Gain Error3,11
−0.25
±0.06
+0.25
±0.10
%
Gain Drift7
3
3
ppm/°C
Output Noise
1 kHz update rate, ADCFLT = 0x00007
7.5
11.25
10
µV rms
ADC SPECIFICATIONS,
ANALOG INPUT
PGASCALE, Bits[11:10] = 0x3
Current Channel1
Absolute Input
Voltage Range
Applies to both IIN+ and IIN−
−200
+300
mV
Differential Input
Voltage Range12
Range = VREF/gain, limited by absolute
input voltage range
±1.2/gain
V
Input Leakage
Current13
−3
+3
±0.2
nA
Input Offset Current13
0.2
0.6
0.4
nA
Voltage Channel
Absolute Input
Voltage Range1
Voltage ADC specifications are valid in this
range
6
19
V
Input Voltage
Range1
0 to 28.8
V
VBAT Input Current
VBAT = 18 V
5
9
13
11
µA
Temperature Channel
VREF14 = AVDD18 and GND_SW
Absolute Input
Voltage Range1,15
100
1500
mV
Input Voltage Range1
0 to 1.4
V
VTEMP Input
Current1
2.5
10
3.5
nA




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