as8510 austriamicrosystems, as8510 Datasheet - Page 10

• Manufacturer Part Number: as8510
• Description: Data Acquisition Device For Battery Sensors
• Manufacturer: austriamicrosystems

AS8510
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
6.4.1 Differential Input Amplifier for Current Channel
Table 15. Differential Input Amplifier for Current Channel
Notes:
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V
V
I
Symbol
f
IN
G = G1
G = G2
G = G3
G = G4
Vos_ch
IN
P
OSDRIFT
VNdin
THD
1. Leakage test accuracy is limited by tester resource accuracy and tester hardware.
2. For gain 100 PGA input common mode is 0V and the minimum supply is 3.15V.
3. The measurement ranges are referred only by the gain of input amplifier, while other parameters such as bandwidth etc. are pro-
4. This parameter is not measured directly in production. It is measured indirectly via gain measurements of the whole path. It is guaran-
5. Pole frequency of input amplifier changes with GAIN. The number is valid for the gain at G1, while the bandwidth will be higher for other
6. Based on device evaluation. Not tested.
7. These offsets are cancelled if chopping enabled (default).
8. Noise density calculated by taking system bandwidth as 150Hz.
9. Refer to Measurement Ranges shown in
10. No impact on the measurement path. If the chopping is enabled, both the offset and offset drift will be eliminated.
11. For negative input voltages up to -160mV below ground, Input leakage is typically -20nA @ 65ºC due to forward conductance of
_AMP
ICM
_AMP
εT1
Vos
_AMP
e
grammed independently.
teed by design.
ranges. This parameter is not measured in production.
protection diode.
Offset drift with temperature
Absolute input voltage range
Gain drift with temperature
Total harmonic distortion
Input referred offset
Input voltage range
Pole frequency
Input current
Noise density
Gain deviation
Parameter
Gain1
Gain2
Gain3
Gain4
3, 4, 9
3, 4, 9
3, 4, 9
3, 4, 9
1, 11
4, 8
4, 5
7, 10
7, 10
Table
6
2
13.
for temperature range -20 to +65ºC
RSHH and RSHL@ +160mV input
Gain 5, 25, referenced to room
voltage at 125ºC with PGA
For 150 Hz input signal
Revision 3.4
Chopping enabled
RSHH and RSHL
-20ºC to +65ºC
temperature
Conditions
i = 1, 2, 3, 4
After trim,
I1500
I200
I400
I10
0.9 * Gi
-160
Min
-50
15
+300
-160
Typ
100
350
40
25
25
70
2
5
0
1.1 * Gi
+160
Max
±0.3
350
50
nV/√Hz
Units
LSB
kHz
mV
mV
µV
µV
10 - 46
nA
dB
%