as8510 austriamicrosystems, as8510 Datasheet - Page 11

• 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
6.4.2 Differential Input Amplifier for Voltage Channel
Table 16. Differential Input Amplifier for Voltage Channel
Notes:
www.austriamicrosystems.com/AS8510
V
VIN_
Symbol
IIN_
f
G = G1
G = G2
G = G3
G = G4
Vos_ch
P
OSDRIFT
V
THD
1. Input for the voltage channel can be as high as 1220mV, in this high input case PGA will be bypassed.
2. Leakage test accuracy is limited by tester resource accuracy and tester hardware, especially at low temperatures due to condensing
3. For gain 100 PGA input common mode is 0V and the minimum supply is 3.15V.
4. The measurement ranges are referred only by the gain of input amplifier, while other parameters such as bandwidth etc. are pro-
5. This parameter is not measured directly in production. It is measured indirectly via gain measurements of the whole path. It is guaran-
6. Pole frequency of input amplifier changes with changing the GAIN. The number is valid for the gain at G1, while the bandwidth will be
7. Noise density calculated by taking system bandwidth as 150Hz.
8. Based on device evaluation. Not tested.
9. No impact on the measurement path. If the chopping is enabled, both the offset and offset drift will be eliminated.
10. For negative input voltages up to -160mV below ground, Input leakage is typically -20nA @ 65ºC due to forward conductance of
_AMP
ICM
V
NDIN
ε
e
OS
T
AMP
AMP
1
moisture.
grammed independently.
teed by design.
higher for other ranges. This parameter is not measured in production.
protection diode.
Absolute input voltage range
Offset drift with temperature
Gain drift with temperature
Total harmonic distortion
Input voltage range
Input referred offset
Pole frequency
Input current
Noise density
Gain deviation
Parameter
Gain1
Gain2
Gain3
Gain4
4, 5
4, 5
4, 5
4, 5
2, 10
5, 7
5, 6
1, 10
9
8
9
3
VBAT_IN, ETR, ETS @ +160mV input
Gain 5, 25, referenced to room
voltage at 125ºC with PGA
For 150Hz input signal
After trim at +65ºC
Chopping enabled
Revision 3.4
-20ºC to +65ºC
temperature
Conditions
i = 1, 2, 3, 4
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
11 - 46
nA
dB
%