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OA1MPA Datasheet, PDF (8/28 Pages) STMicroelectronics – Medical instrumentation | |||
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Electrical characteristics
OA1MPA, OA2MPA, OA4MPA
VCC+ = 3.3 V with VCC- = 0 V, Vicm = VCC/2, T = 25 °C, and RL = 10 kï connected to VCC/2
(unless otherwise specified)
Symbol
Table 5. Electrical characteristics
Parameter
Conditions
Min.
DC performance
T = 25 °C
Vio Input offset voltage
ïVio/ïT
ïVio
Input offset voltage drift
Long-term input offset voltage
drift
-40 °C < T< 85 °C
-40 °C < T< 125 °C
-40 °C < T< 125 °C(1)
T = 25 °C(2)
Iio
Input offset current
(Vout = VCC/2)
T = 25 °C
-40 °C < T< 125 °C
T = 25 °C
Iib
Input bias current (Vout = VCC/2)
-40 °C < T< 125 °C
Common mode rejection ratio T = 25 °C
80
CMR 20 log (ïVicm/ïVio)
Vicm = 0 V to VCC, Vout = VCC/2, -40 °C < T< 125 °C
69
RL > 1 Mï
Large signal voltage gain
T = 25 °C
95
Avd
Vout = 0.5 V to (VCC - 0.5 V)
-40 °C < T< 125 °C
85
High level output voltage
VOH
(VOH = VCC - Vout)
T = 25 °C
-40 °C < T< 125 °C
VOL Low level output voltage
T = 25 °C
-40 °C < T< 125 °C
Isink (Vout = VCC)
Iout
Isource (Vout = 0 V)
T = 25 °C
20
-40 °C < T< 125 °C
15
T = 25 °C
20
-40 °C < T< 125 °C
15
ICC
Supply current (per channel,
Vout = VCC/2, RL > 1 Mï)
T = 25 °C
-40 °C < T< 125 °C
AC performance
GBP
Fu
Fm
Gm
SR
Gain bandwidth product
Unity gain frequency
Phase margin
Gain margin
Slew rate(4)
100
RL = 10 kï, CL = 100 pF
RL = 10 kï, CL = 100 pF,
Vout = 0.5 V to VCC - 0.5 V
Typ. Max. Unit
200
850
ïV
1200
10 ïV/°C
0.3
----------ï-----V-----------
month
1
10(3)
1
300(3)
pA
1
10(3)
1
300(3)
100
dB
75
80
mV
40
60
34
mA
26
9
14
µA
16
120
kHz
100
45
Degrees
19
dB
0.05
V/ïs
8/28
DocID025992 Rev 1
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