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OA1MPA Datasheet(PDF) 11 Page - STMicroelectronics

Part # OA1MPA
Description  Medical instrumentation
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

OA1MPA Datasheet(HTML) 11 Page - STMicroelectronics

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DocID025992 Rev 1
11/28
OA1MPA, OA2MPA, OA4MPA
Electrical characteristics
28
ICC
Supply current (per channel,
Vout = VCC/2, RL > 1 M)
T = 25 °C
10
14
µA
-40 °C < T< 125 °C
16
AC performance
GBP
Gain bandwidth product
RL =10k, CL = 100 pF
110
150
kHz
Fu
Unity gain frequency
120
Fm
Phase margin
45
Degrees
Gm
Gain margin
19
dB
SR
Slew rate(5)
RL =10k, CL = 100 pF,
Vout = 0.5 V to VCC - 0.5 V
0.06
V/
s
e
n
Low-frequency peak-to-peak
input noise
Bandwidth: f=0.1to10Hz
10
µVpp
en
Equivalent input noise voltage
f= 1kHz
100
f = 10 kHz
96
THD+N
Total harmonic distortion +
noise
fin = 1 kHz, ACL =1,
RL = 100 k, Vicm =(VCC - 1 V)/2,
BW = 22 kHz, Vout =0.5 Vpp
0.008
%
tinit
Initialization time(6)
T = 25 °C
5
ms
-40 °C < T< 125 °C
50
1.
See Section 4.4: Input offset voltage drift over temperature.
2.
Typical value is based on the Vio drift observed after 1000h at 125 °C extrapolated to 25 °C using the Arrhenius law and
assuming an activation energy of 0.7 eV. The operational amplifier is aged in follower mode configuration. See Section 4.5:
Long-term input offset voltage drift.
3.
Guaranteed by characterization.
4.
Tested on SC70-5 package.
5.
Slew rate value is calculated as the average between positive and negative slew rates.
6.
Initialization time is defined as the delay after power-up to guarantee operation within specified performances. Guaranteed
by design. See Section 4.6: Initialization time.
Table 6. Electrical characteristics (continued)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
nV
Hz
------------


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