OA1MPA Datasheet, PDF (11/28 Pages) STMicroelectronics – Medical instrumentation

OA1MPA, OA2MPA, OA4MPA
Electrical characteristics
Symbol
Table 6. Electrical characteristics (continued)
Parameter
Conditions
Min. Typ. Max. Unit
I_CC
Supply current (per channel, ^{T = 25 °C}
V_out = V_CC/2, R_L > 1 M)
-40 °C < T< 125 °C
10 14
µA
16
AC performance
GBP
F_u
F_m
G_m
SR
e_n
Gain bandwidth product
Unity gain frequency
Phase margin
Gain margin
Slew rate⁽⁵⁾
Low-frequency peak-to-peak
input noise
R_L = 10 k, C_L = 100 pF
R_L = 10 k, C_L = 100 pF,
V_out = 0.5 V to V_CC - 0.5 V
Bandwidth: f = 0.1 to 10 Hz
110 150
120
45
19
0.06
10
kHz
Degrees
dB
V/s
µV_pp
f = 1 kHz
e_n
Equivalent input noise voltage
f = 10 kHz
100
---n---V-----
96
Hz
THD+N
Total harmonic distortion +
noise
t_init
Initialization time⁽⁶⁾
f_in = 1 kHz, A_CL = 1,
R_L = 100 k, V_icm = (V_CC - 1 V)/2,
BW = 22 kHz, V_out = 0.5 V_pp
T = 25 °C
-40 °C < T< 125 °C
0.008
%
5
ms
50
1. See Section 4.4: Input offset voltage drift over temperature.
2. Typical value is based on the V_io 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.
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