OA1MPA datasheet(11/28 Pages) STMICROELECTRONICS

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OA1MPA, OA2MPA, OA4MPA

Electrical characteristics

ICC

Supply current (per channel,

Vout = VCC/2, RL > 1 M)

T = 25 °C

µA

-40 °C < T< 125 °C

AC performance

GBP

Gain bandwidth product

RL =10k, CL = 100 pF

110

150

kHz

Unity gain frequency

120

Phase margin

Degrees

Gain margin

Slew rate(5)

RL =10k, CL = 100 pF,

Vout = 0.5 V to VCC - 0.5 V

0.06

s

e

Low-frequency peak-to-peak

input noise

Bandwidth: f=0.1to10Hz

µVpp

Equivalent input noise voltage

f= 1kHz

100

f = 10 kHz

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

-40 °C < T< 125 °C

See Section 4.4: Input offset voltage drift over temperature.

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.

Guaranteed by characterization.

Tested on SC70-5 package.

Slew rate value is calculated as the average between positive and negative slew rates.

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

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