OA1NP datasheet(7/31 Pages) STMICROELECTRONICS

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DocID025993 Rev 2

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OA1NP, OA2NP, OA4NP

Electrical characteristics

VCC+ = 3.3 V with VCC- = 0 V, Vicm = VCC/2, Tamb = 25 ° C, and RL = 1 M connected to

VCC/2 (unless otherwise specified)

Table 5. Electrical characteristics

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

DC performance

Vio

Input offset voltage

-3

0.1

-40 °C < T< 85 °C

-3.4

3.4

V

io/T

Input offset voltage drift

-40 °C < T< 85 °C

V/°C

V

Long-term input offset

voltage drift

T = 25 °C(1)

0.36

Iio

Input offset current(2)

-40 °C < T< 85 °C

Iib

Input bias current(2)

-40 °C < T< 85 °C

CMR

Common mode rejection

ratio 20 log (

V

icm/Vio)

icm = 0 to 2.1 V, V

out = VCC/2

-40 °C < T< 85 °C

icm = 0 to 3.3 V, V

out = VCC/2

-40 °C < T< 85 °C

Avd

Large signal voltage gain

Vout = 0.3 V to (VCC+ - 0.3 V)

RL= 100 k

105

120

-40 °C < T< 85 °C

105

VOH

High level output voltage

(drop from VCC+)

RL = 100 k

-40 °C < T< 85 °C

VOL

Low level output voltage

RL = 100 k

-40 °C < T< 85 °C

Iout

Output sink current

Vout = VCC, VID= -200 mV

-40 °C < T< 85 °C

Output source current

Vout = 0 V, VID = + 200 mV

-40 °C < T< 85 °C

ICC

Supply current (per channel)

No load, Vout = VCC/2

600

800

-40 °C < T< 85 °C

850

AC performance

GBP

Gain bandwidth product

RL = 1 M, CL = 60 pF

kHz

Unity gain frequency



Phase margin

degrees

Gain margin

V

month

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