OA1ZHA, OA2ZHA, OA4ZHA

Electrical characteristics

DocID025994 Rev 2

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3

Electrical characteristics

Table 3: Electrical characteristics at VCC+ = 1.8 V with VCC- = 0 V, Vicm = VCC/2, T = 25 ° C,

and RL = 10 kΩ connected to VCC/2 (unless otherwise specified)

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

DC performance

Input offset voltage

T = 25 °C

1

5

μV

-40 °C < T < 125 °C

8

Input offset voltage drift (1)

-40 °C < T < 125 °C

10

30

nV/°C

Input bias current

T = 25 °C

50

200 (2)

pA

-40 °C < T < 125 °C

300 (2)

Input offset current

T = 25 °C

100

400 (2)

-40 °C < T < 125 °C

600 (2)

CMR

Common mode rejection

> 1 MΩ

T = 25 °C

110

122

dB

-40 °C < T < 125 °C

110

Large signal voltage gain,

T = 25 °C

118

135

-40 °C < T < 125 °C

110

High-level output voltage

T = 25 °C

30

mV

-40 °C < T < 125 °C

70

Low-level output voltage

T = 25 °C

30

-40 °C < T < 125 °C

70

T = 25 °C

7

8

mA

-40 °C < T < 125 °C

6

T = 25 °C

5

7

-40 °C < T < 125 °C

4

Supply current

(per amplifier),

> 1 MΩ)

T = 25 °C

28

40

μA

-40 °C < T < 125 °C

40

AC performance

GBP

Gain bandwidth product

400

kHz

Unity gain frequency

300

ɸm

Phase margin

55

Degrees

Gain margin

17

dB

SR

Slew rate (3)

0.17

V/μs

Setting time

50

μs

Equivalent input noise

voltage

f = 1 kHz

60

nV/√Hz

f = 10 kHz

60

Channel separation

f = 100 Hz

120

dB

Initialization time

T = 25 °C

50

μs

-40 °C < T < 125 °C

100