OA1ZHA datasheet(2/35 Pages) STMICROELECTRONICS

2 / 35 page

Contents

OA1ZHA, OA2ZHA, OA4ZHA

2/35

DocID025994 Rev 2

Contents

Package pin connections................................................................ 3

Absolute maximum ratings and operating conditions ................. 4

Electrical characteristics ................................................................ 5

Electrical characteristic curves .................................................... 11

Application information ................................................................ 17

5.1

Operation theory ............................................................................. 17

5.1.1

Time domain ..................................................................................... 17

5.1.2

Frequency domain............................................................................ 18

5.2

Operating voltages .......................................................................... 19

5.3

Input pin voltage ranges .................................................................. 19

5.4

Rail-to-rail input ............................................................................... 19

5.5

Input offset voltage drift over temperature....................................... 20

5.6

Rail-to-rail output............................................................................. 20

5.7

Capacitive load................................................................................ 21

5.8

PCB layout recommendations......................................................... 21

5.9

Optimized application recommendation .......................................... 22

5.10

EMI rejection ration (EMIRR) .......................................................... 22

5.11

Application examples ...................................................................... 23

5.11.1

Oxygen sensor ................................................................................. 23

5.11.2

Precision instrumentation amplifier .................................................. 24

5.11.3

Low-side current sensing.................................................................. 24

Package information ..................................................................... 26

6.1

SC70-5 (or SOT323-5) package information................................... 27

6.2

MiniSO8 package information ......................................................... 28

6.3

DFN8 2x2 package information....................................................... 29

6.4

QFN16 3x3 package information..................................................... 31

Ordering information..................................................................... 33

Revision history ............................................................................ 34

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