OA1ZHA Datasheet, PDF (2/35 Pages) STMicroelectronics – Fitness and healthcare

Contents
OA1ZHA, OA2ZHA, OA4ZHA
Contents
1 Package pin connections................................................................ 3
2 Absolute maximum ratings and operating conditions ................. 4
3 Electrical characteristics ................................................................ 5
4 Electrical characteristic curves .................................................... 11
5 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
6 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
7 Ordering information..................................................................... 33
8 Revision history ............................................................................ 34
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DocID025994 Rev 2