TSX7192

Application information

DocID027196 Rev 1

15/25

4

Application information

4.1

Operating voltages

The TSX7192 device can operate from 2.7 to 16 V. The parameters are fully specified for

range. Additionally, the main specifications are guaranteed in extended temperature ranges

from -40 to +125 °C.

4.2

Input pin voltage ranges

The TSX7192 device has internal ESD diode protection on the inputs. These diodes are

connected between the input and each supply rail to protect the input MOSFETs from

electrical discharge.

If the input pin voltage exceeds the power supply by 0.5 V, the ESD diodes become

conductive and excessive current can flow through them. Without limitation this over

current can damage the device.

In this case, it is important to limit the current to 10 mA, by adding resistance on the input

pin, as described in Figure 30.

Figure 30: Input current limitation

4.3

Rail-to-rail input

The TSX7192 device has a rail-to-rail input, and the input common mode range is extended

4.4

Rail-to-rail output

The operational amplifier output levels can go close to the rails: to a maximum of 40 mV

above and below the rail when connected to a 10 kΩ resistive load to V

9R

2

R

2

Vcc

Vin

R

1