TSV6191 datasheet(9/18 Pages) STMICROELECTRONICS

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DocID17974 Rev 2

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TSV619x, TSV619xA

Application information

3.1

Operating voltages

The TSV619x can operate from 1.5 to 5.5 V. Their parameters are fully specified for 1.8, 3.3,

and 5 V power supplies. However, the parameters are very stable in the full VCC range and

several characterization curves show the TSV619x characteristics at 1.5 V. Additionally, the

main specifications are guaranteed in extended temperature ranges from -40 °C to 85 °C.

3.2

Rail-to-rail input

The TSV619x are built with two complementary PMOS and NMOS input differential pairs.

The devices have a rail-to-rail input, and the input common mode range is extended from

VCC- -0.1 V to VCC+ +0.1 V. The transition between the two pairs appears at VCC+ -0.7 V. In

the transition region, the performance of CMRR, PSRR, Vio and THD is slightly degraded

(as shown in Figure 13 and Figure 14 for Vio vs. Vicm).

The device is guaranteed without phase reversal.

3.3

Rail-to-rail output

The operational amplifiers’ output levels can go close to the rails: less than 35 mV above

GND rail and less than 35 mV below VCC rail when connected to 10 kΩ load to VCC/2.

3.4

PCB layouts

For correct operation, it is advised to add 10 nF decoupling capacitors as close as possible

to the power supply pins.

Figure 13. Input offset voltage vs input common

mode at VCC = 1.5 V

Figure 14. Input offset voltage vs input common

mode at VCC = 5 V

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

Input Common Mode Voltage (V)

0.0

1.0

2.0

3.0

4.0

5.0

-1.0

-0.8

-0.6

-0.4

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

Input Common Mode Voltage (V)

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