TSV631ILT datasheet(11/23 Pages) STMICROELECTRONICS

11 / 23 page

TSV630 - TSV631

Application information

11/23

Application information

3.1

Operating voltages

The TSV630 and TSV631 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 TSV63x characteristics at 1.5 V.

Additionally, the main specifications are guaranteed in extended temperature ranges from

-40° C to +125° C.

3.2

Rail-to-rail input

The TSV630 and TSV631 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 VDD -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 16 and Figure 17 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: 35 mV maximum above

and below the rail when connected to a 10 k

Ω resistive load to VCC/2.

Figure 16.

Input offset voltage vs input

common mode at VCC = 1.5 V

Figure 17.

Input offset voltage vs input

common mode at VCC = 5 V

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

-0.5

-0.4

-0.3

-0.2

-0.1

0.0

0.1

0.2

0.3

0.4

0.5

Input Common Mode Voltage (V)

0.0

1.0

2.0

3.0

4.0

5.0

-0.4

-0.2

0.0

0.2

0.4

Input Common Mode Voltage (V)

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