STM32F328C8 datasheet(98/109 Pages) STMICROELECTRONICS

98 / 109 page

Electrical characteristics

STM32F328C8

98/109

DocID026351 Rev 3

PGA gain

Non inverting gain value

-2

-4

-8

-16

Rnetwork

R2/R1 internal resistance values in

PGA mode (2)

Gain=2

5.4/5.4

Gain=4

16.2/5.4

Gain=8

37.8/5.4

Gain=16

40.5/2.7

PGA gain error PGA gain error

-1%

Ibias

OPAMP input bias current

±0.2(3)

µA

PGA BW

PGA bandwidth for different non

inverting gain

PGA Gain = 2,

Cload = 50pF,

Rload = 4 KΩ

-4

MHz

PGA Gain = 4,

Cload = 50pF,

Rload = 4 KΩ

-2

PGA Gain = 8,

Cload = 50pF,

Rload = 4 KΩ

-1

PGA Gain = 16,

Cload = 50pF,

Rload = 4 KΩ

-0.5

Voltage noise density

@ 1KHz, Output

loaded with

4 K

-109

@ 10KHz,

Output loaded

with 4 K

-43

1. Guaranteed by design, not tested in production.

2. R2 is the internal resistance between OPAMP output and OPAMP inverting input.

R1 is the internal resistance between OPAMP inverting input and ground.

The PGA gain =1+R2/R1

3. Mostly TTa I/O leakage, when used in analog mode.

Table 63. Operational amplifier characteristics(1) (continued)

Symbol

Parameter

Condition

Min.

Typ.

Max.

Unit

-----------

STM32F328C8 Datasheet(PDF) 98 Page - STMicroelectronics

STM32F328C8 Datasheet(HTML) 98 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL