STM8AL3L8x datasheet(108/131 Pages) STMICROELECTRONICS

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Electrical parameters

STM8AL318x STM8AL3L8x

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DocID027179 Rev 6

In the following table, data are based on characterization results, not tested in production.

Table 54. DAC accuracy

Symbol

Parameter

Conditions

Typ.

Max.(1)

Unit

DNL

Differential non linearity(2)

RL ≥5 kΩ, CL≤50 pF

DACOUT buffer ON(3)

1.5

12-bit

LSB

No load

DACOUT buffer OFF

1.5

INL

Integral non linearity(4)

RL ≥5 kΩ, CL≤ 50 pF

DACOUT buffer ON(3)

No load

DACOUT buffer OFF

Offset

Offset error(5)

RL ≥5 kΩ, CL≤ 50 pF

DACOUT buffer ON(3)

±10

±25

No load

DACOUT buffer OFF

±5

±8

Offset1

Offset error at Code 1 (6)

DACOUT buffer OFF

±1.5

±5

Gain error

Gain error(7)

RL ≥5 kΩ, CL≤ 50 pF

DACOUT buffer ON(3)

+0.1/-0.2 +0.2/-0.5

No load

DACOUT buffer OFF

+0/-0.2

+0/-0.4

TUE

Total unadjusted error

RL ≥5 kΩ, CL≤ 50 pF

DACOUT buffer ON(3)

12-bit

LSB

No load -DACOUT buffer OFF

1. Not tested in production.

2. Difference between two consecutive codes - 1 LSB.

3. In 48-pin package devices the DAC2 output buffer must be kept off and no load must be applied on the DAC_OUT2 output.

4. Difference between measured value at Code i and the value at Code i on a line drawn between Code 0 and last Code 1023.

5. Difference between the value measured at Code (0x800) and the ideal value = VREF+/2.

6. Difference between the value measured at Code (0x001) and the ideal value.

7. Difference between the ideal slope of the transfer function and the measured slope computed from Code 0x000 and 0xFFF

when buffer is ON, and from Code giving 0.2 V and (VDDA -0.2) V when buffer is OFF.

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