K32L2AX datasheet(64/96 Pages) NXP

64 / 96 page

Table 35. 16-bit ADC characteristics (VREFH = VDDA, VREFL = VSSA) (continued)

Symbol Description

Conditions1

Min.

Typ.2

Max.

Unit

Notes

• <12-bit modes

—

±0.5

–0.7 to

+0.5

EFS

Full-scale error

• 12-bit modes

• <12-bit modes

—

–4

–1.4

–5.4

–1.8

LSB4

VADIN = VDDA5

Quantization error

• 16-bit modes

• ≤13-bit modes

—

–1 to 0

—

±0.5

LSB4

ENOB

Effective number of

bits

16-bit differential mode

• Avg = 32

• Avg = 4

16-bit single-ended mode

• Avg = 32

• Avg = 4

12.8

11.9

12.2

11.4

14.5

13.8

13.9

13.1

—

bits

SINAD

Signal-to-noise plus

distortion

See ENOB

6.02 × ENOB + 1.76

THD

Total harmonic

distortion

16-bit differential mode

• Avg = 32

16-bit single-ended mode

• Avg = 32

—

-94

-85

—

SFDR

Spurious free

dynamic range

16-bit differential mode

• Avg = 32

16-bit single-ended mode

• Avg = 32

—

EIL

Input leakage error

IIn × RAS

IIn = leakage

current

(refer to the

MCU's

voltage and

current

operating

ratings)

Temp sensor slope

Across the full temperature

range of the device

1.55

1.62

1.69

mV/°C

VTEMP25 Temp sensor

voltage

25 °C

706

716

726

1. All accuracy numbers assume the ADC is calibrated with VREFH = VDDA

2. Typical values assume VDDA = 3.0 V, Temp = 25 °C, fADCK = 2.0 MHz unless otherwise stated. Typical values are for

reference only and are not tested in production.

Peripheral operating requirements and behaviors

K32 L2A Microcontroller with 512 KB Flash and 128 KB SRAM, Rev. 3, 02/2021

NXP Semiconductors

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