K22P80M50SF4 Datasheet, PDF (36/60 Pages) Freescale Semiconductor, Inc – K22 Sub-Family Data Sheet

Peripheral operating requirements and behaviors
Table 25. 16-bit ADC characteristics (V_REFH = V_DDA, V_REFL = V_SSA) (continued)
Symbol
INL
Description
Integral non-
linearity
Conditions¹
• 12-bit modes
Min.
—
Typ.²
±1.0
Max.
-2.7 to +1.9
-0.7 to +0.5
Unit
LSB⁴
Notes
5
E_FS Full-scale error
E_Q
Quantization
error
• <12-bit modes
• 12-bit modes
• <12-bit modes
• 16-bit modes
• ≤13-bit modes
—
±0.5
—
-4
-5.4
LSB⁴
V_ADIN =
—
-1.4
-1.8
V_DDA
5
—
-1 to 0
—
LSB⁴
—
—
±0.5
ENOB
Effective number 16-bit differential mode
of bits
• Avg = 32
• Avg = 4
6
12.8
14.5
—
bits
11.9
13.8
—
bits
16-bit single-ended mode
• Avg = 32
• Avg = 4
12.2
13.9
—
bits
11.4
13.1
—
bits
SINAD
Signal-to-noise
plus distortion
See ENOB
6.02 × ENOB + 1.76
dB
THD
Total harmonic
distortion
16-bit differential mode
• Avg = 32
7
—
–94
—
dB
16-bit single-ended mode
• Avg = 32
—
-85
—
dB
SFDR
Spurious free
dynamic range
16-bit differential mode
• Avg = 32
7
82
95
—
dB
16-bit single-ended mode
• Avg = 32
E_IL
Input leakage
error
V_TEMP25
Temp sensor
slope
Temp sensor
voltage
Across the full temperature
range of the device
25 °C
78
90
—
I_In × R_AS
—
1.715
—
—
719
—
dB
mV
mV/°C
I_In =
leakage
current
(refer to
the MCU's
voltage
and current
operating
ratings)
mV
1. All accuracy numbers assume the ADC is calibrated with V_REFH = V_DDA
K22 Sub-Family Data Sheet Data Sheet, Rev. 3, 08/2012.
36
Freescale Semiconductor, Inc.