K61P256M120SF3_1210 Datasheet, PDF (51/94 Pages) Freescale Semiconductor, Inc – K61 Sub-Family

Peripheral operating requirements and behaviors
6.6 Analog
6.6.1 ADC electrical specifications
The 16-bit accuracy specifications listed in Table 29 and Table 30 are achievable on the
differential pins ADCx_DP0, ADCx_DM0.
The ADCx_DP2 and ADCx_DM2 ADC inputs are connected to the PGA outputs and are
not direct device pins. Accuracy specifications for these pins are defined in Table 31 and
Table 32.
All other ADC channels meet the 13-bit differential/12-bit single-ended accuracy
specifications.
6.6.1.1 16-bit ADC operating conditions
Table 29. 16-bit ADC operating conditions
Symbol
V_DDA
ΔV_DDA
ΔV_SSA
V_REFH
V_REFL
V_ADIN
Description
Supply voltage
Supply voltage
Ground voltage
ADC reference
voltage high
ADC reference
voltage low
Input voltage
Conditions
Absolute
Delta to V_DD (V_DD-V_DDA)
Delta to V_SS (V_SS - V_SSA)
• 16-bit differential mode
• All other modes
V_ADIN
C_ADIN
Input voltage
Input capacitance
• 16-bit mode
• 8-/10-/12-bit modes
Min.
1.71
-100
-100
1.13
V_SSA
VREFL
VREFL
V_REFL
—
—
Typ.¹
—
0
0
V_DDA
V_SSA
—
—
—
8
4
Max.
3.6
+100
+100
V_DDA
V_SSA
31/32 *
VREFH
VREFH
V_REFH
10
5
R_ADIN
R_AS
Input resistance
Analog source
resistance
13-/12-bit modes
f_ADCK < 4 MHz
—
2
5
—
—
5
f_ADCK
f_ADCK
ADC conversion
clock frequency
ADC conversion
clock frequency
≤ 13-bit mode
16-bit mode
1.0
—
18.0
2.0
—
12.0
Table continues on the next page...
Unit
V
mV
mV
V
V
V
V
pF
kΩ
kΩ
MHz
MHz
Notes
2
2
3
4
4
K61 Sub-Family Data Sheet, Rev. 4, 10/2012.
Freescale Semiconductor, Inc.
51