MK61FX512VMD12 FREESCALE [Freescale Semiconductor, Inc], MK61FX512VMD12 Datasheet - Page 54

• Manufacturer Part Number: MK61FX512VMD12
• Description: K61 Sub-Family
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Peripheral operating requirements and behaviors
1. Typical values assume V
2. This current is a PGA module adder, in addition to ADC conversion currents.
3. Between IN+ and IN-. The PGA draws a DC current from the input terminals. The magnitude of the DC current is a strong
4. Gain = 2
5. After changing the PGA gain setting, a minimum of 2 ADC+PGA conversions should be ignored.
6. Limit the input signal swing so that the PGA does not saturate during operation. Input signal swing is dependent on the
54
V
Symbol
SINAD
ENOB
SFDR
function of input common mode voltage (V
PGA reference voltage and gain setting.
PP,DIFF
SNR
THD
E
IL
PGAG
Input leakage
error
Maximum
differential input
signal swing
Signal-to-noise
ratio
Total harmonic
distortion
Spurious free
dynamic range
Effective number
of bits
Signal-to-noise
plus distortion
ratio
Description
Table 31. 16-bit ADC with PGA characteristics (continued)
DDA
=3.0V, Temp=25°C, f
All modes
See ENOB
Conditions
K61 Sub-Family Data Sheet, Rev. 4, 10/2012.
• Gain=1
• Gain=64
• Gain=1
• Gain=64
• Gain=1
• Gain=64
• Gain=1, Average=4
• Gain=1, Average=8
• Gain=64, Average=4
• Gain=64, Average=8
• Gain=1, Average=32
• Gain=2, Average=32
• Gain=4, Average=32
• Gain=8, Average=32
• Gain=16, Average=32
• Gain=32, Average=32
• Gain=64, Average=32
CM
) and the PGA gain.
ADCK
=6MHz unless otherwise stated.
where V
11.6
12.8
11.0
Min.
8.0
7.2
6.3
7.9
7.3
6.8
6.8
7.5
80
52
85
49
85
53
6.02 × ENOB + 1.76
X
I
= V
In
Typ.
13.4
13.6
14.5
14.3
13.8
13.1
12.5
11.5
10.6
100
105
× R
9.6
9.6
90
66
95
88
REFPGA
1
AS
× 0.583
Max.
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Freescale Semiconductor, Inc.
Unit
mV
bits
bits
bits
bits
bits
bits
bits
bits
bits
bits
bits
dB
dB
dB
dB
dB
dB
dB
V
mode,f
MCU's voltage
Average=32,
Average=32,
I
Average=32
(refer to the
and current
In
differential
differential
differential
differential
f
f
operating
in
in
ratings)
= leakage
current
mode,
mode,
mode,
Notes
=100Hz
=100Hz
16-bit
16-bit
16-bit
16-bit
in
6
=100Hz