ADuCM362/ADuCM363 Data Sheet
Rev. 0| Page 10 of 24
Parameter Test Conditions/Comments Min Typ Max Unit
POWER REQUIREMENTS
Power Supply Voltages, V
DD
AVDD, IOVDD 1.8 3.6 V
Power Consumption
I
DD
(MCU Active Mode)
16, 17
Processor clock rate = 16 MHz;
all peripherals on (CLKSYSDIV = 0)
5.5 mA
Processor clock rate = 8 MHz;
all peripherals on (CLKSYSDIV = 1)
3 mA
Processor clock rate = 500 kHz; both
ADCs on (input buffers off) with PGA
gain = 4, 1 × SPI port on, all timers on
1 mA
I
DD
(MCU Powered Down)
Full temperature range, total halt mode
(Mode 4)
4 A
I
DD
, Total (ADC0)
17
PGA enabled, gain ≥ 32 320 A
PGA Gain = 4, 8, or 16, PGA only 130 A
Gain = 32, 64, or 128, PGA only 180 A
Input Buffers 2 × input buffers = 70 A 70 A
Digital Interface and Modulator 70 A
I
DD
(ADC1) Input buffers off, gain = 4, 8, or 16 only 200 A
External Reference Input Buffers 60 A each 120 A
1
These numbers are not production tested, but are guaranteed by design and/or characterization data at production release.
2
Tested at gain = 4 after initial offset calibration.
3
Measured with an internal short. A system zero-scale calibration removes this error.
4
A recalibration at any temperature removes these errors.
5
The long term stability specification is noncumulative. The drift in subsequent 1000 hour periods is significantly lower than in the first 1000 hour period.
6
These numbers do not include internal reference temperature drift.
7
Factory calibrated at gain = 1.
8
System calibration at a specific gain removes the error at this gain.
9
Input current is measured with one ADC measuring a channel. If both ADCs measure the same input channel, the input current increases (approximately doubles).
10
Measured using the box method.
11
Reference DAC linearity is calculated using a reduced code range of 0x0AB to 0xF30.
12
Measured using a low-pass filter with R = 1 kΩ, C = 100 nF.
13
Endurance is qualified to 10,000 cycles as per JEDEC Standard 22, Method A117, and is measured at −40°C, +25°C, and +125°C. Typical endurance at 25°C is 170,000 cycles.
14
Retention lifetime equivalent at junction temperature (T
J
) = 85°C as per JEDEC Standard 22, Method A117. Retention lifetime derates with junction temperature.
15
Voltage input levels are relevant only if driving XTAL input from a voltage source. If a crystal is connected directly, the internal crystal interface determines the
common-mode voltage.
16
Typical additional supply current consumed during Flash/EE memory program and erase cycles is 7 mA.
17
Total I
DD
for ADC includes figures for PGA ≥ 32, input buffers, digital interface, and the Σ-∆ modulator.
Data Sheet ADuCM362/ADuCM363
Rev. 0 | Page 11 of 24
RMS NOISE RESOLUTION OF ADC0 AND ADC1
Internal Reference (1.2 V)
Table 2 through Table 5 provide rms noise specifications for ADC0 and ADC1 using the internal reference (1.2 V). Table 2 and Table 3 list
the rms noise for both ADCs with various gain and output update rate values. Table 4 and Table 5 list the typical output rms noise effective
number of bits (ENOB) in normal mode for both ADCs with various gain and output update rate values. (Peak-to-peak ENOB is shown in
parentheses.)
Table 2. RMS Noise vs. Gain and Output Update Rate, Internal Reference (1.2 V), Gain = 1, 2, 4, 8, and 16
Update
Rate (Hz) Chop/Sinc
ADCFLT
Register
Value
RMS Noise (μV)
Gain = 1, ±V
REF
,
ADCxMDE =
0x01
Gain = 2,
±500 mV,
ADCxMDE =
0x11
Gain = 4,
±250 mV,
ADCxMDE =
0x21
Gain = 8,
±125 mV,
ADCxMDE =
0x31
Gain = 16,
±62.5 mV,
ADCxMDE =
0x41
3.53 On/sinc3 0x8E7C 1.05 0.45 0.23 0.135 0.072
30 Off/sinc3 0x007E 2.1 1.37 0.63 0.37 0.22
50 Off/sinc3 0x007D 3.7 1.6 0.83 0.47 0.29
100 Off/sinc3 0x004D 5.45 2.41 1.13 0.63 0.38
488 Off/sinc4 0x100F 10 4.7 2.2 1.3 0.79
976 Off/sinc4 0x1007 13.5 6.5 3.3 1.7 1.1
1953 Off/sinc4 0x1003 19.3 10 4.7 2.6 1.55
3906 Off/sinc4 0x1001 67.0 36 16.6 8.8 4.9
Table 3. RMS Noise vs. Gain and Output Update Rate, Internal Reference (1.2 V), Gain = 32, 64, and 128
Update
Rate (Hz)
Chop/
Sinc
ADCFLT
Register
Value
RMS Noise (μV)
Gain = 32,
1
±62.5 mV,
ADCxMDE =
0x49
Gain = 32,
1, 2
±22.18 mV,
ADCxMDE =
0x51
Gain = 64,
3
±15.625 mV,
ADCxMDE =
0x59
Gain = 64,
3, 4
±10.3125 mV,
ADCxMDE =
0x61
Gain = 128,
5
±7.8125 mV,
ADCxMDE =
0x69
Gain = 128,
5, 6
±3.98 mV,
ADCxMDE =
0x71
3.53 On/sinc3 0x8E7C 0.067 0.064 0.073 0.055 0.058 0.052
30 Off/sinc3 0x007E 0.202 0.2 0.196 0.16 0.174 0.155
50 Off/sinc3 0x007D 0.24 0.24 0.25 0.21 0.21 0.2
100 Off/sinc3 0x004D 0.35 0.32 0.36 0.27 0.31 0.25
488 Off/sinc4 0x100F 0.7 0.67 0.71 0.58 0.62 0.57
976 Off/sinc4 0x1007 0.99 0.91 1.01 0.74 0.83 0.7
1953 Off/sinc4 0x1003 1.78 1.3 1.48 1.15 1.25 1.0
3906 Off/sinc4 0x1001 6.44 2.68 3.59 1.4 2.2 1.4
1
ADCxMDE = 0x49 sets the PGA for a gain of 16 with a modulator gain of 2. The modulator gain of 2 is implemented by adjusting the sampling capacitors into the
modulator. ADCxMDE = 0x51 sets the PGA for a gain of 32 with the modulator gain off. ADCxMDE = 0x49 has slightly higher noise but supports a wider input range.
2
If AVDD < 2.0 V and ADCxMDE = 0x51, the input range is ±17.5 mV.
3
ADCxMDE = 0x59 sets the PGA for a gain of 32 with a modulator gain of 2. The modulator gain of 2 is implemented by adjusting the sampling capacitors into the
modulator. ADCxMDE = 0x61 sets the PGA for a gain of 64 with the modulator gain off. ADCxMDE = 0x59 has slightly higher noise but supports a wider input range.
4
If AVDD < 2.0 V and ADCxMDE = 0x61, the input range is ±8.715 mV.
5
ADCxMDE = 0x69 sets the PGA for a gain of 64 with a modulator gain of 2. The modulator gain of 2 is implemented by adjusting the sampling capacitors into the
modulator. ADCxMDE = 0x71 sets the PGA for a gain of 128 with the modulator gain off. ADCxMDE = 0x69 has slightly higher noise but supports a wider input range.
6
If AVDD < 2.0 V and ADCxMDE = 0x71, the input range is ±3.828 mV.
ADuCM362/ADuCM363 Data Sheet
Rev. 0| Page 12 of 24
Table 4. Typical Output RMS Noise ENOB in Normal Mode, Internal Reference (1.2 V), Gain = 1, 2, 4, 8, and 16
Update
Rate (Hz) Chop/Sinc
ENOB by Input Voltage Range and Gain
1
Gain = 1, ±V
REF
,
ADCxMDE = 0x01
Gain = 2,
±500 mV,
ADCxMDE = 0x11
Gain = 4,
±250 mV,
ADCxMDE = 0x21
Gain = 8,
±125 mV,
ADCxMDE = 0x31
Gain = 16,
±62.5 mV,
ADCxMDE = 0x41
3.53 On/sinc3 21.1 (18.4 p-p) 21.1 (18.4 p-p) 21.1 (18.3 p-p) 20.8 (18.1 p-p) 20.7 (18.0 p-p)
30 Off/sinc3 20.1 (17.4 p-p) 19.5 (16.8 p-p) 19.6 (16.9 p-p) 19.4 (16.6 p-p) 19.1 (16.4 p-p)
50 Off/sinc3 19.3 (16.6 p-p) 19.25 (16.5 p-p) 19.2 (16.5 p-p) 19.0 (16.3 p-p) 18.7 (16.0 p-p)
100 Off/sinc3 18.7 (16.0 p-p) 18.66 (15.9 p-p) 18.75 (16.0 p-p) 18.6 (15.9 p-p) 18.3 (15.6 p-p)
488 Off/sinc4 17.9 (15.2 p-p) 17.7 (15.0 p-p) 17.8 (15.1 p-p) 17.55 (14.8 p-p) 17.3 (14.5 p-p)
976 Off/sinc4 17.4 (14.7 p-p) 17.2 (14.5 p-p) 17.2 (14.5 p-p) 17.2 (14.4 p-p) 16.8 (14.1 p-p)
1953 Off/sinc4 16.9 (14.2 p-p) 16.6 (13.9 p-p) 16.7 (14.0 p-p) 16.55 (13.8 p-p) 16.3 (13.6 p-p)
3906 Off/sinc4 15.1 (12.4 p-p) 14.8 (12.0 p-p) 14.9 (12.2 p-p) 14.8 (12.1 p-p) 14.6 (11.9 p-p)
1
RMS bits are calculated as follows: log
2
((2 × Input Range)/RMS Noise); peak-to-peak (p-p) bits are calculated as follows: log
2
((2 × Input Range)/(6.6 × RMS Noise)).
Table 5. Typical Output RMS Noise ENOB in Normal Mode, Internal Reference (1.2 V), Gain = 32, 64, and 128
ENOB by Input Voltage Range and Gain
1
Update
Rate (Hz)
Chop/Sinc
Gain = 32,
±62.5 mV,
ADCxMDE =
0x49
Gain = 32,
±22.18 mV,
ADCxMDE =
0x51
Gain = 64,
±15.625 mV,
ADCxMDE =
0x59
Gain = 64,
±10.3125 mV,
ADCxMDE =
0x61
Gain = 128,
±7.8125 mV,
ADCxMDE =
0x69
Gain = 128,
±3.98 mV,
ADCxMDE =
0x71
3.53 On/sinc3 19.8 (17.1 p-p) 19.4 (16.7 p-p) 18.7 (16.0 p-p) 18.5 (15.8 p-p) 18.0 (15.3 p-p) 17.2 (14.5 p-p)
30 Off/sinc3 18.2 (15.5 p-p) 17.75 (15.0 p-p) 17.3 (14.6 p-p) 17.0 (14.25 p-p) 16.45 (13.7 p-p) 15.6 (12.9 p-p)
50 Off/sinc3 18.0 (15.2 p-p) 17.5 (14.8 p-p) 16.93 (14.2 p-p) 16.6 (13.86 p-p) 16.2 (13.5 p-p) 15.3 (12.55 p-p)
100 Off/sinc3 17.4 (14.7 p-p) 17.1 (14.35 p-p) 16.4 (13.7 p-p) 16.2 (13.5 p-p) 15.6 (12.9 p-p) 15.0 (12.2 p-p)
488 Off/sinc4 16.4 (13.7 p-p) 16.0 (13.3 p-p) 15.4 (12.7 p-p) 15.1 (12.4 p-p) 14.6 (11.9 p-p) 13.8 (11.0 p-p)
976 Off/sinc4 15.9 (13.2 p-p) 15.6 (12.85 p-p) 14.91 (12.2 p-p) 14.8 (12.0 p-p) 14.2 (11.5 p-p) 13.4 (10.75 p-p)
1953 Off/sinc4 15.1 (12.4 p-p) 15.05 (12.3 p-p) 14.4 (11.6 p-p) 14.1 (11.4 p-p) 13.6 (10.9 p-p) 13.0 (10.2 p-p)
3906 Off/sinc4 13.2 (10.5 p-p) 14.0 (11.3 p-p) 13.1 (10.4 p-p) 13.8 (11.1 p-p) 12.8 (10.1 p-p) 12.5 (9.75 p-p)
1
RMS bits are calculated as follows: log
2
((2 × Input Range)/RMS Noise); peak-to-peak (p-p) bits are calculated as follows: log
2
((2 × Input Range)/(6.6 × RMS Noise)).

ADUCM362BCPZ128RL7

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
ARM Microcontrollers - MCU Cortex M3 + 16K/128K + Dual 24bit SD AFE
Lifecycle:
New from this manufacturer.
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