ADUCM360 AD [Analog Devices], ADUCM360 Datasheet - Page 6

• Manufacturer Part Number: ADUCM360
• Description: Low Power Precision Analog Microcontroller
• Manufacturer: AD [Analog Devices]

ADuCM360/ADuCM361
Parameter
Common mode Voltage, Vcm
TEMPERATURE SENSOR
VOLTAGE REFERENCE
ADC Precision Reference
Input Current
Average Input Current Drift
Common-Mode Rejection DC
Common-Mode Rejection
Normal-Mode Rejection
50 Hz/60 Hz
Voltage Output at 25°C
Voltage TC
Accuracy
GROUND SWITCH
Internal V
Initial Accuracy
Reference Temperature
Power Supply Rejection
On ADC Input
50 Hz/60 Hz
On ADC Input
Coefficient (Tempco)
Ron
Allowable Current
REF
1,9
1
1,8
1
1
1
1
1
Test Conditions/Comments
Gain = 128 (AVDD >=2.0V)
Vcm=(AIN(+)+AIN(-))/2,
Gain=2 to 128
Input current will be higher
when Vcm <0.5V
Gain = 1, Buffered mode
(excluding pins with Vbias)
Gain >1, Buffered mode
(excluding pins with Vbias)
Unbuffered mode. Input current
will vary with input voltage
Buffered mode:
AIN4, AIN5, AIN6, AIN7
AIN8, AIN9, AIN10, AIN11
Unbuffered mode
ADC Gain =2 to 128
50 Hz/60 Hz ± 1 Hz,
16.7 Hz update rate, chop on
50 Hz update rate, chop off
ADC Gain =1
ADC Gain =2 to 128
50 Hz/60 Hz ± 1 Hz, 16.6 Hz f
chop on, 50 Hz f
After user calibration
MCU in power down or standby
mode before measurement
With 20K resistor off – direct
short to ground
Measured at T
AIN0, AIN1, AIN2, AIN3
ADC Gain =1
(AVDD <2.0V)
(AVDD <2.0V)
A
= 25°C
ADC/
chop off
Rev. Pr R Page 6 of 21
ADC/
Min
AGND
70
80
97
90
60
-0.05
−15
Typ
1
2
500
±5
±16
±9
±250
100
80
82.1
250
6
12
20
1.2
±8
100
Preliminary Technical Data
Max
±9.375
±6.64
±4.6875
0.05
+15
Unit
mV
mV
mV
V
nA
nA
nA/V
pA/°C
pA/°C
pA/°C
pA/V/°C
dB
dB
dB
dB
mV
mV/°C
°C
Ohms
mA
V
%
ppm/°C
dB