ADS131B04-Q1
ZHCSMK3B –NOVEMBER 2020 –REVISED NOVEMBER 2021
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6.5 Electrical Characteristics (continued)
minimum and maximum specifications apply from TA = –40°C to +125°C; typical specifications are at TA = 25°C; all
specifications are at AVDD = 3.3 V, DVDD = 3.3 V, external clock, fCLKIN = 8.192 MHz, high-resolution mode, all channels, all
gains, data rate = 4 kSPS, all channels enabled, and global-chop mode disabled (unless otherwise noted)
PARAMETER
TEST CONDITIONS
AVDD at dc, global-chop disabled, gain = 1
AVDD at dc, global-chop enabled, gain = 1
DVDD at dc, global-chop disabled, gain = 1
DVDD at dc, global-chop enabled, gain = 1
Gain = 1
MIN
TYP
MAX UNIT
81
116
109
117
5.42
1.29
PSRR
Power-supply rejection ratio
dB
µVRMS
Gain = 8
Input-referred noise
Crosstalk
All gains, all data rates
See 表7-1
During fast start-up
1.5
mVRMS
dB
fIN = 50 Hz or 60 Hz
–120
INTERNAL VOLTAGE REFERENCE
VREF Internal reference voltage
INTERNAL OSCILLATOR
1.2
V
fOSC
Frequency
8.192
±0.5%
0.2%
MHz
Accuracy
2.5%
–5%
Frequency long-term drift
1000 hours at TA = 85°C
DIGITAL INPUTS/OUTPUTS
VIL
Logic input level, low
Logic input level, high
Logic output level, low
Logic output level, high
Input current
DGND
0.2 DVDD
V
V
VIH
VOL
VOH
IIN
0.8 DVDD
DVDD
0.2 DVDD
V
IOL = –1 mA
IOH = 1 mA
0.8 DVDD
V
DGND < VDigital Input < DVDD
1
µA
–1
POWER SUPPLY
High-resolution mode, gain = 1, 2
High-resolution mode, gain = 4 to 128
Low-power mode, gain = 1, 2
Low-power mode, gain = 4 to 128
Very-low-power mode, gain = 1, 2
Very-low-power mode, gain = 4 to 128
Standby mode
5.6
6.4
2.8
3.2
1.4
1.6
0.4
140
0.4
0.2
0.1
1.2
19.8
22.4
9.9
5
6.8
8
3.4
mA
µA
IAVDD
Analog supply current
2
Internal oscillator
High-resolution mode
0.5
0.3
0.2
Low-power mode
mA
µA
IDVDD
Digital supply current(1)
Power dissipation
Very-low-power mode
Standby mode(2)
High-resolution mode, gain = 1, 2
High-resolution mode, gain = 4 to 128
Low-power mode, gain = 1, 2
Very-low-power mode, gain = 1, 2
24.1
28.1
12.2
7.3
PD
mW
(1) Currents measured with SPI idle.
(2) External clock stopped.
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