MAX11253 Datasheet, PDF (6/51 Pages) Maxim Integrated Products – Longer Battery Life for Portable Applications

MAX11253
16-Bit, 6-Channel, 64ksps, 6.2nV/√Hz PGA,
Delta-Sigma ADC with SPI Interface
Electrical Characteristics (continued)
(V_AVDD = 3.6V, V_AVSS = 0V, V_DVDD = 2.0V to 3.6V, V_REFP - V_REFN = V_AVDD, DATA RATE = 1ksps, PGA low-noise mode, single-cycle
conversion mode (SCYCLE = 1). T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at T_A = +25°C.)(Note 2)
PARAMETER
Positive I/O Supply Voltage
CAPREG Supply Voltage
Analog Supply Current
DVDD Operating Current
SYMBOL
CONDITIONS
MIN
CAPREG not driven by external
supply
2.0
V_DVDD
DVDD and CAPREG pins
connected together on the circuit
1.7
board
Internal LDO enabled
1.8
V_CAPREG
When CAPREG pin is driven
externally, ensure it is connected
1.7
directly to DVDD pin
Direct
I_AVDD(CNV)
PGA low-power mode
PGA low-noise mode
I_DVDD(CNV)
V_DVDD = 2.0V, LDO enabled
V_DVDD = V_CAPREG = 2.0V,
LDO disabled
TYP
MAX
3.6
2.0
2.0
2.2
3
3.5
4.7
4.2
5.75
0.65
1.1
0.58
UNITS
V
V
mA
mA
AVDD Sleep Current
DVDD Sleep Current
AVDD Standby Current
DVDD Standby Current
I_AVDD(SLP)
I_DVDD(SLP)
I_AVDD(SBY)
I_DVDD(SBY)
V_AVDD = 3.6V, V_AVSS = 0V,
V_DVDD = 2.0V
V_DVDD = 2.0V
V_AVDD = 3.6V, V_AVSS = 0V,
V_DVDD = 2.0V
V_DVDD = 2.0V, LDO enabled
V_DVDD = V_CAPREG = 2.0V,
LDO disabled
1
µA
0.3
2.3
µA
1.5
µA
50
175
µA
2.5
AVDD, DVDD supply
undervoltage lockout
0.8
1.2
1.65
UVLO Threshold Low to High
V_LH
CAPREG supply undervoltage
lockout
0.65
1.0
1.35
V
AVDD, DVDD supply
undervoltage lockout
0.6
1.1
1.55
UVLO Threshold High to Low
V_HL
CAPREG supply undervoltage
lockout
0.45
0.95
1.3
V
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