XR18910 Datasheet, PDF (3/19 Pages) Exar Corporation – 8:1 Sensor Interface Analog Front End

XR18910
Electrical Characteristics
T_A = 25°C, V_CC = 3.3V, V_DD = 1.8V, R_L = 10kΩ to 1.5V, G = 760, unless otherwise noted.
Symbol Parameter
DC Performance
V_IO
d_VIO
I_B
I_OS
PSRR
Input offset voltage
Input offset voltage average drift
Input bias current
Input offset current
Power supply rejection ratio
Gain = 2
Gain = 20
Gain = 40
Gain = 80
G
Gain = 150
Gain = 300
Gain = 600
Gain = 760
G_E
Gain error
Gain error vs temperature
I_SVCC
I_SVCCD
I_SVDD
I_STOTAL
V_CC supply current
Disable V_CC supply current
V_DD supply current
Total supply current
I_SDTOTAL Total disable supply current
Input Characteristics
Input impedance
Conditions
Input referred
V_CC = 2.7V to 5V
Nominal, refer to Gain Register Table (pg. 7)
No load to output, no load to LDO
No load to output, no load to LDO
No load to output, no load to LDO, I²C running
No load to output, no load to LDO
No load to output, no load to LDO, LDO DIS
No load to output, no load to LDO, LDO EN
CMIR
Common mode input range
CMRR Common mode rejection ratio
Output Characteristics
V_OUT
Output voltage swing
V_OO
Output offset
Offset DAC
Offset DAC range
Offset monotonicity
LDO
Output voltage
Dropout voltage
Output current
Power supply rejection ratio
Output current sense transimpedance slope
Output current sense range clip
Input referred, V_CM = 0.5 to 2.0V
R_L = 10kΩ to 1.5V
Offset DAC 0 00 0000 0000, G = 2
RTI (referred to input)
1.5k load, LDO bit LOW
1.5k load, LDO bit HIGH
V_CC = 2.8V, LDO = 2.65V, I_LOAD = 10mA
Output referred, V_CC = 3V to 5V, LDO = 2.65V
Output referred, V_CC = 3.3V to 5V, LDO = 3V
Output voltage relative to 1.5V / LDO current, G = 2
G=2
Min
Typ
Max
-3
±0.02
3
3
-100
15
100
-100
1
100
60
91
2.0
20.0
40.0
80.0
150.0
299.9
599.6
759.4
-0.5
0.5
±10
435
530
48
62
22
29
457
559
45
70
91
10¹³ || 11.2
0.5
0.23 to
3.06
2.5
75
88
0.1
0.04 to
3.29
3.1
1.4
1.5
1.6
±560
8
10
-6%
3
+6%
-6%
2.65
+6%
150
10
25
45
63
45
63
0.08
0.1
0.12
18.8
Units
mV
μV/°C
pA
pA
dB
V/V
V/V
V/V
V/V
V/V
V/V
V/V
V/V
%
ppm/°C
μA
μA
μA
μA
μA
μA
Ω || pF
V
dB
V
V
mV
Bits
V
V
mV
mA
dB
dB
V/mA
mA
REV1A
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