LDC1101 Datasheet, PDF (7/55 Pages) Texas Instruments – 1.8-V High-Resolution, High-Speed Inductance-to-Digital Converter

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7.8 Typical Characteristics
2.6
2.5
V_DD = 1.8 V
V_DD = 2.1 V
2.4
V_DD = 2.4 V
V_DD = 2.7 V
2.3
V_DD = 3.0 V
2.2
V_DD = 3.3 V
2.1
2
1.9
1.8
1.7
1.6
-40
0
40
80
120
Temperature (°C)
D001
Not including sensor current, default register settings.
Figure 3. I_DD vs Temperature
3.35
VDD = 1.8 V
3.3
VDD = 2.7 V
VDD = 3.3 V
3.25
3.2
3.15
3.1
3.05
3
2.95
8
9 10 11 12 13 14 15 16
f_CLKIN (MHz)
D003
Including sensor current. 13-mm diameter sensor 0.1-mm
spacing/0.1-mm trace width/ 4-layer 28 turns, f_SENSOR = 2 MHz,
RP_SET = 0x07, TX1 = 0x50, TC2 = 0x80, RCOUNT = 0xFFFF,
RESP_TIME = 6144
Figure 5. Supply Current (mA) vs ƒ_CLKIN (MHz) at 25°C
300
250
200
150
100
-40°C
-20°C
50
25°C
100°C
125°C
0
1.7
2
2.3
2.6
2.9
3.2
3.5
V_DD (V)
D005
Figure 7. I_DD Sleep Mode vs V_DD
LDC1101
SNOSD01C – MAY 2015 – REVISED FEBRUARY 2016
2.5
2.4
2.3
2.2
2.1
2
1.9
1.8
1.7
1.6
-40°C
100°C
1.5
-20°C
25°C
125°C
1.4
1.7
2
2.3
2.6
2.9
3.2
3.5
V_DD (V)
D002
Not including sensor current, default register settings.
Figure 4. I_DD vs V_DD
300
V_DD = 1.8 V
V_DD = 2.1 V
250
V_DD = 2.4 V
V_DD = 2.7 V
200
V_DD = 3.0 V
V_DD = 3.3 V
150
100
50
0
-40
0
40
80
120
Temperature (°C)
D004
Figure 6. I_DD Sleep Mode vs Temperature
14
V_DD = 1.8 V
12
V_DD = 2.1 V
V_DD = 2.4 V
V_DD = 2.7 V
10
V_DD = 3.0 V
V_DD = 3.3 V
8
6
4
2
0
-40
0
40
80
120
Temperature (°C)
D006
Figure 8. I_DD Shutdown vs Temperature
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