ISL12022MR5421 Datasheet, PDF (9/29 Pages) Intersil Corporation – Low Power RTC with Battery Backed SRAM, Integrated 5ppm

ISL12022MR5421
Typical Performance Curves Temperature is +25°C unless otherwise specified.
1050
1600
1000
1400
950
900
850
800
1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
V_BAT VOLTAGE (V)
FIGURE 2. I_BAT vs V_BAT (V_DD = 0V)
1200
V_BAT = 5.5V
1000
800
V_BAT = 3.0V
V_BAT = 1.8V
600
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
FIGURE 3. I_BAT vs TEMPERATURE (V_DD = 0V)
6
5
V_DD = 5.5V
4
V_DD = 2.7V
3
VDD = 3.3V
2
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
FIGURE 4. I_DD1 vs TEMPERATURE
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.02.7
3.2
3.7
4.2
4.7
5.2
V_DD (V)
FIGURE 5. I_DD1 vs V_DD
5
4
3
2
1
0
V_BAT = 5.5V
-1
V_DD = 2.7V
-2
-3
V_DD = 3.3V
-4
-5
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
FIGURE 6. OSCILLATOR ERROR vs TEMPERATURE
6
5
V_BAT = 5.5V
4
V_DD = 3.3V
3
V_DD = 2.7V
2
0.01
0.1
1
10 100 1k
FREQUENCY OUTPUT (Hz)
FIGURE 7. F_OUT vs I_DD
10k 1M
9
FN7576.1
June 4, 2010