TYPICAL CHARACTERISTICS
(Cont.)
At T
A
= +25°C, +V
CC
= +2.7V, V
REF
= External +2.5V, f
SAMPLE
= 125kHz, and f
CLK
= 16 • f
SAMPLE
= 2MHz, unless otherwise noted.
INTERNAL V
REF
vs V
CC
2.4865
100
INTERNAL V
REF
vs TURN-ON TIME
2.4860
Internal V
REF
(%)
80
No Cap
(52µS)
12-Bit
Settling
V
REF
(V)
2.4855
60
2.4850
40
1µF Cap
(1110µS)
12-Bit
Settling
2.4845
20
2.4840
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
0
0
200
400
600
800
1000
1200
Turn-On Time (µS)
V
CC
(V)
TEMP DIODE VOLTAGE
vs TEMPERATURE (2.7V SUPPLY)
850
TEMP0 DIODE VOLTAGE vs V
SUPPLY
(25°C)
620
TEMP0 Diode Voltage (mV)
800
TEMP Diode Voltage (mV)
618
750
102.7mV
700
650
600
550
500
450
TEMP0
TEMP1
616
132.25mV
614
612
610
–40
–35
–30
–25
–20
–15
–10
–05
0
05
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
2.7
3.0
V
SUPPLY
(V)
3.3
Temperature (°C)
TEMP1 DIODE VOLTAGE vs V
SUPPLY
(25°C)
732
TEMP1 Diode Voltage (mV)
730
728
726
724
722
2.7
3.0
V
SUPPLY
(V)
3.3
ADS7846
SBAS125H
www.ti.com
7
BURR-BROWN [ BURR-BROWN CORPORATION ]
