Datasheet

"#$%$&
SBAS203J − MARCH 2002 − REVISED JANUARY 2008
www.ti.com
19
TYPICAL CHARACTERISTICS (Continued)
AV
DD
= +5V, DV
DD
= +5V, f
OSC
= 8MHz, PGA = 1, f
MOD
= 15.625Hz, Bipolar, Buffer ON, and V
REF
= (REF IN+) − (REF IN−) = +2.5V, unless otherwise specified.
DIGITAL SUPPLY CURRENT vs SUPPLY VOLTAGE
Supply Voltage (V)
Digital Supply Current (mA)
2.5 3.0 3.5 4.0 4.5 5.0 5.5
20
15
10
5
0
−
40 C
+85 C
+25 C
°
°
°
NORMALIZED GAIN vs PGA
PGA Setting
Normalized Gain (%)
142168 1286432
101
100
99
98
97
96
Buffer ON
Buffer OFF
CMOS DIGITAL OUTPUT
Output Current (mA)
Output Voltage (V)
02010 4030 706050
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
3V
Low
Output
5V
Low
Output
5V
3V
200
150
100
50
0
HISTOGRAM OF
TEMPERATURE SENSOR VALUES
Temperature Sensor Value (mV)
111.0 111.5 112.0 112.5 113.0 113.5 114.0 114.5 115.0 115.5 116.0 116.5 117.0
Number of Occurrences
5
3
1
−
1
−
3
−
5
−
7
−
9
−
11
−
13
−
15
Internal V
REF
(V)
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
AV
DD
(V)
1.25V
2.5V
INTERNAL V
REF
vs AV
DD