MSC1210_14 Datasheet, PDF (19/95 Pages) Texas Instruments – Precision Analog-to-Digital Converter (ADC) with 8051 Microcontroller and Flash Memory

MSC1210
www.ti.com
SBAS203J − MARCH 2002 − REVISED JANUARY 2008
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
20
+85°C
15
+25°C
−40°C
10
5
0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Supply Voltage (V)
101
100
99
98
97
96
1
NORMALIZED GAIN vs PGA
Buffer OFF
Buffer ON
2
4
8
16
32
64 128
PGA Setting
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
CMOS DIGITAL OUTPUT
3V
Low
Output
5V
Low
Output
5V
3V
10
20
30
40
50
60
70
Output Current (mA)
HISTOGRAM OF
TEMPERATURE SENSOR VALUES
200
150
100
50
0
Temperature Sensor Value (mV)
INTERNAL V_REF vs AV_DD
5
3
1.25V
1
−1
2.5V
−3
−5
−7
−9
−11
−13
−15
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
AV_DD (V)
19