TYPICAL CHARACTERISTICS
(Cont.)
All specification V
DD
= +5V, f
OSC
= 2.4576MHz, PGA = 1, f
DATA
= 15Hz, and V
REF
≡
(REF IN+) – (REF IN–) = +2.5V, unless otherwise specified.
OFFSET vs TEMPERATURE
(Cal at 25°C)
50
PGA1
0
PGA16
GAIN vs TEMPERATURE
(Cal at 25°C)
1.00010
1.00006
Gain (Normalized)
1.00002
0.99998
0.99994
0.99990
0.99986
Offset (ppm of FS)
–50
PGA64
PGA128
–150
–100
–200
–50
–30
–10
10
30
50
70
90
Temperature (°C)
–50
–30
–10
10
30
50
70
90
Temperature (°C)
INTEGRAL NONLINEARITY vs INPUT SIGNAL
10
8
6
INL (ppm of FS)
CURRENT vs TEMPERATURE
(Buffer Off)
260
–40°C
250
240
4
2
0
–2
–4
–6
–8
Current (µA)
+85°C
230
220
210
200
190
+25°C
–10
–2.5 –2.0 –1.5 –1.0 –0.5
0
V
IN
(V)
0.5
1.0
1.5
2.0
2.5
–50
–30
–10
10
30
50
70
90
Temperature (°C)
CURRENT vs VOLTAGE
350
300
250
Current (µA)
SUPPLY CURRENT vs SUPPLY
300
Normal
4.91MHz
Normal
2.45MHz
I
DIGITAL
(µA)
250
200
150
100
Power Down
50
Power Down
0
200
150
100
50
0
–50
3.0
3.25
3.5
3.75
4.0
V
DD
(V)
4.25
4.5
4.75
5.0
SLEEP
4.91MHz
SLEEP
2.45MHz
SLEEP
4.91MHz
Normal
4.91MHz
Normal
2.45MHz
SLEEP
2.45MHz
4.0
V
DD
(V)
4.5
5.0
3.0
3.5
8
ADS1242, 1243
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TI [ TEXAS INSTRUMENTS ]
