Datasheet

ADS7844
8
SBAS100A
www.ti.com
REFERENCE CURRENT vs SAMPLE RATE
750 12525 50 100
Sample Rate (kHz)
Reference Current (µA)
14
12
10
8
6
4
2
0
REFERENCE CURRENT vs TEMPERATURE
20–40 100–20 0 40
Temperature (˚C)
Reference Current (µA)
18
16
14
12
10
8
6
60 80
SUPPLY CURRENT vs +V
CC
3.5252.5 4
+V
CC
(V)
Supply Current (µA)
320
300
280
260
240
220
200
180
4.53
f
SAMPLE
= 12.5kHz
V
REF
= +V
CC
MAXIMUM SAMPLE RATE vs +V
CC
3.5252.5 4
+V
CC
(V)
Sample Rate (Hz)
1M
100k
10k
1k
4.53
V
REF
= +V
CC
TYPICAL PERFORMANCE CURVES (CONT)
At T
A
= +25°C, +V
CC
= +2.7V, V
REF
= +2.5V, f
SAMPLE
= 125kHz, and f
CLK
= 16 • f
SAMPLE
= 2MHz, unless otherwise noted.