Datasheet

ADS1217
10
SBAS260C
www.ti.com
TYPICAL CHARACTERISTICS (Cont.)
AV
DD
= +5V, DV
DD
= +5V, f
OSC
= 2.4576MHz, PGA = 1, R
DAC
= 150kΩ, f
DATA
= 10Hz, and V
REF
= +2.5V, unless otherwise specified.
2.55
2.50
2.45
V
REFOUT
vs LOAD CURRENT
V
REFOUT
Current Load (mA)
–0.5 0 0.5 1.0 1.5 2.0 2.5
V
REFOUT
(V)
200
170
140
110
80
50
20
–10
–40
–70
–100
OFFSET DAC: OFFSET vs TEMPERATURE
Offset (ppm of FSR)
Temperature (°C)
–50 –30 10–10 30 50 70 90
270
240
210
180
150
CURRENT vs TEMPERATURE
Current (µA)
I
ANALOG
I
DIGITAL
Temperature (°C)
–60 –30 0 30 60 90 120
400
350
300
250
200
150
100
50
0
DIGITAL CURRENT
V
DD
(V)
2.5 3.0 3.5 4.0 4.5 5 5.5
Current (µA)
Normal
4.91MHz
SLEEP
4.91MHz
SLEEP
2.45MHz
Normal
2.45MHz
5000
4000
3000
2000
1000
0
HISTOGRAM OF OUTPUT DATA
ppm of FS
–2.0
Number of Occurrences
–1.5 –1.0 –0.5 0 0.5 1.0 1.5 2.0
900
800
700
600
500
400
300
200
100
0
A/D CURRENT vs PGA
PGA Setting
1824 3216 12864
I
ADC
(µA)
AV
DD
= 5V, Buffer = ON
AV
DD
= 3V, Buffer = ON
Buffer = OFF
Buffer = OFF