Datasheet

ADS1253
SBAS199B
4
www.ti.com
RMS NOISE vs TEMPERATURE
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
RMS Noise (ppm of FS)
–40 –20 0 20 40 60 80 100
Temperature (°C)
20.0
19.8
19.6
19.4
19.2
19.0
18.8
18.6
18.4
18.2
18.0
EFFECTIVE RESOLUTION vs TEMPERATURE
Temperature (°C)
–40 –20 0 20 40 60 80 100
Effective Resolution (Bits)
18
16
14
12
10
8
6
4
2
0
V
REF
Voltage (V)
0.50 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
RMS Noise (µV)
RMS NOISE vs V
REF
VOLTAGE
14
12
10
8
6
4
2
0
V
REF
Voltage (V)
0 1.0 1.50.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
RMS Noise (ppm of FS)
RMS NOISE vs V
REF
VOLTAGE
2.0
1.8
1.6
1.4
1.2
1.0
100 1k 10k 100k
RMS NOISE vs DATA OUTPUT RATE
RMS Noise (ppm of FS)
Data Output Rate (Hz)
EFFECTIVE RESOLUTION vs DATA OUTPUT RATE
Data Output Rate (Hz)
1k100 10k 100k
Effective Resolution (Bits)
20.0
19.8
19.6
19.4
19.2
19.0
18.8
18.6
18.4
18.2
18.0
TYPICAL CHARACTERISTICS
At T
A
= +25°C, V
DD
= +5V, CLK = 8MHz, and V
REF
= 4.096V, unless otherwise specified.