Datasheet

5
®
ADS1250
TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, V
D
= V
S
= +5V, CLK = 9.6MHz, PGA = 1, and V
REF
= 4.096, unless otherwise specified.
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
RMS NOISE vs INPUT VOLTAGE (PGA = 1)
Differential Analog Input Voltage (V)
–4.0 –3.0 –2.0 –1.0 0.0 1.0 2.0 3.0 4.0
RMS Noise (ppm of FS)
20
15
10
5
0
INTEGRAL NON-LINEARITY vs TEMPERATURE
Temperature (°C)
–60 –40 –20 0 20 40 60 80 100
INL (ppm of FS)
PGA = 8
PGA = 2
PGA = 4
PGA = 1
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
RMS NOISE vs TEMPERATURE
Temperature (°C)
–60 –40 –20 0 20 40 60 80 100
RMS Noise (ppm of FS)
PGA = 1
PGA = 8
PGA = 2
PGA = 4
RMS NOISE vs DATA OUTPUT RATE
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
10 100 1000 10000 100001
Data Output Rate (Hz)
RMS Noise (ppm of FS)
PGA = 1
PGA = 8
PGA = 2
PGA = 4
EFFECTIVE RESOLUTION
vs DATA OUTPUT RATE
20.0
19.0
18.0
17.0
16.0
10 100 1000 10000 100001
Data Output Rate (Hz)
Effective Resolution Bits (rms)
PGA = 1
PGA = 8
PGA = 2
PGA = 4
INTEGRAL NON-LINEARITY
vs DATA OUTPUT RATE (PGA = 1)
14.0
13.5
13.0
12.5
12.0
11.5
11.0
10.5
10.0
10 100 1000 10000 100001
Data Output Rate (Hz)
INL (ppm of FS)