Datasheet

ADS1217
SBAS260C
11
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.
1.00020
1.00016
1.00012
1.00008
1.00004
1.00000
0.99996
0.99992
0.99988
0.99984
0.99980
0.99976
OFFSET DAC: GAIN vs TEMPERATURE
Normalized Gain
Temperature (°C)
–50 –30 10–10 30 50 70 90
1.0000
1.000
0.999
0.999
0.998
IDAC
I
OUT
vs V
OUT
V
DD
– V
OUT
(V)
012345
I
OUT
(Normalized)
+85°C
–40°C
+25°C
1.010
1.005
1.000
0.995
0.990
0.985
IDAC NORMALIZED I
OUT
vs TEMPERATURE
I
OUT
(Normalized)
Temperature (°C)
–50 –30 10–10 30 50 70 90
3000
2000
1000
0
–1000
–2000
–3000
–4000
–5000
–6000
IDAC MATCHING vs TEMPERATURE
IDAC Match (ppm)
Temperature (°C)
–50 –30 10–10 30 50 70 90
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
IDAC DIFFERENTIAL NONLINEARITY
(Range = 1, R
DAC
= 150kΩ, V
REF
= 2.5V)
IDAC Code
0 25532 64 96 128 160 192 224
DNL (LSB)
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
IDAC INTEGRAL NONLINEARITY
(Range = 1, R
DAC
= 150kΩ, V
REF
= 2.5V)
IDAC Code
0 25532 64 96 128 160 192 224
INL (LSB)