TYPICAL CHARACTERISTICS (Cont.)
AVDD = +5V, DVDD = +5V, fOSC = 2.4576MHz, PGA = 1, RDAC = 150kΩ, fDATA = 10Hz, VREF ≡ (REF IN+) – (REF IN–) = +2.5V, unless otherwise specified.
IDAC ROUT vs VOUT
OFFSET DAC - GAIN vs TEMPERATURE
1.00020
1.00016
1.00012
1.00008
1.00004
1.00000
0.99996
0.99992
0.99988
0.99984
0.99980
0.99976
1.000
1.000
0.999
0.999
0.998
+85°C
+25°C
–40°C
–50
–30
–10
10
30
50
70
90
0
1
2
3
4
5
Temperature (°C)
VDD – VOUT (V)
IDAC MATCHING vs TEMPERATURE
IDAC NORMALIZED vs TEMPERATURE
3000
2000
1000
0
1.01
1.005
1
–1000
–2000
–3000
–4000
–5000
–6000
0.995
0.99
0.985
–50
–30
–10
10
30
50
70
90
–50
–30
–10
10
30
50
70
90
Temperature (°C)
Temperature (°C)
IDAC DIFFERENTIAL NON-LINEARITY
RANGE = 1, RDAC = 150kΩ, VREF = 2.5V
IDAC INTEGRAL NON-LINEARITY
RANGE = 1, RDAC = 150kΩ, VREF = 2.5V
0.5
0.4
0.5
0.4
0.3
0.3
0.2
0.2
0.1
0.1
0
0
–0.1
–0.2
–0.3
–0.4
–0.5
–0.1
–0.2
–0.3
–0.4
–0.5
0
32
64
96
128
160
192
224
255
0
32
64
96
128
160
192
224
255
IDAC Code
IDAC Code
ADS1218
11
SBAS187
BB [ BURR-BROWN CORPORATION ]
