Datasheet

1/8 1/4 1/2
1 2
4
8 16 32 64 128
3
8
1
GainSetting(V/V)
0.15
0.10
0.05
0
0.05
0.10
0.15
-
-
-
GainError(%)
Selectedsampleswithtypicalperformance
3
2
1
0
1
2
3
-
-
-
GainErrorDrift:Mean 3 (ppm/ C)s
± °
1/8
1/4
1/2
1
2
4
8
16
32
64
128
GainSetting(V/V)
3
8
1
0.20
0.15
0.10
0.05
0
0.05
0.10
0.15
0.20
-
-
-
-
GainError:Mean 3 (%)s
±
1/8
1/4
1/2
1
2
4
8
16
32
64
128
GainSetting(V/V)
3
8
1
0.20
0.15
0.10
0.05
0
0.05
0.10
0.15
0.20
-
-
-
-
GainError:Mean 3 (%)s
±
1/8to1/4
1/4to1/2
1/2to1 1to
1to2
2to4
4to8
8to16
16to32
32to64
64to128
GainSettingChange
3
8
1
PGA280
www.ti.com ................................................................................................................................................ SBOS487A –JUNE 2009–REVISED SEPTEMBER 2009
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, VSP = +15V, VSN = –15V, VSON = 0V, VSOP = 5V, DVDD = +3V, DGND = 0V, R
L
= 2.5kΩ to VSOP/2 =
VOCM, G = 1V/V, using internal clock, BUF inactive, V
CM
= 0V, and differential input and output, unless otherwise noted.
GAIN ERROR DRIFT DISTRIBUTION vs
GAIN ERROR vs GAIN SETTING GAIN SETTING (MEAN with ±3σ)
Figure 9. Figure 10.
MAXIMUM GAIN ERROR DEVIATION BETWEEN GAIN ERROR DISTRIBUTION vs
SEQUENTIAL GAIN SETTINGS (MEAN with ±3σ) GAIN SETTING (MEAN with ±3σ)
Figure 11. Figure 12.
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