PGA400-Q1
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SLDS186 –MARCH 2012
5.6 Analog Front Ends
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
STAGE 1 GAIN FOR RESISTIVE BRIDGE SENSORS
Sx_G1[2:0] = 000
3.0
Sx_G1[2:0] = 001
Sx_G1[2:0] = 010
Sx_G1[2:0] = 011
Sx_G1[2:0] = 100
Sx_G1[2:0] = 101
Sx_G1[2:0] = 110
Sx_G1[2:0] = 111
–3 dB, Gain = 111
4.4
6.8
10.2
14.6
25.5
34.0
51.0
7
Gain Steps
V/V
Bandwidth
KHz
5.7 Stage 2 Gain
PARAMETER
TEST CONDITIONS
MIN
0.97
1.06
1.18
1.31
1.45
1.61
1.79
1.98
2.20
2.44
2.71
3.00
3.34
3.74
4.12
4.61
5.09
5.67
6.26
6.93
7.70
8.57
9.54
10.62
11.76
13.02
14.48
16.03
17.72
19.61
21.72
23.85
120
TYP
MAX
UNIT
Sx_G2[4:0] = 00000
Sx_G2[4:0] = 00001
Sx_G2[4:0] = 00010
Sx_G2[4:0] = 00011
Sx_G2[4:0] = 00100
Sx_G2[4:0] = 00101
Sx_G2[4:0] = 00110
Sx_G2[4:0] = 00111
Sx_G2[4:0] = 01000
Sx_G2[4:0] = 01001
Sx_G2[4:0] = 01010
Sx_G2[4:0] = 01011
Sx_G2[4:0] = 01100
Sx_G2[4:0] = 01101
Sx_G2[4:0] = 01110
Sx_G2[4:0] = 01111
Sx_G2[4:0] = 10000
Sx_G2[4:0] = 10001
Sx_G2[4:0] = 10010
Sx_G2[4:0] = 10011
Sx_G2[4:0] = 10100
Sx_G2[4:0] = 10101
Sx_G2[4:0] = 10110
Sx_G2[4:0] = 10111
Sx_G2[4:0] = 11000
Sx_G2[4:0] = 11001
Sx_G2[4:0] = 11010
Sx_G2[4:0] = 11011
Sx_G2[4:0] = 11100
Sx_G2[4:0] = 11101
Sx_G2[4:0] = 11110
Sx_G2[4:0] = 11111
–3 dB, Gain Setting = 11111
1.01
1.11
1.23
1.37
1.52
1.68
1.87
2.07
2.29
2.55
2.83
3.13
3.48
3.90
4.30
4.81
5.31
5.92
6.52
7.23
8.04
8.95
9.96
11.06
12.27
13.58
15.10
16.71
18.53
20.49
22.70
25.06
1.05
1.16
1.28
1.42
1.58
1.76
1.94
2.16
2.39
2.65
2.94
3.26
3.62
4.06
4.48
5.01
5.54
6.16
6.79
7.53
8.37
9.32
10.37
11.51
12.79
14.15
15.72
17.40
19.34
21.37
23.68
26.28
Gain Steps
V/V
Bandwidth
KHz
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ELECTRICAL CHARACTERISTICS
7
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