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TABLES
■
INPUT BIAS SELECTION TABLE
[TABLE 1]
SW2
WEIGHT OF BIT
1
2
3
4
5
6
7
8
1
1
0
0
0
0
0
0
+76 mV
1
0
1
0
0
0
0
0
+38 mV
1
0
0
1
0
0
0
0
+19 mV
1
0
0
0
1
0
0
0
+10 mV
1
0
0
0
0
1
0
0
+ 5 mV
1
0
0
0
0
0
1
0
+ 2.5mV
1
0
0
0
0
0
0
1
+ 1.2mV
1
0
0
0
0
0
0
0
+ 0 mV
0
1
1
1
1
1
1
1
– 1.5mV
0
1
1
1
1
1
1
0
– 2.5mV
0
1
1
1
1
1
0
1
– 3.5mV
0
1
1
1
1
0
1
1
– 6 mV
0
1
1
1
0
1
1
1
–11 mV
0
1
1
0
1
1
1
1
–20 mV
0
1
0
1
1
1
1
1
–39 mV
0
0
1
1
1
1
1
1
–76 mV
Note 1: The SW2-1 is turned ON (1) with suppressed zero
range, while it is turned OFF (0) with elevated zero
range.
Note 2: With suppressed zero range, weight of bit (mV) is
added by turning ON (1) each one of the SW2-8 to
SW2-2, while with elevated zero range, it is added by
turning OFF (0) the same.
For example, 20mV bias (zero suppression) is nearly
obtained by turning on SW2-1 (positive), SW2-4 and
SW2-8 (19mV + 1.2mV = 20.2mV).
Note 3: When the test pin reads a positive voltage, turning one
bit ON (1) decreases the bias.
When the test pin reads a negative voltage, turning
one bit OFF (0) increases the bias.
■
INPUT RANGE SELECTION TABLE
[TABLE 2]
SW3
GAIN
SPAN [mV]
100%IN – 0%IN
1
2
3
4
5
6
7
8
1
1
1
1
1
1
1
1
1 – 2
50 – 100
1
1
1
1
1
1
1
0
2 – 3
33 – 50
1
1
1
1
1
1
0
1
3 – 4
25 – 33
1
1
1
1
1
1
0
0
4 – 5
20 – 25
1
1
1
1
1
0
1
1
5 – 6
16.7 – 20.0
1
1
1
1
1
0
1
0
6 – 7
14.3 – 16.7
1
1
1
1
1
0
0
1
7 – 8
12.5 – 14.3
1
1
1
1
1
0
0
0
8 – 9
11.1 – 12.5
1
1
1
1
0
1
1
1
9 – 10
10.0 – 11.1
1
1
1
1
0
1
1
0
10 – 11
9.0 – 10.0
1
1
1
0
1
1
1
1
11 – 12
8.3 – 9.0
1
1
1
0
1
1
1
0
12 – 13
7.7 – 8.3
1
1
1
0
1
1
0
1
13 – 14
7.3 – 7.7
1
1
1
0
1
1
0
0
14 – 15
6.7 – 7.3
1
1
1
0
1
0
1
1
15 – 16
6.3 – 6.7
1
1
1
0
1
0
1
0
16 – 17
5.9 – 6.3
1
1
1
0
1
0
0
1
17 – 18
5.6 – 5.9
1
1
1
0
1
0
0
0
18 – 19
5.3 – 5.6
1
1
1
0
0
1
1
1
19 – 20
5.0 – 5.3
1
1
1
0
0
1
1
0
20 – 21
4.8 – 5.0
1
1
0
1
1
1
1
1
21 – 22
4.5 – 4.8
1
1
0
1
1
1
1
0
22 – 23
4.3 – 4.5
1
1
0
1
1
1
0
1
23 – 24
4.2 – 4.3
1
1
0
1
1
1
0
0
24 – 25
4.0 – 4.2
1
1
0
1
1
0
1
1
25 – 26
3.8 – 4.0
1
1
0
1
1
0
1
0
26 – 27
3.7 – 3.8
1
1
0
1
1
0
0
1
27 – 28
3.5 – 3.7
1
1
0
1
1
0
0
0
28 – 29
3.4 – 3.5
1
1
0
1
0
1
1
1
29 – 30
3.3 – 3.4
1
1
0
1
0
1
1
0
30 – 31
3.2 – 3.3
1
1
0
0
1
1
1
1
31 – 32
3.1 – 3.2
1
1
0
0
1
1
1
0
32 – 33
3.0 – 3.1
Note 1: Gain indicates the multiplying factor adjustable with
SW3.
Note 2: Gain is calculated by using the following equation:
Gain =
2000 (mV)
20 (V100% – V0%)
Where V100% = input span
V0% = input zero
Add an weight of bits according to the gain value.
For example, with 0 – 4.2mV input, the calculated
gain, 23.8, is rounded to either 23 or 24.
Then turn off (0) SW3-3 and SW3-7.
Alternately, turn off (0) SW3-3, SW3-7 and SW3-8.
6TS1
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-4211 Rev.7 P. 4 / 4