®
®
ADS-931
Table 2a. Setting Output Coding Selection (Pin 35)
OUTPUT FORMAT
Complementary Offset Binary
Offset Binary
Complementary Two’s Complement
(Using MSB, pin 29)
Two’s Complement
(Using MSB, pin 29)
Straight Binary
Complimentary Binary
PIN 35 LOGIC LEVEL
1
0
1
0
1
0
Table 2b. Output Coding
STRAIGHT BINARY
COMP. BINARY
UNIPOLAR
SCALE
–FS+1 LSB
–FS +1 1/2 LSB
–7/8 FS
–3/4 FS
–1/2 FS
–1/2FS–1/2LSB
–1/4 FS
–1/8 FS
–1 LSB
–1/2 LSB
0
INPUT
RANGE
0 to –5.5V
–5.499916
–5.499874
–4.812500
–4.125000
–2.750000
–2.749958
–1.375000
–0.687500
–0.000084
–0.000042
0.000000
OUTPUT CODING
MSB
1111 1111
LSB "1" to
1110 0000
1100 0000
1000 0000
0111 1111
0100 0000
0010 0000
0000 0000
LSB "0" to
0000 0000
LSB
1111
"0"
0000
0000
0000
1111
0000
0000
0000
"1"
0000
1111
0000
0000
0000
1111
0000
0000
0001
0000
MSB
LSB
0000
1111
1111
1111
0000
1111
1111
1110
1111
MSB
0111
0110
0100
0000
1111
1100
1010
1000
1000
LSB
1111 1111
LSB "1" to "0"
0000 0000
0000 0000
0000 0000
1111 1111
0000 0000
0000 0000
0000 0000
LSB "0" to "1"
0000 0000
1111
0000
0000
0000
1111
0000
0000
0001
0000
MSB
1000
1001
1011
1111
0000
0011
0101
0111
0111
LSB
0000
1111
1111
1111
0000
1111
1111
1110
1111
INPUT
RANGE
±2.75V
+2.749916
+2.749874
+2.062500
+1.375000
0.000000
–0.000084
–1.375000
–2.062500
–2.749916
–2.749958
–2.750000
BIPOLAR
SCALE
+FS –1 LSB
+FS –1 1/2 LSB
+3/4 FS
+1/2 FS
0
–1 LSB
–1/2 FS
–3/4 FS
–FS +1 LSB
–FS + 1/2 LSB
–FS
0000 0000 0000
LSB "0" to "1"
0001 1111 1111
0011 1111 1111
0111 1111 1111
1000 000
000
1011 1111 1111
1101 1111 1111
1111 1111 1111
LSB "1" to "0"
1111 1111 1111
0000 0000
LSB "0" to "1"
1111 1111
1111 1111
1111 1111
0000 0000
1111 1111
1111 1111
1111 1111
LSB "1" to "0"
1111 1111
OFFSET BINARY
COMP. OFF. BIN.
TWO'S COMP.
COMP. TWO'S COMP.
Table 3. Input Connections
Input Range
0 to –5.5V
±2.75V
Input Pin
Pin 3
Pin 3
Connect
Pin 1 To Pin 2
Pin 2 is No Connect
8
MURATA-PS [ MURATA POWER SOLUTIONS INC. ]
