Sensoray 425 - Manual (Page 30)

1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
A
A
B
B
C
C
D
D
GAIN ADJUST
GAIN SELECT
DAC REFERE
NCE
QUAD DA
C
VSS GENERA
TOR
A/D
INSTRUME
NT
AMPLIFI
ER
DAC SWITCHES
SHORTED TOGETHER
A/D INPUT
MUX
OFFSET ADJUST
DAC0 BUFF
ER
NEAR ADC
GUARD
Wednesday, July 10, 1996
FILE: 425-3.SCH
C
ANALOG SECTION, 425 BOAR
D
SENSORAY COMPANY, INCORPORATED
B
3
7
Title Size
Document Number
Rev
Date:
Sheet of
DC-DC_CONVERTERS 425-4.SCH
+5
V
+15V -15V AGND
DGND
SH
SHSH
SH0 SH1
CH0
SH2
CH1
SH3
CH2
SH4 SH5 SH6 SH7
SL
SL
SL
0
SL
1
CH0
SL
2
ADOUT
CH1
SL
3
CH2
SL
4
ADCS*
SL
5
SL
6
SL
7
ADCLK
ADCLK
ADCLK UNI*
SH0
-5V
-5V
-5V
SH1 SH2 SH3 SH4 SH5 SH6
UBUF0 UBUF0 UBUF0
SH7
PH1 PH2
SL
0
PH3
SL
1
SL
2
EDAC*
EDAC*
SL
3
SL
4
SL
5
SL
6
SL
7
PH0 AFB
0
PH1
D0
AOH0
AOH0
PH2
D1
AOH1
AOH1AOH1
PH1
PH3
D2
AOH2
AOH2AOH2
PH2
D3
AOH3
AOH3AOH3
PH3
D4 D5 D6 D7 A1 A2 WR*
LDAC*
VREF10
CSLSB* CSMSB*
-5V
VREF1
0
CH[0..2] D[0..7]
A[1..2]
+1
5V
+1
5V
+5
V
VCC
-15
V
-15V
+1
5V
+5
V
-15V +15
V
+5
V
-15V +15
V
+5
V
+15
V
+1
5V
+5
V
+15
V
-15
V
+1
5V
+1
5V
-15
V
+5
V
+1
5V
-15
V
+5
V
+1
5V
-15
V
-15
V
R8
*
C47
C26 0.1uF
C32
C63
C5
0.1uF
C68
0.1uF
U3 MAX191
10 11 13 14 15 16 17 18 20 19 21
9
22
8 1
3 4 5 6
24 12
7 2 23
D0/D8 D1/D9 D2/D10 D3/D11 D4 D5/SSTRB D6/CKOUT D7/DOUT CS RD HBEN BUSY PAR BIP PD
AIN+ AIN-
VREF
REFADJ
VDD DGND
AGND
VSS
CLK/SCLK
U24 MAX526
16 15 14 13 12 11 10
9
18 17 20
8
21 22
7
5 4 23 3 24 1 2 6 19
D0/D8 D1/D9 D2/D10 D3/D11 D4 D5 D6 D7 A0 A1 WR LDAC CSLSB CSMSB DGND
AGND
VSS VDD
VOUTA VOUTD VOUTC VOUTB
VREFAB VREFCD
R14 22
0
C70 0.1uF
C14 0.01uF
U11 AD6
20
1
8
2 3 4
5 6 7
RG
RG
-IN +IN -VS
REF OUT +VS
U26 DG44
5
1 8 9
16
3 6
11 14
2 7 10 15 5 12 4 13
E0 E1 E2 E3 S0 S1 S2 S3
S0 S1 S2 S3
GND
VL V- V+
U28 DG44
4
1 8 9
16
3 6
11 14
2 7 10 15 5 12 4 13
E0 E1 E2 E3 S0 S1 S2 S3
S0 S1 S2 S3
GND
VL V- V+
C80 0.1uF
R13 75
K
C43
470p
F
R3 10
+ -
U21 LT
1007
3 2
6
7
1
4
8
U34 AD58
7
2 3 1 4
6 7 5 8
VIN NC NC AGND
VOUT
NC
TRIM FILT
C59 0.1uF
C4 10uF,6V
C6
0.1uF
C13
4.7uF,10V
U15 50
8
4 5 6 7 12 11 10 9
8 1
16 15
2
14
13
3
X0 X1 X2 X3 X4 X5 X6 X7
Y A B C E
AGND
VDD VSS U19 50
8
4 5 6 7 12 11 10 9
8 1
16 15
2
14
13
3
X0 X1 X2 X3 X4 X5 X6 X7
Y A B C E
AGND
VDD VSS
R5 33
0K
C42 0.1uF
C19 0.1uF
C22
0.1uF
C38 0.1uF
C39
0.1uF
Q1
2N440
3
R9 10K-RPA
CK
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
R10 10K-RPA
CK
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
U36 79
L05
5 6 7
1 2 3
GND IN IN
OUT
IN IN
P2
HEADER40
M
2 6
10 14 18 22 26 30
4 8
12 16 20 24 28 32
1 5 9
13 17 21 25 29
3 7
11 15 19 23 27 31 36 37 38 33 34 39 40
SH0 SH1 SH2 SH3 SH4 SH5 SH6 SH7 SL0 SL1 SL2 SL3 SL4 SL5 SL6 SL7 PH0 PH1 PH2 PH3 PH4 PH5 PH6 PH7 PL0 PL1 PL2 PL3 PL4 PL5 PL6 PL7 +12V TREF GND GND GND SHLD SHLD
R6 681,1
%
R1 200
-POT
R2 100
K-POT
R7
1.10K,1
%
C10
0
3300
pF
+5
V
DGND
ADCS*
D[0..7]
CH[0..2]
ADCLK
WR*
A[1..2]
EDAC* UNI* LDAC*
CSLSB* CSMSB*
ADOUT