HDAS-8MC Murata Power Solutions Inc, HDAS-8MC Datasheet - Page 3

• Manufacturer Part Number: HDAS-8MC
• Description: Data Acquisition System
• Manufacturer: Murata Power Solutions Inc

Footnotes:
c Analog inputs will withstand ±35V with power on. If the power is off, the maximum
d The gain equation error is guaranteed before external trimming and applies at gains
e Adjustable to zero.
f STROBE pulse width must be less than EOC period to achieve maximum throughput
TECHNICAL NOTES
1. Input channels are protected to 20 Volts beyond the powersupplies.
2. To retain high system throughput rates while digitizing low-level signals,
3. The HDAS devices have self-starting circuits for free-running sequential
4. For unipolar operation, connect BIPOLAR INPUT (pin 38) to S/H OUT (pin 39).
5. RDELAY may be a standard value 5% carbon composition or fi lm-type resistor.
6. RGAIN must be very accurate with low temperature coeffi cients. If neces-
7. ANALOG SIGNAL COMMON, POWER COMMON and DIGITAL COMMON are
8. For HDAS-16, tie pin 50 to a “signal source common” if possible. Otherwise
POWER REQUIREMENTS
Power Supply Ranges
Power Supply Currents
Power Dissipation
PHYSICAL/ENVIRONMENTAL
Operating Temp. Range, Case
MC Models
MM/883 Models
Storage Temperature Range
Weight
Package Type
+15V Supply
–15V Supply
+5V Supply
+15V Supply
–15V Supply
+5V Suppy
All digital output pins have one second short-circuit protection.
apply external high-gain amplifi ers foreach channel. MPS’s AM-551 is
suggested for such amplifi er-per-channel applications.
operation. If, however, in a power-upcondition the supply voltage slew rate
is less than 3V per microsecond, the free running state might not be initial-
ized. Apply a negative pulse to the STROBE, to eliminate this condition.
For bipolar operation, connect BIPOLAR INPUT (pin 38) to +10V REFERENCE
OUT (pin 40).
sary, fabricate the gain resistor from a precision metal-fi lm type in series
with a low value trim resistor or potentiometer. The total resistor tempera-
ture coeffi cient must be no greater than ±10ppm/°C.
connected internally. For optimal performance, tie all ground pins (17, 41,
42, 45, 46) directly to a large analog ground plane beneath the package.
tie pin 50 to pin 41 (ANA SIG COM).
safe input (no damage) is ±20V.
less than 50. This error increases at gains over 50.
rate.
+14.25
–14.25
+4.75
MIN.
–55
–65
—
—
—
—
0
www.murata-ps.com
1.4 ounces (39.7 grams)
62-pin cermanic DIP
+15.0
–15.0
+5.0
TYP.
—
—
—
—
—
—
—
+15.75
–15.75
+5.25
MAX.
+125
+150
+33
+15
1.25
+70
–30
UNITS
Watts
Volts
Volts
Volts
mA
mA
mA
°C
°C
°C
12-Bit, 50kHz, Complete Data Acquisition Systems
*Same as HDAS-16
Caution: Pins 49 and 50 do not have overvoltage protection; therefore, protected multiplexers,
such as MPS’s MX-1606 and MX-808 are recommended. See the General Operation description.
PIN NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
1
2
3
4
5
6
7
8
9
Technical enquiries email: [e-mail], tel:
CH3 IN
CH2 IN
CH1 IN
CH0 IN
MUX ENABLE
RDELAY
EOC
STROBE
A8
A4
A2
A1
RA8
RA4
RA2
RA1
DIGITAL COMMON
+5V SUPPLY
LOAD
CLEAR
ENABLE (Bits 9–12)
BIT 12 (LSB)
BIT 11
BIT 10
BIT 9
ENABLE (Bits 5–8)
BIT 8
BIT 7
BIT 6
BIT 5
ENABLE (Bits 1–4)
BIT 4
BIT 3
BIT 2
BIT 1 (MSB)
GAIN ADJUST
OFFSET ADJUST
BIPOLAR INPUT
SAMPLE/HOLD OUT
+10V REFERENCE OUT
ANALOG SIGNAL COMMON
ANALOG POWER COMMON
+15V SUPPLY
–15V SUPPLY
ANALOG SIGNAL COMMON
ANALOG SIGNAL COMMON
RGAIN LOW
RGAIN HIGH
AMP. IN HIGH 
AMP. IN LOW 
CH15 IN
CH14 IN
CH13 IN
CH12 IN
CH11 IN
CH10 IN
CH9 IN
CH8 IN
CH7 IN
CH6 IN
CH5 IN
CH4 IN
MULTIPLEXER
ADDRESS
OUT
MULTIPLEXER
ADDRESS
IN
HDAS-16, HDAS-8
HDAS-16
MDA_HDAS-16/8.B03 Page 3 of 7
[phone]
CH3 HIGH IN
CH2 HIGH IN
CH1 HIGH IN
CH0 HIGH IN
CH7 HIGH IN
CH6 HIGH IN
CH5 HIGH IN
CH4 HIGH IN
CH7 LOW IN
CH6 LOW IN
CH5 LOW IN
CH4 LOW IN
CH3 LOW IN
CH2 LOW IN
CH1 LOW IN
CH0 LOW IN
HDAS-8
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