SP574B/674B/1674B/774B
12–Bit Sampling A/D Converters
2
Copyright 2000 Sipex Corporation
ABSOLUTE MAXIMUM RATINGS
V
CC
to Digital Common .................................................. 0 to +16.5V
V
to Digital Common ................................................... 0 to +7V
Analog Common to Digital Common .........................................
±
1V
Control Inputs to Digital Common ................. –0.5V to V
LOGIC
+0.5V
(CE, CS, A
, 12/8, R/C)
Analog Input Voltage Range ...........................................
±
FS
±
30%
Analog Inputs to Analog Common ......................................
±
16.5V
(REF IN, BIP OFF, 10V
)
20V
to Analog Common........................................................
±
24V
REF OUT ...............................................Indefinite short to common
................................................................... Momentary short to V
CC
Power Dissipation ............................................................. 1000mW
Lead Temperature, Soldering .................................. 300C, 10Sec
J/C ..................................................................................... 45C/W
MTBF–25C Ground Base ................................2.915 million hours
MTBF–125C Missile Launch ...................... 10.16 thousand hours
Inputs exceeding +30% or –30% of FS will cause erratic performance.
CAUTION:
ESD (ElectroStatic Discharge) sensitive
device. Permanent damage may occur on
unconnected devices subject to high energy
electrostatic fields. Unused devices must be
stored in conductive foam or shunts.
Personnel should be properly grounded prior
to handling this device. The protective foam
should be discharged to the destination
socket before devices are removed.
SPECIFICATIONS
(Typical @ 25
°
C with V
CC
= +15V, V
EE
= 0V, V
LOGIC
= +5V unless otherwise noted.)
PARAMETER
RESOLUTION
All models
ANALOG INPUTS
Input Ranges
Bipolar
Unipolar
Input Impedance
SP574B/SP674B
10 Volt Input
20 Volt Input
SP1674B/SP774B
10 Volt Input
20 Volt Input
Nyquist Frequency
SP574B
SP674B
SP1674B
SP774B
DIGITAL INPUTS
Logic Inputs CE, CS R/C, A
O
, 12/8
Logic 1
Logic 0
Current
MIN.
TYP.
MAX.
UNIT
CONDITIONS
12
Bits
±
5,
±
10
V
V
0 to +10, 0 to +20
3.75
15
6.25
25
k
k
1.875
7.45
3.125
12.42
k
k
20
33
50
62.5
kHz
kHz
kHz
kHz
+2.4
–0.3
+5.5
+0.8
±
50
±
5
V
V
±
0.1
μ
A
μ
A
pF
–0.3V to +5.5V Input
0V to +5.5V Input
Capacitance
12/8 Control Input
DIGITAL OUTPUTS
Logic Outputs DB
11
–DB
0
, STS
Logic 1
Logic 0
Leakage (High Z State)
Capacitance
Parallel Data Output Codes
Unipolar
Bipolar
INTERNAL REFERENCE
Output Voltage
Output Current
5
Hardwire to V
LOGIC
or DIGITAL COMMON
+2.4
V
V
I
SOURCE
≤
500
μ
A
I
1.6mA
Data bits only
+0.4
±
40
μ
A
pF
5
Positive true binary
Positive true offset binary
10.00
±
0.1
V
2
mA
Note 1