SPECIFICATIONS (CONT)
At +25°C, rated power supplies, 1.5µs conversion time, and after 6-minute warm-up, unless otherwise noted.
ADC803CM
TYP
ADC803BM
TYP
ADC803SM
TYP
PARAMETER
MIN
MAX
MIN
MAX
MIN
MAX
UNITS
POWER SUPPLY REQUIREMENTS
Power Consumption
Rated Voltage: Analog (±VCC
Digital (VDD
Supply Drain: +15V
)
±14.25
+4.75
±15
+5
+27
–38
+180
±15.75
+5.25
+32
–55
+210
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
VDC
VDC
mA
mA
mA
)
–15V
+5V
TEMPERATURE RANGE (Ambient)
Specification
Storage
–25
–55
+85
+125
*
*
*
*
–55
*
+125
*
°C
°C
* Same specification as for ADC803CM.
NOTES: (1) Adjustable to zero. See Optional Gain and Offset Adjustment section. (2) FSR means Full Scale Range. For example, unit connected for ±10V has
20V FSR. (3) See Optional Clock Rate Control section. For faster conversion time at less resolution, see section on External Short Cycle. (4) Conversion time is
factory-set at approximately 1.4µs at +25°C. As temperature increases, the conversion time increases. At +125°C the conversion time will be no more than 1.7µs.
No Missing Codes is guaranteed over –55°C to +125°C provided the conversion time is allowed to increase with temperature.
ADC803 dynamic performance characteristics are described in a report titled “Analogue-to-Digital Converter Performance Tests Using the Fast Fourier Transform”
by R. A. Belcher, University College of Swansea, Wales, UK. (available from Burr-Brown on letterhead request).
CONNECTION DIAGRAM
(MSB) Bit 1
1
2
3
4
5
6
7
8
9
32 Analog Common
Reference
Bit 2
31 +15VDC Supply (+VCC)
Bit 3
30 –15VDC Supply (–VCC
29 Bipolar Offset
28 Analog Common
27 Sense
)
Bit 4
Bit 5
Bit 6
+5VDC (VDD) Supply
26 Comparator In
25 10V
1kΩ
2kΩ
Digital Common
(1)
24 20V
Status 10
Bit 7 11
Bit 8 12
Bit 9 13
Bit 10 14
Bit 11 15
Bit 12 16
23 –15VDC Supply (–VCC
)
22 +5VDC Supply (VDD
)
12-Bit SAR
21 Digital Common
20 +15VDC Supply (+VCC
19 Clock Rate Control
18 Convert Command
17 Clock Out
)
545Ω
Comparator
Clock
NOTE: (1) Serial data is not guaranteed.
ORDERING INFORMATION
ABSOLUTE MAXIMUM RATINGS
Analog Supply Voltage To Analog Common .................................... ±18V
Digital Supply Voltage To Digital Common......................................... +7V
Digital Controls Inputs ...................................................................... +5.5V
Analog Inputs ..................................................................................... ±15V
Operating Temperature: Ambient .................................................. +125°C
Case....................................................... +135°C
ADC803
X
M
Q
Basic Model Number
Performance Grade Code
B, C = –25°C to +85°C
S = –55°C to +125°C
Storage Temperature..................................................................... +125°C
Package Code
M = Metal DIP
Reliability Screening
Q = Q-Screened
PACKAGE INFORMATION
PACKAGE DRAWING
MODEL
PACKAGE
NUMBER(1)
ADC803
32-Pin Metal
116
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix D of Burr-Brown IC Data Book.
®
3
ADC803
BB [ BURR-BROWN CORPORATION ]
