ADC0831/832/834/838 8-Bit Serial I/O ADCs w/Multiplexer Optns (jp)Multiplexer Options
A D
C 0831/A
D C
0832/A D
C 0834/A
D C
0838 8
I/O
A /D

A D
C 0831/A
D C
0832/A D
C 0834/A
D C
U pdated
. SG
8
I/O
A /D
A D
C 0834
8
I/O
A /D
A D
C 0838
8
I/O
A /D
ADC0831/ADC0832/ADC0834/ADC0838 8 I/O A/D
TRI-STATE® COPS™MICROWIRE™

248
8


5VDC 248
5V0V5V TTL/MOS 0.381420DIP 20PLCC (ADC0838 )
8 ± 1LSB 5VDC 15mW 32μs

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Top View
COMAGND Top View Top View
ADC0832 2-Channel MUX Dual-In-Line Package (N
COMGND VREFVCC Top View Top View
ADC0832 2-Channel MUX Small Outline Package (WM)
Top View
Top View
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A D
C 0831/A
D C
0832/A D
C 0834/A
D C
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(Note 12)
VCCVVREF 5VVREF VCC 0.1VTA TJ 25fCLK 250kHz TMIN TMAX CCNCCVCCWM 0 70
V (Note 3) 15 mA VCC (Note 3) 6.5V 0.3VVCC 0.3V 0.3VVCC 0.3V (Note 4) ± 5 mA ± 20 mA 65 150
TA 25 ( ) 0.8W ( 10 ) () 260
(PLCC)SO (60 ) 215 (15 ) 220
ESD (Note5) 2000V
VCC 4.5 VDC 6.3 VDC TMIN TA TMAX
ADC0832/8CIWM 40 85 ADC0831/2/4/8CCN 20 80 ADC0838CCV 20 80 ADC0831/2/4/8CCWM 20 80
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A D
C 0831/A
D C
0832/A D
C 0834/A
D C
()
VCCVVREF 5VVREF VCC 0.1VTA TJ 25fCLK 250kHz TMIN TMAX CCNCCVCCWM 0 70
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Note 2:
Note 3: (6.3 8.5V)VGNDVCCGNDV VCC A/D V VCCVCC 6.5VVV (6.0 Figure 3 )
Note 4: (VIN VVIN V ) 5mA 5mA (20mA)4
Note 5: 100pF1.5kΩ
Note 6:
Note 7: ADC0832
Note 9:
Note 11: MSB ( )
Note 13:
Note 14: Design Limit
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A D
C 0831/A
D C
0832/A D
C 0834/A
D C
0838

Unadjusted Offset Error vs. VREF Voltage Linearity Error vs. VRE Voltage
Linearity Error vs. Temperature Linearity Error vs. fCLK
Power Supply Current vs. Temperature (ADC0838, ADC0831, ADC0834)
Note: ADC0832 IREF
Output Current vs. Temperature
Leakage Current Test Circuit
ADC0831 Start Conversion Timing
Lo w
18
LS B A
D C
08 38
T im
in g
*
/
N o
te 1
C T1
D
SE LE
1”
A D
C 08
32
D I

SE LE
0”
1”
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A D
C 0831/A
D C
0832/A D
C 0834/A
D C
“” “” “”“”
1
1 1MUX MUX
0 1 0 1 0 1 0 1 MUX
MUX DI ADC08311
ADC0838 “”
TABLE 1. Multiplexer/Package Options
COMAGND
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A D
C 0831/A
D C
0832/A D
C 0834/A
D C
COMAGND
50mVVCC ( 5V) 50mV
2.0


1. CS ( ) Low MUX
2. ( ) A/D
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3. (DI) MUX “1” ( ) MUX 2 4
4. MUX 1/2 ( )MUX SARHigh DI ( )
5. (DO)TRI-STATE MUX 1
6. SAR DO (MSB )
7. 8 SAR 1/2Low
8. LSB ( (SE) ) 8 SEMSB LSB DO DO LowCS High LowADC0838 SE HighLSBDO SE LowLSB ADC0831MSB
9. CS High CS High Low
DIDO I/O 1DO MUX DI
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A D
C 0831/A
D C
0832/A D
C 0834/A
D C
A/D VREF VCC (ADC0832 ) A/D

VCC 5V ( ) (1LSBVREF/256 )
a) Ratiometric b) Absolute with a reduced Span
FIGURE 2. Reference Examples
“” “” (60Hz )
“”“” 1/2

250kHz60Hz1/4 LSB ( 5mV)6.63V
“” “” DC 1kΩ
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DC ± 1μA 1kΩ 1mV RC
5.0
5.1
A/D VIN ( ) VIN ( )0000 0000 0000 0001 DC1/2LSB (VREF 5.000VDC 1/2 LSB 9.8mV)
5.2
1.5LSB 1111 11101111 1111 VREF (ADC0832 VCC)
5.3
A/D ( ) 1/2 LSB (LSB1 LSB /256 ) VIN ( )“” “” 00HEX 01HEX
VIN ( ) VIN ( )
VMAX VMIN ( ) ( )
VREF (VCC)FEHEXFFHEX
6.0
FIGURE 3. An On-Chip Shunt Regulator Diode
Figure 45 2
V VCC Figure 67 VCC
A/D (10k 400kHz )VCC LSB 1/4 VZ CLK V
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A D
C 0831/A
D C
0832/A D
C 0834/A
D C
FIGURE 5. Using the A/D as the System Supply Regulator
* 4.5V VCC 6.3V
* 4.5V VCC 6.3V
FIGURE 7. Remote Sensing Clock and Power on 1 Wire
Digital Link and Sample Controlling Software for theSerially Oriented COP420 and the Bit Programmable I/O INS8048
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A D
C 0831/A
D C
0832/A D
C 0834/A
D C
* ADC0838
*VIN( ) 0.15 VCC 15 of VCC VXDR 85 of VCC
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A D
C 0831/A
D C
0832/A D
C 0834/A
D C
Zero-Shift and Span Adjust: 2V VIN 5V
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b) 10-Bit A/D
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4 mA-20 mA Current Loop Converter
1500V

C
10 0μ
s H ig
h

40 kH
z

10
C LK
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A D
C 0831/A
D C
0832/A D
C 0834/A
D C
Wide Body Molded Small-Outline Package (WM) NS Package Number M14B
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A D
C 0831/A
D C
0832/A D
C 0834/A
D C
Wide Body Molded Small-Outline Package (WM) NS Package Number M20B
Molded Dual-In-Line Package (N) NS Package Number N08E
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Molded Dual-In-Line Package (N) NS Package Number N14A
Molded-Dual-In-Line Package (N) NS Package Number N20A
A D
C 0831/A
D C
0832/A D
C 0834/A
D C
0838 8
I/O
A /D
(CEO) (GENERAL COUNSEL) a (b)

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inches (millimeters) ()
Molded Chip Carrier Package (V) Order Number ADC0838BCV or ADC0838CCV
NS Package Number V20A