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ADCV0831 Datasheet

8 Bit Serial I/O Low Voltage Low Power ADC with Auto Shutdown in a SOT Package

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February 2000
ADCV0831
8 Bit Serial I/O Low Voltage Low Power ADC with
Auto Shutdown in a SOT Package
General Description
The ADCV0831 is a low voltage 8-bit successive approxima-
tion A/D converter with serial I/O. The I/O is a 3-wire serial in-
terface compatible with NSC’s MICROWIRE & Motorola’s
SPI standards. It easily interfaces with standard shift regis-
ters or microprocessors.
Low voltage and auto shutdown features make the
ADCV0831 ideal for portable battery operated electronic de-
vices. The main benefits are most apparent in small portable
electronic devices. The tiny A/D converter can be placed
anywhere on the board.
Applications
n Digitizing automotive sensors
n Process control monitoring
n Remote sensing in noisy environments
n Instrumentation
n Test systems
n Embedded diagnostics
Features
n Tiny 6-pin SOT 23 package
n Serial digital data link requires few I/O pins
n Auto Shutdown
n 0V to 3V analog input range with single 3V power
supply
n TTL/CMOS input/output compatible
Key Specifications
(For 3V supply, typical, unless otherwise noted.)
n Resolution: 8 bits
n Conversion time (fC = 700 kHz): 16µs
n Low power dissipation: 720µW
n Single supply: 2.7V to 5VDC
n Linearity error: ±1.5LSB over temperature
n No missing codes over temperature
n Shutdown supply current 10nA
Ordering Information
Temperature Range
(0˚C Tj +70˚C)
ADCV0831M6
ADCV0831M6X
Connection Diagram
Package
MA06A
MA06A
Supplied As
1k Units Tape and Reel
3k Units Tape and Reel
ADCV0831
DS100104-1
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
COPSmicrocontrollers and MICROWIREare trademarks of National Semiconductor Corporation.
© 2000 National Semiconductor Corporation DS100104
www.national.com


National Semiconductor Electronic Components Datasheet

ADCV0831 Datasheet

8 Bit Serial I/O Low Voltage Low Power ADC with Auto Shutdown in a SOT Package

No Preview Available !

Absolute Maximum Ratings (Notes 1, 3)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (VCC)
Voltage at Inputs and Outputs
Input Current at Any Pin (Note 4)
Package Input Current (Note 4)
Power Dissipation at TA = 25˚C
(Note 5)
ESD Susceptibility (Note 6)
5.5V
−0.3V to VCC + 0.3V
±5 mA
±20 mA
470 mW
2000V
Soldering Temperature (Note 7)
Convection Infrared (15 sec.)
Wave Soldering (4 sec.) (Note 7)
Storage Temperature
Thermal Resistance (θ JA)
215˚C
260˚C
−65˚C to +150˚C
265˚C/W
Operating Ratings (Notes 2, 3)
Temperature Range
Supply Voltage (VCC)
0˚CTj 70˚C
2.7VDC to 5V
Electrical Characteristics
The following specifications apply for VCC = 3VDC, and fCLK = 500 kHz unless otherwise specified. Boldface limits apply for
TA = TJ = TMIN to T MAX; all other limits TA = T J = 25˚C.
Symbol
Parameter
Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
Integral Linearity Error
±0.6
±1.5
LSB (max)
Offset Error
±0.1
±1.5
LSB (max)
Full Scale Error
±0.3
±1.5
LSB (max)
Resolution
8 Bits (min)
VIN Analog Input Voltage
(VCC + 0.05)
(GND − 0.05)
V (max)
V (min)
VIN(1)
VIN(0)
IIN(1)
IIN(0)
VOUT(1)
VOUT(0)
IOUT
ISOURCE
ISINK
ICC
Logical “1” Input Voltage
Logical “0” Input Voltage
Logical “1” Input Current
Logical “0” Input Current
Logical “1” Output Voltage
Logical “0” Output Voltage
TRI-STATE® Output Current
Output Source Current
Output Sink Current
Supply Current
VCC = 3V
VCC = 3V
VIN = 3V
VIN = 0V
Iout =-360µA
Iout =1.6 mA
VOUT = 0V
VOUT = 0V
VOUT = 3V
CS = HIGH
CS = LOW
0.01
0.01
2.8
0.24
0.01
2.6
7.4
0.01
200
2.0 V (min)
0.8 V (max)
1 µA (max)
−1 µA (max)
2.4 V (min)
0.4 V (max)
3.0 µA (max)
1.0 mA (min)
3.0 mA (min)
30 µA (max)
400 µA (max)
AC Electrical Characteristics
The following specifications apply for VCC = +3 VDC, and tr = t f = 20 ns unless otherwise specified. Boldface limits apply for
TA = TJ = T MIN to TMAX; all other limits TA = TJ = 25˚C.
Symbol
Parameter
Conditions
Typical Limits
Units
(Note 8) (Note 9)
fCLK Clock Frequency
700 kHz (max)
10 kHz (min)
tSET-UP
CS failing edge to CLK rising edge
Clock Duty Cycle
25 ns
40 % (min)
60 % (max)
TC Conversion Time
11 Clock
Periods
tpd
CLK Falling Edge to Data Valid
Low to High
CL = 100 pF
High to Low
142 250 ns (max)
70 200
t1H, t 0H CS Rising Edge to Data Output TRI-STATE
CL = 100 pF, RL =2 75 250 ns (max)
k
(see TRI-STATE Test Circuits)
CL = 100 pF, RL = 10
k
50
www.national.com
2


Part Number ADCV0831
Description 8 Bit Serial I/O Low Voltage Low Power ADC with Auto Shutdown in a SOT Package
Maker National Semiconductor
Total Page 9 Pages
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